THIENOPYRIMIDINE DERIVATIVES, A PROCESS FOR THEIR PREPARATION AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM

Compounds of formula (I): wherein R1, R2, R3, R4, R5, R6, R7, R12, X, A and n are as defined in the description. Medicinal products containing the same which are useful in treating pathologies involving a deficit in apoptosis, such as cancer, auto-immune diseases, and diseases of the immune system.

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Description

The present invention relates to new thienopyrimidine derivatives, to a process for their preparation and to pharmaceutical compositions containing them.

The compounds of the present invention are new and have very valuable pharmacological characteristics in the field of apoptosis and cancerology.

Apoptosis, or programmed cell death, is a physiological process that is crucial for embryonic development and maintenance of tissue homeostasis.

Apoptotic-type cell death involves morphological changes such as condensation of the nucleus, DNA fragmentation and also biochemical phenomena such as the activation of caspases which cause damage to key structural components of the cell, so inducing its disassembly and death. Regulation of the process of apoptosis is complex and involves the activation or repression of several intracellular signalling pathways (Cory S. et al., Nature Review Cancer 2002, 2, 647-656).

Deregulation of apoptosis is involved in certain pathologies. Increased apoptosis is associated with neurodegenerative diseases such as Parkinson's disease, Alzheimer's disease and ischaemia. Conversely, deficits in the implementation of apoptosis play a significant role in the development of cancers and their chemoresistance, in auto-immune diseases, inflammatory diseases and viral infections. Accordingly, absence of apoptosis is one of the phenotypic signatures of cancer (Hanahan D. et al., Cell 2000, 100, 57-70).

The anti-apoptotic proteins of the Bcl-2 family are associated with numerous pathologies. The involvement of proteins of the Bcl-2 family is described in numerous types of cancer, such as colon cancer, breast cancer, small-cell lung cancer, non-small-cell lung cancer, bladder cancer, ovarian cancer, prostate cancer, chronic lymphoid leukaemia, lymphoma, myeloma, acute myeloid leukemia, pancreatic cancer, etc. Overexpression of the anti-apoptotic proteins of the Bcl-2 family is involved in tumorigenesis, in resistance to chemotherapy and in the clinical prognosis of patients affected by cancer. Notably, Mcl-1, an anti-apoptotic Bcl-2 family member, is overexpressed in various types of cancer (Beroukhim R. et al., Nature 2010, 899-905). There is, therefore, a therapeutic need for compounds that inhibit the anti-apoptotic activity of the proteins of the Bcl-2 family.

In addition to being new, the compounds of the present invention have pro-apoptotic properties making it possible to use them in pathologies involving a defect in apoptosis, such as, for example, in the treatment of cancer and of immune and auto-immune diseases.

The present invention relates more especially to compounds of formula (I):

wherein:

    • A represents a linear or branched (C1-C6)alkyl group, a linear or branched (C2-C6)alkenyl group, a linear or branched (C2-C6)alkynyl group, a linear or branched (C1-C6)alkoxy group, —S—(C1-C6)alkyl group, a linear or branched (C1-C6)polyhaloalkyl, a hydroxy group, a cyano, —NR10R10′, -Cy6 or an halogen atom,
    • R1, R2, R3, R4 and R5 independently of one another represent a hydrogen atom, a halogen atom, a linear or branched (C1-C6)alkyl group, a linear or branched (C2-C6)alkenyl group, a linear or branched (C2-C6)alkynyl group, a linear or branched (C1-C6)polyhaloalkyl, a hydroxy group, a linear or branched (C1-C6)alkoxy group, —S—(C1-C6)alkyl group, a cyano, a nitro group, -alkyl(C0-C6)—NR8R8′, —O-Cy1, -alkyl(C0-C6)-Cy1, -alkenyl(C2-C6)-Cy1, -alkynyl(C2-C6)-Cy1, —O-alkyl(C1-C6)—R9, —C(O)—OR8, —O—C(O)—R8, —C(O)—NR8R8′, —NR8—C(O)—R8′, —NR8—C(O)—OR8′, -alkyl(C1-C6)—NR8—C(O)—R8′, —SO2—NR8R8′, —SO2-alkyl(C1-C6),
    • or the substituents of one of the pairs (R1, R2), (R2, R3), (R1, R3), (R4, R5) when grafted onto two adjacent carbon atoms, form together with the carbon atoms carrying them an aromatic or non-aromatic ring composed of from 5 to 7 ring members, which may contain from one to 3 heteroatoms selected from oxygen, sulphur and nitrogen, it being understood that resulting ring may be substituted by a group selected from a linear or branched (C1-C6)alkyl group, —NR10R10′, -alkyl(C0-C6)-Cy1 or an oxo,
    • X represents a carbon or a nitrogen atom,
    • R6 represents a hydrogen, a linear or branched (C1-C8)alkyl group, an aryl, an heteroaryl group, an arylalkyl(C1-C6) group, an heteroarylalkyl(C1-C6) group,
    • R7 represents a linear or branched (C1-C6)alkyl group, a linear or branched (C2-C6)alkenyl group, a linear or branched (C2-C6)alkynyl group, -Cy3, -alkyl(C1-C6)-Cy3, -alkenyl(C2-C6)-Cy3, -alkynyl(C2-C6)-Cy3, -Cy3-Cy4, -alkynyl(C2-C6)—O-Cy3, -Cy3-alkyl(C0-C6)—O-alkyl(C0-C6)-Cy4, an halogen atom, a cyano, —C(O)—R11, —C(O)—NR11R11′,
    • R8 and R8′ independently of one another represent a hydrogen atom, a linear or branched (C1-C6)alkyl group, or -alkyl(C0-C6)-Cy1, or (R8, R8′) form together with the nitrogen atom carrying them an aromatic or non-aromatic ring composed of from 5 to 7 ring members, which may contain in addition to the nitrogen atom from one to 3 heteroatoms selected from oxygen, sulphur and nitrogen, it being understood that the nitrogen in question may be substituted by a group representing a hydrogen atom, or a linear or branched (C1-C6)alkyl group and it being understood that one or more of the carbon atoms of the possible substituents, may be deuterated,
    • R9 represents -Cy1, -Cy1-alkyl(C0-C6)-Cy2, -Cy1-alkyl(C0-C6)—O-alkyl(C0-C6)-Cy2, -Cy1-alkyl(C0-C6)—NR8-alkyl(C0-C6)-Cy2, -Cy1-Cy2-O-alkyl(C0-C6)-Cy5, —C(O)—NR8R8′, —NR8R8′, —OR8, —NR8—C(O)—R8′, —O-alkyl(C1-C6)—OR8, —SO2—R8, —C(O)—OR8, —NH—C(O)—NH—R8,
    • R10, R10′, R11 and R11′ independently of one another represent a hydrogen atom or an optionally substituted linear or branched (C1-C6)alkyl group,
    • R12 represents a hydrogen or a hydroxy group,
    • Cy1, Cy2, Cy3, Cy4, Cy5 and Cy6 independently of one another, represent a cycloalkyl group, a heterocycloalkyl group, an aryl or an heteroaryl group,
    • n is an integer equal to 0 or 1,
      it being understood that:
    • “aryl” means a phenyl, naphthyl, biphenyl, indanyl or indenyl group,
    • “heteroaryl” means any mono- or bi-cyclic group composed of from 5 to 10 ring members, having at least one aromatic moiety and containing from 1 to 3 heteroatoms selected from oxygen, sulphur and nitrogen,
    • “cycloalkyl” means any mono- or bi-cyclic non-aromatic carbocyclic group containing from 3 to 10 ring members,
    • “heterocycloalkyl” means any mono- or bi-cyclic non-aromatic carbocyclic group containing from 3 to 10 ring members, and containing from 1 to 3 heteroatoms selected from oxygen, sulphur and nitrogen, which may include fused, bridged or spiro ring systems,
      it being possible for the aryl, heteroaryl, cycloalkyl and heterocycloalkyl groups so defined and the alkyl, alkenyl, alkynyl, alkoxy, to be substituted by from 1 to 4 groups selected from optionally substituted linear or branched (C1-C6)alkyl, optionally substituted linear or branched (C2-C6)alkenyl group, optionally substituted linear or branched (C2-C6)alkynyl group, optionally substituted linear or branched (C1-C6)alkoxy, optionally substituted (C1-C6)alkyl-S—, hydroxy, oxo (or N-oxide where appropriate), nitro, cyano, —C(O)—OR′, —O—C(O)—R′, —C(O)—NR′R″, —NR′R″, —(C═NR′)—OR″, linear or branched (C1-C6)polyhaloalkyl, trifluoromethoxy, or halogen, it being understood that R′ and R″ independently of one another represent a hydrogen atom or an optionally substituted linear or branched (C1-C6)alkyl group, and it being understood that one or more of the carbon atoms of the preceding possible substituents, may be deuterated,
      their enantiomers, diastereoisomers and atropoisomers, and addition salts thereof with a pharmaceutically acceptable acid or base.

In another embodiment, the invention relates to compounds of formula (I-a):

wherein:

    • A represents a linear or branched (C1-C6)alkyl group or an halogen atom,
    • R1, R2, R3, R4 and R5 independently of one another represent a hydrogen atom, a halogen atom, a linear or branched (C1-C6)alkyl group, a linear or branched (C2-C6)alkenyl group, a linear or branched (C2-C6)alkynyl group, a linear or branched (C1-C6)polyhaloalkyl, a hydroxy group, a linear or branched (C1-C6)alkoxy group, —S—(C1-C6)alkyl group, a cyano, a nitro group, -alkyl(C0-C6)—NR8R8′, —O-Cy1, -alkyl(C0-C6)-Cy1, -alkenyl(C2-C6)-Cy1, -alkynyl(C2-C6)-Cy1, —O-alkyl(C1-C6)—R9, —C(O)—OR8, —O—C(O)—R8, —C(O)—NR8R8′, —NR8—C(O)—R8′, —NR8—C(O)—OR8′, -alkyl(C1-C6)—NR8—C(O)—R8′, —SO2—NR8R8′, —SO2-alkyl(C1-C6),
    • or the substituents of one of the pairs (R1, R2), (R2, R3), (R1, R3), (R4, R5) when grafted onto two adjacent carbon atoms, form together with the carbon atoms carrying them an aromatic or non-aromatic ring composed of from 5 to 7 ring members, which may contain from one to 3 heteroatoms selected from oxygen, sulphur and nitrogen, it being understood that resulting ring may be substituted by a group selected from a linear or branched (C1-C6)alkyl group, —NR10R10′, -alkyl(C0-C6)-Cy1 or an oxo,
    • X represents a carbon or a nitrogen atom,
    • R6 represents a hydrogen, a linear or branched (C1-C6)alkyl group, an aryl, an heteroaryl group, an arylalkyl(C1-C6) group, an heteroarylalkyl(C1-C6) group,
    • R7 represents a linear or branched (C1-C6)alkyl group, a linear or branched (C2-C6)alkenyl group, a linear or branched (C2-C6)alkynyl group, -Cy3, -alkyl(C1-C6)-Cy3, -alkenyl(C2-C6)-Cy3, -alkynyl(C2-C6)-Cy3, -Cy3-Cy4, -Cy3-alkyl(C0-C6)—O-alkyl(C0-C6)-Cy4, an halogen atom, a cyano, —C(O)—R11, —C(O)—NR11R11′,
    • R8 and R8′ independently of one another represent a hydrogen atom, a linear or branched (C1-C6)alkyl group, or -alkyl(C0-C6)-Cy1,
    • or (R8, R8′) form together with the nitrogen atom carrying them an aromatic or non-aromatic ring composed of from 5 to 7 ring members, which may contain in addition to the nitrogen atom from one to 3 heteroatoms selected from oxygen, sulphur and nitrogen, it being understood that the nitrogen in question may be substituted by a group representing a hydrogen atom, a linear or branched (C1-C6)alkyl group,
    • R9 represents -Cy1, -Cy1-alkyl(C0-C6)-Cy2, -Cy1-alkyl(C0-C6)—O-alkyl(C0-C6)-Cy2, -Cy1-alkyl(C0-C6)—NR8-alkyl(C0-C6)-Cy2, —C(O)—NR8R8′, —NR8R8′, —NR8—C(O)R8′, —OR8, O-alkyl(C1-C6)—OR8, —SO2—R8, —C(O)—OR8, —NH—C(O)—NH—R8,
    • R10, R10′, R11 and R11′ independently of one another represent a hydrogen atom or an optionally substituted linear or branched (C1-C6)alkyl group,
    • R12 represents a hydrogen or a hydroxy group,
    • Cy1, Cy2, Cy3 and Cy4, independently of one another, represent a cycloalkyl group, a heterocycloalkyl group, an aryl or an heteroaryl group,
      it being understood that:
    • “aryl” means a phenyl, naphthyl, biphenyl or indenyl group,
    • “heteroaryl” means any mono- or bi-cyclic group composed of from 5 to 10 ring members, having at least one aromatic moiety and containing from 1 to 3 heteroatoms selected from oxygen, sulphur and nitrogen,
    • “cycloalkyl” means any mono- or bi-cyclic non-aromatic carbocyclic group containing from 3 to 10 ring members,
    • “heterocycloalkyl” means any mono- or bi-cyclic non-aromatic carbocyclic group containing from 3 to 10 ring members, and containing from 1 to 3 heteroatoms selected from oxygen, sulphur and nitrogen, which may include fused, bridged or spiro ring systems,
      it being possible for the aryl, heteroaryl, cycloalkyl and heterocycloalkyl groups so defined and the alkyl, alkenyl, alkynyl, alkoxy, to be substituted by from 1 to 4 groups selected from optionally substituted linear or branched (C1-C6)alkyl, optionally substituted linear or branched (C2-C6)alkenyl group, optionally substituted linear or branched (C2-C6)alkynyl group, optionally substituted linear or branched (C1-C6)alkoxy, optionally substituted (C1-C6)alkyl-S—, hydroxy, oxo (or N-oxide where appropriate), nitro, cyano, —C(O)—OR′, —O—C(O)—R′, —C(O)—NR′R″, —NR′ R″, —(C═NR′)—OR″, linear or branched (C1-C6)polyhaloalkyl, trifluoromethoxy, or halogen, it being understood that R′ and R″ independently of one another represent a hydrogen atom or an optionally substituted linear or branched (C1-C6)alkyl group,
      their enantiomers, diastereoisomers and atropoisomers, and addition salts thereof with a pharmaceutically acceptable acid or base.

Among the pharmaceutically acceptable acids there may be mentioned, without implying any limitation, hydrochloric acid, hydrobromic acid, sulphuric acid, phosphonic acid, acetic acid, trifluoroacetic acid, lactic acid, pyruvic acid, malonic acid, succinic acid, glutaric acid, fumaric acid, tartaric acid, maleic acid, citric acid, ascorbic acid, oxalic acid, methanesulphonic acid, camphoric acid etc.

Among the pharmaceutically acceptable bases there may be mentioned, without implying any limitation, sodium hydroxide, potassium hydroxide, triethylamine, tert-butylamine etc.

Advantageously, at least one of the groups selected from R1, R2 and R3 does not represent a hydrogen atom.

More especially, compounds of formula (I) to which preference is given are compounds wherein n is an integer equal to 1.

In another embodiment of the invention, an advantageous possibility consists of compounds of formula (I-b):

wherein A, R1, R2, R3, R4, R5, R6, R7, R12 and X are as defined for formula (I).

In the preferred compounds of the invention, A represents a linear or branched (C1-C6)alkyl group or a halogen atom. More preferably, A represents a methyl group, an ethyl group, a bromine atom or a chlorine atom.

Atropisomers are stereoisomers arising because of hindered rotation about a single bond, where energy differences due to steric strain or other contributors create a barrier to rotation that is high enough to allow for isolation of individual conformers. For compounds according to the invention, atropisomers are as follows:

Preferred atropisomer is (5Sa) when X represents a carbon atom. Preferred atropisomer is (5Ra) when X represents a nitrogen atom.

Preferably, X represents a carbon atom.

Advantageously, R12 represents a hydrogen atom.

In some preferred embodiment of the invention,

represents

wherein A, R8 and R8′ are as defined for formula (I).

In the preferred compounds of the invention,

represents

wherein R8 and R8′ are as defined for formula (I).

In another embodiment of the invention, R4 represents an optionally substituted linear or branched (C1-C6)alkoxy group or a —O-alkyl(C1-C6)—R9 group. Advantageously, R4 represents a 2,2,2-trifluoroethoxy group, a methoxy group, a 2-methoxyethoxy group or a —O-alkyl(C1-C6)—R9 group.

R5 preferably represents a hydrogen atom.

In the preferred compounds of the invention,

represents

wherein R9 is as defined for formula (I).

In another embodiment of the invention, an advantageous possibility consists of compounds of formula (I-c):

wherein R4, R6, R7, R8, R8′, R12 and A are as defined for formula (I).

Preferably, R6 represents a hydrogen, an optionally substituted linear or branched (C1-C8)alkyl group, or an heteroarylalkyl(C1-C6) group. Preferred R6 groups are as follows: hydrogen; methyl; ethyl; 2-methoxyethyl; 2,2,2-trifluoroethyl; tert-butylcarbonyloxymethyl; (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl; 2-(dimethylamino)-2-oxoethyl; 2-(2-methoxyethoxy)ethyl. Even more preferably, R6 represents hydrogen.

In the preferred compounds of the invention, R7 represents a linear or branched (C1-C6)alkyl group, a linear or branched (C2-C6)alkenyl group, a linear or branched (C2-C6)alkynyl group, an aryl or an heteroaryl group. Advantageously, R7 represents a linear or branched (C2-C6)alkynyl group, an aryl or an heteroaryl group. More preferably, R7 represents a prop-1-yn-1-yl group, a but-1-yn-1-yl group, a phenyl group or a furan-2-yl group. In a more preferred embodiment, R7 represents a 4-(benzyloxy)phenyl group, a 4-(pyridin-4-ylmethoxy)phenyl group, a 4-phenylbut-1-yn-1-yl group, a 4-fluorophenyl group or a 5-fluorofuran-2-yl group. Even more preferentially, R7 represents a 4-fluorophenyl group.

In the preferred compounds of the invention, R8 and R8′ independently of one another represent a linear or branched (C1-C6)alkyl group, or (R8, R8′) form together with the nitrogen atom carrying them a non-aromatic ring composed of from 5 to 7 ring members, which may contain in addition to the nitrogen atom from one to 3 heteroatoms selected from oxygen, sulphur and nitrogen, it being understood that the nitrogen in question may be substituted by a group representing a hydrogen atom, a linear or branched (C1-C6)alkyl group. More preferably, R8 and R8′ represent a methyl group, or (R8, R8′) form together a 4-methyl-piperazinyl group or a 4-ethyl-piperazinyl group. In a more preferred embodiment, (R8, R8′) form together a 4-methyl-piperazinyl group. In another preferred embodiment, R8 and R8′ represent a methyl group.

Advantageously, R9 represents -Cy1, -Cy1-alkyl(C0-C6)—O-alkyl(C0-C6)-Cy2 or -Cy1-alkyl(C0-C6)-Cy2. More particularly, R9 represents -Cy1, -Cy1-O—CH2—Cy2, or -Cy1-Cy2.

Cy1 preferably represents a heteroaryl group, particularly, a pyrimidinyl group, a pyrazolyl group, a triazolyl group, a pyrazinyl group or a pyridinyl group. More preferably, Cy1 represents a pyrimidin-4-yl group, a pyrazol-5-yl group, a triazol-5-yl group, a pyrazin-2-yl group or a pyridin-4-yl group. In the preferred compounds of the invention, Cy1 represents a pyrimidin-4-yl group.

In another embodiment of the invention, Cy1 represents a heteroaryl group which is substituted by an optionally substituted linear or branched (C1-C6)alkyl group, an optionally substituted linear or branched (C1-C6)alkoxy group, a —NR′R″ group, or a linear or branched (C1-C6)polyhaloalkyl group, it being understood that R′ and R″ independently of one another represent a hydrogen atom or an optionally substituted linear or branched (C1-C6)alkyl group.

Cy2 preferably represents a phenyl group, a pyridinyl group, a pyrazolyl group, a morpholinyl group, a furanyl group or a cyclopropyl group. More preferably, Cy2 represents a phenyl group, a pyridin-2-yl group, a pyridin-3-yl group, a pyridin-4-yl group, a pyrazol-1-yl group, a morpholin-4-yl group, a furan-2-yl group or a cyclopropyl group. In the preferred compounds of the invention, Cy2 represents a phenyl group.

Other compounds of the invention to which preference is given are those wherein R9 represents -Cy1-Cy2 in which Cy1 represents a pyrimidinyl group and Cy2 represents a phenyl group, a pyridinyl group, a pyrazolyl group, a morpholinyl group, a furanyl group, or a cyclopropyl group. Even more preferentially,

    • R9 represents

in which R13 and R14 independently of one another represent a hydrogen, an optionally substituted linear or branched (C1-C6)alkyl, optionally substituted linear or branched (C1-C6)alkoxy, hydroxy, linear or branched (C1-C6)polyhaloalkyl, or halogen atom. Preferred R13 and R14 groups are as follows: hydrogen; methyl; ethyl; methoxy; ethoxy; isopropoxy; methoxyethoxy; fluoro; hydroxy; trifluoromethyl. Advantageously, R14 represents hydrogen and R13 is located at ortho position of the phenyl group.

Among the preferred compounds of the invention there may be mentioned:

  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(2-methoxyethoxy)phenyl]propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(2,2,2-trifluoro ethoxy)phenyl]propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrazin-2-ylmethoxy) phenyl]propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-methyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin- 4-yl]oxy}-3-(2-{[1-(propan-2-yl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(propan-2-yl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(trifluoromethyl) pyridin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin- 4-yl]oxy}-3-{2-[(2-ethoxypyrimidin-4-yl)methoxy]phenyl}propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin- 4-yl]oxy}-3-(2-{[2-(propan-2-yloxy) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(pyridin-2-yl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxyethyl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(cyclopropylmethoxy) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl) thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic acid,
  • (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic acid,
  • (2R)-3-{2-[(1-tert-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl) thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic acid,
  • ethyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(propan-2-yl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoate,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-cyclopropyl pyrimidin-4-yl)methoxy]phenyl}propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin- 4-yl]oxy}-3-(2-{[2-(furan-2-yl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin- 4-yl]oxy}-3-{2-[(2-propylpyrimidin-4-yl)methoxy]phenyl}propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(2,2,2-trifluoroethyl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(2,2,2-trifluoro ethyl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(thiophen-2-yl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin- 4-yl]oxy}-3-(2-{[2-(morpholin-4-yl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(pyridin-4-yl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-ethoxypyrimidin-4-yl)methoxy]phenyl}propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxyethoxy) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxyethyl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin- 4-yl]oxy}-3-(2-{[2-(1H-pyrazol-1-yl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-methoxypyridin-4-yl)methoxy]phenyl}propanoic acid,
  • (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methylpyridin-4-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxyphenyl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-3-{2-[(1-butyl-1H-1,2,3-triazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl) thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(4-methylpyridin-3-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(morpholin-4-yl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2,2,2-trifluoro ethoxy)pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-({2-[(2-methoxyethyl) amino]pyrimidin-4-yl}methoxy)phenyl]propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methylphenyl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(2,2,2-trifluoroethyl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(morpholin-4-yl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(morpholin-4-yl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-ethoxyphenyl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(3-methylpyridin-4-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(3,3,3-trifluoro propoxy)pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(3-methylpyridin-4-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(methoxymethyl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(3-methylpyridin-4-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(4-methylpyridin-3-yl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxyphenyl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2,2,2-trifluoro ethoxy)pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • ethyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2,2,2-trifluoroethoxy)pyrimidin-4-yl]methoxy}phenyl)propanoate,
  • ethyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxy phenyl)pyrimidin-4-yl]methoxy}phenyl)propanoate,
  • 2,2,2-trifluoroethyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy}phenyl)propanoate,
  • propan-2-yl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl) ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy}phenyl)propanoate,
  • 2-methoxyethyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl) ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy}phenyl)propanoate,
  • ethyl (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxyphenyl) pyrimidin-4-yl]methoxy}phenyl)propanoate,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin- 4-yl]oxy}-3-(2-{[2-(pyridin-3-yl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin- 4-yl]oxy}-3-(2-{[2-(ethoxymethyl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-3-{2-[(1-tert-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl) thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-fluorophenyl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-methoxy pyrimidin-4-yl)methoxy]phenyl}propanoic acid,
  • (2R)-3-{2-[(1-tert-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl) thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-hydroxyphenyl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-({2-[2-(propan-2-yloxy) phenyl]pyrimidin-4-yl}methoxy)phenyl]propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-({2-[2-(2-methoxy ethoxy)phenyl]pyrimidin-4-yl}methoxy)phenyl]propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-ethylphenyl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-({2-[4-methoxy-2-(trifluoromethyl)phenyl]pyrimidin-4-yl}methoxy)phenyl]propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2,5-dimethyl pyridin-4-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(5-methoxy-2-methylpyridin-4-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-ethyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxyphenyl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{2-bromo-3-chloro-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxyphenyl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{2,3-dichloro-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxyphenyl) pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-3-{2-[(1-tert-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-fluorophenyl)pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-[(6-[4-(benzyloxy)phenyl]-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methyl piperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl)oxy]-3-(2-{[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-[4-(pyridin-4-ylmethoxy)phenyl]thieno[2,3-d]pyrimidin-4-yl)oxy]-3-(2-{[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-phenylbut-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxy phenyl)pyrimidin-4-yl]methoxy}phenyl)propanoic acid,
  • methyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxy phenyl)pyrimidin-4-yl]methoxy}phenyl)propanoate,
  • ethyl (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(4-ethylpiperazin-1-yl)ethoxy]-2-methyl phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-fluoro phenyl)pyrimidin-4-yl]methoxy}phenyl)propanoate,
  • ethyl (2R)-3-{2-[(1-tert-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[5(5Sa)-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(4-fluorophenyl) thieno[2,3-d]pyrimidin-4-yl]oxy}propanoate,
  • {[(2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxy phenyl)pyrimidin-4-yl]methoxy}phenyl)propanoyl]oxy}methyl 2,2-dimethylpropanoate,
  • (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy}phenyl) propanoate,
  • 2-(dimethylamino)-2-oxoethyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methyl piperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy}phenyl)propanoate,
  • 2-(2-methoxyethoxy)ethyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methyl piperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy}phenyl)propanoate.

The invention relates also to a process for the preparation of compounds of formula (I), which process is characterised in that there is used as starting material the compound of formula (II-a):

wherein R7 is as defined for formula (I),
which compound of formula (II-a) is subjected to coupling with a compound of formula (III):

wherein R4, R5, R12 and n are as defined for formula (I), and Alk represents a linear or branched (C1-C6)alkyl group,
to yield the compound of formula (IV):

wherein R4, R5, R7, R12 and n are as defined for formula (I) and Alk is as defined before,
compound of formula (IV) which is further subjected to coupling with compound of formula (V):

wherein R1, R2, R3, X and A are as defined for formula (I), and RB1 and RB2 represent a hydrogen, a linear or branched (C1-C6) alkyl group, or RB1 and RB2 form with the oxygen carrying them an optionally methylated ring,
to yield the compound of formula (VI):

wherein R1, R2, R3, R4, R5, R7, R12, X, A and n are as defined for formula (I) and Alk is as defined before,
the Alk-O—C(O)— ester function of which compound of formula (VI) is hydrolysed to yield the carboxylic acid, which may optionally be optionally be reacted with an alcohol of formula R6OH wherein R6 is as defined in formula (I),
to yield the compound of formula (I), which may be purified according to a conventional separation technique, which is converted, if desired, into its addition salts with a pharmaceutically acceptable acid or base and which is optionally separated into its isomers according to a conventional separation technique,
it being understood that at any moment considered appropriate during the course of the process described above, some groups (hydroxy, amino . . . ) of the starting reagents or of the synthesis intermediates can be protected, subsequently deprotected and functionalized, as required by the synthesis.

In an other embodiment of the invention, compounds of formula (I) may be obtained using an alternative process, which process is characterised in that there is used as starting material the compound of formula (II-b):

which compound of formula (II-b) is converted into compound of formula (II-c):

which compound of formula (II-c) is subjected to coupling with a compound of formula (V):

wherein R1, R2, R3, X and A are as defined for formula (I), and RB1 and RB2 represent a hydrogen, a linear or branched (C1-C6) alkyl group, or RB1 and RB2 form with the oxygen carrying them an optionally methylated ring,
to yield the compound of formula (VII):

wherein R1, R2, R3, A and X are as defined in formula (I),
which compound of formula (VII) is further subjected to the action of I2 in the presence of lithium diisopropylamide (strong base) to yield compound of formula (VIII):

wherein R1, R2, R3, A and X are as defined in formula (I),
which compound of formula (VIII) is further subjected to coupling with a compound of formula (IX):

wherein R7 is as defined for formula (I), and RB3 and RB4 represent a hydrogen, a linear or branched (C1-C6)alkyl group, or RB3 and RB4 form with the oxygen carrying them an optionally methylated ring,
to yield compound of formula (X):

wherein R1, R2, R3, A, X and R7 are as defined in formula (I),
which compound of formula (X) is further subjected to coupling with a compound of formula (III):

wherein R4, R5, R12 and n are as defined for formula (I), and Alk represents a linear or branched (C1-C6)alkyl group,
to yield the compound of formula (VI):

wherein R1, R2, R3, R4, R5, R7, R12, X, A and n are as defined for formula (I) and Alk is as defined before,
the ester function of which compound of formula (VI) is hydrolysed to yield the carboxylic acid, which may optionally be optionally be reacted with an alcohol of formula R6OH wherein R6 is as defined in formula (I),
to yield the compound of formula (I), which may be purified according to a conventional separation technique, which is converted, if desired, into its addition salts with a pharmaceutically acceptable acid or base and which is optionally separated into its isomers according to a conventional separation technique,
it being understood that at any moment considered appropriate during the course of the process described above, some groups (hydroxy, amino . . . ) of the starting reagents or of the synthesis intermediates can be protected, subsequently deprotected and functionalized, as required by the synthesis.

The compounds of formulae (II-a), (II-b), (III), (V), (IX) and the alcohol R6OH are either commercially available or can be obtained by the person skilled in the art using conventional chemical reactions described in the literature.

Pharmacological study of the compounds of the invention has shown that they have pro-apoptotic properties. The ability to reactivate the apoptotic process in cancerous cells is of major therapeutic interest in the treatment of cancers and of immune and auto-immune diseases.

More especially, the compounds according to the invention will be useful in the treatment of chemo- or radio-resistant cancers.

Among the cancer treatments envisaged there may be mentioned, without implying any limitation, treatment of cancers of the bladder, brain, breast and uterus, chronic lymphoid leukaemias, cancer of the colon, oesophagus and liver, lymphoblastic leukaemias, acute myeloid leukaemias, lymphomas, melanomas, malignant haemopathies, myelomas, ovarian cancer, non-small-cell lung cancer, prostate cancer, pancreatic cancer and small-cell lung cancer.

The present invention relates also to pharmaceutical compositions comprising at least one compound of formula (I) in combination with one or more pharmaceutically acceptable excipients.

Among the pharmaceutical compositions according to the invention there may be mentioned more especially those that are suitable for oral, parenteral, nasal, per- or trans-cutaneous, rectal, perlingual, ocular or respiratory administration, especially tablets or drages, sublingual tablets, sachets, paquets, capsules, glossettes, lozenges, suppositories, creams, ointments, dermal gels, and drinkable or injectable ampoules.

The dosage varies according to the sex, age and weight of the patient, the administration route, the nature of the therapeutic indication, or of any associated treatments, and ranges from 0.01 mg to 1 g per 24 hours in one or more administrations.

Furthermore, the present invention relates also to the combination of a compound of formula (I) with an anticancer agent selected from genotoxic agents, mitotic poisons, anti-metabolites, proteasome inhibitors, kinase inhibitors and antibodies, and also to pharmaceutical compositions comprising that type of combination and their use in the manufacture of medicaments for use in the treatment of cancer.

Advantageously, the present invention relates to the combination of a compound of formula (I) with an EGFR inhibitor, and also to pharmaceutical compositions comprising that type of combination.

In another embodiment, the present invention relates to the combination of a compound of formula (I) with a mTOR/PI3K inhibitor, and also to pharmaceutical compositions comprising that type of combination.

In a preferred embodiment, the present invention relates to the combination of a compound of formula (I) with a MEK inhibitor, and also to pharmaceutical compositions comprising that type of combination.

Preferably, the present invention relates to the combination of a compound of formula (I) with a HER2 inhibitor, and also to pharmaceutical compositions comprising that type of combination.

Advantageously, the present invention relates to the combination of a compound of formula (I) with a RAF inhibitor, and also to pharmaceutical compositions comprising that type of combination.

In another embodiment, the present invention relates to the combination of a compound of formula (I) with a EGFR/HER2 inhibitor, and also to pharmaceutical compositions comprising that type of combination.

In a preferred embodiment, the present invention relates to the combination of a compound of formula (I) with a taxane, and also to pharmaceutical compositions comprising that type of combination.

In another embodiment, the present invention relates to the combination of a compound of formula (I) with a proteasome inhibitor, an immunomodulator or an alkylating agent, and also to pharmaceutical compositions comprising that type of combination.

The combination of a compound of formula (I) with an anticancer agent may be administered simultaneously or sequentially. The administration route is preferably the oral route, and the corresponding pharmaceutical compositions may allow the instantaneous or delayed release of the active ingredients. The compounds of the combination may moreover be administered in the form of two separate pharmaceutical compositions, each containing one of the active ingredients, or in the form of a single pharmaceutical composition, in which the active ingredients are in admixture.

The compounds of the invention may also be used in combination with radiotherapy in the treatment of cancer.

Finally, the compounds of the invention may be linked to monoclonal antibodies or fragments thereof or linked to scaffold proteins that can be related or not to monoclonal antibodies.

Antibody fragments must be understood as fragments of Fv, scFv, Fab, F(ab′)2, F(ab′), scFv-Fc type or diabodies, which generally have the same specificity of binding as the antibody from which they are descended. According to the present invention, antibody fragments of the invention can be obtained starting from antibodies by methods such as digestion by enzymes, such as pepsin or papain, and/or by cleavage of the disulfide bridges by chemical reduction. In another manner, the antibody fragments comprised in the present invention can be obtained by techniques of genetic recombination likewise well known to the person skilled in the art or else by peptide synthesis by means of, for example, automatic peptide synthesizers such as those supplied by the company Applied Biosystems, etc.

Scaffold proteins that can be related or not to monoclonal antibodies are understood to mean a protein that contains or not an immunoglobulin fold and that yields a binding capacity similar to a monoclonal antibody. The man skilled in the art knows how to select the protein scaffold. More particularly, it is known that, to be selected, such a scaffold should display several features as follow (Skerra A., J. Mol. Recogn. 2000, 13, 167-187): phylogenetically good conservation, robust architecture with a well-known three-dimensional molecular organization (such as, for example, crystallography or NMR), small size, no or only a low degree of post-translational modifications, easy to produce, express and purify. Such a protein scaffold can be, but without limitation, a structure selected from the group consisting in fibronectin and preferentially the tenth fibronectin type III domain (FNfn10), lipocalin, anticalin (Skerra A., J. Biotechnol. 2001, 74(4):257-75), the protein Z derivative from the domain B of staphylococcal protein A, thioredoxin A or any protein with a repeated domain such as an “ankyrin repeat” (Kohl et al., PNAS 2003, 100(4), 1700-1705), “armadillo repeat”, “leucine-rich repeat” or “tetratricopeptide repeat”. There could also be mentioned a scaffold derivative from toxins (such as, for example, scorpion, insect, plant or mollusc toxins) or protein inhibitors of neuronal nitric oxide synthase (PIN).

The following Preparations and Examples illustrate the invention but do not limit it in any way.

GENERAL PROCEDURES

All reagents obtained from commercial sources were used without further purification. Anhydrous solvents were obtained from commercial sources and used without further drying.

Flash chromatography was performed on ISCO CombiFlash Rf 200i with pre-packed silica-gel cartridges (RediSep®Rf Gold High Performance).

Thin layer chromatography was conducted with 5×10 cm plates coated with Merck Type 60 F254 silica-gel.

Microwave heating was performed in an Anton Parr MonoWave or CEM Discover® instrument.

Preparative HPLC purifications were performed on an Armen Spot Liquid Chromatography system with a Gemini-NX® 10 μM C18, 250 mm×50 mm i.d. column running at a flow rate of 118 mL min−1 with UV diode array detection (210-400 nm) using 25 mM aqueous NH4HCO3 solution and MeCN as eluents unless specified otherwise.

Analytical LC-MS: The compounds of the present invention were characterized by high performance liquid chromatography-mass spectroscopy (HPLC-MS) on Agilent HP1200 with Agilent 6140 quadrupole LC/MS, operating in positive or negative ion electrospray ionisation mode. Molecular weight scan range is 100 to 1350. Parallel UV detection was done at 210 nm and 254 nm. Samples were supplied as a 1 mM solution in ACN, or in THF/H2O (1:1) with 5 μL loop injection. LCMS analyses were performed on two instruments, one of which was operated with basic, and the other with acidic eluents.

Basic LCMS: Gemini-NX, 3 μm, C18, 50 mm×3.00 mm i.d. column at 23° C., at a flow rate of 1 mL min−1 using 5 mM ammonium bicarbonate (Solvent A) and acetonitrile (Solvent B) with a gradient starting from 100% Solvent A and finishing at 100% Solvent B over various/certain duration of time.

Acidic LCMS: ZORBAX Eclipse XDB-C18, 1.8 μm, 50 mm×4.6 mm i.d. column at 40° C., at a flow rate of 1 mL min−1 using 0.02% v/v aqueous formic acid (Solvent A) and 0.02% v/v formic acid in acetonitrile (Solvent B) with a gradient starting from 100% Solvent A and finishing at 100% Solvent B over various/certain duration of time.

1H-NMR measurements were performed on Bruker Avance III 500 MHz spectrometer and Bruker Avance III 400 MHz spectrometer, using DMSO-d6 or CDCl3 as solvent. 1H NMR data is in the form of delta values, given in part per million (ppm), using the residual peak of the solvent (2.50 ppm for DMSO-d6 and 7.26 ppm for CDCl3) as internal standard. Splitting patterns are designated as: s (singlet), d (doublet), t (triplet), q (quartet), quint (quintet), m (multiplet), br s (broad singlet), dd (doublet of doublets), td (triplet of doublets), dt (doublet of triplets), ddd (doublet of doublet of doublets).

Combination gas chromatography and low resolution mass spectrometry were performed on Agilent 6850 gas chromatograph and Agilent 5975C mass spectrometer using 15 m×0.25 mm column with 0.25 μm HP-5MS coating and helium as carrier gas. Ion source: EI+, 70 eV, 230° C., quadrupole: 150° C., interface: 300° C.

HRMS were determined on a Shimadzu IT-TOF, ion source temperature 200° C., ESI+/−, ionization voltage: (+−)4.5 kV. Mass resolution min. 10000.

Elementary analyses were performed on a Thermo Flash EA 1112 Elemental Analyzer.

LIST OF ABBREVIATIONS

Abbreviation Name 2-Me-THF 2-methyl-tetrahydrofurane Ac acetyl Ad adamantyl AIBN 2-[(1-cyano-1-methyl-ethyl)azo]-2-methyl-propanenitrile AtaPhos bis(di-tert-butyl(4- dimethylaminophenyl)phosphine)dichloropalladium(II) CuTC copper(I) thiophene-2-carboxylate DAST diethylamino sulfur trifluoride dba dibenzylideneacetone DCM methylene chloride Dess-Martin 1,1,1-tris(acetyloxy)-1,1-dihydro-1,2-benziodoxol-3-(1H)- periodinane one DIM diisopropylamine DIPEA diisopropylethylamine DME 1,2-dimethoxyethane DMF dimethylformamide dppf 1,1′-bis(diphenylphosphino)ferrocene eq. equivalent Et ethyl HMDS hexamethyldisilazane iPr isopropyl LDA lithium diisopropylamide Me methyl MeCN acetonitrile NBS N-bromosuccinimide nBu n-butyl NCS N-chlorosuccinimide Ph phenyl PyBOP benzotriazol-1-yloxy(tripyrrolidin-1-yl)phosphonium hexafluorophosphate rt room temperature Selectfluor 1-chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate) SPhos 2-dicyclohexylphosphino-2′,6′-dimethoxybiphenyl TBAF tetrabutyl ammonium fluoride TBAOH tetrabutyl ammonium hydroxyde tBu tert-butyl tBuXPhos 2-di(tert-butylphosphino)-2′,4′,6′-triisopropylbiphenyl TEA triethylamine TFA trifluoroacetic acid THF tetrahydrofurane TIPSCl triisopropylsilyl chloride

Preparation 1a: 5-Bromo-4-chloro-6-iodo-thieno[2,3-d]pyrimidine Step A: 6-Iodo-3H-thieno[2,3-d]pyrimidin-4-one

A 2 L round bottomed flask equipped with mechanical stirrer, thermometer and reflux condenser was charged with the solution of 433 mL acetic acid, 13 mL sulfuric acid and 87 mL water. 69.3 g 3H-thieno[2,3-d]pyrimidin-4-one (0.46 mol), 51.9 g periodic acid (0.23 mol) and 104 g iodine (0.41 mol) were added to the stirred solution heated to 60° C. for 1 h. The resulting suspension was cooled to room temperature, filtered off, washed with a mixture of acetic acid and water (5:1) and then with diethyl ether. The resulting beige crystalline solid was air dried.

1H NMR (500 MHz, DMSO-d6): 12.57 (brs, 1H), 8.09 (s, 1H), 7.65 (s, 1H).

Step B: 4-Chloro-6-iodo-thieno[2,3-d]pyrimidine

A 1 L round bottomed flask equipped with mechanical stirrer, thermometer, reflux condenser and a CaCl2-tube was charged with 113 mL phosphorous oxychloride and 35 mL N,N-dimethylaniline (0.29 mol). 75.54 g 6-iodo-3H-thieno[2,3-d]pyrimidin-4-one (0.27 mol) was added to the mixture in portions during 5 minutes. The reaction mixture was stirred at 105° C. for 1 hour. The resulting suspension was cooled to 10° C., filtered and washed with hexane. The crude product was added to ice water and stirred for 10 minutes, filtered off, washed with cold water, diethyl ether and air dried. Beige crystalline solid was obtained.

1H NMR (400 MHz, DMSO-d6): 8.89 (s, 1H), 7.98 (s, 1H).

Step C: 5-Bromo-4-chloro-6-iodo-thieno[2,3-d]pyrimidine

A 2 L round bottomed flask equipped with mechanical stirrer, thermometer and a bubbler was charged with 600 mL acetonitrile. 84.9 g 4-chloro-6-iodo-thieno[2,3-d]pyrimidine (0.29 mol), 50.9 g NBS (0.29 mol) and 8.5 mL tetrafluoroboric acid diethyl ether complex were added. The reaction mixture was stirred at room temperature for 16 hours. Further 22.9 g (0.12 mol) NBS was added to the mixture in three portions. After cooling the suspension to 0° C. and stirring for further 1 hour the precipitate was filtered off, washed with acetonitrile and air dried. The product was obtained as beige crystalline solid.

1H NMR (500 MHz, DMSO-d6): 8.88 (s, 1H).

Preparation 1b: 4-Chloro-5,6-diiodo-thieno[2,3-d]pyrimidine Step A: 5,6-Diiodo-3H-thieno[2,3-d]pyrimidin-4-one

To a well stirred slurry of 61.3 g 3H-thieno[2,3-d]pyrimidin-4-one (396 mmol), 92.4 g periodic acid (405 mmol), 1 L acetic acid, 200 mL water and 6 mL cc. sulfuric acid was added 203 g iodine (799 mmol). The reaction mixture was heated to 110° C. and stirred for 3 hours. The suspension was cooled to room temperature then 940 mL diethyl ether was added and stirred further at 10° C. for 30 minutes. The precipitate was filtered off washed with a 2:1 mixture of diethyl ether and ethanol (100 mL), finally with diethyl ether (3×250 mL) and air dried to give the product as a tan powder.

Step B: 4-Chloro-5,6-diiodo-thieno[2,3-d]pyrimidine

To a well stirred slurry of 180 g 5,6-diiodo-3H-thieno[2,3-d]pyrimidin-4-one (445 mmol) in 2.5 L phosphorous oxychloride was added 64 mL N,N-dimethylaniline. The reaction mixture was heated to 105° C. and stirred for 1.5 hours. The resulting suspension was cooled to room temperature and 1.5 L hexane was added and it was stirred further for 20 minutes. The precipitate was filtered off, washed with hexane (3×500 ml) and water (3×100 mL) then air dried to give the product as a grey crystalline solid.

1H NMR (400 MHz, DMSO-d6): 8.88 (s, 1H).

Preparation 1c: 4-Chloro-5-iodo-thieno[2,3-d]pyrimidine

52.8 g 4-chloro-5,6-diiodo-thieno[2,3-d]pyrimidine (Preparation 1b) (125 mmol) was dissolved in 400 mL abs. THF and cooled to 0° C. 100 ml tBuMgCl (200 mmol, 2 M in diethyl ether) was added over 15 minutes. 50 mL water was added then the solution was decanted and concentrated under reduced pressure. The crude product was sonicated in a mixture of acetonitrile and water (3:1) and then collected by filtration.

1H NMR (400 MHz, DMSO-d6): 8.95 (s, 1H), 8.45 (s, 1H).

Preparation 1d: 4-Chloro-6-ethyl-5-iodo-thieno[2,3-d]pyrimidine Step A: 6-Ethyl-3H-thieno[2,3-d]pyrimidin-4-one

The mixture of 701 g 2-amino-5-ethyl-thiophene-3-carboxylic acid ethyl ester (3.52 mol) and 2200 mL formamide was heated to 200° C. and the lower boiling point solvents were distilled off. After 2 hours further 250 mL formamide was added and the mixture was stirred at the same temperature for another hour then at room temperature for 16 hours. The resulting mixture was poured into 7.5 L water and the precipitate was filtered off, washed with 1.5 L toluene and 3 L water then air dried to give the product as a brown crystalline solid.

Step B: 6-Ethyl-5-iodo-3H-thieno[2,3-d]pyrimidin-4-one

The mixture of 301 g 6-ethyl-3H-thieno[2,3-d]pyrimidin-4-one, 847 g iodine, 1040 g silver sulfate and 1.7 L ethanol was stirred at room temperature for 3 days. The resulting precipitate was filtered off and washed with ethanol (3×400 ml). The product was eluted from the filter cake with the following procedure: the filter cake was stirred with 800 mL N,N-dimethylformamide at 50° C. for 1 hour then the suspension was filtered. This sequence was repeated 6 times. The combined organic layer was evaporated to dryness to give the product as a tan crystalline solid.

Step C: 4-Chloro-6-ethyl-5-iodo-thieno[2,3-d]pyrimidine

The mixture of stirred 880 ml phosphorous oxychloride and 102 mL N,N-dimethylaniline was heated to 95° C. and 220 g 6-ethyl-5-iodo-3H-thieno[2,3-d]pyrimidin-4-one (0.719 mol) was added quickly at the same temperature and then stirred for further 15 minutes. The reaction mixture was cooled to 80° C. and poured on a stirred mixture of water (1 L), crushed ice (2 kg) and DCM (700 ml). The resulting mixture was stirred for further 30 minutes while the temperature was kept below 20° C. The phases were separated, the inorganic layer was extracted with DCM (100 ml) and the organic layer was washed with water (100 ml). The combined organic layer was dried with MgSO4 and concentrated under reduced pressure to give the product as a tan crystalline solid.

1H NMR (400 MHz, DMSO-d6): 8.79 (s, 1H), 3.02 (q, 2H), 1.39 (t, 3H).

Preparation 1e: 6-Bromo-4-chloro-5-iodo-thieno[2,3-d]pyrimidine Step A: 6-Bromo-3H-thieno[2,3-d]pyrimidin-4-one

The mixture of 60.1 g 3H-thieno[2,3-d]pyrimidin-4-one (0.395 mol), 605 mL acetic acid and 24 mL bromine (0.468 mol) was stirred at room temperature for 16 hours. The reaction mixture was monitored by LCMS. Further bromine was added in three portions (12 mL, 5 mL, 10 mL) until the conversion exceeded 95%. The precipitate was filtered off, washed with acetic acid (3×50 mL), diethyl ether (3×100 mL) and then air dried to give the product as a tan powder.

Step B: 6-Bromo-5-iodo-3H-thieno[2,3-d]pyrimidin-4-one

1 L cc. sulfuric acid was cooled with ice-water bath and 72.0 g potassium iodide (0.434 mol) was added in portions during 15 minutes and then 32.4 g sodium periodate (0.151 mol) during a 10 minutes period. The resulting mixture was stirred at room temperature for 30 minutes then 80.0 g 6-bromo-3H-thieno[2,3-d]pyrimidin-4-one (0.346 mol) was added to the mixture in portions in 30 minutes while the internal temperature was kept between −21° C. and −19° C. The reaction mixture was stirred at −20° C. for 1.5 hours. Ice (3 kg) was added to the suspension then the precipitate was filtered off, washed with water (3×500 mL), finally with diethyl ether (3×200 mL) and air dried to give the product as a tan crystalline solid.

Step C: 6-Bromo-4-chloro-5-iodo-thieno[2,3-d]pyrimidine

To a well stirred slurry of 116 g 6-bromo-5-iodo-3H-thieno[2,3-d]pyrimidin-4-one (0.324 mol) in 910 mL phosphorous oxychloride 41 mL N,N-dimethylaniline was added. The stirred reaction mixture was heated to 100° C. for 1.5 hours. The resulting suspension was cooled to room temperature, hexane (1100 mL) was added and it was stirred for further 20 minutes. The precipitate was filtered off, washed with hexane (3×500 mL), water (3×100 mL) and diisopropyl ether (2×200 mL), finally air dried to give the Preparation 1e as a green shaded powder.

1H NMR (400 MHz, DMSO-d6): 8.95 (s, 1H)

Preparation 2a: 5-Bromo-4-chloro-6-(4-fluorophenyl)thieno[2,3-d]pyrimidine

75.08 g 5-bromo-4-chloro-6-iodo-thieno[2,3-d]pyrimidine (Preparation 1a) (200 mmol), 53.63 g 2-(4-fluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (240 mmol), 130 g cesium carbonate (400 mmol), 2.245 g Pd(OAc)2 (10 mmol) and 8.50 g tBuX-Phos (20 mmol) were placed in a 2 L flask. 600 mL THF and 200 mL water were added, and then stirred overnight at 70° C. under argon atmosphere. THF was evaporated, and then the product was collected by filtration. Crude product was sonicated in 250 mL acetonitrile and filtered again. Then Preparation 2a was crystallized from EtOH/THF (2:1).

1H NMR (400 MHz, DMSO-d6): 9.02 (s, 1H), 7.80-7.77 (m, 2H), 7.47-7.43 (m, 2H).

Preparation 2b: 5-Bromo-4-chloro-6-(5-fluoro-2-furyl)thieno[2,3-d]pyrimidine

112.6 g (300 mmol) 5-bromo-4-chloro-6-iodo-thieno[2,3-d]pyrimidine (Preparation 1a), 254.4 g (1200 mmol) 2-(5-fluoro-2-furyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 195.5 g (600 mmol) cesium carbonate, 3.36 g (15 mmol) Pd(OAc)2, 12.74 g (30 mmol) tBuX-Phos were placed in a 2 L flask. 1000 mL THF and 400 mL water were added, and then stirred overnight at 70° C. under argon atmosphere. THF was evaporated, and then the product was collected by filtration. Crude product was dissolved in THF, and then celite was added and the volatiles were evaporated under reduced pressure. The solid residue was purified by flash chromatography on silica gel using heptane/EtOAc as eluents.

1H NMR (400 MHz, DMSO-d6): 8.95 (s, 1H), 7.55 (t, 1H), 6.23 (dd, 1H).

Preparation 2c: 5-Bromo-4-chloro-6-(2-furyl)thieno[2,3-d]pyrimidine

112.6 g 5-bromo-4-chloro-6-iodo-thieno[2,3-d]pyrimidine (Preparation 1a) (300 mmol), 93.14 g 2-(2-furyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (480 mmol), 215.0 g cesium carbonate (660 mmol), 3.367 g Pd(OAc)2 (15 mmol) and 12.74 g tBuX-Phos (20 mmol) were placed in a 2 L flask. 1000 mL THF and 300 mL water were added, and then stirred for 7 hours at 70° C. under argon atmosphere. THF was evaporated, and then the product was collected by filtration. Crude product was sonicated in 250 mL acetonitrile and filtered again. Then Preparation 2c was crystallized from EtOH/THF (2:1).

1H NMR (400 MHz, DMSO-d6): 8.96 (s, 1H), 8.05 (dd, 1H), 7.59 (dd, 1H), 6.86 (dd, 1H).

Preparation 2d: 5-Bromo-4-chloro-6-(5-chloro-2-furyl)thieno[2,3-d]pyrimidine

33.29 g 5-bromo-4-chloro-6-(2-furyl)thieno[2,3-d]pyrimidine (Preparation 2c) (105.7 mmol) and 16.90 g NCS (126.6 mmol) were placed in a 1 L flask. 400 mL THF and 20 mL TFA were added, and the stirred for 2 hours at room temperature. Reaction mixture was washed with saturated NaHCO3. The organic phase was dried over MgSO4, filtered and concentrated to give Preparation 2d.

1H NMR (400 MHz, CDCl3): 8.84 (s, 1H), 7.52 (d, 1H), 6.45 (d, 1H).

Preparation 2e: 5-Bromo-4-chloro-6-(4-fluoro-3-methoxy-phenyl)thieno[2,3-d]pyrimidine

15.01 g 5-bromo-4-chloro-6-iodo-thieno[2,3-d]pyrimidine (Preparation 1a) (40 mmol), 12.10 g 2-(4-fluoro-3-methoxy-phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (44 mmol), 32.58 g cesium carbonate (100 mmol), 1.463 g Pd(dppf)Cl2 (2 mmol) were placed in an 1 L flask. 150 mL THF and 150 mL water were added, and then stirred overnight at 70° C. under argon atmosphere. To the reaction mixture brine was added and the pH was set to 6 with 2 M HCl, and then extracted with DCM. The volatiles from the organic phase were evaporated under reduced pressure and the crude product was purified by flash chromatography on silica gel using heptane/DCM as eluents.

1H NMR (400 MHz, DMSO-d6): 8.94 (s, 1H), 7.42 (dd, 1H), 7.36 (dd, 1H), 7.24-7.20 (m, 1H), 3.90 (s, 3H).

Preparation 2f: 4-Chloro-5-iodo-6-(prop-1-ynyl)-thieno[2,3-d]pyrimidine

42.24 g 4-chloro-5,6-diiodo-thieno[2,3-d]pyrimidine (Preparation 1b) (100 mmol), 3.509 g Pd(PPh3)2C1 (5 mmol) and 1.904 g CuI (10 mmol) were dissolved in 400 mL DIPA, then propyne was bubbled through the reaction mixture, which was stirred for 6 hours at room temperature. After full conversion the volatiles were evaporated under reduced pressure and the crude product was purified by flash chromatography on silica gel using heptane/EtOAc as eluents.

1H NMR (400 MHz, DMSO-d6): 8.92 (s, 1H), 2.25 (s, 3H).

Preparation 2g: 5-Bromo-4-chloro-6-(3,4-difluorophenyl)thieno[2,3-d]pyrimidine

9.39 g 5-bromo-4-chloro-6-iodo-thieno[2,3-d]pyrimidine (Preparation 1a) (25 mmol), 9.00 g 2-(3,4-difluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (37.5 mmol), 16.29 g cesium carbonate (50 mmol), 912 mg Pd(dppf)Cl2 (1.25 mmol) were placed in a 250 mL flask. 100 mL THF and 50 mL water were added, and then stirred for 2 hours at 70° C. under argon atmosphere. THF was evaporated, and then it was extracted with EtOAc. The organic layer was dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using DCM and MeOH as eluents.

1H NMR (400 MHz, DMSO-d6): 9.06 (s, 1H), 7.91 (m, 1H), 7.71 (m, 1H), 7.60 (m, 1H).

Preparation 2h: 5-Bromo-4-chloro-6-(2,3-difluorophenyl)thieno[2,3-d]pyrimidine

9.39 g 5-bromo-4-chloro-6-iodo-thieno[2,3-d]pyrimidine (Preparation 1a) (25 mmol), 9.00 g 2-(2,3-difluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (37.5 mmol), 16.29 g cesium carbonate (50 mmol), 912 mg Pd(dppf)Cl2 (1.25 mmol) were placed in a 250 mL flask. 100 mL THF and 50 mL water were added, and then stirred for 2 hours at 70° C. under argon atmosphere. THF was evaporated, and then it was extracted with EtOAc. The organic layer was dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using DCM and MeOH as eluents to obtain Preparation 2h.

HRMS calculated for C12H4BrClF2N2S: 359.8935, found: 360.9013 (M+H).

Preparation 2i: 5-Bromo-4-chloro-6-[4-(methoxymethoxy)phenyl]thieno[2,3-d]pyrimidine

15.904 g (42.4 mmol) 5-bromo-4-chloro-6-iodo-thieno[2,3-d]pyrimidine (Preparation 1a), 16.784 g (63.5 mmol) 2-(4-methoxymethoxy-phenyl)-4,4,5,5-tetramethyl-[1,3,2]dioxaborolane, 1.798 g (4.2 mmol) tBuXPhos, 473 mg (2.1 mmol) Pd(OAc)2 and 41.365 g (127 mmol) Cs2CO3 were dissolved in 200 mL THF and 200 mL H2O. The mixture was stirred at 70° C. under N2 until no further conversion was observed. It was diluted with brine, the pH was set to 7 with 2 M HCl, and then it was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 2i.

MS: (M+H)=385.0, 387.0.

Unless otherwise specified, most of the compounds of Preparation 3aa to 3br were obtained using General Procedures 3A, 3B or 3C described below.

General Procedure 3A Step A

1.0 eq. ethyl (2R)-2-acetoxy-3-(2-hydroxyphenyl)propanoate (Preparation 3aa-(R)), 2.0 eq. of the appropriate alcohol and 2.0 eq. triphenylphosphine were dissolved in dry toluene (0.2 M for the phenol), then 2.0 eq. di-tert-butyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen. After reaching an appropriate conversion the volatiles were removed under reduced pressure, the crude intermediate was purified via flash chromatography using heptane/EtOAc as eluents.

Step B

The obtained intermediate was dissolved in ethanol (0.5 M for the Step A product) then sodium ethoxide solution (1.0 M in ethanol) was added (2-5 mol %). The resulting mixture was stirred at room temperature. Additional sodium ethoxide solution was added if conversion was not complete. The mixture was concentrated to half of its volume, then water and brine was added, and it was extracted with ethyl acetate. The combined organics were dried over Na2SO4, filtered and evaporated under reduced pressure then it was purified via flash chromatography using heptane/EtOAc as eluents or other solvents, if indicated.

General Procedure 3B: (Tetrahedron Lett. 1994, 35, 5205-5208.) Step A

To a stirred mixture of 1.0 eq. of the appropriate carbaldehyde and 1.25 eq. ethyl chloroacetate in THF (1.0 M for the carbaldehyde) at −78° C. 1.25 eq. sodium bis(trimethylsilyl-amide) solution (1.0 M in THF) was added dropwise. After addition temperature was allowed to reach room temperature. When the reaction reached an appropriate conversion to the oxirane the mixture was quenched with saturated NH4Cl, the layers were separated, the aqueous layer was extracted with Et2O, the combined organics were dried over Na2SO4 filtered and concentrated.

Step B

The crude oxirane was dissolved in THF or EtOAc (1.0 M) and transferred to a hydrogenating vessel, 5 mol % of Pd(OH)2 was added and the mixture was hydrogenated at 3-4.5 bars of hydrogen pressure. In case of a low conversion glacial acetic acid and Pd(OH)2 were added to the mixture and hydrogenation was continued. When the appropriate reduction occurred, the mixture was filtered through a pad of celite, the filtrate was concentrated under reduced pressure and purified via flash chromatography using heptane/EtOAc as eluents (or other solvents, if indicated).

General Procedure 3C Step A

To a stirred mixture of water/tert-butanol (1:1, 0.2 M for the cinnamate derivative), 1.0 eq. methane sulfonamide, 1 g/mmol AD-mix-a and 1.0 eq. cinnamate derivative were added at room temperature. The mixture was stirred at room temperature until no further conversion was observed, and then the mixture was cooled to 0-5° C. and 2.5 eq. sodium metabisulfite was added in small portions, then stirring was continued for 30 minutes at room temperature. The mixture was diluted with water and extracted with ethyl acetate. The combined organic layers were dried over Na2SO4, filtered and evaporated under reduced pressure. The residue was purified via flash chromatography using DCM/methanol as eluents to obtain the appropriate dihydroxy compound.

Step B

The solution of the dihydroxy compound in dichloromethane/trifluoroacetic anhydride (4:1, 0.25 M) was stirred at room temperature for 1 hour. The mixture was concentrated under reduced pressure, and the residue was dissolved in methanol (0.25 M), 5 mol % Pd/C (10 m/m %) was added, and then it was stirred overnight at room temperature under atmospheric hydrogen pressure. The reaction mixture was filtered through a pad of celite and purified via flash chromatography using hexane/chloroform as eluents or other solvents, if indicated.

Preparation 3aa-(rac): Ethyl 2-acetoxy-3-(2-hydroxyphenyl)propanoate Step A: [2-(Bromomethyl)phenyl]acetate

60.07 g 2-methylphenyl acetate (400 mmol) and 106.8 g NBS (600 mmol) were placed in a 1 L flask. 500 mL cyclohexane was added, and then with intensive stirring 3.284 g AIBN (20 mmol) was added over 30 min. The mixture was stirred at 80° C. until no further conversion was observed, then cooled to room temperature. The precipitate was filtered off and washed with cyclohexane. The mother liquor was concentrated under reduced pressure, and the crude product was used in Step B without further purification.

Step B: Ethyl 2-acetoxy-3-(2-hydroxyphenyl)propanoate

23.10 g anhydrous LiCl (545 mmol) and 65.36 g anhydrous ZnCl2 (479.6 mmol) were placed in a 2 L flask, then dried at 160° C. under 0.1 Hgmm for 1 hour. After cooling to room temperature under argon atmosphere, 26.49 g magnesium turnings (1090 mmol) and 1 L dry pre-cooled (0° C.) THF were added. The resulting mixture was immersed into an ice-bath, and then stirred for 30 min.

100 g [2-(bromomethyl)phenyl]acetate-crude product from Step A—(˜436 mmol) was dissolved in 120 mL dry THF and was added to the precooled inorganics over 15 min.

After addition of the reagent the resulting mixture was stirred for 45 min while keeping the temperature between 0-5° C. To the mixture 64.82 mL ethyl 2-oxoacetate (654 mmol, 50% in toluene) was added over 5 mins and the resulting mixture was stirred for another 15 mins.

From the mixture the remaining inorganics were removed by filtration, and then 500 mL

MeOH was added to the filtrate. This mixture was stirred until the intramolecular acetyl group migration from the phenolic oxygen to the alkyl oxygen was completed. To the mixture 30 mL acetic acid was added then the volatiles were evaporated under reduced pressure. To the residue 350 mL water was added and it was extracted with EtOAc. The combined organic layers were washed with saturated NaHCO3 and with brine, and then dried over MgSO4, filtered and evaporated under reduced pressure. To the residue 100 mL hexane was added and it was stirred for 30 mins at 0° C. The formed white crystals were collected by filtration and washed with hexane yielding Preparation 3aa-(rac).

1H NMR (500 MHz, DMSO-d6) δ 9.53 (s, 1H), 7.06 (t, 1H), 7.04 (d, 1H), 6.79 (d, 1H), 6.71 (t, 1H), 5.10 (dd, 1H), 4.05 (q, 2H), 3.06 (dd, 1H), 2.94 (dd, 1H), 2.00 (s, 3H), 1.09 (t, 3H).

Preparation 3aa-(S): Ethyl (2S)-2-acetoxy-3-(2-hydroxyphenyl)propanoate and Preparation 3aa-(R): Ethyl (2R)-2-acetoxy-3-(2-hydroxyphenyl)propanoate

Enantiomers of Preparation 3aa-(rac) were separated via chiral chromatography. Column: OD; Eluents: heptane/EtOH; the enantiomer eluting earlier was collected as Preparation 3aa-(S) with 99.8% ee and the enantiomer eluting later was collected as Preparation 3aa-(R) with 99.9% ee.

Preparation 3ab-(R): Ethyl (2R)-2-hydroxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate Step A: Ethyl (2R)-2-acetoxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

103.3 g ethyl (2R)-2-acetoxy-3-(2-hydroxyphenyl)propanoate (Preparation 3aa-(R)) (409 mmol) was dissolved in 280 mL 3,4-dihydro-2H-pyran. 300 mg para-toluenesulfonic acid monohydrate was added and the mixture was stirred until no further conversion was observed. Then it was diluted with 1 L ethyl acetate, washed with 200 mL saturated NaHCO3 solution, then with 200 mL water. Combined organic layers were dried over Na2SO4, filtered and concentrated. Then it was purified via flash chromatography using heptane/EtOAc.

Step B: Ethyl (2R)-2-hydroxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

137.57 g ethyl (2R)-2-acetoxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (409 mmol) was dissolved in 600 mL ethanol, then 20 mL sodium ethoxide solution (1.0 M in ethanol) was added and it was stirred until no further conversion was observed. The mixture was concentrated to half of its volume, then 300 mL water and 300 mL brine was added, and it was extracted with ethyl acetate. The combined organics were dried over sodium sulfate, filtered and concentrated. The enantiopurity of the starting material was conserved.

1H NMR (500 MHz, DMSO-d6, 1:1 mixture of diastereomers) δ 7.16 (t, 1H), 7.13 (d, 1H), 7.04 (d, 1H), 6.87 (t, 1H), 5.51/5.47 (m, 1H), 4.27 (m, 1H), 4.04/4.02 (q, 2H), 3.73/3.56 (m, 2H), 3.06/3.04/2.74/2.71 (dd, 2H), 1.95/1.64 (m, 2H), 1.79 (m, 2H), 1.65/1.50 (m, 2H), 1.12/1.10 (t, 3H).

Preparation 3ab-(S): Ethyl (2S)-2-hydroxy-3-(2-tetrahydropyran-2-yloxyphenyl) propanoate Step A: Ethyl (25)-2-acetoxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

103.3 g ethyl (2S)-2-acetoxy-3-(2-hydroxyphenyl)propanoate (Preparation 3aa-(S)) (409 mmol) was dissolved in 280 mL 3,4-dihydro-2H-pyran. 300 mg para-toluenesulfonic acid monohydrate was added and the mixture was stirred until no further conversion was observed. Then it was diluted with 1 L ethyl acetate, washed with 200 mL saturated NaHCO3 solution, then with 200 mL water. Combined organic layers were dried over Na2SO4, filtered and concentrated. Then it was purified via flash chromatography using heptane/EtOAc.

Step B: Ethyl (25)-2-hydroxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

137.57 g ethyl (2S)-2-acetoxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (409 mmol) was dissolved in 600 mL ethanol, then 20 mL sodium ethoxide solution (1.0 M in ethanol) was added and it was stirred until no further conversion was observed. The mixture was concentrated to half of its volume, then 300 mL water and 300 mL brine was added, and it was extracted with ethyl acetate. The combined organics were dried over sodium sulfate, filtered and concentrated. The enantiopurity of the starting material was conserved.

HRMS calculated for C16H22O5: 294.1467, found: 317.1349 and 317.1343 (M+Na).

Preparation 3ac: Ethyl (2R)-2-hydroxy-3-[2-(pyrazin-2-ylmethoxy)phenyl]propanoate

Using General Procedure 3A and pyrazin-2-ylmethanol as the appropriate alcohol Preparation 3ac was obtained. The product was purified by column chromatography using DCM/methanol.

1H NMR (400 MHz, DMSO-d6,) δ 8.88 (s, 1H), 8.64 (dd, 2H), 7.22-7.16 (m, 2H), 7.06 (d, 1H), 6.89 (t, 1H), 5.46 (d, 1H), 5.27 (dd, 2H), 4.29 (dq, 1H), 4.00 (q, 2H), 3.09 (dd, 1H), 2.79 (dd, 1H), 1.08 (t, 3H).

Preparation 3ad: Ethyl (2R)-2-hydroxy-3-(2-methoxyphenyl)propanoate and Preparation 3bi: Ethyl (2S)-2-hydroxy-3-(2-methoxyphenyl)propanoate

Using General Procedure 3B and 2-methoxy-benzaldehyde as the appropriate carbaldehyde the lactic ester was obtained in racemic form.

1H NMR (400 MHz, CDCl3) δ 7.23 (dt, 1H), 7.12 (dd, 1H), 6.89-6.84 (m, 2H), 5.26 (dd, 1H), 4.14 (dq, 2H), 3.24 (dd, 1H), 3.03 (dd, 1H), 2.04 (s, 3H), 1.19 (t, 3H).

Enantiomers were separated via chiral chromatography; Column: AD, Eluent: 2-PrOH; the enantiomer eluting earlier was collected as Preparation 3ad with 99.8% ee and the enantiomer eluting earlier was collected as Preparation 3bi with 97.8% ee.

Preparation 3ae: Ethyl (2R)-2-hydroxy-3-[2-[(4-methoxyphenyl)methoxy]phenyl]propanoate

Using General Procedure 3A and (4-methoxyphenyl)methanol as the appropriate alcohol Preparation 3ae was obtained.

1H NMR (400 MHz, CDCl3) δ 7.38 (d, 2H), 7.21 (dt, 1H), 7.15 (dd, 1H), 6.92-6.88 (m, 4H), 5.29 (dd, 1H), 5.05 (d, 1H), 5.01 (d, 1H), 4.12 (dq, 2H), 3.31 (dd, 1H), 3.04 (dd, 1H), 2.02 (s, 3H), 1.16 (t, 3H).

Preparation 3af: Ethyl (2R)-2-hydroxy-3-[2-[[(2S)-tetrahydrofuran-2-yl]methoxy]phenyl]propanoate and Preparation 3bj: Ethyl (2R)-2-hydroxy-3-[2-[[(2R)-tetrahydrofuran-2-yl]methoxy]phenyl]propanoate

Using General Procedure 3A and tetrahydrofuran-2-ylmethanol as the appropriate alcohol diastereoisomer mixture of the lactic esters were obtained. Diastereoisomers were separated by chiral chromatography. Column: IC, Eluents: heptane/EtOH; the diastereoisomer eluting earlier was collected as Preparation 3af with 99.6% de.

1H NMR (400 MHz, CDCl3) δ 7.26-7.24 (m, 2H), 6.92 (dt, 1H), 6.87 (d, 1H), 4.46-4.41 (m, 1H), 4.35-4.29 (m, 1H), 4.20 (dq, 2H), 4.04 (dd, 1H), 3.99-3.93 (m, 2H), 3.88-3.82 (m, 1H), 3.32 (d, 1H), 3.17 (dd, 1H), 3.00 (dd, 1H), 2.14-2.05 (m, 1H), 2.03-1.90 (m, 2H), 1.85-1.76 (m, 1H), 1.25 (t, 3H).

The diastereoisomer eluting later was collected as Preparation 3bj with 99.5% de.

1H NMR (400 MHz, CDCl3) δ 7.23-7.15 (m, 2H), 6.91 (dt, 1H), 6.86 (d, 1H), 4.48-4.44 (m, 1H), 4.33-4.27 (m, 1H), 4.18 (dq, 2H), 4.06-3.97 (m, 3H), 3.87-3.82 (m, 1H), 3.35 (d, 1H), 3.18 (dd, 1H), 3.00 (dd, 1H), 2.14-2.05 (m, 1H), 2.04-1.92 (m, 2H), 1.90-1.82 (m, 1H), 1.24 (t, 3H).

Preparation 3ag: Methyl (2R)-2-hydroxy-3-phenyl-propanoate

1.66 g (2R)-2-hydroxy-3-phenyl-propanoic acid (10 mmol) was dissolved in 30 mL dry methanol and stirred at in presence of catalytic amount of concentrated sulfuric acid until no further conversion was observed. Reaction mixture was concentrated under reduced pressure, to the residue 50 mL EtOAc was added and washed with saturated NaHCO3 and with brine. Organic phase was dried over MgSO4, filtered and evaporated under reduced pressure to yield Preparation 3ag.

1H NMR (400 MHz, CDCl3) δ 7.33-7.21 (m, 5H), 4.46 (q, 1H), 3.78 (s, 3H), 3.14 (dd, 1H), 2.98 (dd, 1H), 2.77 (d, 1H).

Preparation 3ah: Ethyl (2R)-2-hydroxy-3-[2-[(2-methoxypyrimidin-4-yl)methoxy]phenyl]propanoate

Using General Procedure 3A and (2-methoxypyrimidin-4-yl)methanol as the appropriate alcohol Preparation 3ah was obtained.

1H NMR (400 MHz, CDCl3) δ 8.64 (d, 1H), 7.29 (d, 1H), 7.21-7.17 (m, 2H), 6.98 (d, 1H), 6.89 (dt, 1H), 5.52 (d, 1H), 5.17 (d, 1H), 5.13 (d, 1H), 4.34-4.30 (m, 1H), 4.04 (dq, 2H), 3.92 (s, 3H), 3.11 (dd, 1H), 2.83 (dd, 1H), 1.10 (t, 3H).

Preparation 3ai: Methyl (2R)-2-hydroxy-3-[2-(trifluoromethoxy)phenyl]propanoate

Using General Procedure 3C and methyl (2E)-3-[2-(trifluoromethoxy)phenyl]prop-2-enoate as the appropriate cinnamic acid derivative Preparation 3ai was obtained with 99.4% ee.

H NMR (400 MHz, CDCl3) δ 7.41-7.33 (m, 1H), 7.34-7.16 (m, 3H), 4.46 (ddd, 1H), 3.80 (s, 3H), 3.22 (dd, 1H), 3.03 (dd, 1H), 2.75 (d, 1H).

Preparation 3aj: Methyl (2R)-3-[2-(difluoromethoxy)phenyl]-2-hydroxy-propanoate

Using General Procedure 3C and methyl (2E)-3-[2-(difluoromethoxy)phenyl]prop-2-enoate as the appropriate cinnamic acid derivative Preparation 3aj was obtained with 99.9% ee.

1H NMR (500 MHz, CDCl3) δ 7.31 (dd, 1H), 7.29-7.24 (m, 1H), 7.21-7.15 (m, 1H), 7.11 (d, 1H), 6.53 (t, 1H), 4.46 (dd, 1H), 3.80 (s, 3H), 3.21 (dd, 1H), 3.03 (dd, 1H), 2.68 (br s, 1H).

Preparation 3ak: Methyl (2R)-3-(3-fluorophenyl)-2-hydroxy-propanoate

Using General Procedure 3C and methyl (2E)-3-(3-fluorophenyl)prop-2-enoate as the appropriate cinnamic acid derivative Preparation 3ak was obtained with 98.6% ee.

1H NMR (500 MHz, CDCl3) δ 7.27-7.24 (m, 1H), 7.00 (d, 1H), 6.97-6.92 (m, 2H), 4.46 (dd, 1H), 3.79 (s, 3H), 3.13 (dd, 1H), 2.96 (dd, 1H), 2.64 (br s, 1H).

Preparation 3al: Methyl (2R)-2-hydroxy-3-(3-methoxyphenyl)propanoate

Using General Procedure 3C and methyl (2E)-3-(3-methoxyphenyl)prop-2-enoate as the appropriate cinnamic acid derivative Preparation 3al was obtained with 97.3% ee.

1H NMR (500 MHz, CDCl3) δ 7.23 (t, 1H), 6.83-6.77 (m, 3H), 4.48 (dd, 1H), 3.81 (s, 3H), 3.80 (s, 3H), 3.12 (dd, 1H), 2.96 (dd, 1H), 2.33 (br s, 1H).

Preparation 3am: Methyl (2R)-3-(2,3-difluorophenyl)-2-hydroxy-propanoate

Using General Procedure 3C and methyl (2E)-3-(2,3-difluorophenyl)prop-2-enoate as the appropriate cinnamic acid derivative Preparation 3am was obtained with 96.9% ee.

1H NMR (500 MHz, CDCl3) δ 7.19-6.93 (m, 3H), 4.48 (dd, 1H), 3.82 (s, 3H), 3.20 (dd, 1H), 3.06 (dd, 1H), 2.73 (br s, 1H).

Preparation 3an: Methyl (2R)-2-hydroxy-3-[2-(trifluoromethyl)phenyl]propanoate

Using General Procedure 3C and methyl (2E)-3-[2-(trifluoromethyl)phenyl]prop-2-enoate as the appropriate cinnamic acid derivative Preparation 3an was obtained with 99.6% ee.

1H NMR (500 MHz, CDCl3) δ 7.67 (d, 1H), 7.53-7.47 (m, 2H), 7.37 (t, 1H), 4.43 (dd, 1H), 3.81 (s, 3H), 3.40 (dd, 1H), 3.01 (dd, 1H), 2.70 (br s, 1H).

Preparation 3ao: Methyl (2R)-2-hydroxy-3-(o-tolyl)propanoate

Using General Procedure 3C and methyl (2E)-3-(o-tolyl)prop-2-enoate as the appropriate cinnamic acid derivative Preparation 3ao was obtained with 99.3% ee.

1H NMR (500 MHz, CDCl3) δ 7.20-7.14 (m, 4H), 4.44 (dd, 1H), 3.80 (s, 3H), 3.18 (dd, 1H), 2.95 (dd, 1H), 2.59 (br s, 1H), 2.37 (s, 3H).

Preparation 3ap: Methyl (2R)-2-hydroxy-3-(m-tolyl)propanoate

Using General Procedure 3C and methyl (2E)-3-(m-tolyl)prop-2-enoate as the appropriate cinnamic acid derivative Preparation 3ap was obtained with 96.7% ee.

1H NMR (500 MHz, CDCl3) δ 7.20 (t, 1H), 7.07 (d, 1H), 7.05 (s, 1H), 7.02 (d, 1H), 4.46 (dd, 1H), 3.79 (s, 3H), 3.11 (dd, 1H), 2.94 (dd, 1H), 2.54 (br s, 1H), 2.35 (s, 3H).

Preparation 3aq: Ethyl (2R)-3-(3-fluoro-2-methoxy-phenyl)-2-hydroxy-propanoate

Using General Procedure 3C and ethyl (2E)-3-(3-fluoro-2-methoxy-phenyl)prop-2-enoate as the appropriate cinnamic acid derivative Preparation 3aq was obtained with 99.9% ee.

1H NMR (400 MHz, CDCl3) δ 7.04-6.03 (m, 3H), 4.44 (q, 1H), 4.23 (dq, 2H), 3.96 (d, 3H), 3.17 (dd, 1H), 3.02 (dd, 1H), 1.27 (t, 3H).

Preparation 3ar: Ethyl (2R)-3-(5-fluoro-2-methoxy-phenyl)-2-hydroxy-propanoate

Using General Procedure 3C and ethyl (2E)-3-(5-fluoro-2-methoxy-phenyl)prop-2-enoate as the appropriate cinnamic acid derivative Preparation 3ar was obtained with 99.9% ee.

1H NMR (400 MHz, CDCl3) δ 6.95-6.90 (m, 2H), 6.81-6.78 (m, 1H), 4.47 (q, 1H), 4.22 (dq, 2H), 3.83 (s, 3H), 3.14 (dd, 1H), 2.97 (dd, 1H), 1.28 (t, 3H).

Preparation 3as: Ethyl (2R)-3-(4-fluoro-2-methoxy-phenyl)-2-hydroxy-propanoate

Using General Procedure 3C and ethyl (2E)-3-(4-fluoro-2-methoxy-phenyl)prop-2-enoate as the appropriate cinnamic acid derivative Preparation 3as was obtained with 99.9% ee.

1H NMR (500 MHz, CDCl3) δ 7.10 (t, 1H), 6.61-6.57 (m, 2H), 4.42 (q, 1H), 4.19 (dq, 2H), 3.82 (s, 3H), 3.07 (dd, 1H), 2.96 (dd, 1H), 2.80 (d, 1H), 1.25 (t, 3H).

Preparation 3at: Ethyl (2R)-2-hydroxy-3-(2-methoxy-5-methyl-phenyl)propanoate

Using General Procedure 3C and ethyl (2E)-3-(2-methoxy-5-methyl-phenyl)prop-2-enoate as the appropriate cinnamic acid derivative Preparation 3at was obtained with 99.9% ee.

1H NMR (400 MHz, CDCl3) δ 7.04 (dd, 1H), 6.99 (d, 1H), 6.78 (d, 1H), 4.47 (dd, 1H), 4.21 (dq, 2H), 3.79 (s, 3H), 3.14 (dd, 1H), 2.98 (dd, 1H), 2.28 (s, 3H), 1.27 (t, 3H).

Preparation 3au: Ethyl (2R)-2-hydroxy-3-(2-methoxy-3-methyl-phenyl)propanoate

Using General Procedure 3C and ethyl (2E)-3-(2-methoxy-3-methyl-phenyl)prop-2-enoate as the appropriate cinnamic acid derivative Preparation 3au was obtained with 99.8% ee.

1H NMR (500 MHz, CDCl3) δ 7.10-7.03 (m, 2H), 6.97 (t, 1H), 4.45 (q, 1H), 4.21 (dq, 2H), 3.26 (s, 3H), 3.16 (dd, 1H), 3.01 (d, 1H), 2.31 (s, 3H), 1.25 (t, 3H).

Preparation 3av: Ethyl (2R)-3-[2-(tert-butoxycarbonylamino)phenyl]-2-hydroxy-propanoate

Using General Procedure 3C and ethyl (2E)-3-[2-(tert-butoxycarbonylamino)phenyl]prop-2-enoate as the appropriate cinnamic acid derivative Preparation 3av was obtained with 99.8% ee.

1H NMR (500 MHz, CDCl3) δ 7.92 (br s, 1H), 7.75 (d, 1H), 7.24 (t, 1H), 7.10 (d, 1H), 7.01 (t, 1H), 4.51 (q, 1H), 4.27 (q, 2H), 3.34 (br s, 1H), 3.25 (dd, 1H), 3.01 (dd, 1H), 1.52 (s, 9H), 1.35 (t, 3H).

Preparation 3aw: Ethyl (2R)-3-[2-[(tert-butoxycarbonylamino)methyl]phenyl]-2-hydroxy-propanoate

Using General Procedure 3C and ethyl (2E)-3-[2-[(tert-butoxycarbonylamino)methyl]phenyl]prop-2-enoate as the appropriate cinnamic acid derivative Preparation 3aw was obtained with 98.8% ee.

1H NMR (500 MHz, CDCl3) δ 7.34 (m, 1H), 5.63 (br s, 1H), 4.44-4.35 (m, 3H), 4.26 (q, 2H), 3.21 (dd, 1H), 3.10 (dd, 1H), 1.45 (s, 9H), 1.32 (t, 3H).

Preparation 3ax: Ethyl (2S)-2-hydroxy-3-[2-(2,2,2-trifluoroethylsulfanyl)phenyl]propanoate and Preparation 3ay: Ethyl (2R)-2-hydroxy-3-[2-(2,2,2-trifluoroethylsulfanyl)phenyl]propanoate Step A: 1-Methyl-2-(2,2,2-trifluoroethylsulfanyl)benzene

To a solution of 2.357 mL 2-methylbenzenethiol (20 mmol) in 30 mL dry DMF, 8.292 g potassium carbonate (40 mmol) was added. After 5 min stirring 3.168 mL 2,2,2-trifluoroethyl trifluoromethanesulfonate (28 mmol) was added over 5 mins. The resulting mixture was stirred until no further conversion was observed. Brine was added and the mixture was extracted with ethyl acetate. The combined organic layers were dried over MgSO4, filtered and evaporated under reduced pressure. The residue was purified via flash chromatography using heptane/EtOAc as eluents.

1H NMR (400 MHz, CDCl3) δ 7.48 (dd, 1H), 7.24-7.13 (m, 3H), 3.40 (q, 2H), 2.48 (s, 3H).

Step B: 1-(Bromomethyl)-2-(2,2,2-trifluoroethylsulfanyl)benzene

3.100 g 1-methyl-2-(2,2,2-trifluoroethylsulfanyl)benzene (15 mmol) and 4.005 g NBS (22.50 mmol) were placed in a 25 mL flask. 10 mL CCl4 was added, and then 49.2 mg AIBN was added over 5 mins. Mixture was stirred at 80° C. overnight, then cooled to room temperature; the precipitate was filtered off and washed with hexane. The mother liquor was concentrated, and used in the next step without further purification.

Step C: Ethyl (2R)-2-hydroxy-3-[2-(2,2,2-trifluoroethylsulfanyl)phenyl]propanoate

632 mg anhydrous LiCl (14.90 mmol) and 1.787 g anhydrous ZnCl2 (13.11 mmol) were placed in a 250 mL flask, then dried at 160° C. under 0.1 Hgmm for 1 hour. After cooling to room temperature under argon atmosphere 725 mg magnesium turnings (29.81 mmol) and 80 mL dry, pre-cooled (0° C.) THF were added. The resulting mixture was immersed into an ice-bath, and then 3.400 g 1-(bromomethyl)-2-(2,2,2-trifluoroethylsulfanyl)benzene (˜11.92 mmol, from Step B) dissolved in 20 mL dry THF and was added to the pre-cooled inorganics over 10 min. The reaction mixture was stirred for 45 min between 0-5° C. To the prepared zinc organic compound 3.546 mL ethyl 2-oxoacetate (3.652 mmol, 50% in toluene) was added over 5 min and further was stirred for 15 min. From the mixture the remained inorganics were removed by filtration, and after addition of saturated NH4Cl the mixture was extracted with ethyl acetate. The combined organic phase was dried over Mg2SO4, filtered and evaporated under reduced pressure. The residue was purified via flash chromatography using heptane/ethyl acetate as eluents giving the appropriate lactic ester in racemic form.

1H NMR (400 MHz, CDCl3) δ 7.59 (dd, 1H), 7.33-7.23 (m, 3H), 4.48-4.43 (m, 1H), 4.29-4.22 (m, 2H), 3.46-3.39 (m, 3H), 3.21 (dd, 1H), 2.78 (d, 1H), 1.29 (t, 1H).

Enantiomers were separated via chiral chromatography. Column: AS-V, Eluents: heptane/2-PrOH; the enantiomer eluting earlier was collected as Preparation 3ax with 99.6% ee and the enantiomer eluting later was collected as Preparation 3ay with 99.5% ee.

Preparation 3az: Ethyl (2S)-3-(2-fluorophenyl)-2-hydroxy-propanoate and Preparation 3ba: Ethyl (2R)-3-(2-fluorophenyl)-2-hydroxy-propanoate

Using General Procedure 3B and 2-fluorobenzaldehyde as the appropriate carbaldehyde lactic ester was obtained in racemic form.

1H NMR (400 MHz, DMSO) δ 7.34-7.22 (m, 2H), 7.16-7.07 (m, 2H), 5.60 (d, 1H), 4.23 (dd, 1H), 4.05 (q, 2H), 2.99 (dd, 1H), 2.86 (dd, 1H), 1.12 (t, 3H).

Enantiomers were separated via chiral chromatography. Column: AS-V, Eluents: heptane/2-BuOH; the enantiomer eluting earlier was collected as Preparation 3az with 99.8% ee and the enantiomer eluting later was collected as Preparation 3ba with 99.4% ee.

Preparation 3bb: Ethyl 3-(benzofuran-7-yl)-2-hydroxy-propanoate

Using General Procedure 3B and benzofuran-7-carbaldehyde as the appropriate carbaldehyde Preparation 3bb was obtained. Upon reduction the saturation of the furan moiety was also observed, thus hydrogenolysis was stopped at the point, when the desired product was present with the highest concentration in the mixture. The product was purified via flash chromatography using DCM/EtOAc as eluents.

1H NMR (500 MHz, DMSO) δ 7.98 (d, 1H), 7.51 (m, 1H), 7.16 (m, 2H), 6.94 (d, 1H), 5.63 (d, 1H), 4.40 (dd, 1H), 4.02 (q, 2H), 3.25 (dd, 1H), 3.09 (dd, 1H), 1.07 (t, 3H).

Preparation 3bc: Ethyl 3-(benzofuran-4-yl)-2-hydroxy-propanoate

Using General Procedure 3B and benzofuran-4-carbaldehyde as the appropriate carbaldehyde Preparation 3bc was obtained.

1H NMR (400 MHz, CDCl3) δ 7.62 (d, 1H), 7.41 (d, 1H), 7.23 (t, 1H), 7.10 (d, 1H), 6.85 (dd, 1H), 4.53 (dd, 1H), 4.24-4.12 (m, 2H), 3.37 (dd, 1H), 3.21 (dd, 1H), 2.80 (bs, 1H), 1.24 (t, 3H).

Preparation 3bd: Ethyl (2R)-3-(2,3-dihydrobenzofuran-7-yl)-2-hydroxy-propanoate and Preparation 3be: Ethyl (2S)-3-(2,3-dihydrobenzofuran-7-yl)-2-hydroxy-propanoate

Using General Procedure 3B and benzofuran-7-carbaldehyde as the appropriate carbaldehyde and applying longer reaction time in Step B, the partially saturated lactic ester was obtained as the main product in racemic form, which was purified via flash chromatography using DCM/EtOAc as eluents.

1H NMR (500 MHz, DMSO) δ 7.07 (m, 1H), 6.92 (m, 1H), 6.72 (t, 1H), 5.49 (d, 1H), 4.50 (m, 2H), 4.23 (m, 1H), 4.04 (q, 2H), 3.15 (t, 2H), 2.88 (dd, 1H), 2.71 (dd, 1H), 1.12 (t, 3H).

Enantiomers were separated via chiral chromatography. Column: OJ-H, Eluents: heptane/1-PrOH; the enantiomer eluting earlier was collected as Preparation 3bd with 99.6% ee and the enantiomer eluting later was collected as Preparation 3be with 92.4% ee.

Preparation 3bf: Ethyl (2R)-3-[4-fluoro-2-(methoxymethoxy)phenyl]-2-hydroxy-propanoate Step A: 4-Fluoro-2-(methoxymethoxy)benzaldehyde

To a solution of 1.242 g 4-fluoro-2-hydroxy-benzaldehyde (8.86 mmol) in 10 mL dry acetone 2.444 g K2CO3 (17.7 mmol) and 1.01 mL chloromethyl-methyl-ether (13.3 mmol) were added and stirred at room temperature until no further conversion was observed. The mixture was diluted with ethyl acetate and it was extracted with water and with brine. The organic phase was dried over Na2SO4, filtered and concentrated under reduced pressure giving 4-fluoro-2-(methoxymethoxy)benzaldehyde.

1H NMR (400 MHz, CDCl3) δ 10.39 (s, 1H), 7.87 (dd, 1H), 6.96 (dd, 1H), 6.78 (dt, 1H), 5.29 (s, 2H), 3.53 (s, 3H).

Step B: Ethyl (2R)-3-[4-fluoro-2-(methoxymethoxy)phenyl]-2-hydroxy-propanoate

Using General Procedure 3B and 4-Fluoro-2-(methoxymethoxy)benzaldehyde as the appropriate carbaldehyde the desired lactic ester was obtained in racemic form. Enantiomers were separated via chiral chromatography. Column: AS-V, Eluents: heptane/EtOH; the enantiomer eluting later was collected as Preparation 3bf with 96.6% ee.

1H NMR (500 MHz, DMSO) δ 7.16 (dd, 1H), 6.90 (dd, 1H), 6.73 (m, 1H), 5.52 (brs, 1H), 5.24 (s, 2H), 4.22 (brm, 1H), 4.03 (q, 2H), 3.40 (s, 3H), 2.94 (dd, 1H), 2.77 (dd, 1H), 1.10 (t, 3H).

Preparation 3bg: Ethyl (2R)-3-(1,3-benzodioxol-4-yl)-2-hydroxy-propanoate and Preparation 3bh: Ethyl (2S)-3-(1,3-benzodioxol-4-yl)-2-hydroxy-propanoate (Tetrahedron Lett. 1994, 35, 5205-5208.)

1,3-Benzodioxole-4-carbaldehyde was reacted according to General method B with the exception, that in Step A after the formation of the oxirane the aqueous workup was completely omitted and the solution was directly carried further to in Step B resulting the title compound in racemic form.

1H NMR (500 MHz, DMSO) δ 6.78 (dd, 1H), 6.74 (t, 1H), 6.71 (dd, 1H), 5.96 (d, 2H), 5.59 (d, 1H), 4.25 (m, 1H), 4.05 (q, 2H), 2.91 (dd, 1H), 2.76 (dd, 1H), 1.13 (t, 3H).

Enantiomers were separated via chiral chromatography. Column: AS-V, Eluents: heptane/1-BuOH; the enantiomer eluting earlier was collected as Preparation 3bg with 99.4% ee and the enantiomer eluting later was collected as Preparation 3bh with 99.8% ee.

Preparation 3bk: Ethyl (2R)-2-hydroxy-3-[2-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]propanoate and Preparation 3bo: Ethyl (2S)-2-hydroxy-3-[2-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]propanoate

Using General Procedure 3A starting from ethyl 2-acetoxy-3-(2-hydroxyphenyl)propanoate (Preparation 3aa-(rac)) and 2-(4-methylpiperazin-1-yl)ethanol as the appropriate alcohol the lactic ester was obtained in racemic form.

1H NMR (500 MHz, DMSO-d6) δ 7.17 (m, 1H), 7.10 (dm, 1H), 6.94 (dm, 1H), 6.83 (m, 1H), 5.4 (d, 1H), 4.28 (m, 1H), 4.06 (t, 2H), 4.02 (m, 2H), 2.97 (dd, 1H), 2.71 (dd, 1H), 2.69 (t, 2H), 2.49 (brs, 4H), 2.30 (brs, 4H), 2.13 (s, 3H), 1.11 (t, 3H).

Enantiomers were separated via chiral chromatography. Column: OD, Eluents: heptane/1-PrOH; the enantiomer eluting earlier was collected as Preparation 3bk with 99.8% ee and the enantiomer eluting later was collected as Preparation 3bo with 99.6% ee.

Preparation 3bl: Ethyl (2R)-2-hydroxy-3-[2-(2,2,2-trifluoroethoxy)phenyl]propanoate Step A: Ethyl (2R)-2-hydroxy-3-(2-hydroxyphenyl)propanoate

To a solution of 13.633 g ethyl (2R)-2-acetoxy-3-(2-hydroxyphenyl)propanoate (Preparation 3aa-(R)) (54 mmol) in 200 mL dry ethanol 30 mL sodium ethoxide (1.0 M) solution was added and stirred at room temperature. If needed, the addition of the sodium ethoxide solution was repeated until the cleavage of the acetyl group was complete. The mixture was diluted with 600 mL water and it was extracted with ethyl acetate. The combined organic layers were dried over Na2SO4 filtered and evaporated under reduced pressure. The obtained material was used in the next step without purification.

Step B: Ethyl (2R)-2-hydroxy-3-[2-(2,2,2-trifluoroethoxy)phenyl]propanoate

To a solution of 9.18 g ethyl (2R)-2-hydroxy-3-(2-hydroxyphenyl)propanoate (43.7 mmol) in 130 mL dry DMF, 6.040 g potassium carbonate (43.7 mmol) was added. After 5 mins stirring 7.7 mL 2,2,2-trifluoroethyl trifluoromethanesulfonate (48 mmol) was added over 5 mins. The resulting mixture was stirred until no further conversion was observed. The reaction mixture was extracted with brine/EtOAc. The combined organic layers were dried over Na2SO4, filtered and evaporated under reduced pressure. The product was purified via flash chromatography using heptane/EtOAc as eluents.

1H NMR (500 MHz, DMSO-d6) δ 7.23 (t, 1H), 7.18 (d, 1H), 7.06 (d, 1H), 6.95 (t, 1H), 5.50 (d, 1H), 4.75 (q, 2H), 4.22 (m, 1H), 4.02 (q, 2H), 3.00 (dd, 1H), 2.76 (dd, 1H), 1.09 (t, 3H).

Preparation 3bm: Ethyl (2S)-2-hydroxy-3-[2-[[(2R)-tetrahydrofuran-2-yl]methoxy]phenyl]propanoate

Using General Procedure 3A starting from ethyl (2S)-2-acetoxy-3-(2-hydroxyphenyl)propanoate (Preparation 3aa-(S)) and [(2R)-tetrahydrofuran-2-yl]methanol as the appropriate alcohol Preparation 3bm was obtained.

1H NMR (400 MHz, CDCl3) δ 7.26-7.24 (m, 2H), 6.92 (dt, 1H), 6.87 (d, 1H), 4.46-4.41 (m, 1H), 4.35-4.29 (m, 1H), 4.20 (dq, 2H), 4.04 (dd, 1H), 3.99-3.93 (m, 2H), 3.88-3.82 (m, 1H), 3.32 (d, 1H), 3.17 (dd, 1H), 3.00 (dd, 1H), 2.14-2.05 (m, 1H), 2.03-1.90 (m, 2H), 1.85-1.76 (m, 1H), 1.25 (t, 3H).

Preparation 3bn: Ethyl (2R)-2-hydroxy-3-[2-(2-pyridylmethoxy)phenyl]propanoate

Using General Procedure 3A and 2-pyridylmethanol as the appropriate alcohol Preparation 3bn was obtained.

1H NMR (500 MHz, DMSO-d6) δ 8.58 (dm, 1H), 7.85 (td, 1H), 7.59 (d, 1H), 7.35 (ddd, 1H), 7.19 (td, 1H), 7.17 (dd, 1H), 7.01 (d, 1H), 6.88 (td, 1H), 5.52 (d, 1H), 5.21 (d, 1H), 5.17 (d, 1H), 4.32 (m, 1H), 4.02 (m, 2H), 3.09 (dd, 1H), 2.83 (dd, 1H), 1.09 (t, 3H).

Preparation 3 bp: Ethyl (2R)-2-hydroxy-3-[2-[[2-(2,2,2-trifluoroethyl)pyrazol-5-yl]methoxy]phenyl]propanoate

10.1 g (40 mmol) Preparation 3aa-(R), 10.8 g (60 mmol) Preparation 9du and 15.7 g PPh3 (60 mmol) were dissolved in 120 mL dry toluene, then 13.8 g (60 mmol) ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under N2 until no further conversion was observed. Volatiles were evaporated under reduced pressure. Residue was purified via flash chromatography using EtOAc and MeOH as eluents. The obtained intermediate was dissolved in 50 mL dioxane-water 1:1 and 4.0 g LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with dichloromethane. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents. 688 mg from this intermediate was dissolved in 10 mL EtOH and 0.3 mL cc. H2SO4 was added. Mixture was stirred at 70° C. until no further conversion was observed. Then it was diluted with brine, neutralized with cc. NaHCO3 solution, extracted with dichloromethane. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 3 bp.

MS: (M+H)+=373.2.

Preparation 3bq: Ethyl (2R)-3-[2-[[2-(2-fluorophenyl)pyrimidin-4-yl]methoxy]phenyl]-2-hydroxy-propanoate

3.98 g (15.8 mmol) ethyl (2R)-2-hydroxy-3-(2-hydroxyphenyl)propanoate, 4.84 g (23.7 mmol) Preparation 9eq and 6.22 g (23.7 mmol) PPh3 were dissolved in 17 mL abs. toluene and 10.8 mL 40% (23.7 mmol) DEAD (in toluene) was added dropwise. The mixture was stirred at 50° C. under N2 until no further conversion was observed. Volatiles were evaporated under reduced pressure. Residue was purified via flash chromatography using EtOAc and MeOH as eluents. MS: (M+H)+=369.0. Then it was dissolved in 50 mL EtOH, and 4 mL cc. H2SO4 was added. The mixture was stirred at 50° C. under N2 until no further conversion was observed. Mixture was neutralized with cc. NaHCO3 solution and extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 3bq.

MS: (M+H)+=397.0.

Preparation 3br: (2R)-2-Hydroxy-3-[2-[[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy]phenyl] Propanoic Acid

37.84 g (150 mmol) ethyl (2R)-2-acetoxy-3-(2-hydroxyphenyl)propanoate (Preparation 3aa-(R)), 48.65 g (225 mmol) [2-(2-methoxyphenyl)pyrimidin-4-yl]methanol (Preparation 9bp) and 59.01 g (225 mmol) triphenyl phosphine were dissolved in 160 mL abs. toluene, then 102.47 mL (225 mmol) diethylazodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure. Then 400 mL Et2O was added, the mixture was sonicated and filtered (to remove PPh3). Et2O was removed in vacuo. Residue was dissolved in 130 mL THF, then 30 g NaOH in 130 mL H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was acidified with 2 M HCl, THF was removed in vacuo. 300 mL dichloromethane was added, and the precipitate was filtered, washed with cold H2O and DCM dried in vacuo to obtain Preparation 3br.

1H-NMR (400 MHz, DMSO-d6): 8.88 (d, 1H), 7.80 (d, 1H), 7.55 (dd, 1H), 7.49-7-44 (m, 1H), 7.26 (dd, 1H), 7.17-7.11 (m, 2H), 7.06 (t, 1H), 6.98 (d, 1H), 6.88 (t, 1H), 5.22 (s, 2H), 3.81 (dd, 1H), 3.77 (s, 3H), 3.73 (dd, 1H), 2.44 (dd, 1H).

Preparation 3bs: Ethyl (2R)-2-hydroxy-3-[2-[[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy]phenyl]propanoate

51.7 g (136 mmol) Preparation 3br was dissolved in 520 mL EtOH, then 20 mL cc.

H2SO4 was added. The mixture was stirred at 60° C. until no further conversion was observed. Then it was diluted with water, neutralized with cc NaHCO3 solution and extracted with dichloromethane. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via flash chromatography using EtOAc and MeOH as eluents to obtain Preparation 3bs.

HRMS calculated for C23H24N2O5: 408.1685, found: 409.1757 (M+H).

Preparation 4a: Ethyl (2R)-2-[5-bromo-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetra-hydropyran-2-yloxyphenyl)propanoate

48.45 g 5-bromo-4-chloro-6-(4-fluorophenyl)thieno[2,3-d]pyrimidine (Preparation 2a) (141 mmol), 45.63 g ethyl (2R)-2-hydroxy-3-(2-tetrahydropyran-2-yloxyphenyl) propanoate (Preparation 3ab-(R)) (155 mmol) and 137.8 g Cs2CO3 (423 mmol) were placed in a 2 L flask. 1.4 L tert-butanol was added and the mixture was stirred at 70° C. under N2 until no further conversion was observed. Approximately 1 L solvent was evaporated under reduced pressure, then it was diluted with water, the pH was set to 8 with 2 M HCl, and then it was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 4a as a mixture of diastereoisomers.

1H NMR (500 MHz, DMSO-d6): 8.67/8.66 (s, 1H), 7.75 (m, 2H), 7.43 (dm, 1H), 7.41 (m, 2H), 7.19 (m, 1H), 7.08/7.06 (dm, 1H), 6.89 (m, 1H), 5.87/5.70 (dd, 1H), 5.60/5.55 (m, 1H), 4.23-4.08 (m, 2H), 3.80-3.48 (m, 2H), 3.52/3.49 (dd, 1H), 3.19/3.17 (dd, 1H), 2.09-1.49 (m, 6H), 1.15/1.10 (t, 3H).

HRMS calculated for C28H26BrFN2O5S: 600.0730, found: 601.0809/601.0798 (M+H).

Preparation 4b: Ethyl (2R)-2-[5-bromo-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-(pyrazin-2-ylmethoxy)phenyl]propanoate

1.718 g 5-bromo-4-chloro-6-(4-fluorophenyl)thieno[2,3-d]pyrimidine (Preparation 2a) (5.00 mmol), 1.512 g ethyl (2R)-2-hydroxy-3-[2-(pyrazin-2-ylmethoxy)phenyl]propanoate (Preparation 3ac) (5.00 mmol) and 5.700 g Cs2CO3 (17.5 mmol) were placed in a 50 mL flask. 15 mL tert-butanol was added and the mixture was stirred at 70° C. under N2 until no further conversion was observed. The reaction mixture was diluted with water, the pH was set between 6-7 with 2 M HCl, and then it was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 4b.

MS: (M+H)+=609.0.

Preparation 4c: Ethyl (2R)-2-[5-bromo-6-(5-fluoro-2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

50.03 g 5-bromo-4-chloro-6-(5-fluoro-2-furyl)thieno[2,3-d]pyrimidine (Preparation 2b) (150 mmol), 44.15 g ethyl (2R)-2-hydroxy-3-(2-tetrahydropyran-2-yloxyphenyl) propanoate (Preparation 3ab-(R)) (150 mmol) and 146.6 g Cs2CO3 (450 mmol) were placed in a 2 L flask. 1.5 L tert-butanol was added and the mixture was stirred at 70° C. under N2 until no further conversion was observed. Approximately 1 L solvent was evaporated, then it was diluted with DCM and water, the pH was set to 8 with 2 M HCl, and then it was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 4c as a mixture of diastereoisomers.

1H NMR (500 MHz, DMSO-d6): 8.63/8.62 (s, 1H), 7.44 (dm, 1H), 7.42 (m, 1H), 7.19 (tm, 1H), 7.07 (d, 1H), 6.90 (t, 1H), 6.17 (m, 1H), 5.80/5.68 (dd, 1H), 5.61/5.55 (t, 1H), 4.14 (m, 2H), 3.78-3.40 (m, 2H), 3.51 (m, 1H), 3.18 (m, 1H), 2.00 (m, 1H), 1.82 (m, 2H), 1.68-1.37 (m, 2H), 1.66 (m, 1H), 1.14/1.11 (t, 3H).

HRMS calculated for C26H24BrFN2O6S: 590.0522, found: 591.0599 (M+H).

Preparation 4d: Ethyl (2R)-2-[5-bromo-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

36.87 g 5-bromo-4-chloro-6-(2-furyl)thieno[2,3-d]pyrimidine (Preparation 2c) (117 mmol), 37.83 g ethyl (2R)-2-hydroxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 3ab-(R)) (129 mmol) and 98.00 g Cs2CO3 (300 mmol) were placed in a 1 L flask. 400 mL tert-butanol was added and the mixture was stirred at 50° C. under N2 until no further conversion was observed. The reaction mixture was diluted with DCM and brine, and then it was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 4d as a mixture of diastereoisomers.

MS: (M+H)+=609.0.

Preparation 4e: Ethyl (2R)-2-[5-bromo-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate

0.631 g 5-bromo-4-chloro-6-(2-furyl)thieno[2,3-d]pyrimidine (Preparation 2c) (2.00 mmol), 0.673 g ethyl (2R)-2-hydroxy-3-(2-methoxyphenyl)propanoate (Preparation 3ad) (3.00 mmol) and 0.195 g Cs2CO3 (6.00 mmol) were placed in a 25 mL flask. 10 mL tert-butanol was added and the mixture was stirred at 60° C. under N2 until no further conversion was observed. The reaction mixture was diluted with DCM and brine, and then it was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 4e.

1H NMR (400 MHz, DMSO-d6): 8.60 (s, 1H), 7.94 (d, 1H), 7.43 (d, 1H), 7.37 (dd, 1H), 7.22 (td, 1H), 6.96 (d, 1H), 6.86 (td, 1H), 6.77 (dd, 1H), 5.64 (dd, 1H), 4.10 (q, 2H), 3.79 (s, 3H), 3.87 (dd, 1H), 3.24 (dd, 1H), 1.10 (t, 3H).

Preparation 4f: Ethyl (2R)-2-[5-bromo-6-(5-chloro-2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(4-methoxyphenyl)methoxy]phenyl]propanoate

6.05 g 5-bromo-4-chloro-6-(5-chloro-2-furyl)thieno[2,3-d]pyrimidine (Preparation 2d) (17.3 mmol), 6.28 g ethyl (2R)-2-hydroxy-3-[2-[(4-methoxyphenyl)methoxy]phenyl]propanoate (Preparation 3ae) (19.0 mmol) and 19.7 g Cs2CO3 (60.5 mmol) were placed in a 250 mL flask. 60 mL tert-butanol was added and the mixture was stirred at 80° C. under N2 until no further conversion was observed. Water was added, then it was extracted with EtOAc. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure to obtain Preparation 4f.

MS: (M+H)+=643.0.

Preparation 4g: Ethyl (2R)-2-[5-bromo-6-(5-chloro-2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[[(2S)-tetrahydrofuran-2-yl]methoxy]phenyl]propanoate

0.315 g 5-bromo-4-chloro-6-(5-chloro-2-furyl)thieno[2,3-d]pyrimidine (Preparation 2d) (0.90 mmol), 0.267 g ethyl (2R)-2-hydroxy-3-[2-[[(2S)-tetrahydrofuran-2-yl]methoxy]phenyl]propanoate (Preparation 3af) (0.90 mmol) and 0.977 g Cs2CO3 (3.00 mmol) were placed in a 25 mL flask. 5 mL tert-butanol was added and the mixture was stirred at 65° C. under N2 until no further conversion was observed. Water was added, the pH was set to 8 with 2 M HCl, then it was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered, concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 4g.

MS: (M+H)+=607.0.

Preparation 4h: Ethyl (2R)-2-[5-bromo-6-(4-fluoro-3-methoxy-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

24.00 g 5-bromo-4-chloro-6-(4-fluoro-3-methoxy-phenyl)thieno[2,3-d]pyrimidine (Preparation 2e) (64.0 mmol), 22.69 g ethyl (2R)-2-hydroxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 3ab-(R)) (77.0 mmol) and 62.8 g Cs2CO3 (63.0 mmol) were placed in a 250 mL flask. 150 mL tert-butanol was added and the mixture was stirred at 70° C. under N2 until no further conversion was observed Water was added, then it was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered, concentrated and purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 4h as a mixture of diastereoisomers.

MS: (M+H)+=631.0.

Preparation 4i: Methyl (2R)-2-(6-ethyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-3-phenyl-propanoate

5.00 g 4-chloro-6-ethyl-5-iodo-thieno[2,3-d]pyrimidine (Preparation 1d) (15.4 mmol), 3.47 g methyl (2R)-2-hydroxy-3-phenyl-propanoate (Preparation 3ag) (19.3 mmol) and 6.28 g Cs2CO3 (19.3 mmol) were placed in a 50 mL flask. 15 mL DMSO was added and the mixture was stirred at 60° C. under N2 until no further conversion was observed. The reaction mixture was poured onto ice, the pH was adjusted to 4 with 2M HCl and the mixture was extracted with DCM. The combined organic layers were dried over MgSO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 4i.

1H NMR (400 MHz, CDCl3): 8.48 (s, 1H), 7.42 (d, 2H), 7.30 (t, 2H), 7.23 (m, 1H), 5.75 (dd, 1H), 3.73 (s, 3H), 3.44-3.40 (m, 2H), 2.93 (q, 2H), 1.33 (t, 3H).

Preparation 4j: Ethyl (2R)-2-(6-ethyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

3.25 g 4-chloro-6-ethyl-5-iodo-thieno[2,3-d]pyrimidine (Preparation 1d) (10.0 mmol), 3.24 g ethyl (2R)-2-hydroxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 3ab-(R)) (11.0 mmol) and 9.77 g Cs2CO3 (30.0 mmol) were placed in a 100 mL flask. 50 mL tert-butanol was added and the mixture was stirred at 70° C. under N2 until no further conversion was observed. Brine was added, then it was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 4j as a mixture of diastereoisomers.

MS: (M+H)+=583.0.

Preparation 4k: Ethyl (2R)-2-(5-iodo-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl)oxy-3-(2-methoxyphenyl)propanoate

0.669 g 4-chloro-5-iodo-6-prop-1-ynyl-thieno[2,3-d]pyrimidine (Preparation 2f) (2.00 mmol), 0.673 g ethyl (2R)-2-hydroxy-3-(2-methoxyphenyl)propanoate (Preparation 3ad) (3.00 mmol) and 1.955 g Cs2CO3 (6.00 mmol) were placed in a 25 mL flask. 10 mL tert-butanol was added and the mixture was stirred at 60° C. under N2 until no further conversion was observed. The reaction mixture was diluted with brine, and then it was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 4k.

1H NMR (400 MHz, CDCl3): 8.52 (s, 1H), 7.36 (dd, 1H), 7.23 (dd, 1H), 6.89-6.84 (m, 2H), 5.78 (dd, 1H), 4.23-4.12 (m, 2H), 3.84 (s, 3H), 3.49 (dd, 1H), 3.39 (dd, 1H), 2.19 (s, 3H), 1.18 (t, 3H).

MS: (M+H)+=523.0.

Preparation 41: Ethyl (2R)-2-(5-iodo-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl)oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

8.92 g 4-chloro-5-iodo-6-prop-1-ynyl-thieno[2,3-d]pyrimidine (Preparation 2f) (26.7 mmol), 8.83 g ethyl (2R)-2-hydroxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 3ab-(R)) (30.0 mmol) and 29.3 g Cs2CO3 (90.0 mmol) were placed in a 500 mL flask. 300 mL tert-butanol was added and the mixture was stirred at 65° C. under N2 until no further conversion was observed. Brine was added, then it was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered, concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 41 as a mixture of diastereoisomers.

MS: (M+H)+=593.0

Preparation 4m: 2-(6-Ethyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-3-phenyl-propanoic Acid

500 mg (2R)-2-hydroxy-3-phenyl-propanoic acid (2.77 mmol) was dissolved in 3 mL dry DMF, then 133 mg sodium hydride (3.32 mmol, 60% in mineral oil) was added and it was stirred for 15 minutes at room temperature. It was added dropwise to a DMF solution (5 mL) of 650 mg 4-chloro-6-ethyl-5-iodo-thieno[2,3-d]pyrimidine (Preparation 1d) (2.00 mmol) and the mixture was stirred for 1 hour. Then 2.5 mL 10% NaOH solution was added and the reaction mixture was stirred for 30 minutes. It was diluted with water and washed with Et2O. The aqueous phase was acidified and the yellow precipitate was filtered and dried to obtain Preparation 4m.

1H NMR (500 MHz, DMSO-d6): 13.29 (s, 1H), 8.57 (s, 1H), 7.51 (m, 2H), 7.29 (m, 2H), 7.21 (m, 1H), 5.62 (dd, 1H), 3.36 (dd, 1H), 3.29 (dd, 1H), 2.91 (q, 2H), 1.26 (t, 3H).

HRMS calculated for C17H151 N2O3S: 453.9848, found: 454.9918 (M+H).

Preparation 4n: Ethyl (2R)-2-[5-bromo-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate

687 mg 5-bromo-4-chloro-6-(4-fluorophenyl)thieno[2,3-d]pyrimidine (Preparation 2a) (2.00 mmol), 673 mg ethyl (2R)-2-hydroxy-3-(2-methoxyphenyl)propanoate (Preparation 3ad) (3.00 mmol) and 1.955 g Cs2CO3 (6.00 mmol) were placed in a 25 mL flask. 10 mL tert-butanol was added and the mixture was stirred at 60° C. under N2 until no further conversion was observed. The reaction mixture was diluted with brine, and then it was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 4n.

MS: (M+H)+=531.0.

Preparation 4o: Ethyl (2R)-2-[5-bromo-6-(3,4-difluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

6.0 g 5-bromo-4-chloro-6-(3,4-difluorophenyl)thieno[2,3-d]pyrimidine (Preparation 2g) (16.59 mmol), 5.97 g ethyl (2R)-2-hydroxy-3-(2-tetrahydropyran-2-yloxyphenyl) propanoate (Preparation 3ab-(R)) (18.25 mmol) and 18.93 g Cs2CO3 (58.1 mmol) were placed in a 250 mL flask. 100 mL tert-butanol was added and the mixture was stirred at 60° C. under N2 until no further conversion was observed. Approximately 50 mL solvent was evaporated under reduced pressure, then it was diluted with water, the pH was set to 8 with 2 M HCl, and then it was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 4o as a mixture of diastereoisomers.

1H NMR (400 MHz, DMSO-d6): 8.69 (d, 1H), 7.87 (m, 1H), 7.67 (m, 1H), 7.57 (m, 1H), 7.44 (m, 1H), 7.20 (m, 1H), 7.07 (m, 1H), 6.90 (t, 1H), 5.82/5.70 (dd, 1H), 5.62/5.56 (t, 1H), 4.22-4.08 (m, 2H), 3.75/3.65 (td, 1H), 3.61-3.45 (m, 2H), 3.20/3.16 (d, 1H), 2.10-1.48 (m, 6H), 1.17/1.14 (t, 3H).

Preparation 4p: Ethyl (2R)-2-[5-bromo-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[[(2R)-tetrahydrofuran-2-yl]methoxy]phenyl]propanoate

4.12 g 5-bromo-4-chloro-6-(4-fluorophenyl)thieno[2,3-d]pyrimidine (Preparation 2a) (12.0 mmol) and 3.80 g ethyl (2R)-2-hydroxy-3-[2-[[(2R)-tetrahydrofuran-2-yl]methoxy]phenyl]propanoate (Preparation 3bj) (12.9 mmol) were dissolved in 30 mL tert-butanol, then 13.03 g Cs2CO3 (40.0 mmol) was added and the mixture was stirred at 65° C. under N2 until no further conversion was observed. Then it was poured onto icy water, the pH was set to 6 with 2 M HCl, and it was filtered and washed with water to obtain Preparation 4p.

1H NMR (400 MHz, DMSO-d6): 8.67 (s, 1H), 7.76 (m, 2H), 7.42 (m, 2H), 7.38 (dd, 1H), 7.21 (dt, 1H), 6.98 (d, 1H), 6.86 (t, 1H), 5.71 (dd, 1H), 4.20-4.09 (m, 3H), 4.04-3.96 (m, 2H), 3.79-3.73 (m, 1H), 3.69-3.64 (m, 1H), 3.40 (dd, 1H), 3.22 (dd, 1H), 2.04-1.78 (m, 4H), 1.12 (t, 3H).

Preparation 4q: Ethyl (2R)-2-(6-ethyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-3-(2-methoxyphenyl)propanoate

2.809 g 4-chloro-6-ethyl-5-iodo-thieno[2,3-d]pyrimidine (Preparation 1d) (8.92 mmol), 1.00 g ethyl (2R)-2-hydroxy-3-(2-methoxyphenyl)propanoate (Preparation 3ad) (4.46 mmol) and 1.598 g Cs2CO3 (4.91 mmol) were dissolved in 5 mL dry DMSO and heated at 60° C. until no further conversion was observed. Then it was diluted with water, the pH was set to 7 with 2 M HCl, and then it was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 4q.

MS: (M+H)+=513.0.

Preparation 4r: Ethyl (2S)-2-(6-ethyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-3-(2-methoxyphenyl)propanoate

2.809 g 4-chloro-6-ethyl-5-iodo-thieno[2,3-d]pyrimidine (Preparation 1d) (8.92 mmol), 1.00 g ethyl (2S)-2-hydroxy-3-(2-methoxyphenyl)propanoate (Preparation 3bi) (4.46 mmol) and 1.598 g Cs2CO3 (4.91 mmol) were dissolved in 5 mL dry DMSO and heated at 60° C. until no further conversion was observed. Then it was diluted with water, the pH was set to 7 with 2 M HCl, and then it was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 4r.

MS: (M+H)+=513.0.

Preparation 4s: Ethyl (2R)-2-[5-bromo-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-(2,2,2-trifluoroethoxy)phenyl]propanoate

5.39 g 5-bromo-4-chloro-6-(4-fluorophenyl)thieno[2,3-d]pyrimidine (Preparation 2a) (15.7 mmol) and 5.50 g ethyl (2R)-2-hydroxy-3-[2-(2,2,2-trifluoroethoxy)phenyl]propanoate (Preparation 3bl) (18.8 mmol) were dissolved in 60 mL tert-butanol, then 15.32 g Cs2CO3 (47.0 mmol) was added and the mixture was stirred at 60° C. under N2 until no further conversion was observed. Then it was poured onto icy water, the pH was set to 6 with 2 M HCl, and it was filtered, washed with water to obtain Preparation 4s.

1H NMR (400 MHz, CDCl3): 8.53 (s, 1H), 7.64 (m, 2H), 7.43 (d, 1H), 7.27-7.16 (m, 3H), 6.97 (t, 1H), 6.82 (d, 1H), 5.75 (dd, 1H), 4.45-4.38 (m, 2H), 4.22 (q, 2H), 3.55 (dd, 1H), 3.33 (dd, 1H), 1.24 (t, 3H).

Preparation 4t: Ethyl (2R)-2-[5-bromo-6-(2,3-difluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

6.00 g Preparation 2h (16.59 mmol), 5.97 g Preparation 3ab-(R) (18.25 mmol) and 18.93 g Cs2CO3 (58.1 mmol) were placed in a 250 mL flask. 100 mL tert-butanol was added and the mixture was stirred at 60° C. under N2 until no further conversion was observed. Approximately 50 mL solvent was evaporated under reduced pressure, then it was diluted with water, the pH was set to 8 with 2 M HCl, and then it was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 4t as a mixture of diastereoisomers.

HRMS calculated for C28H25BrF2N2O5S: 618.0636; found: 619.0695 (M+H).

Preparation 4u: Ethyl (2R)-2-[5-bromo-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[[2-(2-fluorophenyl)pyrimidin-4-yl]methoxy]phenyl]propanoate

1.718 g (5 mmol) Preparation 2a and 2.18 g (6 mmol) Preparation 3bq were dissolved in 50 mL dioxane then 4.887 g Cs2CO3 (15 mmol) was added. The mixture was stirred at 70° C. under N2 until no further conversion was observed. It was diluted with water, the pH was set to 7 with 2 M HCl, and then it was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 4u.

MS: (M+H)+=702.6, (M+2H)2+=351.0.

Preparation 4v: Ethyl (2R)-2-[5-bromo-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy]phenyl]propanoate

20.0 g 5-bromo-4-chloro-6-(4-fluorophenyl)thieno[2,3-d]pyrimidine (Preparation 2a) (58.2 mmol), 23.77 g ethyl (2R)-2-hydroxy-3-[2-[[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy]phenyl]propanoate (Preparation 3bs) (58.2 mmol) and 56.89 g Cs2CO3 (174.6 mmol) were placed in a flask, then 250 mL abs. THF was added and the mixture was stirred at 70° C. under N2 until no further conversion was observed. The reaction mixture was diluted with water, then it was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using dichloromethane and methanol as eluents to obtain Preparation 4v.

MS: (M+H)+=715.0, 717.2.

Preparation 4w: Ethyl (2S)-2-[5-bromo-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetra-hydropyran-2-yloxyphenyl)propanoate

48.45 g 5-bromo-4-chloro-6-(4-fluorophenyl)thieno[2,3-d]pyrimidine (Preparation 2a) (141 mmol), 45.63 g ethyl (2S)-2-hydroxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 3ab-(S)) (155 mmol) and 137.8 g Cs2CO3 (423 mmol) were placed in a 2 L flask. 1.4 L tert-butanol was added and the mixture was stirred at 70° C. under N2 until no further conversion was observed. Approximately 1 L solvent was evaporated under reduced pressure, then it was diluted with water, the pH was set to 8 with 2 M HCl, and then it was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 4w as a mixture of diastereoisomers.

MS: (M+H)=601.2.

Preparation 5a: 2-Chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) phenol Step A: (4-Bromo-2-chloro-phenoxy)-trimethyl-silane

20.8 g 4-bromo-2-chloro-phenol (100 mmol) was dissolved in 150 mL dry THF then 24.2 g HMDS (150 mmol) was added. The reaction mixture was stirred at 85° C. under argon atmosphere for 1.5 hours then concentrated under reduced pressure resulting in the product used without further purification.

1H NMR (200 MHz, CDCl3): 7.49 (d, 1H), 7.23 (dd, 1H), 6.75 (d, 1H), 0.26 (s, 9H).

Step B: 4-Bromo-2-chloro-3-methyl-phenol

48 mL nBuLi solution in hexanes (2.5 M, 120 mmol) was added dropwise to a solution of 12.1 g dry DIPA (120 mmol) in 250 mL dry THF at −78° C. under argon atmosphere. The mixture was stirred for 30 minutes at the same temperature then 28.0 g (4-bromo-2-chloro-phenoxy)-trimethyl-silane (100 mmol) was added dropwise. After 2.5 hours 21.3 g MeI (150 mmol) was added dropwise then the cooling bath was removed and the mixture was stirred overnight. The reaction was quenched with 100 mL NH4OH solution and 200 mL NH4Cl solution and extracted with EtOAc, dried over Na2SO4, filtered and concentrated under reduced pressure. The resulting dark mass was refluxed with pure hexane several times (150-150 mL aliquots) and decanted leaving a black tar behind. Combined organic phases were concentrated under reduced pressure affording 19.0 g crude product used without further purification.

1H NMR (200 MHz, CDCl3): 7.32 (d, 1H), 6.76 (d, 1H), 5.62 (s, 1H), 2.49 (s, 3H).

Step C: (4-Bromo-2-chloro-3-methyl-phenoxy)-trimethyl-silane

20.8 g HMDS (129 mmol) was added to the solution of 19.0 g 4-bromo-2-chloro-3-methyl-phenol (86.0 mmol) in 150 mL dry THF. The mixture was stirred at 85° C. under argon balloon for 1.5 hours and then concentrated under reduced pressure. The obtained product was used without further purification.

1H NMR (200 MHz, CDCl3): 7.30 (d, 1H), 6.63 (d, 1H), 2.50 (s, 3H), 0.28 (s, 9H).

Step D: 2-Chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol

A solution of 25.2 g (4-bromo-2-chloro-3-methyl-phenoxy)-trimethyl-silane (86.0 mmol) in 250 mL dry THF was cooled to −78° C. under argon and then 38 mL nBuLi in hexanes (2.5 M, 94.6 mmol) was added dropwise. After 5 minutes 19.2 g 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (103 mmol) was added dropwise. The cooling bath was removed and the mixture was slowly allowed to warm up to room temperature. Then the mixture was added to 200 mL NH4Cl solution and extracted with EtOAc. Combined organic layers were concentrated under reduced pressure and passed through a pad of silica gel using hexane and EtOAc as eluents. The crude product was recrystallized from a mixture of EtOAc and hexane to obtain Preparation 5a.

1H NMR (500 MHz, DMSO-d6): 10.40 (s, 1H), 7.42 (d, 1H), 6.80 (d, 1H), 2.49 (s, 3H), 1.27 (s, 12H).

Preparation 5b: 1-[2-[2-Chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]ethyl]-4-methyl-piperazine

10.0 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (37.2 mmol), 8.7 g 2-(4-methylpiperazin-1-yl)ethanol (60.3 mmol) and 15.8 g PPh3 (60.3 mmol) were dissolved in 100 mL dry toluene and then 27 mL diethyl azodicarboxylate (60.3 mmol, 40% solution in toluene) was added dropwise. The mixture was stirred at 50° C. under argon for 1.5 hours. The volatiles were evaporated under reduced pressure and 100 mL Et2O was added. The precipitated white crystals were filtered off and washed with Et2O. The filtrate was concentrated under reduced pressure and purified via flash chromatography using CHCl3 and MeOH as eluents. The resulting light brown oil was crystallized from hexane to give Preparation 5b as an off-white solid.

1H NMR (500 MHz, DMSO-d6): 7.56 (d, 1H), 6.99 (d, 1H), 4.15 (t, 2H), 2.72 (t, 2H), 2.51 (s, 3H), 2.50 (br s, 4H), 2.29 (br s, 4H), 2.13 (s, 3H), 1.29 (s, 12H).

Preparation 5c: [2-Chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) phenoxy]-triisopropyl-silane Step A: (4-Bromo-2-chloro-phenoxy)-triisopropyl-silane

200 g 4-bromo-2-chloro-phenol (0.97 mol) and 126 mL TIPSCl (1.18 mol) were dissolved in 1.6 L DCM. 167 g imidazole (2.45 mol) was added and the mixture was stirred at room temperature for 2 hours. The volatiles were evaporated under reduced pressure and the residue was dissolved in 1.5 L EtOAc. The mixture was washed with brine, dried over Na2SO4, filtered and concentrated under reduced pressure. The triisopropylsilyl hydroxide impurity was removed by distillation (120° C. at 0.01 mmHg). The residue was filtered through a short pad of silica with hexane and concentrated under reduced pressure. The product (colourless oil) was used in the next step without further purification.

1H NMR (400 MHz, CDCl3): 7.49 (d, 1H), 7.21 (dd, 1H), 6.78 (d, 1H), 1.31 (septet, 3H), 1.14 (d, 18H).

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 63 (30), 79 (24), 93 (41), 170 (17), 235 (19), 251 (16), 265 (24), 293 (23), 319 (77), 321 (100), 323 (28), 362 (1, [M+]).

Step B: (4-Bromo-2-chloro-3-methyl-phenoxy)-triisopropyl-silane

76.0 mL dry DIPA (0.54 mol) was dissolved in 1.2 L dry THF under argon atmosphere and 51.2 mL nBuLi solution (10 M in hexanes, 0.512 mol) was added dropwise at −78° C. The mixture was stirred for 45 minutes at the same temperature. 178 g (4-bromo-2-chloro-phenoxy)-triisopropyl-silane (0.488 mol) was added dropwise at −78° C. and the white suspension was stirred for 8 hours. 36.5 mL MeI (0.586 mmol) was added at this temperature and the reaction mixture was stirred overnight without further cooling. The volatiles were evaporated under reduced pressure. The residue was dissolved in 1.5 L EtOAc, washed with brine, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was filtered through a short pad of silica using hexane as eluent and concentrated under reduced pressure to obtain the product as pale yellow oil.

1H NMR (400 MHz, CDCl3): 7.30 (d, 1H), 6.68 (d, 1H), 2.53 (s, 3H), 1.32 (septet, 3H), 1.14 (d, 18H).

Step C: [2-Chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-triisopropyl-silane

178 g (4-bromo-2-chloro-3-methyl-phenoxy)-triisopropyl-silane (0.472 mol) was dissolved in 1.4 L dry THF under argon atmosphere and 52 mL nBuLi solution (10 M in hexanes, 0.52 mol) was added dropwise at −78° C. The mixture was stirred for 5 minutes at this temperature. Then 116 mL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (0.569 mol) was added and the mixture was allowed to warm up to room temperature. The volatiles were evaporated under reduced pressure. The residue was dissolved in 1.5 L EtOAc, washed with brine, dried over Na2SO4, filtered and concentrated under reduced pressure. The 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane impurity was removed by distillation (80° C. at 0.01 mmHg). The crude product was triturated in MeOH affording Preparation 5c as a white solid.

1H NMR (400 MHz, CDCl3): 7.53 (d, 1H), 6.74 (d, 1H), 2.60 (s, 3H), 1.34 (s, 12H), 1.32 (m, 3H), 1.12 (d, 18H).

Preparation 5d: 2-(3-Chloro-4-methoxy-2-methyl-phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

5.371 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (20.0 mmol) and 15.74 g PPh3 (60.0 mmol) were dissolved in 50 mL dry MeOH under N2, then 13.82 g ditertbutyl azodicarboxylate (60.0 mmol) was added and the mixture was stirred at 50° C. for 2 hours. Then it was concentrated under reduced pressure and purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 5d.

1H NMR (400 MHz, DMSO-d6): 7.59 (d, 1H), 6.98 (d, 1H), 3.85 (s, 3H), 2.52 (s, 3H), 1.29 (s, 12H).

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 77 (21), 82 (100), 225 (29), 267 (18), 282 (32, [M]+), 284 (11, [M]+).

Preparation 5e: [2-Chloro-3-ethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) phenoxy]-triisopropyl-silane Step A: (4-Bromo-2-chloro-3-ethyl-phenoxy)-triisopropyl-silane

7.07 g (4-bromo-2-chloro-phenoxy)-triisopropyl-silane (19.4 mmol, see Step A at Preparation 5c) was dissolved in 60 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. 11.7 mL LDA (23.3 mmol in 2 M THF, EtPh) was added and the mixture was stirred for 1 hour. Then 4.23 g ethyl iodide (38.9 mmol) was added and the mixture was allowed to warm up to room temperature. It was quenched with saturated NH4Cl solution, extracted with EtOAc, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane as eluent to obtain a mixture of product and starting material. They were separated via reversed phase chromatography using pure MeCN as eluent.

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 63 (15), 93 (65), 121 (26), 161 (15), 183 (13), 263 (10), 279 (14), 347 (71), 349 (100), 351 (28), 390 (1, [M+]), 392 (1, [M+]).

Step B: [2-Chloro-3-ethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-triisopropyl-silane

1.08 g (4-bromo-2-chloro-3-ethyl-phenoxy)-triisopropyl-silane (2.76 mmol) was dissolved in 20 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. 1.9 mL nBuLi (3.03 mmol in 1.6 M hexanes) was added and the mixture was stirred for 5 minutes, then 1.02 mL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (4.00 mmol) was added and the mixture was allowed to warm up to room temperature. It was quenched with saturated NH4Cl solution, extracted with EtOAc, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 5e.

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 55 (25), 83 (100), 93 (50), 225 (14), 295 (9), 395 (67), 397 (26).

Preparation 5f: 1-[2-[2-Chloro-3-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]ethyl]-4-methyl-piperazine Step A: 1-[2-(4-Bromo-3-fluoro-phenoxy)ethyl]-4-methyl-piperazine

1.91 g 4-bromo-3-fluoro-phenol (10.0 mmol), 1.73 g 2-(4-methylpiperazin-1-yl)ethanol (12.0 mmol) and 5.00 g immobilized PPh3 (15.0 mmol) were dissolved in 30 mL dry toluene under N2, then 2.99 g ditertbutyl azodicarboxylate (13.0 mmol) was added and the mixture was stirred at 50° C. for 6 hours. Then it was filtered, the filtrate was concentrated under reduced pressure and purified via flash chromatography using EtOAc and MeOH as eluents to obtain 1-[2-(4-bromo-3-fluoro-phenoxy)ethyl]-4-methyl-piperazine.

MS (M+H): 317.2.

Step B: 1-[2-(4-Bromo-2-chloro-3-fluoro-phenoxy)ethyl]-4-methyl-piperazine

2.35 g 1-[2-(4-bromo-3-fluoro-phenoxy)ethyl]-4-methyl-piperazine (7.41 mmol) was dissolved in 40 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. 7.2 mL LDA (14.4 mmol in 2 M THF, EtPh) was added and the mixture was stirred for 1 hour, then 2.10 g 1,1,1,2,2,2-hexachloroethane (8.89 mmol) was added and the mixture was allowed to warm up to room temperature. It was quenched with brine, extracted with DCM, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using EtOAc and MeOH as eluents to obtain 1-[2-(4-bromo-2-chloro-3-fluoro-phenoxy)ethyl]-4-methyl-piperazine.

MS (M+H): 351.0.

Step C: 1-[2-[2-Chloro-3-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]ethyl]-4-methyl-piperazine

1.94 g 1-[2-(4-bromo-2-chloro-3-fluoro-phenoxy)ethyl]-4-methyl-piperazine (5.50 mmol) was dissolved in 25 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. 4.2 mL nBuLi (6.60 mmol in 1.6 M hexanes) was added and the mixture was stirred for 5 minutes, then 2.04 mL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (10.0 mmol) was added and the mixture was allowed to warm up to room temperature. It was quenched with brine, extracted with DCM, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using EtOAc and MeOH as eluents to obtain Preparation 5f.

MS (M+H): 399.2.

Preparation 5g: 2-Fluoro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) phenol Step A: (4-Bromo-2-fluoro-phenoxy)-triisopropyl-silane

3.82 g 4-bromo-2-fluoro-phenol (20.0 mmol) was dissolved in 50 mL DCM, then 5.14 mL TIPSCl (24.0 mmol) and 2.72 g imidazole (40.0 mmol) was added and the mixture was stirred at room temperature for 1 hour. Then it was concentrated under reduced pressure and purified via flash chromatography using heptane as eluent to obtain (4-bromo-2-fluoro-phenoxy)-triisopropyl-silane.

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 63 (35), 77 (100), 105 (44), 153 (43), 182 (25), 233 (75), 235 (75), 261 (9), 263 (9), 303 (17), 305 (17), 346 (3, [M+]), 348 (3, [M+]).

Step B: (4-Bromo-2-fluoro-3-methyl-phenoxy)-triisopropyl-silane

6.50 g (4-bromo-2-fluoro-phenoxy)-triisopropyl-silane (18.7 mmol) was dissolved in 60 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. 11.2 mL LDA was added (22.5 mmol in 2 M THF, EtPh) and the mixture was stirred for 1 hour, then 2.3 mL MeI (37.4 mmol) was added and the mixture was allowed to warm up to room temperature. It was quenched with saturated NH4Cl solution, extracted with EtOAc, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane as eluent to obtain (4-bromo-2-fluoro-3-methyl-phenoxy)-triisopropyl-silane.

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 63 (21), 77 (100), 61 (105), 167 (52), 196 (43), 247 (60), 249 (59), 275 (25), 277 (25), 317 (14), 319 (14), 360 (5, [M+]), 362 (5, [M+]).

Step C: [2-Fluoro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-triisopropyl-silane

6.61 g (4-bromo-2-fluoro-3-methyl-phenoxy)-triisopropyl-silane (18.3 mmol) was dissolved in 80 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. 13.8 mL nBuLi (22.0 mmol in 1.6 M hexanes) was added and the mixture was stirred for 10 minutes, then 5.6 mL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (27.4 mmol) was added and the mixture was allowed to warm up to room temperature. It was quenched with saturated NH4Cl solution, extracted with Et2O, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain [2-fluoro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-triisopropyl-silane.

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 77 (39), 83 (100), 195 (26), 223 (20), 241 (10), 323 (4), 365 (4).

Step D: 2-Fluoro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol

6.00 g [2-fluoro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-triisopropyl-silane (14.7 mmol) was dissolved in 20 mL THF, then 16.2 mL TBAF (16.2 mmol in 1 M THF) was added and the mixture was stirred for 10 minutes. Then it was diluted with EtOAc and Et2O, washed with water and brine, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 5g.

1H NMR (400 MHz, DMSO-d6): 10.09 (s, 1H), 7.27 (dd, 1H), 6.75 (t, 1H), 2.36 (d, 3H), 1.27 (s, 12H).

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 152 (100), 166 (18), 195 (21), 237 (18), 252 (19, [M+]).

Preparation 5h: 1-Methyl-4-[2-[4-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]ethyl]piperazine Step A: 1-[2-(3-Bromo-4-methyl-phenoxy)ethyl]-4-methyl-piperazine

0.50 g 3-bromo-4-methyl-phenol (2.67 mmol), 0.46 g 2-(4-methylpiperazin-1-yl)ethanol (3.21 mmol) and 0.84 g PPh3 (3.21 mmol) was dissolved in 10 mL dry THF under N2, then 1.47 mL diethyl azodicarboxylate (3.21 mmol, 40% in toluene) was added and the mixture was stirred at room temperature for 2 hours. Then it was concentrated under reduced pressure and purified via reversed phase chromatography using aqueous 0.1% TFA solution and MeCN as eluents to obtain 1-[2-(3-bromo-4-methyl-phenoxy)ethyl]-4-methyl-piperazine.

MS (M+H): 313.1.

Step B: 1-Methyl-4-[2-[4-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]ethyl]piperazine

1.70 g 1-[2-(3-bromo-4-methyl-phenoxy)ethyl]-4-methyl-piperazine (5.43 mmol), 1.52 g 4,4,5,5-tetramethyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3,2-dioxaborolane (5.97 mmol), 395 mg PdCl2×dppf (0.54 mmol) and 1.60 g KOAc (16.3 mmol) were dissolved in 20 mL dry DMF under N2. The mixture was stirred at 85° C. for 5 hours, then it was filtered through celite, diluted with Et2O, washed with water, dried over Na2SO4, filtered and concentrated under reduced pressure. Then heptane was added, the solid impurities were filtered and the filtrate was concentrated under reduced pressure. The crude product was used as Preparation 5h without further purification.

MS (M+H): 361.2.

Preparation 5i: 2-(3-Chloro-5-fluoro-4-methoxy-2-methyl-phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane Step A: 1-Bromo-3-chloro-5-fluoro-4-methoxy-2-methyl-benzene

13.01 g 3-chloro-1-fluoro-2-methoxy-4-methyl-benzene (74.5 mmol) was dissolved in 200 mL AcOH, then 4.1 mL bromine (80.0 mmol) was added and the mixture was stirred at room temperature. Additional 6 mL bromine needed to reach complete conversion. Then the mixture was poured onto icy water, the pH was carefully set to 8 with solid KOH and K2CO3, then saturated Na2S2O3 solution was added until the brown color of bromine disappeared. Then it was extracted with Et2O. The combined organics were washed with water, then brine, then dried over Na2SO4, filtered and concentrated under reduced pressure to give 1-bromo-3-chloro-5-fluoro-4-methoxy-2-methyl-benzene.

1H NMR (400 MHz, CDCl3): 7.29 (d, 1H), 3.95 (d, 3H), 2.47 (d, 3H).

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 75 (26), 95 (42), 107 (25), 130 (96), 132 (35), 237 (57), 239 (74), 252 (77, [M+]), 254 (100, [M+]), 256 (23, [M+]).

Step B: 2-(3-Chloro-5-fluoro-4-methoxy-2-methyl-phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

761 mg 1-bromo-3-chloro-5-fluoro-4-methoxy-2-methyl-benzene (3.0 mmol) was dissolved in 15 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. 2.1 mL nBuLi (3.3 mmol in 1.6 M hexanes) was added and the mixture was stirred for 10 minutes, then 0.69 mL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (3.4 mmol) was added and the mixture was allowed to warm up to room temperature. It was quenched with saturated NH4Cl solution, extracted with DCM, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 5i.

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 200 (100), 201 (57), 243 (52), 285 (26), 300 (35, [M+]), 302 (11, [M+]).

Preparation 5j: 1-[3-Chloro-2-methoxy-4-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-4-methyl-piperazine Step A: 1-(5-Bromo-3-chloro-2-methoxy-4-methyl-phenyl)-4-methyl-piperazine

1.27 g 1-bromo-3-chloro-5-fluoro-4-methoxy-2-methyl-benzene (5.00 mmol, see Step A at Preparation 5i) was dissolved in 15 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. Separately 0.58 mL 1-methylpiperazine (5.25 mmol) was dissolved also in 15 mL dry THF under N2 and was cooled to 0° C. with icy water. Then 3.3 mL nBuLi (5.25 mmol in 1.6 M hexanes) was added and the mixture was stirred for 10 minutes, then it was cooled to −78° C. with dry ice-acetone. This latter mixture was transferred to the THF solution of 1-bromo-3-chloro-5-fluoro-4-methoxy-2-methyl-benzene and the mixture was allowed to warm up to room temperature. Water and brine were added and the mixture was extracted with DCM, dried over Na2SO4, filtered and concentrated under reduced pressure.

The crude product was purified via reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

MS (M+H): 333.0.

Step B: 1-[3-Chloro-2-methoxy-4-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-4-methyl-piperazine

334 mg 1-(5-bromo-3-chloro-2-methoxy-4-methyl-phenyl)-4-methyl-piperazine (1.00 mmol) was dissolved in 10 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. 0.66 mL nBuLi (1.05 mmol in 1.6 M hexanes) was added and the mixture was stirred for 15 minutes, then 0.25 mL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1.20 mmol) was added and the mixture was allowed to warm up to room temperature. It was quenched with brine, extracted with DCM, dried over Na2SO4, filtered and concentrated under reduced pressure and used as Preparation 5j without further purification.

MS (M+H): 381.2.

Preparation 5k: 2-Chloro-6-methoxy-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol Step A: 4-Bromo-2-methoxy-5-methyl-phenol

1.38 g 2-methoxy-5-methyl-phenol (10.0 mmol) was dissolved in 20 mL THF, then 1.87 g NBS (10.5 mmol) was added and the mixture was stirred at room temperature for 2 hours. Then it was concentrated under reduced pressure and purified via flash chromatography using heptane and EtOAc as eluents to obtain 4-bromo-2-methoxy-5-methyl-phenol.

1H NMR (400 MHz, CDCl3): 7.00 (s, 1H), 6.82 (s, 1H), 5.46 (s, 1H), 3.87 (s, 3H), 2.30 (s, 3H).

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 51 (44), 65 (40), 94 (88), 137 (22), 173 (29), 175 (30), 201 (83), 203 (78), 216 (100, [M+]), 218 (96, [M+]).

Step B: 4-Bromo-2-chloro-6-methoxy-3-methyl-phenol

1.09 g 4-bromo-2-methoxy-5-methyl-phenol (5.00 mmol) was dissolved in 20 mL THF, then 701 mg NCS (5.25 mmol) was added and the mixture was stirred at room temperature for 1 day. Then it was concentrated under reduced pressure and purified via reversed phase chromatography using aqueous 0.1% TFA solution and MeCN as eluents to obtain 4-bromo-2-chloro-6-methoxy-3-methyl-phenol.

1H NMR (400 MHz, CDCl3): 6.98 (s, 1H), 5.81 (s, 1H), 3.88 (s, 3H), 2.43 (s, 3H).

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 63 (37), 128 (53), 171 (42), 209 (26), 237 (67), 250 (77, [M+]), 252 (100, [M+]), 254 (24, [M+]).

Step C: (4-Bromo-2-chloro-6-methoxy-3-methyl-phenoxy)-triisopropyl-silane

772 mg 4-bromo-2-chloro-6-methoxy-3-methyl-phenol (3.07 mmol) and 788 μL TIPSCl (3.68 mmol) were dissolved in 10 mL DCM. 418 mg imidazole (6.14 mmol) was added and the mixture was stirred at room temperature overnight. Then it was concentrated under reduced pressure and purified via flash chromatography using heptane as eluent to obtain (4-bromo-2-chloro-6-methoxy-3-methyl-phenoxy)-triisopropyl-silane.

1H NMR (400 MHz, CDCl3): 6.95 (s, 1H), 3.77 (s, 3H), 2.44 (s, 3H), 1.30 (septet, 3H), 1.10 (d, 18H).

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 59 (19), 183 (15), 279 (27), 308 (13), 348 (76), 350 (100), 352 (28), 363 (66), 365 (89), 367 (24).

Step D: [2-Chloro-6-methoxy-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) phenoxy]-triisopropyl-silane

3.07 mmol (4-bromo-2-chloro-6-methoxy-3-methyl-phenoxy)-triisopropyl-silane was dissolved in 20 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. 2.1 mL nBuLi (3.40 mmol in 1.6 M hexanes) was added and the mixture was stirred for 5 minutes, then 820 μL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (4.00 mmol, dissolved in 5 mL dry THF) was added and the mixture was allowed to warm up to room temperature. It was quenched with saturated NH4Cl solution, extracted with EtOAc, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain [2-chloro-6-methoxy-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-triisopropyl-silane.

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 225 (14), 254 (10), 296 (13), 396 (67), 398 (26), 411 (100), 413 (39).

Step E: 2-Chloro-6-methoxy-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) phenol

3.07 mmol [2-chloro-6-methoxy-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-triisopropyl-silane was dissolved in 5 mL THF, then 3.5 mL TBAF (3.50 mmol in 1 M THF) was added and the mixture was stirred for 10 minutes. Then it was diluted with EtOAc, washed with water and brine, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 5k.

1H NMR (400 MHz, DMSO-d6): 9.71 (s, 1H), 7.09 (s, 1H), 3.79 (s, 3H), 2.44 (s, 3H), 1.28 (s, 12H).

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 183 (23), 198 (100), 199 (52), 223 (13), 241 (9), 283 (6), 298 (51, [M+]), 300 (17, [M+]).

Preparation 51: 2-Chloro-3,6-dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol Step A: (4-Bromo-2-chloro-6-methyl-phenoxy)-triisopropyl-silane

5.00 g 4-bromo-2-chloro-6-methyl-phenol (22.6 mmol) and 5.80 mL TIPSCl (27.1 mmol) were dissolved in 50 mL DCM. 3.07 g imidazole (45.1 mmol) was added and the mixture was stirred at room temperature overnight. Then it was concentrated under reduced pressure and purified via flash chromatography using heptane as eluent to obtain (4-bromo-2-chloro-6-methyl-phenoxy)-triisopropyl-silane.

1H NMR (400 MHz, CDCl3): 7.31 (s, 1H), 7.15 (s, 1H), 2.62 (s, 3H), 1.39 (septet, 3H), 1.13 (d, 18H).

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 93 (33), 183 (30), 307 (14), 333 (87), 335 (100), 337 (30).

Step B: (4-Bromo-2-chloro-3,6-dimethyl-phenoxy)-triisopropyl-silane

6.70 g (4-bromo-2-chloro-6-methyl-phenoxy)-triisopropyl-silane (17.7 mmol) was dissolved in 80 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. 10.6 mL LDA was added (21.2 mmol in 2 M THF, EtPh) and the mixture was stirred for 1 hour, then 2.2 mL MeI (35.4 mmol) was added and the mixture was allowed to warm up to room temperature. It was quenched with saturated NH4Cl solution, extracted with Et2O, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane as eluent. The unreacted starting material was separated via reversed phase chromatography using MeCN as eluent to obtain (4-bromo-2-chloro-3,6-dimethyl-phenoxy)-triisopropyl-silane.

1H NMR (400 MHz, CDCl3): 7.23 (s, 1H), 2.47 (s, 3H), 2.24 (s, 3H), 1.40 (septet, 3H), 1.13 (d, 18H).

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 93 (23), 146 (17), 197 (26), 347 (76), 349 (100), 351 (27).

Step C: [2-Chloro-3,6-dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-triisopropyl-silane

1.18 g (4-bromo-2-chloro-3,6-dimethyl-phenoxy)-triisopropyl-silane (3.00 mmol) was dissolved in 15 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. 2.25 mL nBuLi (3.60 mmol in 1.6 M hexanes) was added and the mixture was stirred for 15 minutes, then 1.02 mL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (5.00 mmol) was added and the mixture was allowed to warm up to room temperature. It was quenched with saturated NH4Cl solution, extracted with Et2O, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain [2-chloro-3,6-dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-triisopropyl-silane.

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 83 (100), 101 (30), 225 (14), 395 (54), 397 (21).

Step D: 2-Chloro-3,6-dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol

968 mg [2-chloro-3,6-dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-triisopropyl-silane (2.20 mmol) was dissolved in 10 mL THF, then 2.4 mL TBAF (2.40 mmol in 1 M THF) was added and the mixture was stirred for 5 minutes. Then it was diluted with Et2O and EtOAc, washed with water and brine, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 5l.

1H NMR (400 MHz, CDCl3): 7.48 (s, 1H), 5.89 (s, 1H), 2.58 (s, 3H), 2.26 (s, 3H), 1.35 (s, 12H).

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 91 (14), 147 (22), 182 (100), 183 (61), 225 (43), 267 (14), 282 (26, [M+]), 284 (9, [M+]).

Preparation 5m: 2-Chloro-6-fluoro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol Step A: 4-Bromo-2-chloro-6-fluoro-3-methyl-phenol

3.21 g 2-chloro-6-fluoro-3-methyl-phenol (20.0 mmol) was dissolved in 60 mL THF, then 3.74 g NBS (21.0 mmol) was added and the mixture was stirred at room temperature for 10 minutes. Then it was concentrated under reduced pressure and purified via flash chromatography using heptane and EtOAc as eluents to obtain 4-bromo-2-chloro-6-fluoro-3-methyl-phenol.

1H NMR (400 MHz, CDCl3): 7.25 (d, 1H), 5.63 (s, 1H), 2.44 (d, 3H).

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 75 (37), 95 (36), 159 (100), 161 (31), 238 (47, [M+]), 240 (61, [M+]), 242 (15, [M+]).

Step B: (4-Bromo-2-chloro-6-fluoro-3-methyl-phenoxy)-triisopropyl-silane

4.06 g 4-bromo-2-chloro-6-fluoro-3-methyl-phenol (19.9 mmol) and 4.35 mL TIPSCl (20.3 mmol) were dissolved in 50 mL DCM. 2.31 g imidazole (33.9 mmol) was added and the mixture was stirred at room temperature for 1 hour. Then it was concentrated under reduced pressure and purified via flash chromatography using heptane as eluent to obtain (4-bromo-2-chloro-6-fluoro-3-methyl-phenoxy)-triisopropyl-silane.

1H NMR (400 MHz, CDCl3): 7.21 (d, 1H), 2.45 (d, 3H), 1.32 (septet, 3H), 1.10 (d, 18H).

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 77 (100), 97 (37), 187 (22), 215 (58), 267 (42), 269 (54), 311 (13), 351 (32), 353 (43).

Step C: [2-Chloro-6-fluoro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) phenoxy]-triisopropyl-silane

6.22 g (4-bromo-2-chloro-6-fluoro-3-methyl-phenoxy)-triisopropyl-silane (15.7 mmol) was dissolved in 65 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. 11.8 mL nBuLi (18.9 mmol in 1.6 M hexanes) was added and the mixture was stirred for 30 minutes, then 5.34 mL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (26.2 mmol) was added and the mixture was allowed to warm up to room temperature. It was quenched with saturated NH4Cl solution, extracted with DCM, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain [2-chloro-6-fluoro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-triisopropyl-silane.

1H NMR (400 MHz, CDCl3): 7.37 (d, 1H), 2.54 (d, 3H), 1.33 (m, 15H), 1.10 (d, 18H).

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 83 (100), 101 (18), 275 (8), 399 (7).

Step D: 2-Chloro-6-fluoro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol

5.18 g [2-chloro-6-fluoro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) phenoxy]-triisopropyl-silane (11.7 mmol) was dissolved in 15 mL THF, then 12.9 mL TBAF (12.9 mmol in 1 M THF) was added and the mixture was stirred for 5 minutes. Then it was diluted with EtOAc, washed with pH 5 HCl solution, water and brine, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 5m.

1H NMR (400 MHz, CDCl3): 7.45 (d, 1H), 5.74 (s, 1H), 2.56 (d, 3H), 1.34 (s, 12H).

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 59 (30), 85 (17), 151 (23), 186 (100), 187 (63), 229 (49), 272 (25), 286 (22, [M+]), 288 (7, [M+]).

Preparation 5n: 3-[2-Chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) phenyl]-N,N-dimethyl-propan-1-amine Step A: 1-Bromo-3-chloro-4-iodo-2-methyl-benzene

7.93 g 4-bromo-2-chloro-1-iodo-benzene (25.0 mmol) was dissolved in 300 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. 13.8 mL LDA was added (27.5 mmol in 2 M THF, EtPh) and the mixture was stirred for 75 minutes, then 3.1 mL MeI (50.0 mmol) was added and the mixture was allowed to warm up to room temperature. It was quenched with saturated NH4Cl solution and most of the volatiles were evaporated under reduced pressure. Then it was extracted with DCM, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane as eluent to obtain 1-bromo-3-chloro-4-iodo-2-methyl-benzene.

1H NMR (400 MHz, CDCl3): 7.55 (d, 1H), 7.17 (d, 1H), 2.62 (s, 3H).

MS (EL 70 eV) m/z (% relative intensity, [ion]): 63 (27), 89 (47), 124 (35), 251 (43), 330 (81, [M+]), 332 (100, [M+]), 334 (25, [M+]).

Step B: 3-(4-Bromo-2-chloro-3-methyl-phenyl)-N,N-dimethyl-prop-2-yn-1-amine

1.66 g 1-bromo-3-chloro-4-iodo-2-methyl-benzene (5.00 mmol), 626 μL N,N-dimethylprop-2-yn-1-amine (7.00 mmol), 176 mg PdCl2(PPh3)2 (0.25 mmol) and 95 mg copper(I) iodide (0.50 mmol) were dissolved in 26 mL dry DIPA and the mixture was stirred at 40° C. under N2 for 30 minutes. Then it was concentrated under reduced pressure and purified via flash chromatography using heptane and EtOAc as eluents. Then it was further purified via reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain 3-(4-bromo-2-chloro-3-methyl-phenyl)-N,N-dimethyl-prop-2-yn-1-amine.

1H NMR (400 MHz, CDCl3): 7.38 (d, 1H), 7.16 (d, 1H), 3.52 (s, 2H), 2.52 (s, 3H), 2.38 (s, 6H). MS (M+H): 286.0.

Step C: 3-(4-Bromo-2-chloro-3-methyl-phenyl)-N,N-dimethyl-propan-1-amine

641 mg 3-(4-bromo-2-chloro-3-methyl-phenyl)-N,N-dimethyl-prop-2-yn-1-amine (2.13 mmol) was dissolved in 3 mL AcOH, then 300 mg red phosphorus and 5 mL HI (67% aqueous solution) was added. The mixture was heated to 180° C. for 20 minutes via microwave irradiation. After cooling to room temperature it was neutralized with 2 M NaOH, extracted with DCM, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain 3-(4-bromo-2-chloro-3-methyl-phenyl)-N,N-dimethyl-propan-1-amine.

1H NMR (400 MHz, CDCl3): 7.35 (d, 1H), 6.92 (d, 1H), 2.70 (t, 2H), 2.51 (s, 3H), 2.29 (t, 2H), 2.21 (s, 6H), 1.74 (quint, 2H). MS (M+H): 290.0.

Step D: 3-[2-Chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-N,N-dimethyl-propan-1-amine

378 mg 3-(4-bromo-2-chloro-3-methyl-phenyl)-N,N-dimethyl-propan-1-amine (1.30 mmol) was dissolved in 5 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. 0.94 mL nBuLi (1.50 mmol in 1.6 M hexanes) was added and the mixture was stirred for 5 minutes, then 370 μL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (1.80 mmol) was added and the mixture was allowed to warm up to room temperature. It was quenched with water and brine, extracted with EtOAc, dried over Na2SO4, filtered and concentrated under reduced pressure and used as Preparation 5n without further purification.

MS (M+H): 338.2.

Preparation 5o: [2-Bromo-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) phenoxy]-triisopropyl-silane Step A: (2,4-Dibromophenoxy)-triisopropyl-silane

7.56 g 2,4-dibromophenol (30.0 mmol) and 7.7 mL TIPSCl (36.0 mmol) were dissolved in 100 mL DCM. 4.08 g imidazole (60.0 mmol) was added and the mixture was stirred at room temperature overnight. Then it was concentrated under reduced pressure and purified via flash chromatography using heptane as eluent to obtain (2,4-dibromophenoxy)-triisopropyl-silane.

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 109 (39), 137 (43), 201 (22), 279 (24), 309 (27), 337 (20), 363 (48), 365 (100), 367 (52).

Step B: (2,4-Dibromo-3-methyl-phenoxy)-triisopropyl-silane

11.15 g (2,4-dibromophenoxy)-triisopropyl-silane (27.3 mmol) was dissolved in 100 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. 16.4 mL LDA (32.8 mmol in 2 M THF, EtPh) was added and the mixture was stirred for 1 hour, then 3.4 mL MeI (54.6 mmol) was added and the mixture was allowed to warm up to room temperature. It was quenched with saturated NH4Cl solution, extracted with EtOAc, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane as eluent to obtain (2,4-dibromo-3-methyl-phenoxy)-triisopropyl-silane.

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 139 (19), 161 (14), 351 (13), 377 (54), 379 (100), 381 (53).

Step C: [2-Bromo-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-triisopropyl-silane

8.70 g (2,4-dibromo-3-methyl-phenoxy)-triisopropyl-silane (20.6 mmol) was dissolved in 50 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. 14.2 mL nBuLi (22.7 mmol in 1.6 M hexanes) was added and the mixture was stirred for 1 minute, then 6.1 mL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (30.0 mmol) was added and the mixture was allowed to warm up to room temperature. It was quenched with saturated NH4Cl solution, extracted with EtOAc, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via reversed phase chromatography using MeCN as eluent to obtain Preparation 5o.

1H NMR (400 MHz, CDCl3): 7.57 (d, 1H), 6.71 (d, 1H), 2.65 (s, 3H), 1.37-1.27 (m, 15H), 1.13 (d, 18H).

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 55 (54), 83 (100), 139 (27), 425 (53), 427 (54).

Preparation 5p: 1-[2-[2,3-Dichloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) phenoxy]ethyl]-4-methyl-piperazine Step A: 4-Bromo-2,3-dichloro-phenol

1.63 g 2,3-dichlorophenol (10.0 mmol) was dissolved in 30 mL DCM and was cooled to 0° C. Then 512 μL bromine (10.0 mmol) was added and the mixture was allowed to warm up to room temperature and the mixture was stirred at room temperature overnight. Then it was washed with saturated Na2S2O3 solution, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain a mixture of 6-bromo-2,3-dichloro-phenol and 4-bromo-2,3-dichloro-phenol.

MS (M−H): 239.0.

Step B: 1-[2-(4-Bromo-2,3-dichloro-phenoxy)ethyl]-4-methyl-piperazine

1.90 g mixture of 6-bromo-2,3-dichloro-phenol and 4-bromo-2,3-dichloro-phenol (7.85 mmol), 2.27 g 2-(4-methylpiperazin-1-yl)ethanol (15.7 mmol) and 4.12 g PPh3 (15.7 mmol) were dissolved in 20 mL dry toluene under N2, then 3.62 g ditertbutyl azodicarboxylate (15.7 mmol) was added and the mixture was stirred at room temperature overnight. Then it was concentrated under reduced pressure and the regioisomers were separated via flash chromatography using EtOAc and MeOH as eluents. The desired isomer was further purified via reversed phase chromatography using water and MeCN as eluents to obtain 1-[2-(4-bromo-2,3-dichloro-phenoxy)ethyl]-4-methyl-piperazine.

1H NMR (400 MHz, DMSO-d6): 7.69 (d, 1H), 7.16 (d, 1H), 4.20 (t, 2H), 2.72 (t, 2H), 2.42-2.18 (m, 8H), 2.13 (s, 3H). MS (M+H): 367.0.

Step C: 1-[2-[2,3-Dichloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]ethyl]-4-methyl-piperazine

2.10 g 1-[2-(4-bromo-2,3-dichloro-phenoxy)ethyl]-4-methyl-piperazine (5.70 mmol) was dissolved in 25 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. 3.9 mL nBuLi (6.28 mmol in 1.6 M hexanes) was added and the mixture was stirred for 5 minutes, then 2.0 mL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (10.0 mmol) was added and the mixture was allowed to warm up to room temperature. It was quenched with brine, extracted with DCM, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Preparation 5p.

MS (M+H): 415.2.

Preparation 5q: 1-[2-[[3-chloro-4-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-pyridyl]oxy]ethyl]-4-methyl-piperazine Step A: 5-Bromo-3-chloro-4-methyl-pyridin-2-ol

4.86 g 5-bromo-4-methyl-pyridin-2-ol (25.8 mmol) was dissolved in 250 mL THF, then 4.49 g NCS (33.6 mmol) was added and the mixture was stirred at 60° C. in dark for 45 minutes. Then it was concentrated under reduced pressure and crystallized from Et2O and heptane to get an overweight product, which was crystallized from 100 mL MeCN to give 5-bromo-3-chloro-4-methyl-pyridin-2-ol.

1H NMR (400 MHz, DMSO-d6): 11.50 (br s, 1H), 7.74 (s, 1H), 2.36 (s, 3H). MS (M+H): 222.0, (M−H): 220.0.

Step B: 1-[2-[(5-Bromo-3-chloro-4-methyl-2-pyridyl)oxy]ethyl]-4-methyl-piperazine

2.326 g 5-bromo-3-chloro-4-methyl-pyridin-2-ol (10.45 mmol), 2.163 g 2-(4-methylpiperazin-1-yl)ethanol (15.00 mmol) and 3.935 g PPh3 (15.00 mmol) were dissolved in 30 mL dry toluene under N2, then 3.454 g ditertbutyl azodicarboxylate (15.00 mmol) was added and the mixture was stirred at room temperature under N2 for 20 minutes. Then it was concentrated under reduced pressure and the structural isomers were separated via flash chromatography using EtOAc and MeOH as eluents. The isomer eluting earlier was collected as 1-[2-[(5-bromo-3-chloro-4-methyl-2-pyridyl)oxy]ethyl]-4-methyl-piperazine.

1H NMR (400 MHz, DMSO-d6): 8.24 (s, 1H), 4.41 (t, 2H), 2.68 (t, 2H), 2.48-2.15 (m, 11H), 2.12 (s, 3H). MS (M+H): 348.0.

Step C: 1-[2-[[3-Chloro-4-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-pyridyl]oxy]ethyl]-4-methyl-piperazine

1.917 g 1-[2-[(5-bromo-3-chloro-4-methyl-2-pyridyl)oxy]ethyl]-4-methyl-piperazine (5.50 mmol) was dissolved in 30 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. 4.1 mL nBuLi (6.60 mmol in 1.6 M hexanes) was added and the mixture was stirred for 5 minutes, then 1.46 mL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (7.15 mmol) was added and the mixture was allowed to warm up to room temperature. It was quenched with brine, extracted with DCM, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using EtOAc and MeOH as eluents to obtain Preparation 5q.

MS (M+H): 396.2.

Preparation 5r: 1-[3-[2-Chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]propyl]-4-methyl-piperazine Step A: 3-(4-Bromo-2-chloro-3-methyl-phenyl)prop-2-yn-1-ol

17.43 g 1-bromo-3-chloro-4-iodo-2-methyl-benzene (52.60 mmol, see Step A at Preparation 5n), 3.37 mL prop-2-yn-1-ol (57.86 mmol), 369 mg PdCl2(PPh3)2 (0.53 mmol) and 501 mg copper(I) iodide (2.63 mmol) were dissolved in 100 mL dry DTPA and the mixture was stirred at 40° C. under N2 for 20 minutes. Then it was concentrated under reduced pressure and purified via flash chromatography using heptane and EtOAc as eluents to obtain 3-(4-bromo-2-chloro-3-methyl-phenyl)prop-2-yn-1-ol.

1H NMR (400 MHz, CDCl3): 7.40 (d, 1H), 7.16 (d, 1H), 4.54 (d, 2H), 2.53 (s, 3H), 1.87 (t, 1H).

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 63 (35), 115 (100), 223 (56), 258 (15, [M+]), 260 (18, [M+]), 262 (5, [M+]).

Step B: 3-(4-Bromo-2-chloro-3-methyl-phenyl)prop-2-ynyl methanesulfonate

5.427 g 3-(4-bromo-2-chloro-3-methyl-phenyl)prop-2-yn-1-ol (20.9 mmol) and 4.37 mL DIPEA (25.1 mmol) was dissolved in 50 mL dry DCM under N2, then 1.78 mL methanesulfonyl chloride (23.0 mmol) was added carefully and the mixture was stirred for 10 minutes. Then it was concentrated under reduced pressure and purified via flash chromatography using heptane and EtOAc as eluents to obtain 3-(4-bromo-2-chloro-3-methyl-phenyl)prop-2-ynyl methanesulfonate.

1H NMR (400 MHz, CDCl3): 7.45 (d, 1H), 7.19 (d, 1H), 5.12 (s, 2H), 3.18 (s, 3H), 2.53 (s, 3H).

Step C: 1-[3-(4-Bromo-2-chloro-3-methyl-phenyl)prop-2-ynyl]-4-methyl-piperazine

4.31 g 3-(4-bromo-2-chloro-3-methyl-phenyl)prop-2-ynyl methanesulfonate (12.8 mmol) was dissolved in 120 mL MeCN, and the mixture was added to the stirred mixture of 2.65 g K2CO3 (19.2 mmol), 14.2 mL 1-methylpiperazine (127.7 mmol) and 120 mL MeCN. The mixture was stirred for 30 minutes, then it was filtered and the filtrate was concentrated under reduced pressure. Brine was added and the mixture was extracted with DCM, dried over Na2SO4, filtered and concentrated under reduced pressure to obtain 1-[3-(4-bromo-2-chloro-3-methyl-phenyl)prop-2-ynyl]-4-methyl-piperazine.

MS (M+H): 341.0.

Step D: 1-[3-(4-Bromo-2-chloro-3-methyl-phenyl)propyl]-4-methyl-piperazine

1.51 g 1-[3-(4-bromo-2-chloro-3-methyl-phenyl)prop-2-ynyl]-4-methyl-piperazine (4.42 mmol) was dissolved in 15 mL AcOH, then 500 mg red phosphorus and 10 mL HI (67% aqueous solution) was added. The mixture was heated to 180° C. for 5 minutes via microwave irradiation. After cooling to room temperature it was neutralized with 2 M NaOH, extracted with DCM, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain 1-[3-(4-bromo-2-chloro-3-methyl-phenyl)propyl]-4-methyl-piperazine.

1H NMR (400 MHz, DMSO-d6): 7.50 (d, 1H), 7.13 (d, 1H), 2.68 (t, 2H), 2.47 (s, 3H), 2.46-2.15 (m, 10H), 2.13 (s, 3H), 1.67 (quint, 2H). MS (M+H): 345.0.

Step E: 1-[3-[2-Chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]propyl]-4-methyl-piperazine

708 mg 1-[3-(4-bromo-2-chloro-3-methyl-phenyl)propyl]-4-methyl-piperazine (2.04 mmol) was dissolved in 10 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. 1.7 mL nBuLi (2.70 mmol in 1.6 M hexanes) was added and the mixture was stirred for 5 minutes, then 0.61 mL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (3.00 mmol) was added and the mixture was allowed to warm up to room temperature. It was quenched with brine, extracted with DCM, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Preparation 5r.

MS (M+H): 393.4.

Preparation 5s: 1-[2-[2,3-dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) phenoxy]ethyl]-4-methyl-piperazine Step A: 4-Bromo-2,3-dimethyl-phenol

1.22 g 2,3-dimethylphenol (10.0 mmol) was dissolved in 50 mL MeCN, then 1.78 g NBS (10.0 mmol) was added and the mixture was stirred at room temperature overnight. Then it was concentrated under reduced pressure and purified via flash chromatography using heptane and EtOAc as eluents to obtain 4-bromo-2,3-dimethyl-phenol.

1H NMR (400 MHz, CDCl3): 7.24 (d, 1H), 6.52 (d, 1H), 4.68 (s, 1H), 2.37 (s, 3H), 2.22 (s, 3H).

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 77 (45), 91 (62), 121 (100), 200 (76, [M]+), 202 (74, [M]+).

Step B: 1-[2-(4-Bromo-2,3-dimethyl-phenoxy)ethyl]-4-methyl-piperazine

1.54 g 4-bromo-2,3-dimethyl-phenol (7.66 mmol), 2.21 g 2-(4-methylpiperazin-1-yl)ethanol (15.3 mmol) and 6.03 g PPh3 (23.0 mmol) were dissolved in 20 mL dry toluene under N2, then 5.29 g ditertbutyl azodicarboxylate (23.0 mmol) was added and the mixture was stirred at 45° C. for 2 hours. Then it was concentrated under reduced pressure and purified via flash chromatography using EtOAc and MeOH as eluents to obtain 1-[2-(4-bromo-2,3-dimethyl-phenoxy)ethyl]-4-methyl-piperazine.

1H NMR (400 MHz, CDCl3): 7.31 (d, 1H), 6.58 (d, 1H), 4.06 (t, 2H), 2.83 (t, 2H), 2.70-2.38 (m, 8H), 2.36 (s, 3H), 2.29 (s, 3H), 2.20 (s, 3H).

Step C: 1-[2-[2,3-Dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]ethyl]-4-methyl-piperazine

2.10 g 1-[2(4-bromo-2,3-dimethyl-phenoxy)ethyl]-4-methyl-piperazine (6.42 mmol) was dissolved in 25 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. 4.2 mL nBuLi (6.74 mmol in 1.6 M hexanes) was added and the mixture was stirred for 15 minutes, then 1.44 mL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (7.06 mmol) was added and the mixture was allowed to warm up to room temperature. It was quenched with brine, extracted with DCM, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 5s.

1H NMR (400 MHz, DMSO-d6): 7.46 (d, 1H), 6.75 (d, 1H), 4.02 (t, 2H), 2.68 (t, 2H), 2.48 (br s, 4H), 2.38 (s, 3H), 2.30 (br s, 4H), 2.13 (s, 3H), 2.05 (s, 3H), 1.26 (s, 12H). MS (M+H): 375.4.

Preparation 5t: 2-(4-Bromo-3-chloro-2-methyl-phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

2.92 g 1-bromo-2-chloro-4-iodo-3-methyl-benzene (8.81 mmol) was dissolved in 30 mL dry THF under N2 and 4.8 mL EtMgCl (9.69 mmol in 2 M THF) was added dropwise at room temperature. It was stirred for 10 minutes, then 5.4 mL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (26.4 mmol) was added and the mixture was stirred for 10 minutes. Then it was concentrated under reduced pressure and purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 5t.

1H NMR (400 MHz, DMSO-d6): 7.49 (d, 1H), 7.45 (d, 1H), 2.66 (s, 3H), 1.34 (s, 12H).

Preparation 5u: 1-[2-[2-Chloro-3-ethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]ethyl]-4-methyl-piperazine Step A: 1-[2-(4-Bromo-2-chloro-phenoxy)ethyl]-4-methyl-piperazine

10.373 g (50 mmol) 4-bromo-2-chlorophenol, 14.442 g 2-(4-methylpiperazin-1-yl)ethanol (100 mmol) and 26.229 g PPh3 (100 mmol) were dissolved in 250 mL toluene, then 23.027 g ditertbutyl azodicarboxylate (100 mmol) was added. The mixture was stirred at 50° C. under N2 until no further conversion was observed. The toluene was evaporated under reduced pressure and the residue was purified via flash chromatography using EtOAc and MeOH as eluents

MS (M+H)+=333.0.

Step B: 1-[2-(4-Bromo-2-chloro-3-ethyl-phenoxy)ethyl]-4-methyl-piperazine

2.0 g (6 mmol) 1-[2-(4-bromo-2-chloro-phenoxy)ethyl]-4-methyl-piperazine was dissolved in 50 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. 6 mL LDA (12 mmol in 2 M THF) was added and the mixture was stirred for 3 hour, then 982 mg (6.3 mmol) iodoethane was added and the mixture was allowed to warm up to room temperature. It was quenched with saturated NH4Cl solution, extracted with EtOAc, dried over Na2SO4, filtered and concentrated under reduced pressure.

MS (M+H)+=360.8, 362.8.

Step C: 1-[2-[2-Chloro-3-ethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]ethyl]-4-methyl-piperazine

2099 mg (5.8 mmol) 1-[2-(4-bromo-2-chloro-3-ethyl-phenoxy)ethyl]-4-methyl-piperazine was dissolved in 30 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone and 4.645 mL BuLi (11.61 mmol in 2.5 M THF) was added dropwise. It was stirred for 5 h, then 2.6 mL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (12.77 mmol) was added and the mixture was stirred for 30 minutes. Then it was concentrated under reduced pressure and purified via flash chromatography using EtOAc and MeOH as eluents to obtain Preparation 5u.

MS: (M+H)+=409.2

Preparation 5v: 1-[2-[3-Bromo-2-chloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]ethyl]-4-methyl-piperazine Step A: (2-Chloro-4-iodo-phenoxy)-triisopropyl-silane

10.178 g 2-chloro-4-iodophenol (40.0 mmol), 11.06 g (80 mmol) K2CO3 and 10.17 mL TIPSCl (48.0 mmol) were dissolved in 100 mL ACN. The mixture was stirred at room temperature for 1 h. Then it was concentrated under reduced pressure and purified via flash chromatography using heptane as eluent to obtain (2-chloro-4-iodo-phenoxy)-triisopropyl-silane.

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 63 (6.5), 93 (8), 155 (9), 170 (10), 281 (7), 297 (7.5), 311 (10), 339 (17), 367 (100), 368 (20), 369 (40), 370 (6.5), 410 (1.5, [M+]).

Step B: (3-Bromo-2-chloro-4-iodo-phenoxy)-triisopropyl-silane

820 mg (2-chloro-4-iodo-phenoxy)-triisopropyl-silane (2 mmol) was dissolved in 10 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. 1.15 mL LDA (2.3 mmol in 2 M THF) was added and the mixture was stirred for 1 hour, then 814 mg (2.5 mmol) 1,2-dibromotetrachloroethane was added and the mixture was allowed to warm up to room temperature. It was quenched with saturated NH4Cl solution, extracted with EtOAc, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane as eluent to obtain (3-bromo-2-chloro-4-iodo-phenoxy)-triisopropyl-silane.

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 63 (21), 79 (20), 93 (48), 195 (18), 248 (15), 250 (19), 445 (75), 447 (100), 448 (18), 449 (26), 488 (0.4, [M+]).

Step C: [3-Bromo-2-chloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-triisopropyl-silane

900 mg (3-bromo-2-chloro-4-iodo-phenoxy)-triisopropyl-silane (1.84 mmol) was dissolved in 10 mL dry THF under N2 and 1.01 mL EtMgCl (2.02 mmol in 2 M THF) was added dropwise at room temperature. It was stirred for 10 minutes, then 0.47 mL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (2.3 mmol) was added and the mixture was stirred for 10 minutes. Then it was concentrated under reduced pressure and purified via flash chromatography using heptane and EtOAc as eluents to obtain [3-bromo-2-chloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-triisopropyl-silane.

1H-NMR (400 MHz, CDCl3): 7.39 (d, 1H), 6.84 (d, 1H), 1.38 (s, 12H), 1.32 (m, 3H), 1.12 (d, 18H).

Step D: 3-Bromo-2-chloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol

The resulting intermediate was dissolved in 10 mL THF and 0.5 mL 1M tetrabutylammonium fluoride solution was added. The mixture was stirred at room temperature until no further conversion was observed. Volatiles were evaporated under reduced pressure. The residue was purified via flash chromatography using heptane and EtOAc as eluents to obtain 3-bromo-2-chloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol.

1H-NMR (400 MHz, DMSO-d6): 10.97 (s, 1H), 7.36 (d, 1H), 6.96 (d, 1H), 1.28 (s, 12H).

Step E. 1-[2-[3-Bromo-2-chloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]ethyl]-4-methyl-piperazine

133 mg 3-bromo-2-chloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (0.4 mmol) was dissolved in 5 mL toluene, 82 mg 2-(4-methylpiperazin-1-yl)ethanol (0.57 mmol) and 149 mg PPh3 (0.57 mmol) were added, then 131 mg ditertbutyl azodicarboxylate (0.57 mmol) was added. The mixture was stirred at 50° C. under N2 until no further conversion was observed. The toluene was evaporated under reduced pressure and the residue was purified via flash chromatography using EtOAc and MeOH as eluents to obtain 1-[2-[3-bromo-2-chloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]ethyl]-4-methyl-piperazine (Preparation 5v).

MS: (M+H)+=459.2.

Preparation 5w: 1-[2-[2,3-Dichloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]ethyl]-4-methyl-piperazine Step A: 1-[2-(4-Bromo-2,3-dichloro-phenoxy)ethyl]-4-methyl-piperazine

2.0 g (6 mmol) 1-[2-(4-bromo-2-chloro-phenoxy)ethyl]-4-methyl-piperazine (Preparation 5, Step A) was dissolved in 50 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. 6 mL LDA (12 mmol in 2 M THF) was added and the mixture was stirred for 3 hour, then 3125 mg (13.2 mmol) hexachloroethane was added and the mixture was allowed to warm up to room temperature. It was quenched with saturated NH4Cl solution, extracted with EtOAc, dried over Na2SO4, filtered and concentrated under reduced pressure to obtain 1-[2-(4-bromo-2,3-dichloro-phenoxy)ethyl]-4-methyl-piperazine.

Step B: 1-[2-[2,3-Dichloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]ethyl]-4-methyl-piperazine

1630 mg (4.43 mmol) 1-[2-(4-bromo-2,3-dichloro-phenoxy)ethyl]-4-methyl-piperazine was dissolved in 20 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone and 3.9 mL BuLi (2.5 M THF) was added dropwise. It was stirred for 5 h, then 2.1 mL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (10.2 mmol) was added and the mixture was stirred for 30 minutes. Then it was concentrated under reduced pressure and purified via flash chromatography using EtOAc and MeOH as eluents to obtain Preparation 5w.

MS: (M+H)+=415.0, 417.0.

Preparation 5x: (3-chloro-2-cyano-4-triisopropylsilyloxy-phenyl)boronic Acid Step A: (4-bromo-2-chloro-3-iodo-phenoxy)-triisopropyl-silane

10.91 g (4-bromo-2-chloro-phenoxy)-triisopropyl-silane (Preparation 5c, Step A) (30 mmol) was dissolved in 100 mL dry THF, then cooled to −78° C. At this temperature 20 mL (1.8 M in THF, 1.2 eq) LDA was added over 5 min. Resulting mixture further was stirred for 90 min. Then 9.89 g (39 mmol, 1.3 eq) I2 was added at −78° C. in one portion. After 20 min stirring it was quenched with saturated NH4Cl solution, extracted with EtOAc, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane as eluent to obtain (4-bromo-2-chloro-3-iodo-phenoxy)-triisopropyl-silane.

1H NMR (400 MHz, DMSO-d6): 7.59 (d, 1H), 6.97 (d, 1H), 1.31 (m, 3H), 1.06 (d, 18H).

Step B: 6-bromo-2-chloro-3-triisopropylsilyloxy-benzonitrile

3.62 g (4-bromo-2-chloro-3-iodo-phenoxy)-triisopropyl-silane (7.40 mmol) was dissolved in 20 mL dry DMF and 0.795 g (8.88 mmol, 1.2 eq) CuCN was added, then stirred overnight at 120° C. Reaction mixture was diluted with brine, and then extracted with EtOAc. Organic phase was dried over MgSO4, filtered and evaporated under reduced pressure. The crude product was purified by flash chromatography using heptane and EtOAc as eluents to obtain 6-bromo-2-chloro-3-triisopropylsilyloxy-benzonitrile.

1H NMR (400 MHz, CDCl3): 7.41 (d, 1H), 6.99 (d, 1H), 1.31 (m, 3H), 1.13 (d, 18H).

Step C: (3-chloro-2-cyano-4-triisopropylsilyloxy-phenyl)boronic Acid

1.50 g 6-bromo-2-chloro-3-triisopropylsilyloxy-benzonitrile (3.85 mmol) was dissolved in 10 mL dry THF under N2 and was cooled to −78° C. with dry ice-acetone. 1.85 mL nBuLi (4.63 mmol, 2.5 M in hexanes) was added and the mixture was stirred for 10 minutes, then 0.853 mL triethyl borate (5.01 mmol, 1.3 eq) was added and the mixture was allowed to warm up to room temperature. It was quenched with saturated NH4Cl solution, extracted with EtOAc, dried over Na2SO4, filtered and concentrated under reduced pressure to obtain (3-chloro-2-cyano-4-triisopropylsilyloxy-phenyl)boronic acid.

1H NMR (400 MHz, DMSO-d6): 8.52 (bs, 2H), 7.59 (d, 1H), 7.27 (d, 1H), 1.34 (m, 3H), 1.07 (d, 18H).

Preparation 5y: [2-chloro-3-(methoxymethoxy)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-triisopropyl-silane Step A: 2-chloro-3-triisopropylsilyloxy-phenol

To a stirred solution of 10.0 g 2-chlorobenzene-1,3-diol (69.17 mmol) in 100 mL dry MeCN, 19.12 g potassium carbonate (138.35 mmol, 2 eq) and 16.15 mL TIPSCl (76.09 mmol. 1.1 eq) was added. Resulting mixture was stirred for 30 min. Potassium carbonate was removed by filtration, then the filtrate was concentrated under reduced pressure. This crude product was purified by flash chromatography using heptane and EtOAc as eluents to obtain 2-chloro-3-triisopropylsilyloxy-phenol as colorless oil.

1H NMR (400 MHz, CDCl3): 7.01 (t, 1H), 6.65 (dd, 1H), 6.52 (dd, 1H), 5.62 (bs, 1H), 1.33 (m, 3H), 1.14 (d, 18H).

Step B: [2-chloro-3-(methoxymethoxy)phenoxy]-triisopropyl-silane

4.70 g 2-chloro-3-triisopropylsilyloxy-phenol (15.62 mmol) was dissolved in 50 mL dry THF, and then it was cooled to 0° C. under argon atmosphere. Then 0.687 g NaH (17.18 mmol, 1.1 eq, 60% in mineral oil) was added slowly and stirred for 15 min at this temperature. After addition of 1.41 mL MOMCl (18.74 mmol, 1.2 eq) resulting mixture was allowed to warm up to room temperature and stirred until no further conversion was observed. From the reaction mixture the inorganics were removed by filtration. The filtrate was evaporated under reduced pressure to obtain [2-chloro-3-(methoxymethoxy)phenoxy]-triisopropyl-silane as light-yellow oil, which was used in the next step without further purification.

1H NMR (400 MHz, CDCl3): 7.03 (t, 1H), 6.79 (dd, 1H), 6.63 (dd, 1H), 5.24 (s, 2H), 3.53 (s, 3H), 1.33 (m, 3H), 1.14 (d, 18H).

Step C: [2-chloro-3-(methoxymethoxy)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-triisopropyl-silane

5.39 g [2-chloro-3-(methoxymethoxy)phenoxy]-triisopropyl-silane (15.62 mmol) was dissolved in 50 mL dry THF, and then it was cooled to −78° C. under argon atmosphere.

Then 7.50 mL butyl lithium (18.74 mmol, 1.2 eq, 2.5 M in hexan) was added. Resulting mixture was stirred for 90 min. To the ortho-lithiated intermediate 4.78 mL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (23.43 mmol, 1.5 eq) was added. After 30 min stirring at −78° C. we have observed full conversion. It was quenched with saturated NH4Cl solution, extracted with EtOAc, dried over Na2SO4, filtered and concentrated under reduced pressure to obtain [2-chloro-3-(methoxymethoxy)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-triisopropyl-silane as yellow oil.

1H NMR (400 MHz, CDCl3): 7.52 (d, 1H), 6.71 (d, 1H), 5.15 (s, 2H), 3.67 (s, 3H), 1.35 (s, 12H), 1.33 (m, 3H), 1.14 (d, 18H).

Preparation 6a: Ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl) propanoate

186.6 g ethyl (2R)-2-[5-bromo-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetra-hydropyran-2-yloxyphenyl)propanoate (Preparation 4a) (310.3 mmol) and 99.99 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (372.3 mmol) were dissolved in 1.2 L THF, then 202.2 g Cs2CO3 (620.6 mmol) dissolved in 300 mL water was added. Then 11.0 g AtaPhos (15.51 mmol) was added, and the mixture was stirred under nitrogen at reflux temperature until no further conversion was observed. Most of the volatiles were evaporated under reduced pressure, then it was diluted with dichloromethane and brine. After shaking the pH of the aqueous phase was set to 8 with 2 M HCl. After phase separation the aqueous phase was extracted with dichloromethane. The organic layers were combined and dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereoisomers were separated via flash chromatography using heptane and ethyl acetate as eluents. The diastereoisomer pair eluting later was collected as Preparation 6a.

1H NMR (500 MHz, DMSO-d6, 1:1 mixture of diastereomers): 10.27 (br s, 1H), 8.60 (s, 1H), 7.30 (m, 2H), 7.22 (m, 2H), 7.16/7.14 (d, 1H), 7.12 (m, 1H), 7.00 (d, 1H), 6.96 (d, 1H), 6.74/6.73 (t, 1H), 6.34/6.36 (d, 1H), 5.55/5.52 (m, 1H), 5.54/5.41 (dd, 1H), 4.06 (q, 2H), 3.68/3.54 (m, 2H), 3.10/3.07 (dd, 1H), 2.44 (dd, 1H), 1.98/1.90 (br s, 1H), 1.85/1.83 (s, 3H), 1.79 (br s, 2H), 1.64 (br s, 1H), 1.59 (br s, 1H), 1.54 (br s, 1H), 1.09/1.08 (t, 3H).

HRMS: (M+H)=663.1728 and 663.1717.

Preparation 6b: Ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-(pyrazin-2-ylmethoxy)phenyl]propanoate

2.52 g ethyl (2R)-2-[5-bromo-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-(pyrazin-2-ylmethoxy)phenyl]propanoate (Preparation 4b) (4.1 mmol) and 2.2 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (8.2 mmol) were dissolved in 30 mL 1,4-dioxane, then 2.67 g Cs2CO3 (8.2 mmol) dissolved in 15 mL water was added. Then 284 mg AtaPhos (0.41 mmol) was added, and the mixture was stirred under nitrogen at 100° C. until no further conversion was observed. Most of the volatiles were evaporated under reduced pressure, then it was diluted with dichloromethane and brine. After shaking the pH of the aqueous phase was set to 7 with 2 M HCl. After phase separation the aqueous phase was extracted with dichloromethane. The organic layers were combined and dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereoisomers were separated via flash chromatography using heptane and ethyl acetate as eluents. The diastereoisomer eluting later was collected as Preparation 6b.

1H NMR (500 MHz, DMSO-d6): 10.27 (s, 1H), 8.92 (d, 1H), 8.76-8.61 (m, 2H), 8.58 (s, 1H), 7.30 (m, 2H), 7.22 (m, 2H), 7.19 (m, 1H), 7.16 (d, 1H), 7.07 (dm, 1H), 6.97 (d, 1H), 6.76 (m, 1H), 6.30 (dm, 1H), 5.46 (dd, 1H), 5.30 (d, 1H), 5.25 (d, 1H), 4.07 (m, 1H), 4.04 (m, 1H), 3.16 (dd, 1H), 2.49 (dd, 1H), 1.80 (s, 3H), 1.08 (t, 3H).

HRMS: (M+H)=671.1533.

Preparation 6c: Ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(5-fluoro-2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl) propanoate and Preparation 6a: Ethyl (2R)-2-[(5Ra)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(5-fluoro-2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl) propanoate

174.0 g ethyl (2R)-2-[5-bromo-6-(5-fluoro-2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 4c) (294.2 mmol) and 94.81 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (353.0 mmol) were dissolved in 1.18 L THF, then 191.7 g Cs2CO3 (588.4 mmol) dissolved in 300 mL water was added. Then 10.41 g AtaPhos (14.71 mmol) was added, and the mixture was stirred under nitrogen at 60° C. until no further conversion was observed. Most of the volatiles were evaporated under reduced pressure, then it was diluted with dichloromethane and brine. After shaking the pH of the aqueous phase was set to 8 with 2 M HCl. After phase separation the aqueous phase was extracted with dichloromethane. The organic layers were combined and dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereoisomers were separated via flash chromatography using heptane and ethyl acetate as eluents.

The diastereoisomer pair eluting earlier was collected as Preparation 6q.

1H NMR (500 MHz, DMSO-d6, 1:1 mixture of diastereomers): 10.44 (s, 1H), 8.58 (s, 1H), 7.11 (t, 1H), 7.02/7.00 (d, 1H), 6.98 (d, 1H), 6.95/6.94 (d, 1H), 6.73 (t, 1H), 6.21/6.19 (d, 1H), 5.87 (dd, 1H), 5.71 (t, 1H), 5.55/5.49 (t, 1H), 5.47/5.34 (dd, 1H), 4.10 (q, 1H), 4.08 (q, 1H), 3.66 (m, 1H), 3.52 (m, 1H), 3.23 (dd, 1H), 2.33 (dd, 1H), 2.22/2.21 (t, 3H), 2.03-1.49 (m, 6H), 1.11/1.10 (t, 3H).

HRMS: (M+H)=653.1518

The diastereoisomer pair eluting later was collected as Preparation 6c.

1H NMR (500 MHz, DMSO-d6, 1:1 mixture of diastereomers): 10.40 (s, 1H), 8.58 (s, 1H), 7.15 (t, 1H), 7.10 (d, 1H), 7.04 (d, 1H), 7.01 (d, 1H), 6.81/6.80 (t, 1H), 6.38/6.36 (d, 1H), 5.89 (dd, 1H), 5.69 (t, 1H), 5.56/5.52 (t, 1H), 5.56/5.43 (dd, 1H), 4.05 (q, 2H), 3.68 (m, 1H), 3.54 (m, 1H), 3.13 (dd, 1H), 2.36 (dd, 1H), 1.95/1.94 (s, 3H), 1.82-1.51 (m, 6H), 1.09 (t, 3H).

HRMS: (M+H)=653.1485 and 653.1492.

Preparation 6d: Ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl) propanoate

36.3 g ethyl (2R)-2-[5-bromo-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 4d) (63.3 mmol) and 18.7 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (69.6 mmol) were dissolved in 400 mL THF, then 32.6 g Cs2CO3 (100.0 mmol) dissolved in 100 mL water was added. Then 1.8 g AtaPhos (2.5 mmol) was added, and the mixture was stirred under nitrogen at reflux temperature until no further conversion was observed. Then it was diluted with dichloromethane and brine. After shaking the pH of the aqueous phase was set to 8 with 2 M HCl. After phase separation the aqueous phase was extracted with dichloromethane. The organic layers were combined and dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereoisomers were separated via flash chromatography using heptane and ethyl acetate as eluents. The diastereoisomer pair eluting later was collected as Preparation 6d.

1H NMR (400 MHz, DMSO-d6, 1:1 mixture of diastereomers): 10.40 (s, 1H), 8.58/8.57 (s, 1H), 7.80/7.79 (d, 1H), 7.15 (tm, 1H), 7.10 (d, 1H), 7.05 (d, 1H), 7.02 (d, 1H), 6.81 (m, 1H), 6.54 (dd, 1H), 6.39 (dm, 1H), 5.69 (dm, 1H), 5.57 (m, 1H), 5.55/5.43 (ddd, 1H), 4.06 (m, 2H), 3.68 (m, 1H), 3.54 (m, 1H), 3.33 (s, 3H), 3.13 (td 1H), 2.36 (m, 1H), 1.94/1.93 (s, 3H), 1.80 (m, 2H), 1.71-1.48 (m, 3H), 1.09 (td, 3H).

MS: (M+H)+=635.0.

Preparation 6e: Ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate

2.013 g ethyl (2R)-2-[5-bromo-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (Preparation 4e) (4.0 mmol) and 1.396 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (5.2 mmol) were dissolved in 16 mL 1,4-dioxane, then 2.607 g Cs2CO3 (8.0 mmol) dissolved in 4 mL water was added. Then 57 mg AtaPhos (0.08 mmol) was added, rinsed with nitrogen, and heated at 110° C. via microwave irradiation until no further conversion was observed. Then it was diluted with dichloromethane and brine. After shaking the pH of the aqueous phase was set to 5 with 2 M HCl. After phase separation the aqueous phase was extracted with dichloromethane. The organic layers were combined and dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereoisomers were separated via flash chromatography using heptane and ethyl acetate as eluents. The diastereoisomer eluting later was collected as Preparation 6e.

1H NMR (500 MHz, DMSO-d6): 10.40 (br s, 1H), 8.57 (s, 1H), 7.79 (d, 1H), 7.18 (td, 1H), 7.08 (d, 1H), 7.04 (d, 1H), 6.91 (d, 1H), 6.77 (t, 1H), 6.53 (dd, 1H), 6.36 (dd, 1H), 5.67 (d, 1H), 5.40 (dd, 1H), 4.04 (m, 2H), 3.77 (s, 3H), 3.00 (dd, 1H), 2.42 (dd, 1H), 1.92 (s, 3H), 1.07 (t, 3H).

HRMS: (M+H)=565.1187.

Preparation 6f: Ethyl (2R)-2-[6-(5-chloro-2-furyl)-(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(4-methoxyphenyl)methoxy]phenyl]propanoate

11.11 g ethyl (2R)-2-[5-bromo-6-(5-chloro-2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(4-methoxyphenyl)methoxy]phenyl]propanoate (Preparation 4f) (17.28 mmol) and 7.0 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (26.0 mmol) were dissolved in 100 mL 1,4-dioxane, then 11.4 g Cs2CO3 (35.0 mmol) dissolved in 50 mL water was added. Then 1.22 g AtaPhos (1.73 mmol) was added, and the mixture was stirred under nitrogen at reflux temperature until no further conversion was observed. Then it was diluted with dichloromethane and brine. After shaking the pH of the aqueous phase was set to 6 with 2 M HCl. After phase separation the aqueous phase was extracted with dichloromethane. The organic layers were combined and dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereoisomers were separated via flash chromatography using heptane and ethyl acetate as eluents. The diastereoisomer eluting later was collected as Preparation 6f.

MS: (M+H)=705.0.

Preparation 6g: Ethyl (2R)-2-[6-(5-chloro-2-furyl)-(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[[(2S)-tetrahydrofuran-2-yl]methoxy]phenyl]propanoate

547 mg ethyl (2R)-2-[5-bromo-6-(5-chloro-2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[[(2S)-tetrahydrofuran-2-yl]methoxy]phenyl]propanoate (Preparation 4g) (0.752 mmol) and 403 mg 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (1.5 mmol) were dissolved in the mixture of 5 mL THF and 5 mL 1,4-dioxane, then 652 mg Cs2CO3 (2.0 mmol) dissolved in 5 mL water was added. Then 53 g AtaPhos (0.075 mmol) was added, rinsed with nitrogen, heated at 100° C. via microwave irradiation until no further conversion was observed. Then it was diluted with dichloromethane and brine. After shaking the pH of the aqueous phase was set to 6 with 2 M HCl. After phase separation the aqueous phase was extracted with dichloromethane. The organic layers were combined and dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereoisomers were separated via flash chromatography using heptane and ethyl acetate as eluents. The diastereoisomer eluting later was collected as Preparation 6g.

MS: (M+H)=669.0.

Preparation 6h: Ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(4-fluoro-3-methoxy-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

22.0 g ethyl (2R)-2-[5-bromo-6-(4-fluoro-3-methoxy-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 4h) (34.84 mmol) and 11.23 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (41.80 mmol) were dissolved in 200 mL THF, then 34.05 g Cs2CO3 (104.5 mmol) dissolved in 200 mL water was added. Then 2.46 g AtaPhos (3.48 mmol) was added, and the mixture was stirred under nitrogen at 60° C. until no further conversion was observed. Then it was diluted with dichloromethane and brine. After shaking the pH of the aqueous phase was set to 7 with 2 M HCl. After phase separation the aqueous phase was extracted with dichloromethane. The organic layers were combined and dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereoisomers were separated via flash chromatography using heptane and ethyl acetate as eluents. The diastereoisomer pair eluting later was collected as Preparation 6h.

1H NMR (400 MHz, DMSO-d6, 1:1 mixture of diastereomers): 10.30 (s, 1H), 8.61/8.60 (s, 1H), 7.26/7.23 (d, 1H), 7.19/7.17 (d, 1H), 7.13 (m, 1H), 7.01 (d, 1H), 6.99 (d, 1H), 6.94 (m, 1H), 6.87 (dd, 1H), 6.74 (m, 1H), 6.30 (m, 1H), 5.56/5.53 (m, 1H), 5.53/5.42 (m, 1H), 4.07 (m, 2H), 3.68/3.56 (m, 2H), 3.59/3.58 (s, 3H), 3.15 (m, 1H), 2.42 (dd, 1H), 2.03-1.89 (br s, 1H), 1.86/1.84 (s, 3H), 1.79 (br s, 2H), 1.71-1.48 (br s, 3H), 1.10 (td, 3H).

MS: (M+H)=693.0.

Preparation 6i: Methyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate and Preparation 6n: Methyl (2R)-2-[(5Ra)-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate

13.17 g methyl (2R)-2-(6-ethyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-3-phenyl-propanoate (Preparation 4i) (28.12 mmol) and 10.57 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (39.37 mmol) were dissolved in 100 mL 2-Me-THF, then 40 mL TBAOH (1 M aqueous solution) was added. Then 893 mg AtaPhos (1.406 mmol) was added, and the mixture was stirred under nitrogen at reflux temperature until no further conversion was observed. It was diluted with EtOAc and 1 mL HCl (2 M aqueous solution), then it was washed with water and brine. The organic layer was dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereoisomers were separated via flash chromatography using heptane and ethyl acetate as eluents. The diastereoisomer eluting earlier was collected as Preparation 6n.

1H NMR (500 MHz, DMSO-d6): 10.22 (br, s 1H), 8.53 (s, 1H), 7.16 (m, 3H), 7.07 (d, 1H), 7.00 (d, 1H), 6.66 (m, 2H), 5.45 (dd, 1H), 3.54 (s, 3H), 2.93 (dd, 1H), 2.66 (dd, 1H), 2.62 (m, 2H), 1.99 (s, 3H), 1.15 (t, 3H).

HRMS: (M+H)=483.1137.

The diastereoisomer eluting later was collected as Preparation 6i.

1H NMR (500 MHz, DMSO-d6): 10.26 (br s, 1H), 8.52 (s, 1H), 7.14 (m, 3H), 6.97 (d, 1H), 6.94 (d, 1H), 6.65 (m, 2H), 5.30 (dd, 1H), 3.64 (s, 3H), 2.99 (dd, 1H), 2.66 (m, 2H), 2.54 (dd, 1H), 2.17 (s, 3H), 1.15 (t, 3H).

HRMS: (M+H)=483.1126.

Preparation 6j: Methyl (2R)-2-[6-ethyl-(5Sa)-5-(4-hydroxy-2-methyl-phenyl) thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate and Preparation 6o: Methyl (2R)-2-[6-ethyl-(5Ra)-5-(4-hydroxy-2-methyl-phenyl) thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate

2.25 g methyl (2R)-2-(6-ethyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-3-phenyl-propanoate (Preparation 4i) (2.67 mmol) and 1.76 g 3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (8.0 mmol) were dissolved in 15 mL 2-Me-THF, then 2.75 g Ag2CO3 (10.0 mmol) was added. Then 309 mg Pd(PPh3)4 (0.267 mmol) was added, rinsed with nitrogen, heated at 100° C. via microwave irradiation until no further conversion was observed. It was diluted with ethyl acetate and brine. After shaking the pH of the aqueous phase was set to 5 with 2 M HCl. After phase separation the organic layer was dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereoisomers were separated via flash chromatography using heptane and ethyl acetate as eluents. The diastereoisomer eluting earlier was collected as Preparation 6j.

1H NMR (500 MHz, DMSO-d6): 9.44 (s, 1H), 8.52 (s, 1H), 7.16 (m, 3H), 7.05 (d, 1H), 6.78 (d, 1H), 6.76 (dd, 1H), 6.70 (m, 2H), 5.47 (dd, 1H), 3.54 (s, 3H), 2.95 (dd, 1H), 2.68 (dd, 1H), 2.62 (m, 2H), 1.84 (s, 3H), 1.15 (t, 3H).

HRMS: (M+H)=449.1509.

The diastereoisomer eluting later was collected as Preparation 6o.

1H NMR (500 MHz, DMSO-d6): 9.64 (s, 1H), 8.50 (s, 1H), 7.14 (m, 3H), 6.94 (d, 1H), 6.82 (d, 1H), 6.77 (dd, 1H), 6.66 (m, 2H), 5.28 (dd, 1H), 3.64 (s, 3H), 2.97 (dd, 1H), 2.64 (m, 2H), 2.58 (dd, 1H), 2.08 (s, 3H), 1.14 (st, 3H).

HRMS: (M+H)=449.1540.

Preparation 6k: Ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

5.0 g ethyl (2R)-2-(6-ethyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 4j) (9.33 mmol) and 3.22 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (12.0 mmol) were dissolved in 60 mL THF, then 6.52 g Cs2CO3 (20.0 mmol) dissolved in 20 mL water was added. Then 330 mg AtaPhos (0.466 mmol) was added, and the mixture was stirred under nitrogen at 65° C. until no further conversion was observed. Then it was diluted with dichloromethane and brine. After shaking the pH of the aqueous phase was set to 8 with 2 M HCl. After phase separation the aqueous phase was extracted with dichloromethane. The organic layers were combined and dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereoisomers were separated via flash chromatography using heptane and ethyl acetate as eluents. The diastereoisomer pair eluting later was collected as Preparation 6k.

1H NMR (400 MHz, DMSO-d6, 1:1 mixture of diastereomers): 10.24 (br s, 1H), 8.52/8.51 (s, 1H), 7.13 (m, 1H), 7.05 (d, 1H), 7.01 (dm, 1H), 6.98 (d, 1H), 6.79 (m, 1H), 6.35 (m, 1H), 5.55/5.51 (m, 1H), 5.50 (dd, 1H), 5.37 (dd, 1H), 4.03 (m, 2H), 3.67 (m, 1H), 3.53 (m, 1H), 3.06 (dd, 1H), 2.65 (dd, 1H), 2.58 (m, 1H), 2.41 (m, 1H), 1.98/1.97 (s, 3H), 1.79 (m, 2H), 1.68-1.47 (m, 3H), 1.15 (t, 3H), 1.06 (td, 3H).

MS: (M+H)=597.2.

Preparation 6l: Ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate

472 mg ethyl (2R)-2-(5-iodo-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl)oxy-3-(2-methoxyphenyl)propanoate (Preparation 4k) (0.90 mmol) and 403 mg 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (1.5 mmol) were dissolved in 10 mL 1,4-dioxane, then 652 mg Cs2CO3 (2.0 mmol) dissolved in 2 mL water was added. Then 64 mg AtaPhos (0.09 mmol) was added, rinsed with nitrogen, heated at 110° C. via microwave irradiation until no further conversion was observed. Then it was diluted with dichloromethane and brine. After shaking the pH of the aqueous phase was set to 5 with 2 M HCl. After phase separation the aqueous phase was extracted with dichloromethane. The organic layers were combined and dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereoisomers were separated via flash chromatography using heptane and ethyl acetate as eluents. The diastereoisomer eluting later was collected as Preparation 6l.

1H NMR (500 MHz, DMSO-d6): 10.34 (br s, 1H), 8.61 (s, 1H), 7.16 (m, 1H), 7.09 (d, 1H), 6.98 (d, 1H), 6.89 (dm, 1H), 6.69 (m, 1H), 6.19 (dm, 1H), 5.34 (dd, 1H), 4.08 (m, 1H), 4.03 (m, 1H), 3.75 (s, 3H), 3.01 (dd, 1H), 2.49 (dd, 1H), 2.08 (s, 3H), 2.03 (s, 3H), 1.07 (t, 3H).

HRMS: (M+H)=537.1247.

Preparation 6m: Ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

10.59 g ethyl (2R)-2-(5-iodo-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl)oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 41) (17.87 mmol) and 5.76 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (21.45 mmol) were dissolved in 100 mL THF, then 11.64 g Cs2CO3 (35.74 mmol) dissolved in 30 mL water was added. Then 1.26 g AtaPhos (1.79 mmol) was added, and the mixture was stirred under nitrogen at 60C until no further conversion was observed. Then it was diluted with dichloromethane and brine. After shaking the pH of the aqueous phase was set to 8 with 2 M HCl. After phase separation the aqueous phase was extracted with dichloromethane. The organic layers were combined and dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereoisomers were separated via flash chromatography using heptane and ethyl acetate as eluents. The diastereoisomer pair eluting later was collected as Preparation 6m.

MS: (M+H)=607.0.

Preparation 6p: Ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(3,4-difluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

9.18 g ethyl (2R)-2-[(5Sa)-5-bromo-6-(3,4-difluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 4o) (14.82 mmol) and 5.17 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (19.26 mmol) were dissolved in 50 mL THF, then 6.52 g Cs2CO3 (20 mmol) dissolved in 20 mL water was added. Then 525 mg AtaPhos (0.74 mmol) was added, and the mixture was stirred under nitrogen at reflux temperature until no further conversion was observed. Most of the volatiles were evaporated under reduced pressure, then it was diluted with dichloromethane and brine. After shaking the pH of the aqueous phase was set to 8 with 2 M HCl. After phase separation the aqueous phase was extracted with dichloromethane. The organic layers were combined and dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereoisomers were separated via flash chromatography using heptane and ethyl acetate as eluents. The diastereoisomer pair eluting later was collected as Preparation 6p.

1H NMR (500 MHz, DMSO-d6, 1:1 mixture of diastereomers): 10.33 (br s, 1H), 8.63/8.62 (s, 1H), 7.47 (m, 1H), 7.30 (m, 1H), 7.19/7.17 (d, 1H), 7.13 (m, 2H), 7.00 (m, 2H), 6.76/6.76 (dd, 1H), 6.34/6.29 (d, 1H), 5.56/5.53 (m, 1H), 5.54/5.42 (dd, 1H), 4.07 (m, 2H), 3.68/3.54 (m, 2H), 3.11/3.08 (dd, 1H), 2.44 (dd, 1H), 2.05-1.89 (m, 1H), 1.86/1.84 (s, 3H), 1.80 (m, 2H), 1.72-1.45 (m, 3H), 1.09/1.08 (t, 3H).

MS: (M+H)=681.0

Preparation 6r: Ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[[(2R)-tetrahydrofuran-2-yl]methoxy]phenyl]propanoate

7.22 g ethyl (2R)-2-[5-bromo-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[[(2R)-tetrahydrofuran-2-yl]methoxy]phenyl]propanoate (Preparation 4p) (12.00 mmol) and 4.83 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (18.00 mmol) were dissolved in 60 mL dioxane, then 7.82 g Cs2CO3 (24.00 mmol) dissolved in 30 mL water was added. Then 708 mg AtaPhos (1.00 mmol) was added, and the mixture was stirred under nitrogen at reflux temperature until no further conversion was observed. Most of the volatiles were evaporated under reduced pressure, then it was diluted with dichloromethane and brine. After shaking the pH of the aqueous phase was set to 6 with 2 M HCl. After phase separation the aqueous phase was extracted with dichloromethane. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereoisomers were separated via flash chromatography using heptane and ethyl acetate as eluents. The diastereoisomer eluting later was collected as Preparation 6r.

1H NMR (500 MHz, DMSO-d6): 10.25 (br s, 1H), 8.60 (s, 1H), 7.30 (m, 2H), 7.21 (m, 2H), 7.14 (t, 1H), 7.12 (d, 1H), 6.95 (d, 1H), 6.90 (d, 1H), 6.70 (t, 1H), 6.32 (d, 1H), 5.43 (dd, 1H), 4.15 (m, 1H), 4.03 (m, 2H), 3.97 (dd, 1H), 3.93 (dd, 1H), 3.74 (m, 1H), 3.66 (m, 1H), 2.97 (dd, 1H), 2.48 (dd, 1H), 1.99 (m, 1H), 1.88 (m, 1H), 1.85 (s, 3H), 1.82 (m, 1H), 1.81 (m, 1H), 1.05 (t, 3H).

Preparation 6s: Ethyl (2R)-2-[5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-(2,2,2-trifluoroethoxy)phenyl]propanoate (Mixture of Diastereoisomers)

9.17 g ethyl (2R)-2-[5-bromo-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-(2,2,2-trifluoroethoxy)phenyl]propanoate (Preparation 4s) (15.35 mmol) and 4.95 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (18.42 mmol) were dissolved in 50 mL THF, then 15.00 g Cs2CO3 (46.05 mmol) dissolved in 50 mL water was added. Then 1.09 g AtaPhos (1.54 mmol) was added, and the mixture was stirred under nitrogen at 60° C. until no further conversion was observed. Then the most of the volatiles were evaporated under reduced pressure and it was diluted with brine. The pH was set to 6 with 2 M HCl, and the mixture was extracted with dichloromethane. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via flash chromatography using heptane and ethyl acetate as eluents to Preparation 6s as a mixture of diastereoisomers.

1H NMR (400 MHz, DMSO-d6): 10.26 (br s, 1H), 8.60 (s, 1H), 7.32-7.26 (m, 2H), 7.24-7.17 (m, 3H), 7.15-7.11 (m, 1H), 7.03-6.94 (m, 2H), 6.82-6.68 (m, 1H), 6.33/6.19 (dd, 1H), 5.36/5.29 (dd, 1H), 4.83-4.64 (m, 2H), 4.09/4.04 (q, 2H), 3.15/3.01 (dd, 1H), 2.50/2.37 (dd, 1H), 2.32/1.85 (s, 3H), 1.11/1.07 (t, 3H).

Preparation 6t: Ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(2,3-difluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl) propanoate

9.18 g ethyl (2R)-2-[(5Sa)-5-bromo-6-(2,3-difluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 4t) (14.82 mmol) and 5.17 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (19.26 mmol) were dissolved in 50 mL THF, then 6.52 g Cs2CO3 (20 mmol) dissolved in 20 mL water was added. Then 525 mg AtaPhos (0.74 mmol) was added, and the mixture was stirred under nitrogen at reflux temperature until no further conversion was observed. Most of the volatiles were evaporated under reduced pressure, and then it was diluted with dichloromethane and brine. After shaking the pH of the aqueous phase was set to 8 with 2 M HCl. After phase separation the aqueous phase was extracted with dichloromethane. The organic layers were combined and dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereoisomers were separated via flash chromatography using heptane and ethyl acetate as eluents. The diastereoisomer pair eluting later was collected as Preparation 6t.

HRMS calculated for C35H31ClF2N2O6S: 680.1559; found: 681.1618 and 681.1624 of the two isomers.

Preparation 6u: Ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[[2-(2-fluorophenyl)pyrimidin-4-yl]methoxy]phenyl]propanoate

1.407 g (2 mmol) Preparation 4u and 699 mg 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (2.6 mmol) were dissolved in 25 mL THF, then 912 mg Cs2CO3 (2.8 mmol) dissolved in 15 mL water was added. Then 71 mg AtaPhos (0.1 mmol) was added, and the mixture was stirred under nitrogen at 90° C. until no further conversion was observed. Most of the volatiles were evaporated under reduced pressure, then it was diluted with dichloromethane and brine. After shaking the pH of the aqueous phase was set to 6 with 2 M HCl. After phase separation the aqueous phase was extracted with dichloromethane. The organic layers were combined and dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereoisomers were separated via flash chromatography using heptane and ethyl acetate as eluents. The diastereoisomer eluting later was collected as Preparation 6u.

MS: (M+H)+=764.6.

Preparation 6v: ethyl (2R)-2-[5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy]phenyl]propanoate

Using General Procedure (XXXIV) and Preparation 5a as the appropriate boronic acid derivative Preparation 6v was obtained as the mixture of diastereomers.

MS (ESI+): 777.2

Preparation 6w: Ethyl (2R)-2-[(5Ra)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

186.6 g ethyl (2R)-2-[5-bromo-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 4a) (310.3 mmol) and 99.99 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (372.3 mmol) were dissolved in 1.2 L THF, then 202.2 g Cs2CO3 (620.6 mmol) dissolved in 300 mL water was added. Then 11.0 g AtaPhos (15.51 mmol) was added, and the mixture was stirred under nitrogen at reflux temperature until no further conversion was observed. Most of the volatiles were evaporated under reduced pressure, then it was diluted with dichloromethane and brine. After shaking the pH of the aqueous phase was set to 8 with 2 M HCl. After phase separation the aqueous phase was extracted with dichloromethane. The organic layers were combined and dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereoisomers were separated via flash chromatography using heptane and ethyl acetate as eluents. The diastereoisomer pair eluting earlier was collected as Preparation 6w.

HRMS: (M+H)=663.1717 and 663.1746

Preparation 6x: ethyl (2S)-2-[5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

186.6 g ethyl (2S)-2-[5-bromo-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetra-hydropyran-2-yloxyphenyl)propanoate (Preparation 4w) (310.3 mmol) and 99.99 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (372.3 mmol) were dissolved in 1.2 L THF, then 202.2 g Cs2CO3 (620.6 mmol) dissolved in 300 mL water was added. Then 11.0 g AtaPhos (15.51 mmol) was added, and the mixture was stirred under nitrogen at reflux temperature until no further conversion was observed. Most of the volatiles were evaporated under reduced pressure, then it was diluted with dichloromethane and brine. After shaking the pH of the aqueous phase was set to 8 with 2 M HCl. After phase separation the aqueous phase was extracted with dichloromethane. The organic layers were combined and dried over Na2SO4, filtered and concentrated under reduced pressure and the product was purified via flash chromatography using heptane and ethyl acetate as eluents to give Preparation 6x as a mixture of diastereoisomers.

MS: (M+H)=663.2.

Preparation 7a: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

132.3 g ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(4-fluorophenyl)-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 6a) (199.5 mmol), 43.17 g 2-(4-methylpiperazin-1-yl)ethanol (299.3 mmol) and 94.20 g PPh3 (359.1 mmol) were dissolved in 1 L dry toluene, then 78.09 g ditertbutyl azodicarboxylate (339.2 mmol) was added. The mixture was stirred at 50° C. under N2 until no further conversion was observed. 980 mL toluene was evaporated, then 500 mL Et2O was added, and the mixture was stirred and sonicated. The precipitated white crystals were filtered, washed with Et2O to give 65.9 g pure triphenylphosphineoxide. The filtrate was concentrated under reduced pressure and purified via flash chromatography using EtOAc and MeOH as eluents to obtain Preparation 7a.

MS: (M+H)+=789.2.

Preparation 7b: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-4-(2-dimethylaminoethyloxy)-2-methyl-phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

4.94 g ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(4-fluorophenyl)-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 6a) (7.5 mmol), 1.34 g 2-(dimethylamino)ethanol (15 mmol) and 3.94 g PPh3 (15 mmol) were dissolved in 30 mL dry toluene, then 3.45 g ditertbutyl azodicarboxylate (15 mmol) was added. The mixture was stirred at 50° C. under N2 until no further conversion was observed. The toluene was evaporated under reduced pressure and the residue was purified via flash chromatography using DCM and MeOH as eluents to obtain Preparation 7b.

MS: (M+H)+=734.2.

Preparation 7c: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(5-fluoro-2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

11.55 g ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(5-fluoro-2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 6c) (7.5 mmol), 5.77 g 2-(4-methylpiperazin-1-yl)ethanol (40 mmol), and 10.49 g PPh3 (40 mmol) were dissolved in 100 mL dry toluene, then 9.21 g ditertbutyl azodicarboxylate (40 mmol) was added. The mixture was stirred at 50° C. under N2 until no further conversion was observed. The toluene was evaporated under reduced pressure and the residue was purified via flash chromatography using DCM and MeOH as eluents to obtain Preparation 7c.

MS: (M+H)+=695.2.

Preparation 7d: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-4-(2-dimethylaminoethyloxy)-2-methyl-phenyl]-6-(5-fluoro-2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

2.87 g ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(5-fluoro-2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 6c) (5.05 mmol), 1.35 g 2-(dimethylamino)ethanol (15.15 mmol) and 3.98 g PPh3 (15.15 mmol) were dissolved in 100 mL dry toluene, then 3.49 g ditertbutyl azodicarboxylate (15.15 mmol) was added. The mixture was stirred at 50° C. under N2 until no further conversion was observed. The toluene was evaporated under reduced pressure and the residue was purified via flash chromatography using EtOAc and MeOH as eluents to obtain Preparation 7d.

MS: (M+H)+=724.2.

Preparation 7e: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

19.05 g ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 6d) (30 mmol), 8.65 g 2-(4-methylpiperazin-1-yl)ethanol (60 mmol) and 15.74 g PPh3 (60 mmol) were dissolved in 200 mL dry toluene, then 13.81 g ditertbutyl azodicarboxylate (60 mmol) was added. The mixture was stirred at 50° C. under N2 until no further conversion was observed. The toluene was evaporated under reduced pressure and the residue was purified via flash chromatography using EtOAc and MeOH as eluents to obtain Preparation 7e.

MS: (M+H)+=761.2.

Preparation 7f: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluoro-3-methoxy-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

13.5 g ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(4-fluoro-3-methoxy-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 6h) (13.5 mmol), 5.62 g 2-(4-methylpiperazin-1-yl)ethanol (39 mmol) and 10.22 g PPh3 (39 mmol) were dissolved in 250 mL dry toluene, then 10.22 g ditertbutyl azodicarboxylate (39 mmol) was added. The mixture was stirred at 50° C. under N2 until no further conversion was observed. The toluene was evaporated under reduced pressure and the residue was purified via flash chromatography using EtOAc and MeOH as eluents to obtain Preparation 7f.

MS: (M+H)+=819.0.

Preparation 7g: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

9.86 g ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 6k) (6.46 mmol), 1.73 g 2-(4-methylpiperazin-1-yl)ethanol (12.0 mmol) and 3.15 g PPh3 (12.0 mmol) were dissolved in 40 mL dry toluene, then 2.76 g ditertbutyl azodicarboxylate (12.0 mmol) was added. The mixture was stirred at 50° C. under N2 until no further conversion was observed. Toluene was evaporated under reduced pressure and the residue was purified via flash chromatography using EtOAc and MeOH as eluents to obtain Preparation 7g.

MS: (M+H)+=723.2.

Preparation 7h: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

6.60 g ethyl (2R)-2-[(5Sa)-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 6m) (10.87 mmol), 2.88 g 2-(4-methylpiperazin-1-yl)ethanol (20 mmol) and 5.25 g PPh3 (20 mmol) were dissolved in 450 mL dry toluene, then 4.61 g ditertbutyl azodicarboxylate (20 mmol) was added. The mixture was stirred at 50° C. under N2 until no further conversion was observed. The toluene was evaporated under reduced pressure and the residue was purified via flash chromatography using EtOAc and MeOH as eluents to obtain Preparation 7h.

MS: (M+H)+=733.2.

Preparation 7i: Ethyl (2R)-2-[6-(5-chloro-2-furyl)-5-(5Sa)-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(4-methoxyphenyl)methoxy]phenyl]propanoate

5.30 g ethyl (2R)-2-[6-[5-chloro-2-furyl)-5-(5Sa)-(3-chloro-4-hydroxy-2-methyl-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(4-methoxyphenyl)methoxy]phenyl]propanoate (Preparation 6f) (7.5 mmol), 2.16 g 2-(4-methylpiperazin-1-yl)ethanol (15 mmol) and 3.93 g PPh3 (15 mmol) were dissolved in 30 mL dry toluene, then 3.45 g ditertbutyl azodicarboxylate (15 mmol) was added. The mixture was stirred at 50° C. under N2 until no further conversion was observed. The toluene was evaporated under reduced pressure and the residue was purified via flash chromatography using EtOAc and MeOH as eluents to obtain Preparation 7i.

MS: (M+H)+=831.0.

Preparation 7j: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(3,4-difluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

6.85 g ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(3,4-difluorophenyl) thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 6p) (10.06 mmol), 2.90 g 2-(4-methylpiperazin-1-yl)ethanol (20.12 mmol) and 5.27 g PPh3 (20.12 mmol) were dissolved in 20 mL dry toluene, then 4.63 g ditertbutyl azodicarboxylate (20.12 mmol) was added. The mixture was stirred at 50° C. under N2 until no further conversion was observed. The toluene was evaporated under reduced pressure and the residue was purified via flash chromatography using EtOAc and MeOH as eluents to obtain Preparation 7j.

MS: (M+H)+=681.0.

Preparation 7k: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(2,3-difluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate Step A: 5-Bromo-4-chloro-6-(2,3-difluorophenyl)thieno[2,3-d]pyrimidine

9.39 g 5-bromo-4-chloro-6-iodo-thieno[2,3-d]pyrimidine (Preparation 1a) (25 mmol), 9.00 g 2-(2,3-difluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (37.5 mmol), 16.29 g Cs2CO3 (50 mmol), and 0.912 g Pd(dppf)Cl2 (1.25 mmol) were placed in a 250 mL flask. 100 mL THF and 50 mL water were added, and then stirred at 70° C. under N2 until no further conversion was observed. The reaction mixture was extracted with EtOAc. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using DCM and MeOH as eluents.

1H NMR (500 MHz, DMSO-d6): 9.07 (s, 1H), 7.71 (m, 1H), 7.46 (m, 2H).

HRMS calculated for C12H4BrClF2N2S: 359.8935, found: 360.9013 (M+H).

Step B: Ethyl (2R)-2-[5-bromo-6-(2,3-difluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

8.3 g 5-bromo-4-chloro-6-(2,3-difluorophenyl)thieno[2,3-d]pyrimidine (23 mmol), 7.48 g ethyl (2R)-2-hydroxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 3ab-(R)) (25.4 mmol) and 26.23 g Cs2CO3 (80.5 mmol) were placed in a 250 mL flask. 100 mL tert-butanol was added and the mixture was stirred at 60° C. under N2 until no further conversion was observed. The reaction mixture was diluted with brine, the pH was set between 6-7 with 2 M HCl, and then it was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain the product of Step B as a mixture of diastereoisomers.

1H NMR (500 MHz, DMSO-d6): 8.71 (d, 1H), 7.69 (m, 1H), 7.43 (m, 3H), 7.19 (m, 1H), 7.07 (m, 1H), 6.89 (t, 1H), 5.83/5.71 (dd, 1H), 5.60/5.56 (t, 1H), 4.15 (m, 2H), 3.75-3.18 (m, 4H), 1.99-1.56 (m, 4H), 1.82 (m, 2H), 1.15/1.16 (t, 3H).

HRMS calculated for C28H25BrF2N2O5S: 618.0636, found: 619.0695 (M+H).

Step C: Ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(2,3-difluoro phenyl)thieno[2,3-dipyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

8.75 g ethyl (2R)-2-[(5Sa)-5-bromo-6-(2,3-difluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (14.1 mmol) and 4.92 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (18.3 mmol) were dissolved in 50 mL THF, then 6.11 g Cs2CO3 (18.8 mmol) dissolved in 20 mL water was added. Then 0.5 g AtaPhos (0.7 mmol) was added, and the mixture was stirred under N2 at reflux temperature until no further conversion was observed. The reaction mixture was diluted with brine and extracted with DCM. The organic combined layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereoisomers were separated via flash chromatography using heptane and EtOAc as eluents. The diastereoisomer pair eluting later was collected as the product of Step C.

1H NMR (500 MHz, DMSO-d6, 1:1 mixture of diastereomers): 10.24 (br s, 1H), 8.66/8.65 (s, 1H), 7.48 (m, 1H), 7.22 (m, 1H), 7.13 (m, 2H), 7.08 (d, 1H), 7.01 (d, 1H), 6.89 (d, 1H), 6.74 (t, 1H), 6.38/6.32 (d, 1H), 5.55 (m, 1H), 5.45 (dd, 1H), 4.04 (m, 2H), 3.68/3.54 (m, 2H), 3.32 (dd, 1H), 2.47 (dd, 1H), 2.06-1.48 (m, 6H), 1.90/1.88 (s, 3H), 1.07/1.06 (t, 3H).

HRMS calculated for C35H31ClF2N2O6S: 680.1559, found: 681.1618/681.1624 (M+H).

Step D: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(3,4-difluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

6.49 g ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(2,3-difluorophenyl) thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (9.5 mmol), 2.75 g 2-(4-methylpiperazin-1-yl)ethanol (19 mmol) and 4.98 g PPh3 (19 mmol) were dissolved in 20 mL dry toluene, then 4.38 g ditertbutyl azodicarboxylate (19 mmol) was added. The mixture was stirred at 50° C. under N2 until no further conversion was observed. The toluene was evaporated under reduced pressure and the residue was purified via flash chromatography using EtOAc and MeOH as eluents to obtain Preparation 7k.

1H NMR (500 MHz, DMSO-d6, 1:1 mixture of diastereomers): 8.67 (s, 1H), 7.48 (m, 1H), 7.22-7.17 (m, 3H), 7.13 (t, 1H), 7.10 (d, 1H), 7.01 (d, 1H), 6.72 (t, 1H), 6.33/6.28 (d, 1H), 5.54/5.51 (m, 1H), 5.45 (dd, 1H), 4.18 (m, 2H), 4.03 (m, 2H), 3.68/3.54 (m, 2H), 3.02/2.99 (dd, 1H), 2.69 (t, 2H), 2.56 (m, 1H), 2.46 (br s, 4H), 2.22 (br s, 4H), 2.08 (s, 3H), 2.03-1.46 (m, 6H), 1.93/1.92 (s, 3H), 1.05 (t, 3H).

HRMS calculated for C42H45ClF2N2O6S: 806.2716, found: 807.2763/807.2793 (M+H).

Preparation 7l: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(dimethylamino) ethoxy]phenyl]-6-(2,3-difluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

6.85 g ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(2,3-difluorophenyl) thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 6t) (10.06 mmol), 1.793 g N,N-dimethylethanolamine (20.12 mmol) and 5.27 g PPh3 (20.12 mmol) were dissolved in 20 mL dry toluene, then 4.63 g ditertbutyl azodicarboxylate (20.12 mmol) was added. The mixture was stirred at 50° C. under N2 until no further conversion was observed. The toluene was evaporated under reduced pressure and the residue was purified via flash chromatography using EtOAc and MeOH as eluents to obtain Preparation 7l.

MS: (M+H)+=752.6.

Preparation 7m: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(piperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

862 mg ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(4-fluorophenyl)-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 6a) (1.3 mmol), 338 mg N-(2-hydroxyethyl)piperazine (2.6 mmol) and 682 mg PPh3 (2.6 mmol) were dissolved in 25 mL dry toluene, then 600 mg ditertbutyl azodicarboxylate (2.6 mmol) was added. The mixture was stirred at 50° C. under N2 until no further conversion was observed. Toluene was evaporated, then 5 mL Et2O was added, and the mixture was stirred and sonicated. The precipitated white crystals were filtered, washed with Et2O. The filtrate was concentrated under reduced pressure and purified via flash chromatography using DCM and MeOH as eluents to obtain Preparation 7m.

MS: (M+H)+=775.2.

Preparation 7n: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-ethylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

862 mg ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(4-fluorophenyl)-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 6a) (1.3 mmol), 411 mg 2-(4-ethylpiperazin-1-yl)ethanol (2.6 mmol) and 682 mg PPh3 (2.6 mmol) were dissolved in 25 mL dry toluene, then 600 mg ditertbutyl azodicarboxylate (2.6 mmol) was added. The mixture was stirred at 50° C. under N2 until no further conversion was observed. Toluene was evaporated, then 5 mL Et2O was added, and the mixture was stirred and sonicated. The precipitated white crystals were filtered, washed with Et2O (PPh3O). The filtrate was concentrated under reduced pressure and purified via flash chromatography using DCM and MeOH as eluents to obtain Preparation 7n.

MS: (M+H)+=802.4, 803.4.

Preparation 7o: Ethyl (2R)-2-[(5Ra)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

132.3 g ethyl (2R)-2-[(5Ra)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(4-fluorophenyl)-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 6w) (199.5 mmol), 43.17 g 2-(4-methylpiperazin-1-yl)ethanol (299.3 mmol) and 94.20 g PPh3 (359.1 mmol) were dissolved in 1 L dry toluene, then 78.09 g ditertbutyl azodicarboxylate (339.2 mmol) was added. The mixture was stirred at 50° C. under N2 until no further conversion was observed. 980 mL toluene was evaporated, then 500 mL Et2O was added, and the mixture was stirred and sonicated. The precipitated white crystals were filtered, washed with Et2O to give 65.9 g pure triphenylphosphineoxide. The filtrate was concentrated under reduced pressure and purified via flash chromatography using EtOAc and MeOH as eluents to obtain Preparation 7o.

MS: (M+H)+=789.2.

Preparation 7p: Ethyl (2S)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

132.3 g ethyl (2S)-2-[5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(4-fluorophenyl)-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 6x) (199.5 mmol), 43.17 g 2-(4-methylpiperazin-1-yl)ethanol (299.3 mmol) and 94.20 g PPh3 (359.1 mmol) were dissolved in 1 L dry toluene, then 78.09 g ditertbutyl azodicarboxylate (339.2 mmol) was added. The mixture was stirred at 50° C. under N2 until no further conversion was observed. 980 mL toluene was evaporated, then 500 mL Et2O was added, and the mixture was stirred and sonicated. The precipitated white crystals were filtered, washed with Et2O to give 65.9 g pure triphenylphosphineoxide. The filtrate was concentrated under reduced pressure and purified via flash chromatography using EtOAc and MeOH as eluents to obtain Preparation 7p.

MS: (M+H)+=789.2.

Preparation 8a: Ethyl (2R)-2-[(5Sa)-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate

199.5 mmol ethyl (2R)-2-[(5Sa)-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]-phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yl-oxyphenyl)-propanoate (Preparation 7a) was dissolved in 1 L EtOH, then 1 L 1.25 M HCl in EtOH was added and the mixture was stirred at room temperature until no further conversion was observed. Most of the EtOH was evaporated, then Et2O was added and the precipitated HCl salt (white solid) was filtered, washed with Et2O. The HCl salt was carefully treated with saturated NaHCO3 solution, extracted with DCM, the combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure to give Preparation 8a.

1H NMR (400 MHz, DMSO-d6): 9.53 (br s, 1H), 8.60 (s, 1H), 7.30 (m, 2H), 7.28 (d, 1H), 7.21 (m, 2H), 7.16 (d, 1H), 6.97 (t, 1H), 6.72 (d, 1H), 6.53 (t, 1H), 6.20 (d, 1H), 5.46 (dd, 1H), 4.22 (m, 2H), 4.04 (m, 2H), 2.92 (dd, 1H), 2.75 (m, 2H), 2.53 (br s, 4H), 2.44 (dd, 1H), 2.36 (br s, 4H), 2.17 (s, 3H), 1.88 (s, 3H), 1.06 (t, 3H).

HRMS calculated for C37H38ClFN4O5S: 704.2235, found: 705.2288 (M+H).

Preparation 8b: Ethyl (2R)-2-[(5Sa)-[3-chloro-4-(2-dimethylaminoethyloxy)-2-methyl-phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl) propanoate

5.60 mmol ethyl (2R)-2-[(5Sa)-5-[3-chloro-4-(2-dimethylaminoethyloxy)-2-methyl-phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 7b) was dissolved in 40 mL EtOH, then 20 mL 1.25 M HCl in EtOH was added and the mixture was stirred until no further conversion was observed. Water and saturated NaHCO3 solution were added carefully and the mixture was extracted with DCM, the combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using DCM and EtOAc as eluents to obtain Preparation 8b.

1H NMR (500 MHz, DMSO-d6): 9.53 (br s, 1H), 8.61 (s, 1H), 7.30 (m, 2H), 7.29 (d, 1H), 7.31 (m, 2H), 7.16 (d, 1H), 6.97 (m, 1H), 6.71 (dm, 1H), 6.52 (m, 1H), 6.18 (dm, 1H), 5.46 (dd, 1H), 4.20 (t, 2H), 4.04 (m, 2H), 2.92 (dd, 1H), 2.69 (t, 2H), 2.43 (dd, 1H), 2.22 (s, 6H), 1.88 (s, 3H), 1.06 (t, 3H).

HRMS calculated for C34H33ClFN3O5S: 649.1813, found: 650.1887 (M+H).

Preparation 8c: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(5-fluoro-2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate

184 mmol ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(5-fluoro-2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 7c) was dissolved in 1 L EtOH, then 1 L 1.25 M HCl in EtOH was added and the mixture was stirred at room temperature until no further conversion was observed. Most of the EtOH was evaporated, then Et2O was added and the precipitated HCl salt (white solid) was filtered, washed with Et2O. The HCl salt was carefully treated with saturated NaHCO3 solution, extracted with DCM, the combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using DCM and MeOH as eluents to obtain Preparation 8c.

1H NMR (500 MHz, DMSO-d6): 9.55 (s, 1H), 8.58 (s, 1H), 7.25 (s, 2H), 6.99 (t, 1H), 6.72 (d, 1H), 6.59 (t, 1H), 6.23 (d, 1H), 5.88 (dd, 1H), 5.72 (t, 1H), 5.47 (dd, 1H), 4.27 (t, 2H), 4.04 (m, 2H), 2.95 (dd, 1H), 2.77 (t, 2H), 2.53 (br s, 4H), 2.35 (dd, 1H), 2.30 (br s, 4H), 2.13 (s, 3H), 1.97 (s, 3H), 1.06 (t, 3H).

HRMS calculated for C35H36ClFN4O6S: 694.2028, found: 695.2106 (M+H).

Preparation 8d: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-4-(2-dimethylaminoethyloxy)-2-methyl-phenyl]-6-(5-fluoro-2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate

30 mL 1.25 M HCl in EtOH was added to 1.5 mmol ethyl (2R)-2-[(5Sa)-5-[3-chloro-4-(2-dimethylaminoethyloxy)-2-methyl-phenyl]-6-(5-fluoro-2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 7d) and the mixture was stirred until no further conversion was observed. The reaction mixture was carefully diluted with saturated NaHCO3 solution and the mixture was extracted with DCM, the combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using EtOAc and MeOH as eluents to obtain Preparation 8d.

1H NMR (500 MHz, DMSO-d6): 9.56 (br s, 1H), 8.58 (s, 1H), 7.25 (s, 2H), 6.99 (td, 1H), 6.72 (dd, 1H), 6.59 (td, 1H), 6.23 (dd, 1H), 5.88 (dd, 1H), 5.71 (t, 1H), 5.48 (dd, 1H), 4.25 (m, 2H), 4.04 (m, 2H), 2.96 (dd, 1H), 2.71 (t, 2H), 2.35 (dd, 1H), 2.23 (s, 6H), 1.98 (s, 3H), 1.06 (t, 3H).

HRMS calculated for C32H31ClFN3O6S: 639.1606, found: 640.1679 (M+H).

Preparation 8e: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl) propanoate

30 mmol ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 7e) was dissolved in 200 mL EtOH, then 200 mL 1.25 M HCl in EtOH was added and the mixture was stirred at room temperature until no further conversion was observed. Saturated NaHCO3 solution was added, and the reaction mixture was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using DCM and MeOH as eluents to obtain Preparation 8e.

1H NMR (500 MHz, DMSO-d6): 9.55 (s, 1H), 8.58 (s, 1H), 7.80 (d, 1H), 7.26 (d, 1H), 7.24 (d, 1H), 6.99 (t, 1H), 6.72 (d, 1H), 6.60 (t, 1H), 6.53 (dd, 1H), 6.24 (d, 1H), 5.69 (d, 1H), 5.48 (dd, 1H), 4.28 (t, 2H), 4.04 (m, 2H), 2.95 (dd, 1H), 2.78 (t, 2H), 2.51 (br s, 4H), 2.34 (dd, 1H), 2.31 (br s, 4H), 2.13 (br s, 3H), 1.96 (s, 3H), 1.06 (t, 3H).

HRMS calculated for C35H37ClN4O6S: 676.2122, found: 677.2194 (M+H).

Preparation 8f: Ethyl (2R)-2-[(5Sa)-6-(5-chloro-2-furyl)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate

200 mL 1.25 M HCl in EtOH was added to 7 mmol ethyl (2R)-2-[6-(5-chloro-2-furyl)-5-(5Sa)-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(4-methoxyphenyl)methoxy]phenyl]propanoate (Preparation 7i) and the mixture was stirred at 80° C. until no further conversion was observed. Saturated NaHCO3 solution was added to the reaction mixture, and it was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via flash chromatography using DCM and MeOH as eluents to obtain Preparation 8f.

1H NMR (500 MHz, DMSO-d6): 9.56 (br s, 1H), 8.59 (s, 1H), 7.25 (s, 2H), 6.99 (t, 1H), 6.72 (d, 1H), 6.59 (t, 1H), 6.55 (d, 1H), 6.23 (d, 1H), 5.74 (d, 1H), 5.48 (dd, 1H), 4.28 (t, 2H), 4.04 (m, 2H), 2.95 (dd, 1H), 2.79 (t, 2H), 2.58 (br s, 4H), 2.44 (br s, 4H), 2.35 (dd, 1H), 2.23 (br s, 3H), 1.96 (s, 3H), 1.06 (t, 3H).

HRMS calculated for C35H36Cl2N4O6S: 710.1733, found: 711.1797 (M+H).

Preparation 8g: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluoro-3-methoxy-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate

19 mmol ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluoro-3-methoxy-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 7f) was dissolved in 300 mL EtOH, then 150 mL 1.25 M HCl in EtOH was added and the mixture was stirred at room temperature until no further conversion was observed. Saturated NaHCO3 solution was added and the mixture was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using DCM and MeOH as eluents to obtain Preparation 8g.

1H NMR (500 MHz, DMSO-d6): 9.57 (br s, 1H), 8.61 (s, 1H), 7.31 (d, 1H), 7.24 (dd, 1H), 7.19 (d, 1H), 6.97 (td, 1H), 6.93 (ddd, 1H), 6.86 (dd, 1H), 6.71 (d, 1H), 6.53 (t, 1H), 6.16 (d, 1H), 5.46 (dd, 1H), 4.23 (m, 2H), 4.05 (m, 2H), 3.57 (s, 3H), 2.95 (dd, 1H), 2.73 (m, 2H), 2.72 (br s, 4H), 2.68 (br s, 4H), 2.41 (dd, 1H), 2.10 (s, 3H), 1.88 (s, 3H), 1.07 (t, 3H).

HRMS calculated for C38H40ClFN4O6S: 734.2341, found: 735.2406 (M+H).

Preparation 8h: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate

6 mmol ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 7g) was dissolved in 100 mL EtOH, then 40 mL 1.25 M HCl in EtOH was added and the mixture was stirred at room temperature until no further conversion was observed. Saturated NaHCO3 solution was added and the reaction was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using DCM and MeOH as eluents to obtain Preparation 8h.

1H NMR (500 MHz, DMSO-d6): 9.53 (s, 1H), 8.53 (s, 1H), 7.21 (d, 1H), 7.18 (d, 1H), 6.99 (t, 1H), 6.72 (d, 1H), 6.58 (t, 1H), 6.22 (d, 1H), 5.42 (dd, 1H), 4.25 (m, 2H), 4.02 (m, 2H), 2.90 (dd, 1H), 2.76 (m, 2H), 2.67 (m, 1H), 2.60 (m, 1H), 2.49 (br s, 4H), 2.41 (dd, 1H), 2.27 (br s, 4H), 2.11 (s, 3H), 2.01 (s, 3H), 1.17 (t, 3H), 1.05 (t, 3H).

HRMS calculated for C33H39ClFN4O5S: 638.2330, found: 639.2377 (M+H).

Preparation 8i: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate

10 mmol ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 7h) was dissolved in 100 mL EtOH, then 40 mL 1.25 M HCl in EtOH was added and the mixture was stirred at room temperature until no further conversion was observed. The most of the EtOH was evaporated then saturated NaHCO3 solution was added and the mixture was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via flash chromatography using DCM and MeOH as eluents to obtain Preparation 8i.

1H NMR (500 MHz, DMSO-d6): 9.53 (s, 1H), 8.62 (s, 1H), 7.24 (d, 1H), 7.19 (d, 1H), 6.97 (m, 1H), 6.70 (dm, 1H), 6.52 (m, 1H), 6.05 (dm, 1H), 5.41 (dd, 1H), 4.25 (t, 2H), 4.05 (m, 2H), 2.97 (dd, 1H), 2.76 (m, 1H), 2.74 (m, 1H), 2.51 (br s, 4H), 2.42 (dd, 1H), 2.26 (br s, 4H), 2.11 (s, 3H), 2.10 (s, 3H), 2.03 (s, 3H), 1.08 (t, 3H).

HRMS calculated for C34H37ClN4O5S: 648.2173, found: 649.2275 (M+H).

Preparation 8j: Ethyl (2R)-2-[5-[5-chloro-4-methyl-6-[2-(4-methylpiperazin-1-yl)ethoxy]-3-pyridyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (mixture of diastereoisomers) Step A: Ethyl (2R)-2-[5-[5-chloro-4-methyl-6-[2-(4-methylpiperazin-1-yl)ethoxy]-3-pyridyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

1.504 g ethyl (2R)-2-[5-bromo-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 4a) (2.50 mmol) and 1.052 g 1-[2-[[3-chloro-4-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-pyridyl]oxy]ethyl]-4-methyl-piperazine (Preparation 5q) (2.66 mmol) were dissolved in 15 mL THF, then 1.63 g Cs2CO3 (5.00 mmol) dissolved in 5 mL water was added. Then 177 mg AtaPhos (0.25 mmol) was added, and the mixture was stirred under nitrogen at reflux temperature until no further conversion was observed. Then the mixture was diluted with brine, extracted with DCM, the combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure, then purified via flash chromatography using EtOAc and MeOH as eluents.

Step B: Ethyl (2R)-2-[5-[5-chloro-4-methyl-6-[2-(4-methylpiperazin-1-yl)ethoxy]-3-pyridyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl) propanoate (mixture of diastereoisomers)

The obtained ethyl (2R)-2-[5-[5-chloro-4-methyl-6-[2-(4-methylpiperazin-1-yl)ethoxy]-3-pyridyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate was dissolved in 50 mL EtOH, then 10 mL 1.25 M HCl in EtOH was added and the mixture was stirred at room temperature until no further conversion was observed. Saturated NaHCO3 solution was added carefully and the mixture was extracted with DCM, the combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using DCM and MeOH as eluents to give Preparation 8j as a mixture of distereoisomers.

1H NMR (400 MHz, DMSO-d6): 9.57 (br s, 1H), 8.65/8.64 (s, 1H), 8.07/7.68 (s, 1H), 7.37-7.31 (m, 2H), 7.27-7.22 (m, 2H), 6.98/6.96 (td, 1H), 6.72/6.70 (dd, 1H), 6.54/6.48 (td, 1H), 6.29/6.05 (dd, 1H), 5.55/5.42 (dd, 1H), 4.60-4.41 (m, 2H), 4.07-4.01 (m, 2H), 3.05/2.92 (dd, 1H), 2.72/2.69 (t, 2H), 2.48-2.12 (m, 9H), 2.09 (s, 3H), 2.08/1.90 (s, 3H), 1.10/1.05 (t, 3H).

MS (M+H): 706.2.

Preparation 8k: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(3,4-difluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate

7.85 g ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(3,4-difluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 7j) (9.72 mmol) was dissolved in 70 mL EtOH, then 50 mL 1.25 M HCl in EtOH was added and the mixture was stirred at room temperature until no further conversion was observed. The most of the EtOH was evaporated then water and saturated NaHCO3 solution were added and the mixture was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using DCM and MeOH as eluents to obtain Preparation 8k.

1H NMR (500 MHz, DMSO-d6): 9.54 (s, 1H), 8.63 (s, 1H), 7.46 (m, 1H), 7.32 (m, 1H), 7.30 (d, 1H), 7.18 (d, 1H), 7.11 (m, 1H), 6.97 (t, 1H), 6.71 (d, 1H), 6.53 (t, 1H), 6.19 (d, 1H), 5.46 (dd, 1H), 4.23 (m, 2H), 4.04 (m, 2H), 2.92 (dd, 1H), 2.73 (m, 2H), 2.50 (br s, 4H), 2.43 (dd, 1H), 2.25 (br s, 4H), 2.10 (s, 3H), 1.89 (s, 3H), 1.06 (t, 3H).

HRMS calculated for C37H37ClF2N4O5S: 722.2141, found: 723.2211 (M+H).

Preparation 8l: Ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-methoxy-2-methyl-phenyl)-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate Step A: Ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-methoxy-2-methyl-phenyl)-6-(4-fluorophenyl) thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

12.47 g ethyl (2R)-2-[5-bromo-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetra-hydropyran-2-yloxyphenyl)propanoate (Preparation 4a) (20.7 mmol) and 8.20 g 2-(3-chloro-4-methoxy-2-methyl-phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (Preparation 5d) (29.0 mmol) were dissolved in 145 mL THF, then 13.50 g Cs2CO3 (41.50 mmol) dissolved in 48 mL water was added. Then 1.17 g AtaPhos (1.66 mmol) was added, and the mixture was stirred under nitrogen at reflux temperature until no further conversion was observed. Then most of the volatiles were evaporated and the residue was diluted with brine. The pH was set to 6 with 2 M HCl, and the mixture was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure, then purified via flash chromatography using heptane and EtOAc as eluents. The diastereoisomer pair eluting later was collected as ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-methoxy-2-methyl-phenyl)-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate.

Step B: Ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-methoxy-2-methyl-phenyl)-6-(4-fluorophenyl) thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate

The product of Step A was dissolved in 300 mL EtOH, then 150 mL 1.25 M HCl in EtOH was added and the mixture was stirred at room temperature until no further conversion was observed. Most of the EtOH was evaporated, then saturated NaHCO3 solution was added carefully, and the mixture was extracted with DCM, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using DCM and MeOH as eluents to give Preparation 8l.

1H NMR (500 MHz, DMSO-d6): 9.52 (s, 1H), 8.61 (s, 1H), 7.30 (m, 3H), 7.22 (t, 2H), 7.14 (d, 1H), 6.97 (t, 1H), 6.71 (d, 1H), 6.53 (t, 1H), 6.18 (d, 1H), 5.45 (dd, 1H), 4.04 (m, 2H), 3.90 (s, 3H), 2.91 (dd, 1H), 2.44 (dd, 1H), 1.89 (s, 3H), 1.06 (t, 3H).

HRMS calculated for C31H26ClFN2O5S: 592.1235; found 593.1307 (M+H).

Preparation 8m: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(2,3-difluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate

9.72 mmol ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(2,3-difluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 7k) was dissolved in 70 mL EtOH, then 60 mL 1.25 M HCl in EtOH was added and the mixture was stirred at room temperature until no further conversion was observed. Ice and saturated NaHCO3 solution were added and the mixture was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using EtOAc and MeOH as eluents to obtain Preparation 8m.

1H NMR (500 MHz, DMSO-d6): 9.54 (br s, 1H), 8.66 (s, 1H), 7.48 (m, 1H), 7.22-7.18 (m, 3H), 7.09 (m, 1H), 6.97 (t, 1H), 6.72 (d, 1H), 6.52 (t, 1H), 6.21 (d, 1H), 5.47 (dd, 1H), 4.18 (m, 2H), 4.02 (m, 2H), 2.86 (dd, 1H), 2.72 (m, 2H), 2.53 (dd, 1H), 2.51 (br s, 4H), 2.39 (br s, 4H), 2.19 (br s, 3H), 1.94 (s, 3H), 1.04 (t, 3H).

HRMS calculated for C37H37ClF2N4O5S: 722.2141; found 723.2177 (M+H).

Preparation 8n: Ethyl (2R)-2-[(5Sa)-[3-chloro-2-methyl-4-[2-(dimethylamino)ethoxy]phenyl]-6-(2,3-difluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl) propanoate

7.85 g ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-dimethylaminoethoxy]phenyl]-6-(2,3-difluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 7l) (9.72 mmol) was dissolved in 70 mL EtOH, then 50 mL 1.25 M HCl in EtOH was added and the mixture was stirred at room temperature until no further conversion was observed. The most of the EtOH was evaporated then water and saturated NaHCO3 solution were added and the mixture was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using DCM and MeOH as eluents to obtain Preparation 8n.

MS: (M+H)+=667.8.

Preparation 8o: Ethyl (2R)-2-[(5Sa)-[3-chloro-2-methyl-4-[2-(piperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl) propanoate

900 mg ethyl (2R)-2-[(5Sa)-[3-chloro-2-methyl-4-[2-(piperazin-1-yl)ethoxy]-phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yl-oxyphenyl)-propanoate (Preparation 7m) was dissolved in 5 mL EtOH, then 5 mL 1.25 M HCl in EtOH was added and the mixture was stirred at room temperature until no further conversion was observed. Most of the EtOH was evaporated, then Et2O was added and the precipitated HCl salt (white solid) was filtered, washed with Et2O. The HCl salt was carefully treated with saturated NaHCO3 solution, extracted with DCM, the combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure to give Preparation 8o.

MS: (M+H)+=691.0.

Preparation 8p: Ethyl (2R)-2-[(5Sa)-[3-chloro-2-methyl-4-[2-(4-ethylpiperazin-1-yl) ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate

952 mg ethyl (2R)-2-[(5Sa)-[3-chloro-2-methyl-4-[2-(4-ethylpiperazin-1-yl)ethoxy]-phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yl-oxyphenyl)-propanoate (Preparation 7n) was dissolved in 5 mL EtOH, then 5 mL 1.25 M HCl in EtOH was added and the mixture was stirred at room temperature until no further conversion was observed. Most of the EtOH was evaporated, then Et2O was added and the precipitated HCl salt (white solid) was filtered, washed with Et2O. The HCl salt was carefully treated with saturated NaHCO3 solution, extracted with DCM, the combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure to give Preparation 8p.

MS: (M+H)+=719.2.

Preparation 8q: Ethyl (2R)-2-[(5Ra)-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate

199.5 mmol ethyl (2R)-2-[(5Ra)-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]-phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yl-oxyphenyl)-propanoate (Preparation 7o) was dissolved in 1 L EtOH, then 1 L 1.25 M HCl in EtOH was added and the mixture was stirred at room temperature until no further conversion was observed. Most of the EtOH was evaporated, then Et2O was added and the precipitated HCl salt (white solid) was filtered, washed with Et2O. The HCl salt was carefully treated with saturated NaHCO3 solution, extracted with DCM, the combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure to give Preparation 8q.

MS: (M+H)=705.2.

Preparation 8r: Ethyl (2S)-2-[(5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate

199.5 mmol ethyl (2S)-2-[(5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]-phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yl-oxyphenyl)-propanoate (Preparation 7p) was dissolved in 1 L EtOH, then 1 L 1.25 M HCl in EtOH was added and the mixture was stirred at room temperature until no further conversion was observed. Most of the EtOH was evaporated, then Et2O was added and the precipitated HCl salt (white solid) was filtered, washed with Et2O. The HCl salt was carefully treated with saturated NaHCO3 solution, extracted with DCM, the combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure to give Preparation 8r.

MS: (M+H)=705.2.

Unless otherwise specified, most of the compounds of Preparation 9aa to 9er were obtained using General Procedures 9A to 9H described below.

General Procedure 9A

The appropriate acetal (1.0 eq.) was stirred with 2N HCl solution (3 mL/mmol) at 60° C. until no further conversion was observed. Reaction mixture was cooled to 0° C., then NaOH (5.7 eq.) was added portionwise. The pH was adjusted to 8 using 10% K2CO3 solution, then sodium borohydride (2.0 eq.) was added portionwise keeping the temperature under 5° C. and the mixture was stirred for 30 min at 0° C. Reaction mixture was extracted with EtOAc, the combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents.

General Procedure 9B

The appropriate acetal (1.0 eq.) was stirred with 1N HCl solution (3 mL/mmol) at 50° C. for 45 min. Reaction mixture was cooled to 0° C., then NaOH (2.85 eq.) was added portionwise. The pH was adjusted to 8 using 10% K2CO3 solution, then sodium borohydride (2.0 eq.) was added portionwise keeping the temperature under 5° C. and stirred for 30 min at 0° C. Reaction mixture was extracted with EtOAc, the combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents.

General Procedure 9C

To the mixture of the appropriate amidine hydrochloride (1.2 eq.) and (E)-4-(dimethylamino)-1,1-dimethoxy-but-3-en-2-one (Preparation 9a1, 1.0 eq.) in dry methanol (0.5 mL/mmol) sodium methoxide (1.2 eq.) was added portionwise and the mixture was stirred at 75° C. for 2 h. The reaction mixture was cooled and concentrated under reduced pressure. To the residue water was added and it was extracted with DCM. The combined organic layers were dried over MgSO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents.

General Procedure 9D

To the mixture of the appropriate hydrazine hydrochloride (1.2 eq.) and (E)-4-(dimethylamino)-1,1-dimethoxy-but-3-en-2-one (Preparation 9a1, 1.0 eq.) in dry methanol (0.5 mL/mmol) sodium methoxide (1.2 eq.) was added portionwise and the mixture was stirred at 75° C. for 2 h. The reaction mixture was cooled and concentrated under reduced pressure. To the residue water was added and it was extracted with DCM. The combined organic phases were dried over MgSO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents.

General Procedure 9E

To the solution of the appropriate methylsulfonyl derivative (Preparation 9a3 1.0 eq.) in dry acetonitrile (3 ml/mmol) K2CO3 (2.0 eq.) and the appropriate amine (1.5 eq.) were added, and stirred at 70° C. until no further conversion was observed. The reaction mixture was cooled, filtered, the precipitate was washed with EtOAc, then the filtrate was concentrated under reduced pressure. Crude product was purified via flash chromatography using heptane and EtOAc as eluents.

General Procedure 9F

To the solution of 1H-pyrazole (1.0 eq.) in DMF (0.5 mL/mmol) KOH (1.0 eq.) was added, then it was cooled to 0° C., and the appropriate halide was added (1.0 eq.) dropwise. The mixture was stirred at room temperature until no further conversion was observed. The mixture was diluted with DCM and washed with water. The organic layer was dried over MgSO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents.

General Procedure 9G

To the suspension of sodium hydride (1.10 eq.) in tetrahydrofurane (0.20 mL/mmol) was added the solution of pyrazole (1.0 eq.) in tetrahydrofurane (0.12 mL/mmol) dropwise, while the temperature was kept under 20° C. After the mixture was stirred at room temperature for 30 minutes, the appropriate halide (1.20 eq.) was added and the mixture was stirred further at same temperature for 16 hours. Next, the reaction mixture was refluxed for 15 hours. After completion the resulting precipitate was filtered off, the filtrate was concentrated then the residue was poured onto a mixture of water and ethyl acetate. The phases were separated, and the aqueous layer was extracted with ethyl acetate. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via distillation.

General Procedure 9H

To the solution of appropriate alkyl pyrazole (1.0 eq.) in dry tetrahydrofurane (1.5 mL/mmol) n-butyllithium (1.10 eq.) was added dropwise at −70° C. The mixture was stirred further at same temperature for 30 minutes; afterwards allowed to warm up to 0° C. in approx. 30 minutes, and cooled in a dry ice bath. N,N-dimethylformamide (1.10 eq.) was added dropwise at −70° C., then the reaction mixture was stirred at room temperature overnight. The mixture was cooled to 15° C., and saturated ammonium chloride solution was added dropwise to the mixture at 15° C., then the mixture was poured into saturated ammonium chloride solution. The phases were separated, the aqueous layer was extracted with ethyl acetate. The combined organic layers were dried over Na2SO4, and concentrated under reduced pressure. The residue was used in the next step without further purification.

To the solution of the appropriate crude aldehyde (1.0 eq.) in ethanol (0.5 mL/mmol) sodium borohydride (1.30 eq.) was added portionwise at −15° C. then the reaction mixture was stirred at room temperature for 1 h. The mixture was poured onto crushed ice and stirred for 16 hours. The precipitate was filtered off, and the filtrate was concentrated under reduced pressure. The oily phase was separated, and the aqueous layer was extracted with ethyl acetate. The combined organic layers were dried over Na2SO4, and concentrated to dryness.

Preparation 9a1: (E)-4-(Dimethylamino)-1,1-dimethoxy-but-3-en-2-one

502.1 g 1,1-dimethoxypropan-2-one (4.25 mol) and 506.4 g 1,1-dimethoxy-N,N-dimethyl-methenamine (4.25 mol) were mixed in a 2 L flask and stirred at 105° C. for 3 hours. The formed MeOH was removed continuously via distillation. When MeOH formation stopped (at 65° C. head temperature) the reaction mixture was vacuum distilled (decreasing the pressure slowly to 30 mbar) to remove side products and unreacted starting materials. The crude product was distilled at 0.1 mbar. Fractions were collected between 107-118° C. head temperature (bath temperature 160-165° C.) to give a yellow oil.

1H NMR (500 MHz, DMSO-d6): 7.59 (d, 1H), 5.17 (d, 1H), 4.42 (s, 1H), 3.25 (s, 6H), 3.09 (s, 3H), 2.78 (s, 3H).

Preparation 9a2: 4-(Dimethoxymethyl)-2-methylsulfanyl-pyrimidine

198 g sodium methoxide (3.67 mmol) was dissolved in 3 L MeOH and cooled to 0° C. 322 g thiocarbamide (4.23 mol) was added portionwise and the mixture was stirred for 1 hour. Then 488 g (E)-4-(dimethylamino)-1,1-dimethoxy-but-3-en-2-one (Preparation 9a1) (2.82 mol) was added dropwise at 0° C., then it was heated to 70° C. for 4 hours. It was cooled to room temperature, 237 mL methyl iodide (3.81 mol) was added dropwise, keeping the temperature below 28° C., and the resulting mixture was stirred overnight at room temperature. It was filtered, the filtrate was concentrated under reduced pressure, diluted with EtOAc, washed with water and brine. The combined aqueous layers were extracted with EtOAc. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The residue was dissolved in 500 mL Et2O, filtered through a pad of silica, using Et2O as eluent. The filtrate was concentrated under reduced pressure to give a light brown oil.

1H NMR (400 MHz, DMSO-d6): 8.69 (d, 1H), 7.23 (d, 1H), 5.22 (s, 1H), 3.33 (s, 6H), 2.52 (s, 3H).

Preparation 9a3: 4-(Dimethoxymethyl)-2-methylsulfonyl-pyrimidine

To solution of 180 g 4-(dimethoxymethyl)-2-methylsulfanyl-pyrimidine (Preparation 9a2, 940 mmol) in 1.5 L methanol and 1.5 L H2O 752 g Oxone (potassium peroxymonosulfate, 1220 mmol) was added portionwise at −5° C., then stirred at 0° C. overnight. The reaction mixture was concentrated under reduced pressure to half volume using a 30° C. bath and then the mixture was filtered, and the precipitates were was washed with DCM. The filtrate was extracted with DCM. The combined organic layers were dried over MgSO4, filtered and concentrated under reduced pressure to give a light brown oil.

1H NMR (400 MHz, CDCl3): 8.98 (d, 1H), 7.97 (d, 1H), 5.36 (s, 1H), 3.47 (s, 6H), 3.39 (s, 3H).

Preparation 9a4: 2-Methylsulfonyl-4-(tetrahydropyran-2-yloxymethyl)pyrimidine Step A

To solution of 7.24 g (2-methylsulfanylpyrimidin-4-yl)methanol (Preparation 9aa, 47.5 mmol) and 30.0 g 3,4-dihydro-2H-pyran (357 mmol) in 150 mL DCM 452 mg of p-toluenesulfonic acid monohydrate (2.30 mmol) was added and it was stirred at room temperature for 2 h. The reaction mixture was diluted with DCM, then it was washed with water and saturated aq. NaHCO3. The organic layer was dried over Na2SO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and EtOAc as eluents to give 2-methylsulfanyl-4-(tetrahydropyran-2-yloxymethyl)pyrimidine.

MS: (M+H)+=241.2.

Step B

To solution of 11.4 g 2-methylsulfanyl-4-(tetrahydropyran-2-yloxymethyl)pyrimidine (47.5 mmol) in 500 mL DCM 24.6 g MCPBA (3-chloroperoxybenzoic acid, 143 mmol) was added portionwise at 0° C. and stirred at this temperature for 1 h. The precipitates were filtered off, and the filtrate was washed water and saturated aq. NaHCO3. The organic layer was dried over Na2SO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and EtOAc as eluents to give the title product.

1H NMR (400 MHz, CDCl3): 9.05 (d, 1H), 7.86 (d, 1H), 4.83 (d, 1H), 4.80 (m, 1H), 4.74 (d, 1H), 3.77 (m, 1H), 3.48 (m, 1H), 3.41 (s, 3H), 1.88-1.40 (m, 6H).

Preparation 9a5: 5-(Dimethoxymethyl)-1H-pyrazole

To the mixture of the 4.11 g hydrazine hydrochloride (60.0 mmol) and 8.66 g (E)-4-(dimethylamino)-1,1-dimethoxy-but-3-en-2-one (Preparation 9a1, 50.0 mmol) in dry methanol 3.241 g sodium methoxide (60.0 mmol) was added portionwise and the mixture was stirred at 50° C. for 45 min. The reaction mixture was cooled and concentrated under reduced pressure. To the residue water was added and it was extracted with DCM. The combined organic layers were dried over MgSO4 and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to give the title product.

1H NMR (400 MHz, CDCl3): 12.78 (br s, 1H), 7.68 (s, 1H), 6.22 (d, 1H), 5.37 (s, 1H), 3.24 (s, 6H).

Preparation 9aa: (2-Methylsulfanylpyrimidin-4-yl)methanol

Starting from 4-(dimethoxymethyl)-2-methylsulfanyl-pyrimidine (Preparation 9a2) using General Procedure 9A the title product was obtained as white crystals.

1H NMR (400 MHz, DMSO-d6): 8.61 (d, 1H), 7.25 (d, 1H), 5.63 (t, 1H), 4.49 (d, 2H), 2.49 (s, 3H).

Preparation 9ab: [2-(2-Methoxyethylsulfanyl)pyrimidin-4-yl]methanol Step A

1.51 g sodium methoxide (28.0 mmol) was dissolved in 15 mL MeOH and cooled to 0° C. 2.44 g thiocarbamide (32.0 mol) was added portionwise and the mixture was stirred for 1 hour. Then 3.46 g (E)-4-(dimethylamino)-1,1-dimethoxy-but-3-en-2-one (Preparation 9a1) (20.0 mol) was added dropwise at 0° C., then it was heated to 80° C. and stirred there for 2 hours. It was cooled to room temperature, 4.17 g 1-bromo-2-methoxy-ethane (30 mmol) was added and the mixture was stirred for 1 hour at 50° C., then overnight at room temperature. It was filtered, the filtrate was concentrated under reduced pressure, diluted with EtOAc, washed with water and brine. The organic layer was dried over Na2SO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and ethyl-acetate as eluents to give a light yellow oil (4-(dimethoxymethyl)-2-(2-methoxyethylsulfanyl)pyrimidine).

1H NMR (400 MHz, DMSO-d6): 8.68 (d, 1H), 7.24 (d, 1H), 5.23 (s, 1H), 3.59 (t, 2H), 3.33 (s, 6H), 3.32 (t, 2H), 3.28 (s, 3H).

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.60 (d, 1H), 7.25 (d, 1H), 5.63 (t, 1H), 4.48 (d, 2H), 3.57 (t, 2H), 3.29 (t, 2H), 3.27 (s, 3H).

Preparation 9ac: [2-(3-Methoxypropylsulfanyl)pyrimidin-4-yl]methanol Step A

1.51 g sodium methoxide (28.0 mmol) was dissolved in 15 mL MeOH and cooled to 0° C. 2.44 g thiocarbamide (32.0 mol) was added portionwise and the mixture was stirred for 1 hour. Then 3.46 g (E)-4-(dimethylamino)-1,1-dimethoxy-but-3-en-2-one (Preparation 9a1) (20.0 mol) was added dropwise at 0° C., then it was heated at 80° C. for 2 hours. It was cooled to room temperature, 4.59 g 1-bromo-3-methoxy-propane (30 mmol) was added and was stirred 1 hour at 50° C., then overnight at room temperature. It was filtered, the filtrate was concentrated under reduced pressure, diluted with EtOAc, washed with water and brine. The organic layer was dried over Na2SO4, filtered and concentrated under reduced pressure. The residue was purified using flash chromatography using heptane and ethyl-acetate as eluents to give a light yellow oil (4-(dimethoxymethyl)-2-(3-methoxypropylsulfanyl)pyrimidine).

1H NMR (400 MHz, DMSO-d6): 8.68 (d, 1H), 7.23 (d, 1H), 5.22 (s, 1H), 3.43 (t, 2H), 3.33 (s, 6H), 3.24 (s, 3H), 3.14 (m, 2H), 1.90 (m, 2H).

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.60 (d, 1H), 7.24 (d, 1H), 5.63 (t, 1H), 4.48 (d, 2H), 3.42 (t, 2H), 3.24 (s, 3H), 3.12 (t, 2H) 1.88 (m, 2H).

Preparation 9ad: (2-Ethoxypyrimidin-4-yl)methanol Step A

To the solution of 1500 mg 4-(dimethoxymethyl)-2-methylsulfonyl-pyrimidine (Preparation 9a3, 6.46 mmol) in 60 mL ethanol 527 mg sodium ethoxide (7.75 mmol) was added and stirred at room temperature for 1 h. The volatiles were evaporated under reduced pressure and the residue was purified via flash chromatography using heptane and EtOAc as eluents to give 4-(dimethoxymethyl)-2-ethoxy-pyrimidine.

MS: (M+H)+=199.2.

Step B

Starting from this material using General Procedure 9A the title product was obtained.

MS: (M+H)+=155.2

Preparation 9ae: (2-Isopropoxypyrimidin-4-yl)methanol Step A

To the solution of 1500 mg 4-(dimethoxymethyl)-2-methylsulfonyl-pyrimidine (Preparation 9a3, 6.46 mmol) in 50 mL propan-2-ol the solution of 310 mg sodium hydride (60%, 7.75 mmol) in 10 ml propan-2-ol was added and stirred at room temperature for 1 h. The volatiles were evaporated under reduced pressure and the residue was purified via flash chromatography using heptane and EtOAc as eluents to give 4-(dimethoxymethyl)-2-isopropoxy-pyrimidine.

MS: (M+H)+=213.2.

Step B

Starting from this material using General Procedure 9A the title product was obtained.

MS: (M+H)+=169.2

Preparation 9af: (2-Propoxypyrimidin-4-yl)methanol Step A

To the solution of 1500 mg 4-(dimethoxymethyl)-2-methylsulfonyl-pyrimidine (Preparation 9a3, 6.46 mmol) in 50 mL propan-1-ol the solution of 310 mg sodium hydride (60%, 7.75 mmol) in 10 ml propan-1-ol was added and stirred at room temperature for 1 h. The volatiles were evaporated under reduced pressure and the residue was purified via flash chromatography using heptane and EtOAc as eluents to give 4-(dimethoxymethyl)-2-propoxy-pyrimidine.

MS: (M+H)+=213.2.

Step B

Starting from this material using General Procedure 9A the title product was obtained.

MS: (M+H)+=169.2

Preparation 9ag: [2-(2-Methoxyethoxy)pyrimidin-4-yl]methanol Step A

2-Methoxyethanol (10 mL) was cooled to 0° C. and 413 mg of sodium hydride (60%, 10.33 mmol) was added portionwise, then 2.00 g 4-(dimethoxymethyl)-2-methylsulfonyl-pyrimidine (Preparation 9a3) (8.61 mmol) was added and stirred at room temperature for 1 h. The reaction mixture was concentrated under reduced pressure. To the residue water was added and it was extracted with DCM. The combined organic layers were dried over MgSO4 and concentrated under reduced pressure to give 4-(dimethoxymethyl)-2-(2-methoxyethoxy)pyrimidine.

MS: (M+H)+=229.2.

Step B

Starting from this material using General Procedure 9A the title product was obtained.

MS: (M+H)+=185.2

Preparation 9ah: [2-(2-Ethoxyethoxy)pyrimidin-4-yl]methanol Step A

20 mL 2-ethoxyethanol was cooled to 0° C., then 240 mg sodium hydride (6.00 mmol) was added portionwise and the mixture was stirred at this temperature for 15 min. The solution of 1.16 g 4-(dimethoxymethyl)-2-methylsulfonyl-pyrimidine (Preparation 9a3, 5.00 mmol) in 3 mL 2-ethoxyethanol was added, then cooling was removed and reaction mixture was stirred at room temperature for 2 h. Brine was added then the mixture was extracted with DCM. The combined organic layers were dried over MgSO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and EtOAc as eluents to give 4-(dimethoxymethyl)-2-(2-ethoxyethoxy)pyrimidine.

1H NMR (400 MHz, CDCl3): 8.54 (d, 1H), 7.17 (d, 1H), 5.18 (s, 1H), 4.53 (t, 2H), 3.82 (t, 2H), 3.59 (q, 2H), 3.42 (s, 6H), 1.22 (t, 3H).

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, CDCl3): 8.47 (d, 1H), 6.95 (d, 1H), 4.71 (br s, 2H), 4.56 (t, 2H), 3.84 (t, 2H), 3.62 (q, 2H), 1.25 (t, 3H).

Preparation 9ai: [2-(2,2,2-Trifluoroethoxy)pyrimidin-4-yl]methanol Step A

To the solution of 5.00 g 4-(dimethoxymethyl)-2-methylsulfonyl-pyrimidine (Preparation 9a3, 21.5 mmol) in 54 ml dry acetonitrile 5.95 g K2CO3 (43.1 mmol) and 3.24 g 2,2,2-trifluoroethanol (32.3 mmol) were added, and stirred at 60° C. until no further conversion was observed. The reaction mixture was cooled, filtered, the precipitate was washed with EtOAc, then the filtrate was concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to give 4-(dimethoxymethyl)-2-(2,2,2-trifluoroethoxy)pyrimidine.

1H NMR (400 MHz, DMSO-d6): 8.74 (d, 1H), 7.32 (d, 1H), 5.25 (s, 1H), 5.05 (q, 2H), 3.34 (s, 6H).

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.65 (d, 1H), 7.32 (d, 1H), 5.69 (t, 1H), 5.02 (q, 2H), 4.51 (d, 2H).

Preparation 9a1: [2-(3,3,3-Trifluoropropoxy)pyrimidin-4-yl]methanol Step A

To the solution of 2.00 g Preparation 9a3 (8.61 mmol) in acetonitrile 2.38 g K2CO3 (17.2 mmol), then 3,3,3-trifluoropropan-1-ol were added and the so obtained mixture was stirred for 10 h at 60° C. The reaction mixture was cooled, filtered and the filtrate concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and ethyl-acetate as eluents to give 4-(dimethoxymethyl)-2-(3,3,3-trifluoropropoxy) pyrimidine.

1H NMR (400 MHz, DMSO-d6): 8.68 (d, 1H), 7.22 (d, 1H), 5.22 (s, 1H), 4.53 (t, 2H), 3.33 (s, 6H), 2.83 (m, 2H).

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.59 (d, 1H), 7.22 (d, 1H), 5.63 (t, 1H), 4.49 (m, 4H), 2.81 (m, 2H).

Preparation 9ak: (2-Phenoxypyrimidin-4-yl)methanol Step A

To the solution of 1.50 g Preparation 9a3 (6.46 mmol) in 50 mL THF 2.14 g K2CO3 (15.5 mmol), then 729 mg of phenol (7.75 mmol) were added and the so obtained mixture was stirred for 3 days at room temperature. The reaction mixture was concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and ethyl-acetate as eluents to give 4-(dimethoxymethyl)-2-phenoxy-pyrimidine.

MS: (M+H)+=247.2.

Step B

Starting from this material using General Procedure 9A the title product was obtained.

MS: (M+H)+=203.2

Preparation 9a1: (2-Aminopyrimidin-4-yl)methanol Step A

To the stirred mixture of 2.29 g of guanidine hydrochloride (24.0 mmol) and 8 mL of methanol 1.30 g sodium methoxide (24.0 mmol) and 3.46 g Preparation 9a1 (20.0 mmol) were added, then stirred at 75° C. for 2 h. The reaction mixture was cooled, concentrated under reduced pressure, then 30 mL water was added. The formed precipitate was filtered, washed with water and dried to give 4-(dimethoxymethyl)pyrimidin-2-amine.

1H NMR (400 MHz, DMSO-d6): 8.26 (d, 1H), 6.71 (br s, 2H), 6.61 (d, 1H), 5.00 (s, 1H), 3.28 (s, 6H).

Step B

The solution of 5.01 g 4-(dimethoxymethyl)pyrimidin-2-amine (29.5 mmol) in 100 mL 2N aq. HCl was stirred at 60° C. for 5 h. Reaction mixture was cooled to 0° C., then 7.60 g NaOH (190 mmol) was added portionwise. The pH was adjusted to 8 using 10% K2CO3 solution, then 2.24 g sodium borohydride (59.0 mmol) was added portionwise keeping the temperature under 5° C. and stirred for 30 min at 0° C. The reaction mixture was extracted with EtOAc, the combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The crude product was purified via flash chromatography (MeOH-containing 1% NH3— and DCM).

1H NMR (400 MHz, DMSO-d6): 8.20 (d, 1H), 6.66 (d, 1H), 6.49 (br s, 2H), 5.35 (t, 1H), 4.30 (d, 2H).

Preparation 9am: [2-(Methylamino)pyrimidin-4-yl]methanol

To the 2M solution of methylamine in THF (3 mL) 232 mg 4-(dimethoxymethyl)-2-methylsulfonyl-pyrimidine (Preparation 9a3, 1.00 mmol) was added and it was stirred at room temperature for 1 h. The reaction mixture was concentrated under reduced pressure, the residue was diluted with EtOAc and washed with brine. The organic layer was dried over MgSO4 and concentrated under reduced pressure. To the residue 3 mL 2N HCl was added and it was stirred at 60° C. for 2 h. Than it was cooled to 0° C., the pH was adjusted to 9 using 2N NaOH solution, and then 76 mg sodium borohydride (2.0 mmol) was added and the mixture was stirred for 1 h. The reaction mixture was extracted with EtOAc, the combined organic layers were dried over MgSO4 and concentrated under reduced pressure to give the title product.

MS: (M+2H)+=141.4.

Preparation 9an: [2-(Dimethylamino)pyrimidin-4-yl]methanol

To 3 mL dimethylamine solution (2M in THF, 6 mmol) 232 mg 4-(dimethoxymethyl)-2-methylsulfonyl-pyrimidine (Preparation 9a3, 1.00 mmol) was added and it was stirred at room temperature for 1 h. The reaction mixture was concentrated under reduced pressure, the residue was diluted with EtOAc and washed with brine. The organic layer was dried over MgSO4 and concentrated under reduced pressure. To the residue 3 mL 2N HCl was added and it was stirred at 60° C. for 2 h. It was cooled to 0° C., the pH was adjusted to 9 using 2N NaOH solution, and then 76 mg sodium borohydride (2.0 mmol) was added and stirred for 1 h. The reaction mixture was extracted with EtOAc, and the combined organic layers were dried over MgSO4 and concentrated under reduced pressure to give the title product.

MS: (M+H)+=154.4.

Preparation 9ao: [2-(2-Methoxyethylamino)pyrimidin-4-yl]methanol Step A

Starting from 4-(dimethoxymethyl)-2-methylsulfonyl-pyrimidine (Preparation 9a3) and 2-methoxyethanamine using General Procedure 9E 4-(dimethoxymethyl)-N-(2-methoxyethyl)pyrimidin-2-amine was obtained.

1H NMR (400 MHz, CDCl3): 8.32 (d, 1H), 6.73 (d, 1H), 5.61 (br s, 1H), 5.08 (s, 1H), 3.62 (m, 2H) 3.56 (m, 2H), 3.38 (s, 6H), 3.36 (s, 3H).

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, CDCl3): 8.22 (d, 1H), 6.48 (d, 1H), 5.64 (br s, 1H), 4.57 (s, 2H), 3.65 (m, 2H) 3.58 (m, 2H), 3.49 (s, 1H), 3.39 (s, 3H).

Preparation 9ap: [2-[2-Methoxyethyl(methyl)amino]pyrimidin-4-yl]methanol Step A

Starting from 4-(dimethoxymethyl)-2-methylsulfonyl-pyrimidine (Preparation 9a3) and 2-methoxy-N-methyl-ethanamine as amine reagent using General Procedure 9E 4-(dimethoxymethyl)-N-(2-methoxyethyl)-N-methyl-pyrimidin-2-amine was obtained.

1H NMR (400 MHz, CDCl3): 8.32 (d, 1H), 6.66 (d, 1H), 5.04 (s, 1H), 3.82 (t, 2H) 3.58 (t, 2H), 3.40 (s, 6H), 3.34 (s, 3H), 3.21 (s, 3H).

Step B

Starting from this product using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, CDCl3): 8.25 (d, 1H), 6.39 (d, 1H), 4.57 (d, 2H), 3.90 (br s, 1H), 3.85 (t, 2H) 3.61 (t, 2H), 3.37 (s, 3H), 3.24 (s, 3H).

Preparation 9aq: [2-(4-Methylpiperazin-1-yl)pyrimidin-4-yl]methanol Step A

Starting from 4-(dimethoxymethyl)-2-methylsulfonyl-pyrimidine (Preparation 9a3) and 1-methylpiperazine using General Procedure 9E 4-(dimethoxymethyl)-2-(4-methylpiperazin-1-yl)pyrimidine was obtained.

1H NMR (400 MHz, CDCl3): 8.34 (d, 1H), 6.70 (d, 1H), 5.06 (s, 1H), 3.85 (m, 4H), 3.41 (s, 6H), 2.46 (m, 4H), 2.34 (s, 3H).

Step B

Starting from 4-(dimethoxymethyl)-2-(4-methylpiperazin-1-yl)pyrimidine using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.33 (d, 1H), 6.72 (d, 1H), 5.41 (t, 1H), 4.35 (d, 2H), 3.70 (m, 4H), 2.36 (m, 4H), 2.22 (s, 3H).

Preparation 9ar: (2-(Morpholin-4-yl)pyrimidin-4-yl)methanol Step A

3.50 g Preparation 9a3 (15.1 mmol) was stirred in 23 mL morpholine at room temperature for 2 h. The reaction mixture was concentrated under reduced pressure and the residue was purified via flash chromatography using heptane and ethyl-acetate as eluents to give 4-[4-(dimethoxymethyl)pyrimidin-2-yl]morpholine.

1H NMR (400 MHz, DMSO-d6): 8.42 (d, 1H), 6.71 (d, 1H), 5.06 (s, 1H), 3.67 (m, 8H), 3.31 (s, 6H).

Step B

Starting from 4-[4-(dimethoxymethyl)pyrimidin-2-yl]morpholine using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.36 (d, 1H), 6.76 (d, 1H), 5.43 (t, 1H), 4.36 (d, 2H), 3.65 (m, 8H).

Preparation 9as: [2-(1H-[1,2,3]Triazol-1-yl)pyrimidin-4-yl]methanol Step A

To the solution of 829 mg 1H-[1,2,3]triazole (12.0 mmol) in acetone 2.07 g K2CO3 (15.0 mmol), then Preparation 9a3 were added and the mixture was stirred for 2 h at room temperature. The reaction mixture was filtered and concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and ethyl-acetate as eluents to give 4-(dimethoxymethyl)-2-(1H-[1,2,3]triazol-1-yl)pyrimidine as white crystals.

1H NMR (400 MHz, DMSO-d6): 9.06 (d, 1H), 8.89 (d, 1H), 8.01 (d, 1H), 7.70 (d, 1H), 5.44 (s, 1H), 3.40 (s, 6H).

Note: 4-(dimethoxymethyl)-2-(1H-[1,2,3]triazol-2-yl)pyrimidine was also obtained.

1H NMR (400 MHz, DMSO-d6): 9.03 (d, 1H), 8.24 (s, 2H), 7.66 (d, 1H), 5.42 (s, 1H), 3.39 (s, 6H).

Step B

Starting from 1.40 g 4-(dimethoxymethyl)-2-(1H-[1,2,3]triazol-1-yl)pyrimidine using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.97 (d, 1H), 8.88 (d, 1H), 7.99 (d, 1H), 7.70 (d, 1H), 5.86 (t, 1H), 4.69 (d, 2H).

Preparation 9at: [2-(Benzylamino)pyrimidin-4-yl]methanol

To the solution of 0.32 mL benzylamine in 4 mL DCM 460 mg 4-(dimethoxymethyl)-2-methylsulfonyl-pyrimidine (Preparation 9a3, 2.00 mmol) was added and it was stirred at 40° C. for 16 h. The reaction mixture was diluted with DCM and washed with brine. The organic layer was dried over MgSO4 and concentrated under reduced pressure. To the residue 6 mL 2N HCl was added and it was stirred at 60° C. for 2 h. It was cooled to 0° C., the pH was adjusted to 9 using 2N NaOH solution, and then 152 mg sodium borohydride (2.0 mmol) was added and stirred for 1 h. The reaction mixture was extracted with EtOAc, the combined organic layers were dried over MgSO4 filtered and concentrated under reduced pressure to give the title product.

MS: (M+H)+=216.2.

Preparation 9au: [2-(Cyclopropylmethoxy)pyrimidin-4-yl]methanol Step A

10 mL cyclopropylmethanol was cooled to 0° C., then 1.10 g sodium hydride (27.5 mmol) was added portionwise and the mixture was stirred at this temperature for 30 min. This mixture was added to 953 mg of 2-methylsulfonyl-4-(tetrahydropyran-2-yloxymethyl)pyrimidine (Preparation 9a4, 3.50 mmol) and it was stirred at room temperature for 30 min. Water was added then the mixture was extracted with DCM. The combined organic layers were dried over MgSO4, filtered and concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and EtOAc as eluents to give 2-(cyclopropylmethoxy)-4-(tetrahydropyran-2-yloxymethyl)pyrimidine.

MS: (M+H)+=265.2.

Step B

To the solution of 732 mg of 2-(cyclopropylmethoxy)-4-(tetrahydropyran-2-yloxymethyl) pyrimidine (2.77 mmol) in 50 mL EtOH 160 mg pyridinium p-toluenesulfonate (0.64 mmol) was added and the mixture was stirred at 50° C. for 16 h. The mixture was concentrated under reduced pressure, the residue was purified via flash chromatography using heptane and EtOAc as eluents to give the title product.

1H NMR (400 MHz, DMSO-d6): 8.55 (d, 1H), 7.16 (d, 1H), 5.59 (t, 1H), 4.45 (m, 2H), 4.11 (d, 2H), 1.25 (m, 1H), 0.55 (m, 2H), 0.33 (m, 2H).

Preparation 9aw: [2-(4-Pyridylmethoxy)pyrimidin-4-yl]methanol

To the solution of 164 mg of 4-pyridylmethanol (1.50 mmol) in 3 mL DMF 80 mg of sodium hydride (60%, 2.0 mmol) was added at 0° C. and stirred at room temperature for 30 min. This mixture was added to the solution of 272 mg of 2-methylsulfonyl-4-(tetrahydropyran-2-yloxymethyl)pyrimidine (Preparation 9a4, 1.00 mmol) in 1 mL DMF. The mixture was stirred at room temperature for 1 h, then it was diluted with water, and extracted with DCM. The combined organic layers were dried over Na2SO4 and concentrated under reduced pressure. The residue was dissolved in 15 mL EtOH then 160 mg pyridinium p-toluenesulfonate (0.64 mmol) was added and stirred at 50° C. for 16 h. The mixture was concentrated under reduced pressure, the residue diluted with water, and extracted with DCM. The combined organic layers were dried over Na2SO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and EtOAc as eluents to give the title product.

MS: (M+H)+=218.2.

Preparation 9ax: (2-Benzyloxypyrimidin-4-yl)methanol Step A

To 4.25 mL phenylmethanol cooled to 0° C. 545 mg sodium hydride (13.6 mmol) was added portionwise and the mixture was stirred at room temperature for 30 min. This mixture was added to 460 mg of 2-methylsulfonyl-4-(tetrahydropyran-2-yloxymethyl) pyrimidine (Preparation 9a4, 1.69 mmol) and it was stirred at room temperature for 1 h. Water was added then the mixture was extracted with DCM. The combined organic layers were dried over MgSO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and EtOAc as eluents to give 2-benzyloxy-4-(tetrahydropyran-2-yloxymethyl)pyrimidine.

MS: (M+H)+=301.2.

Step B

To the solution of 408 mg of 2-benzyloxy-4-(tetrahydropyran-2-yloxymethyl)pyrimidine (1.36 mmol) in 50 mL EtOH 79 mg pyridinium p-toluenesulfonate (0.30 mmol) was added and the mixture was stirred at 50° C. for 16 h. The mixture was concentrated under reduced pressure, the residue was purified via flash chromatography using heptane and EtOAc as eluents to give the title product.

1H NMR (400 MHz, DMSO-d6): 8.59 (d, 1H), 7.47-7.30 (m, 5H), 7.21 (d, 1H), 5.62 (t, 1H), 5.37 (s, 2H), 4.49 (m, 2H).

Preparation 9ay: {2-[(1-methyl-1H-imidazol-5-yl)methoxy]pyrimidin-4-yl}methanol

To the solution of 224 mg of (1-methyl-1H-imidazol-5-yl)methanol (2.00 mmol) in 5 mL DMF 158 mg of sodium hydride (60%, 3.95 mmol) was added at 0° C. and it was stirred at room temperature for 30 min. This mixture was added to the solution of 500 mg of 2-methylsulfonyl-4-(tetrahydropyran-2-yloxymethyl)pyrimidine (Preparation 9a4, 1.84 mmol) in 1 mL DMF. The reaction mixture was stirred at room temperature for 1 h, then it was diluted with water, and extracted with DCM. The combined organic layers were dried over Na2SO4 and concentrated under reduced pressure. The residue was dissolved in 5 mL HCl in EtOH (1.25M) and stirred at room temperature for 1 h. The mixture was concentrated under reduced pressure, the residue diluted with water, and extracted with DCM. The combined organic layers were dried over Na2SO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and EtOAc as eluents to give the title product.

MS: (M+H)+=221.2.

Preparation 9ba: (2-Ethylpyrimidin-4-yl)methanol Step A

Starting from propanamidine hydrochloride using General Procedure 9C 4-(dimethoxymethyl)-2-ethyl-pyrimidine was obtained.

MS: (M+H)+=183.2.

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.69 (d, 1H), 7.37 (d, 1H), 5.59 (t, 1H), 4.52 (d, 2H), 2.84 (q, 2H), 1.25 (t, 3H).

Preparation 9bb: (2-Propylpyrimidin-4-yl)methanol Step A

Starting from butanamidine hydrochloride using General Procedure 9C 4-(dimethoxymethyl)-2-propyl-pyrimidine was obtained.

MS: (M+H)+=197.2.

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.68 (d, 1H), 7.36 (d, 1H), 5.59 (t, 1H), 4.51 (d, 2H), 2.79 (t, 2H), 1.75 (h, 2H), 0.90 (t, 3H).

Preparation 9bc: (2-Butylpyrimidin-4-yl)methanol Step A

Starting from n-pentanamidine hydrochloride using General Procedure 9C 2-butyl-4-(dimethoxymethyl)pyrimidine was obtained.

1H NMR (400 MHz, DMSO-d6): 8.77 (d, 1H), 7.36 (d, 1H), 5.25 (s, 1H), 3.32 (s, 6H), 2.87 (t, 2H), 1.73 (m, 2H), 1.32 (m, 2H), 0.90 (t, 3H).

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.70 (d, 1H), 7.36 (d, 1H), 5.59 (t, 1H), 4.51 (d, 2H), 2.81 (t, 2H), 1.70 (m, 2H), 1.31 (m, 2H), 0.89 (t, 3H).

Preparation 9bd: (2-Isopropylpyrimidin-4-yl)methanol Step A

Starting from 2-methylpropanamidine hydrochloride using General Procedure 9C 4-(dimethoxymethyl)-2-isopropyl-pyrimidine was obtained.

1H NMR (400 MHz, DMSO-d6): 8.79 (d, 1H), 7.36 (d, 1H), 5.25 (s, 1H), 3.34 (s, 6H), 3.14 (h, 1H), 1.27 (d, 6H).

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.70 (d, 1H), 7.37 (d, 1H), 5.59 (t, 1H), 4.52 (d, 2H), 3.08 (h, 1H), 1.25 (d, 6H).

Preparation 9be: (2-Cyclopropylpyrimidin-4-yl)methanol Step A

Starting from cyclopropanecarboxamidine hydrochloride using General Procedure 9C 2-cyclopropyl-4-(dimethoxymethyl)pyrimidine was obtained.

1H NMR (400 MHz, DMSO-d6): 8.67 (d, 1H), 7.28 (d, 1H), 5.20 (s, 1H), 3.31 (s, 6H), 2.20 (m, 1H), 1.07-0.96 (m, 4H).

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.59 (d, 1H), 7.29 (d, 1H), 5.56 (t, 1H), 4.47 (d, 2H), 2.14 (m, 1H), 1.03-0.92 (m, 4H).

Preparation 9bf: (2-Isobutylpyrimidin-4-yl)methanol Step A

Starting from 3-methylbutanamidine hydrochloride using General Procedure 9C 4-(dimethoxymethyl)-2-isobutyl-pyrimidine was obtained.

1H NMR (400 MHz, DMSO-d6): 8.77 (d, 1H), 7.36 (d, 1H), 5.25 (s, 1H), 3.32 (s, 6H), 2.75 (d, 2H), 2.22 (m, 1H), 0.89 (d, 6H).

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.69 (d, 1H), 7.37 (d, 1H), 5.59 (t, 1H), 4.51 (d, 2H), 2.69 (d, 2H), 2.19 (m, 1H), 0.88 (d, 6H).

Preparation 9bg: [2-(Cyclopropylmethyl)pyrimidin-4-yl]methanol Step A

Starting from 2-cyclopropylacetamidine hydrochloride using General Procedure 9C 2-(cyclopropylmethyl)-4-(dimethoxymethyl)pyrimidine was obtained.

1H NMR (400 MHz, DMSO-d6): 8.79 (d, 1H), 7.38 (d, 1H), 5.26 (s, 1H), 3.34 (s, 6H), 2.78 (d, 2H), 1.18 (m, 1H), 0.46 (m, 2H), 0.22 (m, 2H).

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.70 (d, 1H), 7.39 (d, 1H), 5.59 (t, 1H), 4.52 (d, 2H), 2.71 (d, 2H), 1.17 (m, 1H), 0.45 (m, 2H), 0.25 (m, 2H).

Preparation 9bh: (2-tert-Butylpyrimidin-4-yl)methanol Step A

Starting from 2,2-dimethylpropanamidine hydrochloride using General Procedure 9C 2-tert-butyl-4-(dimethoxymethyl)pyrimidine was obtained.

1H NMR (400 MHz, DMSO-d6): 8.80 (d, 1H), 7.34 (d, 1H), 5.25 (s, 1H), 3.34 (s, 6H), 1.35 (s, 9H).

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.72 (d, 1H), 7.35 (d, 1H), 5.57 (t, 1H), 4.52 (d, 2H), 1.33 (s, 9H).

Preparation 9bi: (2-Cyclopentylpyrimidin-4-yl)methanol Step A

Starting from cyclopentanecarboxamidine hydrochloride using General Procedure 9C 2-cyclopentyl-4-(dimethoxymethyl)pyrimidine was obtained.

MS: (M+H)+=223.2.

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.68 (d, 1H), 7.34 (d, 1H), 5.57 (t, 1H), 4.51 (d, 2H), 3.25 (p, 1H), 1.98 (m, 2H), 1.87-1.57 (m, 6H).

Preparation 9bj: [2-(Trifluoromethyl)pyrimidin-4-yl]methanol Step A

The mixture of 500 mg Preparation 9a1 (2.89 mmol) and 356 mg 2,2,2-trifluoroacetamidine (3.18 mmol) was heated at 110° C. for 40 min in a microwave reactor. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to give 4-(dimethoxymethyl)-2-(trifluoromethyl)pyrimidine.

1H NMR (400 MHz, CDCl3): 8.97 (d, 1H), 7.77 (d, 1H), 5.36 (s, 1H), 3.48 (s, 6H).

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, CDCl3): 8.90 (d, 1H), 7.65 (d, 1H), 5.87 (br s, 1H), 4.91 (d, 2H).

Preparation 9bk: [2-(Methoxymethyl)pyrimidin-4-yl]methanol Step A

Starting from 2-methoxyacetamidine hydrochloride using General Procedure 9C 4-(dimethoxymethyl)-2-(methoxymethyl)pyrimidine was obtained.

1H NMR (400 MHz, DMSO-d6): 8.86 (d, 1H), 7.47 (d, 1H), 5.30 (s, 1H), 4.58 (s, 2H), 3.37 (s, 3H), 3.34 (s, 6H).

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.77 (d, 1H), 7.47 (d, 1H), 5.66 (t, 1H), 4.55 (d, 2H), 4.53 (s, 2H), 3.36 (s, 3H).

Preparation 9bl: [2-(2-Methoxyethyl)pyrimidin-4-yl]methanol Step A

Starting from 3-methoxypropanamidine hydrochloride using General Procedure 9C 4-(dimethoxymethyl)-2-(2-methoxyethyl)pyrimidine was obtained.

1H NMR (400 MHz, DMSO-d6): 8.78 (d, 1H), 7.38 (d, 1H), 5.25 (s, 1H), 3.80 (t, 2H), 3.33 (s, 6H), 3.22 (s, 3H), 3.11 (t, 2H).

Note: 2-[4-(dimethoxymethyl)pyrimidin-2-yl]-N,N-dimethyl-ethanamine was also obtained.

MS: (M+H)+=226.2. (See also at Step A of Preparation 9bm)

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.70 (d, 1H), 7.39 (d, 1H), 5.60 (t, 1H), 4.52 (d, 2H), 3.78 (t, 2H), 3.22 (s, 3H), 3.06 (t, 2H).

Preparation 9bm: [2-(2-Dimethylaminoethyl)pyrimidin-4-yl]methanol Step A

To the mixture of 1.63 g 3-(dimethylamino)propanamidine dihydrochloride (8.67 mmol) and 1.25 g (E)-4-(dimethylamino)-1,1-dimethoxy-but-3-en-2-one (Preparation 9a1, 7.23 mmol) in 4 mL dry methanol sodium methoxide (17.3 mmol) was added portionwise and the mixture was stirred at 75° C. for 2 h. The reaction mixture was cooled and concentrated under reduced pressure. Water was added to the residue and it was extracted with EtOAc. The combined organic layers were dried over MgSO4 and concentrated under reduced pressure to give 2-[4-(dimethoxymethyl)pyrimidin-2-yl]-N,N-dimethyl-ethanamine.

MS: (M+H)+=226.2.

Step B

1.474 g crude 2-[4-(dimethoxymethyl)pyrimidin-2-yl]-N,N-dimethyl-ethanamine obtained in Step A was stirred with 20 mL 2N HCl solution at 60° C. for 2 h. The reaction mixture was cooled to 0° C., then 1.52 NaOH (3.8 mmol) was added portionwise. The pH was adjusted to 8 using 10% K2CO3 solution, then 492 mg sodium borohydride (13.0 mmol) was added portionwise keeping the temperature under 5° C. and stirred for 30 min at 0° C. Reaction mixture was salted (4 g NaCl) then extracted with 2-Me-THF. The combined organic layers were dried over Na2SO4 and concentrated under reduced pressure to give the title product.

1H NMR (400 MHz, DMSO-d6): 8.69 (d, 1H), 7.39 (d, 1H), 5.64 (br s, 1H), 4.52 (s, 2H), 3.01 (m, 2H), 2.80 (m, 2H), 2.25 (s, 6H).

Preparation 9bn: [2-(Ethoxymethyl)pyrimidin-4-yl]methanol Step A

Starting from 2-ethoxyacetamidine hydrochloride using General Procedure 9C 4-(dimethoxymethyl)-2-(ethoxymethyl)pyrimidine was obtained.

1H NMR (400 MHz, DMSO-d6): 8.86 (d, 1H), 7.46 (d, 1H), 5.29 (s, 1H), 4.61 (s, 2H), 3.58 (q, 2H), 3.33 (s, 6H), 1.16 (t, 3H).

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.77 (d, 1H), 7.47 (d, 1H), 5.65 (t, 1H), 4.56 (m, 4H), 3.57 (q, 2H), 1.14 (t, 3H).

Preparation 9bo: [2-(4-Chlorophenyl)pyrimidin-4-yl]methanol Step A

Starting from 4-chlorobenzamidine hydrochloride using General Procedure 9C 2-(4-chlorophenyl)-4-(dimethoxymethyl)pyrimidine was obtained.

1H NMR (400 MHz, DMSO-d6): 8.97 (d, 1H), 8.40 (m, 2H), 7.61 (m, 2H), 7.50 (d, 1H), 5.38 (s, 1H), 3.39 (s, 6H).

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.89 (d, 1H), 8.39 (m, 2H), 7.59 (m, 2H), 7.52 (d, 1H), 5.71 (t, 1H), 4.64 (d, 2H).

Preparation 9bp: [2-(2-Methoxyphenyl)pyrimidin-4-yl]methanol Step A

Starting from 2-methoxybenzamidine acetic acid salt using General Procedure 9C 4-(dimethoxymethyl)-2-(2-methoxyphenyl)pyrimidine was obtained.

1H NMR (400 MHz, DMSO-d6): 8.93 (d, 1H), 7.55-7.44 (m, 3H), 7.16 (d, 1H), 7.06 (m, 1H), 5.31 (s, 1H), 3.76 (s, 3H), 3.37 (s, 6H).

Step B

261 mg 4-(dimethoxymethyl)-2-(2-methoxyphenyl)pyrimidine (1.00 mmol) was dissolved in 2 mL HCl in dioxane (4M solution), then 2 mL water was added and this mixture was stirred at 50° C. for 16 h. The reaction mixture was cooled to 0° C., then 320 mg NaOH (8.0 mmol) was added portionwise. The pH was adjusted to 8 using 10% K2CO3 solution, then 76 mg sodium borohydride (2.0 mmol) was added and the mixture was stirred for 30 min at 0° C. The reaction mixture was diluted with 5 mL water and extracted with EtOAc. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to give the title product.

1H NMR (400 MHz, DMSO-d6): 8.84 (d, 1H), 7.50-7.42 (m, 3H), 7.14 (d, 1H), 7.03 (m, 1H), 5.66 (t, 1H), 4.58 (d, 2H), 3.75 (s, 3H).

Preparation 9bq: [2-(2-Pyridyl)pyrimidin-4-yl]methanol Step A

Starting from pyridine-2-carboxamidine hydrochloride using General Procedure 9C 4-(dimethoxymethyl)-2-(2-pyridyl)pyrimidine was obtained.

MS: (M+H)+=232.2.

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.94 (d, 1H), 8.74 (d, 1H), 8.37 (d, 1H), 7.97 (m, 1H), 7.60 (d, 1H), 7.52 (m, 1H), 5.74 (t, 1H), 4.67 (d, 2H).

Preparation 9br: [2-(3-Pyridyl)pyrimidin-4-yl]methanol Step A

Starting from pyridine-3-carboxamidine hydrochloride using General Procedure 9C 4-(dimethoxymethyl)-2-(3-pyridyl)pyrimidine was obtained.

MS: (M+H)+=232.2.

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 9.51 (dd, 1H), 8.93 (d, 1H), 8.72 (dd, 1H), 8.66 (m, 1H), 7.56 (m, 2H), 5.73 (t, 1H), 4.67 (d, 2H).

Preparation 9bs: [2-(4-Pyridyl)pyrimidin-4-yl]methanol Step A

Starting from pyridine-4-carboxamidine hydrochloride using General Procedure 9C 4-(dimethoxymethyl)-2-(4-pyridyl)pyrimidine was obtained.

MS: (M+H)+=232.2.

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.98 (d, 1H), 8.77 (m, 2H), 8.25 (m, 2H), 7.63 (d, 1H), 5.76 (t, 1H), 4.68 (d, 2H).

Preparation 9bt: [2-(3-Furyl)pyrimidin-4-yl]methanol Step A

Starting from furan-3-carboxamidine hydrochloride using General Procedure 9C 4-(dimethoxymethyl)-2-(3-furyl)pyrimidine was obtained.

1H NMR (400 MHz, DMSO-d6): 8.85 (d, 1H), 8.43 (br s, 1H), 7.83 (dd, 1H), 7.39 (d, 1H), 7.04 (dd, 1H), 5.31 (s, 1H), 3.36 (s, 6H).

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.77 (d, 1H), 8.39 (br s, 1H), 7.80 (dd, 1H), 7.40 (d, 1H), 7.02 (dd, 1H), 5.65 (t, 1H), 4.58 (d, 2H).

Preparation 9bu: [2-(3-Thienyl)pyrimidin-4-yl]methanol Step A

Starting from thiophene-3-carboxamidine hydrochloride using General Procedure 9C 4-(dimethoxymethyl)-2-(3-thienyl)pyrimidine was obtained.

1H NMR (400 MHz, DMSO-d6): 8.89 (d, 1H), 8.39 (dd, 1H), 7.81 (dd, 1H), 7.67 (dd, 1H), 7.40 (d, 1H), 5.33 (s, 1H), 3.38 (s, 6H).

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.81 (d, 1H), 8.36 (dd, 1H), 7.80 (dd, 1H), 7.65 (dd, 1H), 7.42 (d, 1H), 5.66 (t, 1H), 4.60 (d, 2H).

Preparation 9bv: [2-(2-Thienyl)pyrimidin-4-yl]methanol Step A

Starting from thiophene-2-carboxamidine hydrochloride using General Procedure 9C 4-(dimethoxymethyl)-2-(2-thienyl)pyrimidine was obtained.

MS: (M+H)+=237.2.

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.77 (d, 1H), 7.93 (dd, 1H), 7.76 (dd, 1H), 7.40 (d, 1H), 7.20 (dd, 1H), 5.68 (t, 1H), 4.58 (d, 2H).

Preparation 9bw: (2-(1H-Pyrazol-1-yl)pyrimidin-4-yl)methanol Step A

To the stirred mixture of 4.18 g of pyrazole-1-carboxamidine hydrochloride (28.5 mmol) and 120 mL of ethanol 4.05 g of Na2HPO4 (28.5 mmol) and 4.12 g of Preparation 9a1 (23.78 mmol) were added, then it was stirred at 85° C. for 10 h. The reaction mixture was cooled, concentrated under reduced pressure, and the crude product was purified via flash chromatography using heptane and EtOAc as eluents to give 4-(dimethoxymethyl)-2-(1H-pyrazol-1-yl)-pyrimidine.

1H NMR (400 MHz, DMSO-d6): 8.92 (d, 1H), 8.65 (d, 1H), 7.87 (br s, 1H), 7.50 (d, 1H), 6.62 (dd, 1H), 5.36 (s, 1H), 3.38 (s, 6H).

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.84 (d, 1H), 8.65 (d, 1H), 7.84 (br s, 1H), 7.51 (d, 1H), 6.59 (dd, 1H), 5.77 (t, 1H), 4.63 (d, 2H).

Preparation 9bx: (2-Thiazol-2-ylpyrimidin-4-yl)methanol Step A

To the stirred mixture of 1.00 g of thiazole-2-carboxamidine hydrochloride (6.11 mmol) and 3 mL of methanol 330 mg sodium methoxide (6.11 mmol) and 1.05 g of Preparation 9a1 (6.11 mmol) were added, then it was stirred at 75° C. for 7 h. The reaction mixture was cooled, concentrated under reduced pressure, brine was added and it was extracted with DCM. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to give 2-[4-(dimethoxymethyl)pyrimidin-2-yl]thiazole.

MS: (M+H)+=238.2.

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.91 (d, 1H), 8.03 (dd, 2H), 7.61 (d, 1H), 5.78 (t, 1H), 4.65 (d, 2H).

Preparation 9by: (2-Benzylpyrimidin-4-yl)methanol Step A

Starting from 2-phenylacetamidine hydrochloride using General Procedure 9C 2-benzyl-4-(dimethoxymethyl)pyrimidine was obtained.

MS: (M+H)+=245.2.

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.71 (d, 1H), 7.39 (d, 1H), 7.28 (m, 4H), 7.20 (m, 1H), 5.61 (t, 1H), 4.52 (d, 2H), 4.16 (s, 2H).

Preparation 9bz: [2-(Phenoxymethyl)pyrimidin-4-yl]methanol Step A

Starting from 2-phenoxyacetamidine hydrochloride using General Procedure 9C 4-(dimethoxymethyl)-2-(phenoxymethyl)pyrimidine was obtained.

MS: (M+H)+=261.2.

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.81 (d, 1H), 7.51 (d, 1H), 7.28 (m, 2H), 6.95 (m, 3H), 5.68 (t, 1H), 5.21 (s, 2H), 4.57 (d, 2H).

Preparation 9ca: (5-Bromopyrimidin-4-yl)methanol Step A

To the solution of 3.90 g of 4-(dimethoxymethyl)pyrimidine (25.3 mmol) in 100 mL AcOH 4.15 g sodium acetate (50.6 mmol) and 8.08 g bromine (50.6 mmol) were added and the mixture was stirred at 40° C. for 7 h. Reaction mixture was concentrated under reduced pressure, DCM was added to the residue, and it was washed with saturated aq. NaHCO3. The organic phase was dried over Na2SO4 and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to give 5-bromo-4-(dimethoxymethyl)pyrimidine.

1H NMR (400 MHz, DMSO-d6): 9.18 (s, 1H), 9.06 (s, 1H), 5.51 (s, 1H), 3.40 (s, 6H).

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 9.14 (s, 1H), 8.94 (s, 1H), 5.49 (t, 1H), 4.62 (d, 2H).

Preparation 9cb: (5-Bromo-2-methoxy-pyrimidin-4-yl)methanol Step A

Starting from methyl carbamimidate hydrochloride using General Procedure 9C 4-(dimethoxymethyl)-2-methoxy-pyrimidine was obtained.

1H NMR (400 MHz, DMSO-d6): 8.66 (d, 1H), 7.18 (d, 1H), 5.20 (s, 1H), 3.92 (s, 3H) 3.33 (s, 6H).

Step B

To the solution of 5.49 g of 4-(dimethoxymethyl)-2-methoxy-pyrimidine (30.0 mmol) in 100 mL AcOH 4.92 g sodium acetate (60.0 mmol) and 9.59 g bromine (60.0 mmol) were added and stirred at 40° C. for 24 h. The reaction mixture was concentrated under reduced pressure, to the residue DCM was added, and it was washed with saturated aq. NaHCO3. The organic phase was dried over Na2SO4 and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to give 5-bromo-4-(dimethoxymethyl)-2-methoxy-pyrimidine.

1H NMR (400 MHz, DMSO-d6): 8.79 (s, 1H), 5.41 (s, 1H), 3.93 (s, 3H), 3.40 (s, 6H).

Step C

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.68 (s, 1H), 5.41 (t, 1H), 4.54 (d, 2H), 3.94 (s, 3H).

Preparation 9cc: [2-Methoxy-5-(3-thienyl)pyrimidin-4-yl]methanol Step A

To the solution of 766 mg of 5-bromo-4-(dimethoxymethyl)-2-methoxy-pyrimidine (the product of Preparation 9cb, Step B, 2.91 mmol) in 15 mL THF-water (1:1) 934 mg 4,4,5,5-tetramethyl-2-(3-thienyl)-1,3,2-dioxaborolane (4.45 mmol), 1.96 g Cs2CO3 (6.00 mmol) and 522 mg tetrakis(triphenylphosphine)palladium(0) (0.450 mmol) were added and the mixture was heated under N2 in a microwave reactor at 110° C. for 30 h. The reaction mixture was filtered; the filtrate was concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and ethyl-acetate as eluents to give 4-(dimethoxymethyl)-2-methoxy-5-(3-thienyl)pyrimidine.

MS: (M+H)+=267.2.

Step B

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 8.62 (s, 1H), 7.76 (m, 1H), 7.70 (m, 1H), 7.39 (dd, 1H), 5.39 (t, 1H), 4.49 (d, 2H), 3.98 (s, 3H).

Preparation 9cd: (2,6-Dimethoxypyrimidin-4-yl)methanol Step A

To the mixture of 12.16 g O-methylisourea hydrochloride (110 mmol) and 20.0 g ethyl 4,4-dimethoxy-3-oxo-butanoate (91.6 mmol) in dry methanol 5.94 g sodium methoxide (110 mmol) was added portionwise and the mixture was stirred at 75° C. for 2 h. The reaction mixture was cooled, celite was added and the volatiles were removed under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to give 4-(dimethoxymethyl)-2-methoxy-1H-pyrimidin-6-one.

1H NMR (400 MHz, DMSO-d6): 12.37 (br s, 1H), 6.03 (s, 1H), 5.08 (s, 1H), 3.87 (s, 3H), 3.57 (m, 4H), 1.15 (t, 6H).

Step B

To the solution of 2.00 g 4-(dimethoxymethyl)-2-methoxy-1H-pyrimidin-6-one (8.76 mmol) in 8 mL DMF 1612 mg phosphoryl chloride (10.5 mmol) was added dropwise at 0° C. and it was stirred at this temperature for 30 min. The mixture was diluted with 40 mL DCM and it was poured onto ice. The organic layer was washed with water, then it was dried over MgSO4 and concentrated under reduced pressure. The residue was dissolved in 30 mL methanol and 946 mg sodium methoxide (17.52 mmol) was added at 0° C., and it was stirred at this temperature for 1 h. Celite was added and the volatiles were removed under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to give 4-(dimethoxymethyl)-2,6-dimethoxy-pyrimidine.

MS: (M+H)+=243.2.

Step C

Starting from this material using General Procedure 9A the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 6.53 (br s, 1H), 5.53 (t, 1H), 4.40 (dd, 2H), 3.89 (s, 3H), 3.86 (s, 3H).

Preparation 9ce: (6-Chloropyrimidin-4-yl)methanol Step A

To the solution of 3.00 g chloromethyl benzoate (17.59 mmol) in 21 mL MeCN 5.799 g NaI (38.69 mmol) was added. The reaction mixture was stirred at room temperature for 14 h. The precipitate was filtered and the organic phase was concentrated to give iodomethyl benzoate as yellow oil.

Step B

Preparation of activated zinc: Zinc was washed quickly with 10% HCl followed with water then ethanol then diethyl ether. The activated zinc was stored under argon. An excess of activated zinc was suspended in 3 mL THF, treated with 349 mg 1,2-dibromoethane (160 μL, 1.857 mmol) and the resulting mixture was heated at 60° C. under argon for 30 minutes. The reaction mixture was allowed to cool to room temperature, treated with 154 mg trimethylchlorosilane (180 μL, 1.418 mmol) and the resulting mixture was stirred at room temperature for 30 minutes. The reaction mixture was treated with 64.5 mg LiCl (1.521 mmol) and the resulting mixture was stirred at room temperature for 30 minutes.

A solution of iodomethyl benzoate (1.60 g, 6.11 mmol) in 3 mL THF was added and the resulting mixture was stirred at room temperature for 1.5 h. This reaction mixture was added to a solution of 537 mg 4,6-dichloropyrimidine (3.605 mmol) and 502 mg tris]tris(3,5-bis(trifluoromethyl)-phenyl)phosphine]palladium(0) {Superstable Pd(0) Catalyst} (0.180 mmol) in 6 mL THF and the resulting mixture was stirred at room temperature under argon for 18 h. The reaction mixture was filtered through celite, diluted with saturated ammonium chloride solution and extracted with ethyl acetate. The ethyl acetate layers were combined, dried on magnesium sulfate and concentrated under reduced pressure. The residue was purified by column chromatography.

Step C

To the solution of 800 mg (6-chloropyrimidin-4-yl)methyl benzoate (3.217 mmol) in 32 mL MeOH 17 mg NaOMe (0.315 mmol) was added. It was stirred at room temperature for 2.5 h. The reaction mixture was concentrated under reduced pressure, and the residue was purified by flash chromatography to give the title product.

1H NMR (200 MHz, CDCl3): 8.94 (s, 1H), 7.47 (s, 1H), 4.76 (s, 2H).

Preparation 9cf: (2-Methoxy-6-methyl-pyrimidin-4-yl)methanol

To the solution of 1.00 g methyl 2-methoxy-6-methyl-pyrimidine-4-carboxylate (5.49 mmol) in 15 mL abs THF 12 mL DIBAL-H (1M in THF) was added and it was stirred at room temperature for 30 min, then further 12 mL DIBAL-H was added. After 1 h the excess of DIBAL-H was quenched with propan-2-ol, then with water. Saturated aq. NaF solution was added to the reaction mixture, then it was extracted with DCM. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to give the title product.

1H NMR (400 MHz, DMSO-d6): 7.07 (s, 1H), 5.55 (t, 1H), 4.43 (m, 2H), 3.86 (s, 3H), 2.40 (s, 3H).

Preparation 9cg: (6-Phenylpyrimidin-4-yl)methanol

To the solution of 1.00 g ethyl 6-phenylpyrimidine-4-carboxylate (4.38 mmol) in 15 mL MeOH 175 mg NaBH4 (4.63 mmol) was added at room temperature and it was stirred at 70° C. for 3 h. The reaction mixture was concentrated, and the residue was diluted with saturated aq. K2CO3 and it was extracted with DCM. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to give the title product.

1H NMR (400 MHz, CDCl3): 8.97 (s, 1H), 8.11 (d, 2H), 7.68-7.45 (m, 4H), 5.45 (d, 2H).

Preparation 9ch: (2-Chloropyrimidin-4-yl)methanol

To the solution of 1860 mg methyl 2-chloropyrimidine-4-carboxylate (10.78 mmol) in 11 mL THF 21.6 mL DIBAL-H (1M in THF, 21.6 mmol) was added dropwise at −70° C. and it was stirred at this temperature for 16 h. 5 mL MeOH was added to it at −50° C., then 5 mL water was added to it at 0° C. It was filtered through celite. The filtrate was concentrated under reduced pressure, and then it was purified via flash chromatography using heptane and EtOAc as eluents.

1H NMR (200 MHz, CDCl3): 8.60 (d, 1H), 7.38 (d, 1H), 4.79 (s, 2H).

Preparation 9da: (1-Ethyl-1H-pyrazol-5-yl)methanol Step A

Using bromoethane in General Procedure 9G 1-ethyl-1H-pyrazole was obtained.

Step B

Starting from 1-ethyl-1H-pyrazole using General Procedure 9H the title product was obtained.

1H NMR (400 MHz, CDCl3): 7.36 (d, 1H), 6.15 (d, 1H), 4.66 (br s, 2H), 4.18 (q, 2H), 2.99 (br s, 1H), 1.42 (t, 3H).

Preparation 9db: (1-Propyl-1H-pyrazol-5-yl)methanol Step A

Using 1-bromopropane in General Procedure 9G 1-propylpyrazole was obtained.

MS: (M+H)+=111.2.

Step B

Starting from 1-propyl-1H-pyrazole using General Procedure 9H the title product was obtained.

1H NMR (400 MHz, CDCl3): 7.34 (d, 1H), 6.14 (d, 1H), 4.64 (s, 2H), 4.07 (dd, 2H), 1.85 (m, 2H), 0.89 (t, 3H).

MS: (M+H)+=141.2.

Preparation 9dc: [1-(Propan-2-yl)-1H-pyrazol-5-yl]methanol Step A

Using 2-bromopropane in General Procedure 9G 1-isopropylpyrazole was obtained.

Step B

Starting from 1-isopropylpyrazole using General Procedure 9H the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 7.32 (d, 1H), 6.10 (d, 1H), 5.21 (t, 1H), 4.60 (h, 1H), 4.50 (d, 2H), 1.36 (d, 6H).

MS: (M+H)+=141.2.

Preparation 9dd: (1-Butyl-1H-pyrazol-5-yl)methanol

Starting from 1-butylpyrazole using General Procedure 9H the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 7.30 (d, 1H), 6.12 (d, 1H), 5.23 (t, 1H), 4.49 (d, 2H), 4.06 (t, 2H), 1.72 (m, 2H), 1.26 (m, 2H), 0.88 (t, 3H).

MS: (M+H)+=155.2.

Preparation 9de: [1-(3-Methylbutyl)-1H-pyrazol-5-yl]methanol Step A

Using 1-bromo-3-methyl-butane in General Procedure 9F 1-(3-methylbutyl)-1H-pyrazole was obtained.

1H NMR (400 MHz, DMSO-d6): 7.71 (d, 1H), 7.40 (d, 1H), 6.20 (t, 1H), 4.11 (t, 2H), 1.65 (q, 2H), 1.44 (h, 1H), 0.89 (d, 6H).

Step B

Starting from 1-(3-methylbutyl)-1H-pyrazole using General Procedure 9H the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 7.30 (d, 1H), 6.12 (d, 1H), 5.25 (t, 1H), 4.49 (d, 2H), 4.08 (m, 2H), 1.63 (m, 2H), 1.55 (h, 1H), 0.90 (d, 6H).

Preparation 9df: [1-(Cyclopropylmethyl)-1H-pyrazol-5-yl]methanol

Starting from 1-(cyclopropylmethyl)-1H-pyrazole using General Procedure 9H the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 7.31 (d, 1H), 6.14 (d, 1H), 5.26 (t, 1H), 4.51 (d, 2H), 3.96 (d, 2H), 1.24 (m, 1H), 0.51-0.24 (m, 4H).

MS: (M+H)+=153.2.

Preparation 9dg: (1-Cyclopentyl-1H-pyrazol-5-yl)methanol Step A

Using bromocyclopentane in General Procedure 9G 1-cyclopentyl-1H-pyrazole was obtained.

Step B

Starting from 1-cyclopentyl-1H-pyrazole using General Procedure 9H the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 7.31 (d, 1H), 6.11 (d, 1H), 5.20 (t, 1H), 4.77 (p, 1H), 4.51 (d, 2H), 1.99 (m, 2H), 1.91 (m, 2H), 1.82 (m, 2H), 1.61 (m, 2H).

MS: (M+H)+=167.2.

Preparation 9dh: (1-Cyclohexyl-1H-pyrazol-5-yl)methanol Step A

Using bromocyclohexane in General Procedure 9G 1-cyclohexyl-1H-pyrazole was obtained.

MS: (M+H)+=151.2.

Step B

Starting from 1-cyclohexyl-1H-pyrazole using General Procedure 9H the title product was obtained.

1H NMR (400 MHz, CDCl3): 7.44 (s, 1H), 6.17 (s, 1H), 4.70 (d, 2H), 4.20 (m, 1H), 2.05-1.21 (m, 10H).

MS: (M+H)+=181.2.

Preparation 9di: (1-(Tetrahydro-2H-pyran-4-yl)-1H-pyrazol-5-yl)methanol Step A

The mixture of 596 mg pyrazole (8.75 mmol), 2.89 g 4-bromo-tetrahydropyran (17.5 mmol) and 1.47 g sodium hydrogen carbonate (17.5 mmol) was stirred at 120° C. for 10 days. After completion it was diluted with diethyl ether (30 mL), the precipitate was filtered off and the volatiles were removed under reduced pressure at room temperature. The crude oil was diluted with diethyl ether (20 mL) and washed with water. The aqueous phase was extracted with ethyl acetate. The combined organic layers were dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by column chromatography (eluent:dichloromethane:ethanol=100:1) to give 1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazole.

MS: (M+H)+=153.2.

Step B

Starting from 1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazole using General Procedure 9H the title product was obtained.

1H NMR (400 MHz, CDCl3): 7.46 (d, 1H), 6.19 (d, 1H), 4.71 (s, 2H), 4.46 (m, 1H), 4.12 (dd, 2H), 3.55 (m, 2H), 2.34 (m, 2H), 1.88 (m, 2H).

MS: (M+H)+=183.1.

Preparation 9dj: {1-[2-(Dimethylamino)ethyl]-1H-pyrazol-5-yl]methanol Step A

The mixture of 5 g 1H-pyrazole (79.44 mmol), 11.64 g 2-chloro-N,N-dimethylethylamine hydrochloride (80.79 mmol) and 30.0 g potassium carbonate (220.32 mmol) in 100 mL DMF was stirred at 60° C. for 14 hours. After completion the volatiles were removed under reduced pressure. The residue was diluted with chloroform (100 mL) and washed with water. The organic layer was dried over Na2SO4 and concentrated under reduced pressure. The residue was diluted with ethanol (20 mL) and 34 mL HCl (5N in EtOH) was added. The precipitate was filtered off, washed with diethyl ether and dried to give N,N-dimethyl-2-(1H-pyrazol-1-yl)-ethanamine.

MS: (M+H)+=140.2.

Step B

Starting from N,N-dimethyl-2-(1H-pyrazol-1-yl)-ethanamine using General Procedure 9H the title product was obtained.

1H NMR (400 MHz, CDCl3): 7.47 (br s, 1H), 6.25 (br s, 1H), 4.54 (s, 2H), 4.27 (m, 2H), 2.73 (m, 2H), 2.21 (s, 6H).

MS: (M+H)+=170.1.

Preparation 9dk: [1-(4-Methoxybenzyl)-1H-pyrazol-5-yl]methanol Step A

Using 1-(bromomethyl)-4-methoxy-benzene in General Procedure 9G 1-(4-methoxybenzyl)-1H-pyrazole was obtained.

Step B

Starting from 1-(4-methoxybenzyl)-1H-pyrazole using General Procedure 9H the title product was obtained.

1H NMR (400 MHz, CDCl3): 7.47 (d, 1H), 7.14 (m, 2H), 6.85 (m, 2H), 6.24 (d, 1H), 5.35 (s, 2H), 4.60 (s, 2H), 3.78 (s, 3H).

MS: (M+H)+=219.1.

Preparation 9dl: [1-(4,4,4-Trifluorobutyl)-1H-pyrazol-5-yl]methanol Step A

Using 4-bromo-1,1,1-trifluoro-butane in General Procedure 9F 1-(4,4,4-trifluorobutyl)-1H-pyrazole was obtained.

1H NMR (400 MHz, DMSO-d6): 7.75 (d, 1H), 7.46 (d, 1H), 6.24 (t, 1H), 4.19 (t, 2H), 2.26-2.13 (m, 2H), 1.98 (m, 2H).

Step B

Starting from 1-(4,4,4-trifluorobutyl)-1H-pyrazole using General Procedure 9H the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 7.36 (d, 1H), 6.16 (d, 1H), 5.29 (br s, 1H), 4.50 (d, 2H), 4.16 (t, 2H), 2.31-2.18 (m, 2H), 1.99 (m, 2H).

Preparation 9dm: (1-Pentyl-1H-pyrazol-5-yl)methanol Step A

Using 1-bromopentane in General Procedure 9F 1-pentyl-1H-pyrazole was obtained.

1H NMR (400 MHz, DMSO-d6): 7.70 (d, 1H), 7.41 (d, 1H), 6.20 (t, 1H), 4.08 (t, 2H), 1.75 (p, 2H), 1.28 (m, 2H), 1.17 (m, 2H), 0.84 (t, 3H).

Step B

Starting from 1-pentyl-1H-pyrazole using General Procedure 9H the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 7.31 (d, 1H), 6.12 (d, 1H), 5.25 (t, 1H), 4.49 (d, 2H), 4.05 (t, 2H), 1.74 (p, 2H), 1.34-1.17 (m, 4H), 0.86 (t, 3H).

Preparation 9dn and Preparation 9do: (1R or S)-1-(1-pentyl-1H-pyrazol-5-yl)ethanol and (1S or R)-1-(1-pentyl-1H-pyrazol-5-yl)ethanol

To the solution of 2.00 g 1-pentyl-1H-pyrazole (Preparation 9dm, Step A, 14.47 mmol) in 30 mL dry THF 10 mL n-BuLi (1.6 M, 16 mmol) was added dropwise at −78° C. and the mixture was stirred for 1 h at this temperature, then 848 mg acetaldehyde (20.0 mmol) was added dropwise and stirred for 90 min at −78° C. The mixture was poured into cooled saturated aq. NH4Cl solution. Phases were separated; the aqueous phase was extracted with EtOAc. The combined organic layers were dried over MgSO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and EtOAc as eluents to give 1-(2-pentylpyrazol-3-yl)ethanol.

1H NMR (400 MHz, DMSO-d6): 7.30 (d, 1H), 6.11 (d, 1H), 5.24 (d, 1H), 4.80 (m, 1H), 4.08 (m, 2H), 1.75 (p, 2H), 1.41 (d, 3H), 1.35-1.15 (m, 4H), 0.86 (t, 3H).

The enantiomers were separated via chiral chromatography column: AD, eluents: heptane/EtOH. The product eluting earlier was collected as Preparation 9dn, and the product eluting later was collected as Preparation 9do.

Preparation 9dp: [1-(2-Methoxyethyl)-1H-pyrazol-5-yl]methanol Step A

Starting from 5-(dimethoxymethyl)-1H-pyrazole (Preparation 9a5) and 1-bromo-2-methoxy-ethane using General Procedure 9F 5-(dimethoxymethyl)-1-(2-methoxyethyl)-1H-pyrazole was obtained.

1H NMR (400 MHz, DMSO-d6): 7.40 (d, 1H), 6.25 (d, 1H), 5.62 (s, 1H), 4.25 (t, 2H), 3.65 (t, 2H), 3.24 (s, 6H), 3.22 (s, 3H).

Note: 3-(dimethoxymethyl)-1-(2-methoxyethyl)-1H-pyrazole was also obtained.

1H NMR (400 MHz, DMSO-d6): 7.65 (d, 1H), 6.18 (d, 1H), 5.33 (s, 1H), 4.22 (t, 2H), 3.65 (t, 2H), 3.24 (s, 6H), 3.21 (s, 3H).

Step B

Starting from 5-(dimethoxymethyl)-1-(2-methoxyethyl)-1H-pyrazole using General Procedure 9B the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 7.33 (d, 1H), 6.13 (d, 1H), 5.22 (t, 1H), 4.50 (d, 2H), 4.24 (t, 2H), 3.65 (t, 2H), 3.20 (s, 3H).

Preparation 9dg: [1-(3-Methoxypropyl)-1H-pyrazol-5-yl]methanol Step A

Starting from 5-(dimethoxymethyl)-1H-pyrazole (Preparation 9a5) and 1-bromo-3-methoxy-propane using General Procedure 9F 5-(dimethoxymethyl)-1-(3-methoxypropyl)-1H-pyrazole was obtained.

1H NMR (400 MHz, DMSO-d6): 7.40 (d, 1H), 6.25 (d, 1H), 5.59 (s, 1H), 4.12 (t, 2H), 3.29 (t, 2H), 3.25 (s, 6H), 3.23 (s, 3H), 1.96 (m, 2H).

Note: 3-(dimethoxymethyl)-1-(3-methoxypropyl)-1H-pyrazole was also obtained.

1H NMR (400 MHz, DMSO-d6): 7.66 (d, 1H), 6.18 (d, 1H), 5.33 (s, 1H), 4.11 (t, 2H), 3.25 (t, 2H), 3.23 (s, 6H), 3.21 (s, 3H), 1.97 (m, 2H).

Step B

Starting from 5-(dimethoxymethyl)-1-(3-methoxypropyl)-1H-pyrazole using General Procedure 9B the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 7.33 (d, 1H), 6.13 (d, 1H), 5.24 (t, 1H), 4.48 (d, 2H), 4.11 (t, 2H), 3.28 (t, 2H), 3.22 (s, 3H), 1.97 (m, 2H).

Preparation 9dr: [1-(2-Ethoxyethyl)-1H-pyrazol-5-yl]methanol Step A

Starting from 5-(dimethoxymethyl)-1H-pyrazole (Preparation 9a5) and 1-bromo-2-ethoxy-ethane using General Procedure 9F 5-(dimethoxymethyl)-1-(2-ethoxyethyl)-1H-pyrazole was obtained.

1H NMR (400 MHz, DMSO-d6): 7.40 (d, 1H), 6.25 (d, 1H), 5.65 (s, 1H), 4.24 (t, 2H), 3.68 (t, 2H), 3.38 (m, 2H), 3.24 (s, 6H), 1.06 (t, 3H).

Note: 3-(dimethoxymethyl)-1-(2-ethoxyethyl)pyrazole was also obtained.

1H NMR (400 MHz, DMSO-d6): 7.65 (d, 1H), 6.19 (d, 1H), 5.33 (s, 1H), 4.21 (t, 2H), 3.69 (t, 2H), 3.39 (q, 2H), 3.24 (s, 6H), 1.05 (t, 3H).

Step B

Starting from 5-(dimethoxymethyl)-1-(2-ethoxyethyl)-1H-pyrazole using General Procedure 9B the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 7.33 (d, 1H), 6.13 (d, 1H), 5.20 (t, 1H), 4.51 (d, 2H), 4.23 (t, 2H), 3.68 (t, 2H), 3.38 (q, 2H), 1.05 (t, 3H).

Preparation 9ds: {1-[2-(2-Methoxyethoxy)ethyl]-1H-pyrazol-5-yl}methanol Step A

Starting from 5-(dimethoxymethyl)-1H-pyrazole (Preparation 9a5) and 1-(2-bromoethoxy)-2-methoxy-ethane using General Procedure 9F 5-(dimethoxymethyl)-1-[2-(2-methoxyethoxy)ethyl]-1H-pyrazole was obtained.

1H NMR (400 MHz, DMSO-d6): 7.40 (d, 1H), 6.25 (d, 1H), 5.67 (s, 1H), 4.25 (t, 2H), 3.72 (t, 2H), 3.47 (m, 2H), 3.39 (m, 2H), 3.25 (s, 6H), 3.21 (s, 3H).

Note: 3-(dimethoxymethyl)-1-[2-(2-methoxyethoxy)ethyl]-1H-pyrazole was also obtained.

1H NMR (400 MHz, DMSO-d6): 7.66 (d, 1H), 6.19 (d, 1H), 5.33 (s, 1H), 4.22 (t, 2H), 3.74 (t, 2H), 3.48 (m, 2H), 3.39 (m, 2H), 3.24 (s, 6H), 3.21 (s, 3H).

Step B

Starting from 5-(dimethoxymethyl)-1-[2-(2-methoxyethoxy)ethyl]-1H-pyrazole using General Procedure 9B the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 7.33 (d, 1H), 6.13 (d, 1H), 5.19 (t, 1H), 4.51 (d, 2H), 4.24 (t, 2H), 3.72 (t, 2H), 3.46 (m, 2H), 3.38 (m, 2H), 3.20 (s, 3H).

Preparation 9dt: (1-tert-Butyl-1H-pyrazol-5-yl)methanol Step A

Starting from tert-butylhydrazine hydrochloride using General Procedure 9D 1-tert-butyl-5-(dimethoxymethyl)-1H-pyrazole was obtained.

1H NMR (400 MHz, DMSO-d6): 7.34 (d, 1H), 6.34 (d, 1H), 5.74 (s, 1H), 3.24 (s, 6H), 1.57 (s, 9H).

Note: 1-tert-butyl-3-(dimethoxymethyl)-1H-pyrazole was also obtained.

1H NMR (400 MHz, DMSO-d6): 7.75 (d, 1H), 6.18 (d, 1H), 5.34 (s, 1H), 3.24 (s, 6H), 1.50 (s, 9H).

Step B

Starting from 1-tert-butyl-5-(dimethoxymethyl)-1H-pyrazole using General Procedure 9B the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 7.27 (d, 1H), 6.19 (d, 1H), 5.31 (t, 1H), 4.61 (d, 2H), 1.56 (s, 9H).

Preparation 9du: [1-(2,2,2-Trifluoroethyl)-1H-pyrazol-5-yl]methanol Step A

Starting from 2,2,2-trifluoroethylhydrazine (70 w/w % in water) using General Procedure 9D in absence of sodium methoxide 5-(dimethoxymethyl)-1-(2,2,2-trifluoroethyl)-4,5-dihydro-1H-pyrazol-5-ol was obtained.

1H NMR (400 MHz, DMSO-d6): 6.83 (t, 1H), 6.03 (s, 1H), 4.30 (s, 1H), 3.95 (m, 1H), 3.47 (m, 1H), 3.40 (d, 6H), 2.88 (m, 1H), 2.50 (m, 1H).

Step B

Starting from 5-(dimethoxymethyl)-1-(2,2,2-trifluoroethyl)-4,5-dihydro-1H-pyrazol-5-ol using General Procedure 9B the title product was obtained.

1H NMR (400 MHz, DMSO-d6): 7.48 (d, 1H), 6.27 (d, 1H), 5.46 (t, 1H), 5.08 (q, 2H), 4.56 (d, 2H).

Preparation 9dv: [1-(cyclohexylmethyl)-1H-pyrazol-5-yl]methanol and Preparation 9dw: [1-(cyclohexylmethyl)-1H-pyrazol-3-yl]methanol Step A

Starting from cyclohexylmethylhydrazine hydrochloride using General Procedure 9D 1-(cyclohexylmethyl)-5-(dimethoxymethyl)-1H-pyrazole was obtained. This product eluted first.

1H NMR (400 MHz, DMSO-d6): 7.38 (d, 1H), 6.25 (d, 1H), 5.59 (s, 1H), 3.91 (d, 2H), 3.24 (s, 6H), 1.89 (m, 1H), 1.66 (m, 2H), 1.61 (m, 2H), 1.48 (d, 2H), 1.16 (m, 2H), 0.95 (dd, 2H).

Note: The secondly eluted product was the 1-(cyclohexylmethyl)-3-(dimethoxymethyl)-1H-pyrazole.

1H NMR (400 MHz, DMSO-d6): 7.64 (d, 1H), 7.17 (d, 1H), 5.33 (s, 1H), 3.91 (d, 2H), 3.23 (s, 6H), 1.77 (m, 1H), 1.66 (m, 2H), 1.60 (m, 2H), 1.47 (d, 2H), 1.16 (m, 2H), 0.92 (dd, 2H).

Step B1

Starting from 1-(cyclohexylmethyl)-5-(dimethoxymethyl)-1H-pyrazole using General Procedure 9B [1-(cyclohexylmethyl)-1H-pyrazol-5-yl]methanol was obtained.

1H NMR (400 MHz, DMSO-d6): 7.31 (d, 1H), 6.12 (d, 1H), 5.24 (t, 1H), 4.48 (d, 2H), 3.90 (d, 2H), 1.84 (m, 1H) 1.69-1.55 (m, 3H), 1.49 (m, 2H), 1.15 (m, 3H), 0.96 (m, 2H).

Step B2

Starting from 1-(cyclohexylmethyl)-3-(dimethoxymethyl)-1H-pyrazole using General Procedure 9B [1-(cyclohexylmethyl)-1H-pyrazol-3-yl]methanol was obtained.

1H NMR (400 MHz, DMSO-d6): 7.56 (d, 1H), 6.13 (d, 1H), 4.94 (t, 1H), 4.37 (d, 2H), 3.85 (d, 2H), 1.75 (m, 1H) 1.69-1.56 (m, 3H), 1.49 (m, 2H), 1.15 (m, 3H), 0.91 (m, 2H).

Preparation 9ea: [6-(2-Furyl)-2-pyridyl]methanol

To the solution of 940 mg (6-bromo-2-pyridyl)methanol (5.00 mmol) in 20 mL dioxane 1.94 g 2-(2-furyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (10.0 mmol), 4.89 g Cs2CO3 (15.0 mmol) and 577 mg tetrakis(triphenylphosphine)palladium(0) (0.50 mmol) were added, and it was stirred under N2 at 70° C. for 16 h. The reaction mixture was concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and ethyl-acetate as eluents to give the title product.

MS: (M+H)+=176.2.

Preparation 9eb: [6-(2-Thienyl)-2-pyridyl]methanol

To the solution of 624 mg (6-bromo-2-pyridyl)methanol (3.30 mmol) in 15 mL dioxane 850 mg 2-thienylboronic acid (6.60 mmol), 3.25 g Cs2CO3 (10.0 mmol) and 385 mg tetrakis(triphenylphosphine)palladium(0) (0.33 mmol) were added, and it was stirred under N2 at 70° C. for 16 h. The reaction mixture was concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and ethyl-acetate as eluents to give the title product.

MS: (M+H)+=192.2.

Preparation 9ec: (1-Butyl-1H-1,2,3-triazol-5-yl)methanol Step A

To the solution of 690 mg 1H-[1,2,3]triazole (10.0 mmol) in 5 mL DMF 1.50 g K2CO3 (11.0 mmol) and 1.50 g bromobutane (11.0 mmol) were added and the mixture was stirred at room temperature for 16 h. The reaction mixture was poured into 50 mL water and extracted with DCM. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The regioisomers were separated via flash chromatography using heptane and EtOAc as eluents: 2-butyl-2H-[1,2,3]triazole eluted first then 1-butyl-1H-[1,2,3]triazole.

1H NMR (400 MHz, DMSO-d6) of 1-butyl-1H-[1,2,3]triazole: 7.62 (m, 1H), 7.53 (m, 1H), 4.32 (m, 2H), 1.82 (m, 2H), 1.27 (m, 2H), 0.87 (m, 3H).

Step B

To the cooled solution of 428 mg 1-butyl-1H-[1,2,3]triazole (3.40 mmol) in 15 mL THF under N2 2.35 mL BuLi (1.6M, 3.74 mmol) was added at −78° C., and it was stirred for 15 min, then 0.300 mL DMF (3.74 mmol) was added. The reaction mixture was stirred at room temperature for 24 h. It was poured onto 50 mL ice-water, and extracted with EtOAc. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The residue was dissolved in 20 mL EtOH and 250 mg sodium borohydride (6.50 mmol) was added at 0° C. and stirred for 1 h at this temperature, then it was stirred at room temperature for 16 h. Then 1 mL water was added, and the volatiles were removed under reduced pressure. The residue was diluted with EtOAc and washed with brine. The organic phase was dried over Na2SO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and EtOAc as eluents to give the title product.

1H NMR (400 MHz, DMSO-d6): 7.59 (s, 1H), 5.46 (t, 1H), 4.58 (d, 2H), 4.32 (t, 2H), 1.79 (m, 2H), 1.29 (m, 2H), 0.90 (m, 3H).

Preparation 9ed: [1-(3-Methoxypropyl)-1H-1,2,3-triazol-5-yl]methanol Step A

To the solution of 690 mg 1H-[1,2,3]triazole (10.0 mmol) in 5 mL acetonitrile 1.50 g

K2CO3 (11.0 mmol) and 1.68 g 1-bromo-3-methoxy-propane (11.0 mmol) were added and the mixture was stirred at room temperature for 24 h. The reaction mixture was filtered and concentrated under reduced pressure. The regioisomers were separated via flash chromatography using heptane and EtOAc as eluents: 2-(3-methoxypropyl)-1H-[1,2,3]triazole eluted first then 1-(3-methoxypropyl)-1H-[1,2,3]triazole.

1H NMR (400 MHz, DMSO-d6) of 1-(3-methoxypropyl)-1H-[1,2,3]triazole: 8.12 (d, 1H), 7.72 (d, 1H), 4.42 (t, 2H), 3.29 (t, 2H), 3.23 (s, 3H), 2.04 (m, 2H).

Step B

To the cooled solution of 378 mg 1-(3-methoxypropyl)-1H-[1,2,3]triazole (2.70 mmol) in 12 mL THF under N2 1.90 mL BuLi (1.6M, 3.04 mmol) was added at −78° C., and it was stirred for 30 min, then 0.220 mL DMF (3.00 mmol) was added. The reaction mixture was stirred at room temperature for 4 h. It was poured onto 40 mL ice-water, and extracted with EtOAc. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The residue was dissolved in 16 mL EtOH and 200 mg sodium borohydride (5.29 mmol) was added at 0° C. and stirred for 1 h at this temperature, then it was stirred at room temperature for 16 h. Then 1 mL water was added, and the volatiles were removed under reduced pressure. The residue was diluted with EtOAc and washed with brine. The organic phase was dried over Na2SO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and EtOAc as eluents to give the title product.

1H NMR (400 MHz, DMSO-d6): 7.60 (s, 1H), 5.46 (t, 1H), 4.57 (d, 2H), 4.37 (t, 2H), 3.31 (t, 2H), 3.23 (s, 3H), 2.04 (m, 2H).

Preparation 9ee: (1-Phenyl-1H-1,2,3-triazol-5-yl)methanol Step A: (Tang, Bo-Xiao et al Synthesis 2008, 1707)

The mixture of 207 mg 1H-[1,2,3]triazole (3.00 mmol), 735 mg iodobenzene (3.60 mmol), 57 mg copper(I)oxide (0.60 mmol), 216 mg 1,10-phenantroline (1.20 mmol), and 2.35 g TBAF hydrate (9.00 mmol) was heated at 115° C. for 22 h under argon. The reaction mixture was diluted with EtOAc and washed with brine. The organic phase was dried over Na2SO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and EtOAc as eluents to give 1-phenyl-1H-[1,2,3]triazole.

1H NMR (400 MHz, DMSO-d6): 8.84 (d, 1H), 7.99 (d, 1H), 7.92 (m, 2H), 7.61 (m, 2H), 7.49 (m, 1H).

Step B

To the cooled solution of 216 mg 1-phenyl-1H-[1,2,3]triazole (1.50 mmol) in 7 mL THF under N2 1.00 mL BuLi (1.6M, 1.60 mmol) was added at −78° C., and it was stirred for 15 min, then 0.130 mL DMF (1.63 mmol) was added. The reaction mixture was stirred at room temperature for 90 min. It was poured onto 30 mL ice-water, and extracted with EtOAc. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The residue was dissolved in 9 mL EtOH and 111 mg sodium borohydride (2.94 mmol) was added at 0° C. and stirred for 1 h at this temperature, then it was stirred at room temperature for 16 h. Then 1 mL water was added and the reaction mixture was concentrated under reduced pressure. The residue was diluted with EtOAc and washed with brine. The organic phase was dried over Na2SO4 and concentrated under reduced pressure to give the title product.

MS: (M+H)+=176.2.

Preparation 9ef: [1-(2-Methoxyethyl)-1H-1,2,3-triazol-5-yl]methanol Step A

To the solution of 2.50 g ethyl 1H-[1,2,3]triazole-5-carboxylate (17.7 mmol) in 20 mL acetonitrile and in 3 mL DMF 3.19 g K2CO3 (23.1 mmol) and 3.20 g 1-bromo-2-methoxy-ethane (23.1 mmol) were added and the mixture was stirred at 35° C. for 24 h. Then it was filtered and concentrated under reduced pressure. The regioisomers were separated via flash chromatography using heptane and EtOAc as eluents: ethyl 2-(2-methoxyethyl)-2H-[1,2,3]triazole-4-carboxylate eluted first followed by ethyl 1-(2-methoxyethyl)-1H-1,2,3-triazole-5-carboxylate.

1H NMR (400 MHz, DMSO-d6) of ethyl 1-(2-methoxyethyl)-1H-1,2,3-triazole-5-carboxylate: 8.22 (s, 1H), 4.59 (t, 2H), 4.43 (q, 2H), 3.76 (t, 2H), 3.36 (s, 3H), 1.42 (t, 3H).

Step B

To the solution of 223 mg ethyl 1-(2-methoxyethyl)-1H-1,2,3-triazole-5-carboxylate (1.12 mmol) in 5 mL EtOH 105 mg sodium borohydride (2.78 mmol) was added at 0° C. and the mixture was stirred for 1 h at this temperature, then it was stirred at room temperature for 16 h. Then 1 mL water was added, and the reaction mixture was concentrated under reduced pressure. The residue was digerated with DCM, the solids were filtered off and the filtrate was concentrated under reduced pressure to give the title product as yellow oil.

1H NMR (400 MHz, DMSO-d6): 7.64 (s, 1H), 4.69 (s, 2H), 4.61 (t, 2H), 3.85 (t, 2H), 3.37 (s, 3H).

Preparation 9eg: 4-(2-Hydroxyethyl)-1-methyl-piperazin-2-one

To the mixture of 450 mg 1-methylpiperazin-2-one (3.00 mmol) and 1.00 g K2CO3 (7.24 mmol) in 5 mL THF 1 mL 2-bromoethanol (14.1 mmol) was added and the mixture was stirred at 65° C. for 16 h. The mixture was cooled to room temperature, filtered and concentrated under reduced pressure. The residue was purified via flash chromatography using DCM and MeOH to give 4-(2-hydroxyethyl)-1-methyl-piperazin-2-one.

MS: (M+H)+=159.4.

Preparation 9eh: 2-[4-(2,2,2-Trifluoroethyl)piperazin-1-yl]ethanol Step A

To a solution of 5.208 g 2-piperazin-1-ylethanol (40 mmol) in 250 mL dry ethanol 8.063 g 4-dimethylaminopyridine (66 mmol) and 12.1 mL (2,2,2-trifluoroacetyl) 2,2,2-trifluoroacetate (87 mmol) was added in portions and the mixture was stirred at room temperature until no further conversion was observed. The mixture was concentrated under reduced pressure and purified via flash chromatography using EtOAc and MeOH as eluents to give 2,2,2-trifluoro-1-[4-(2-hydroxyethyl)piperazin-1-yl]ethanone.

Step B

To a mixture of 3.300 g 2,2,2-trifluoro-1-[4-(2-hydroxyethyl)piperazin-1-yl]ethanone (14.6 mmol) and 1.988 g imidazole (29.2 mmol) in 50 mL THF 4.7 mL chloro(triisopropyl)silane (21.9 mmol) was added dropwise and it was stirred at room temperature until no further conversion was observed. Then the volatiles were evaporated under reduced pressure and the residue was purified via flash chromatography using heptane and EtOAc as eluents to give 2,2,2-trifluoro-1-[4-(2-triisopropylsilyloxyethyl)piperazin-1-yl]ethanone.

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 166 (5), 195 (100), 339 (11), 382 (1, [M+]).

Step C

To a solution of 1.55 g 2,2,2-trifluoro-1-[4-(2-triisopropylsilyloxyethyl)piperazin-1-yl]ethanone (4.0 mmol) in 15 mL THF 12 mL BH3×THF (1.0 M in THF, 12 mmol) was added with stirring and it was heated at 45° C. until no further conversion was observed. The mixture was cooled to room temperature, the excess of BH3 was decomposed by the addition of MeOH. The volatiles were evaporated under reduced pressure and the residue was co-evaporated with MeOH again. Then the crude product was purified via flash chromatography using heptane and EtOAc as eluents to give triisopropyl-[2-[4-(2,2,2-trifluoroethyl)piperazin-1-yl]ethoxy]silane.

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 138 (7), 165 (5), 181 (100) 325 (9), 368 (4, [M+]).

Step D

To a solution of 0.536 g triisopropyl-[2-[4-(2,2,2-trifluoroethyl)piperazin-1-yl]ethoxy]silane (1.45 mmol) in 10 mL THF 1.52 mL TBAF (1.0 M in THF) was added and it was stirred at room temperature until no further conversion was observed. The volatiles were evaporated under reduced pressure and the residue was purified via flash chromatography using EtOAc and MeOH as eluents to give the title product.

1H NMR (400 MHz, CDCl3): 3.64 (t, 2H), 3.06 (br s, 2H), 2.98 (q, 2H), 2.78-2.68 (m, 4H), 2.63-2.53 (m, 5H).

Preparation 9ei: 2-[4-(2,2-Difluoroethyl)piperazin-1-yl]ethanol Step A

To a solution of 3.254 g 2-piperazin-1-ylethanol (25 mmol) in 60 mL dry ethanol 7.82 g 4-dimethylaminopyridine (64 mmol) and 8 mL (2,2-difluoroacetyl) 2,2-difluoroacetate (64 mmol) was added and stirred at room temperature. Later a second portion of 7.82 g 4-dimethylaminopyridine (64 mmol) and 8 mL (2,2-difluoroacetyl) 2,2-difluoroacetate (64 mmol) were added and the mixture was stirred at room temperature until no further conversion was observed. The mixture was concentrated under reduced pressure and purified via flash chromatography using EtOAc and MeOH as eluents to give 2,2-difluoro-1-[4-(2-hydroxyethyl)piperazin-1-yl]ethanone.

Step B

1.800 g 2,2-difluoro-1-[4-(2-hydroxyethyl)piperazin-1-yl]ethanone (8.65 mmol) and 1.178 g imidazole (17.3 mmol) were dissolved in 25 mL THF and 2.8 mL chloro(triisopropyl)silane (13.0 mmol) was added dropwise to the solution, which was stirred at room temperature until no further conversion was observed. Then the volatiles were evaporated under reduced pressure and the residue was purified via flash chromatography using heptane and EtOAc as eluents to give 2,2-difluoro-1-[4-(2-triisopropylsilyloxyethyl)piperazin-1-yl]ethanone.

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 148 (4), 177 (100), 321 (5), 364 (1, [M+]).

Step C

To a solution of 1.40 g 2,2-difluoro-1-[4-(2-triisopropylsilyloxyethyl)piperazin-1-yl]ethanone (3.84 mmol) in 15 mL THF 7.7 mL BH3×THF (1.0 M in THF) was added with stirring and the mixture was heated at 45° C. until no further conversion was observed. After cooling to room temperature the excess of BH3 was decomposed by the addition of MeOH. The volatiles were evaporated under reduced pressure and the residue was co-evaporated with MeOH again. Then the crude product was purified via flash chromatography using heptane and EtOAc as eluents to give 2-[4-(2,2-difluoroethyl)piperazin-1-yl]ethoxy-triisopropyl-silane.

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 59 (5), 70 (7), 97 (5), 120 (9), 147 (3), 163 (100), 307 (3) 350 (1, [M+]).

Step D

To a solution of 0.547 g 2-[4-(2,2-difluoroethyl)piperazin-1-yl]ethoxy-triisopropyl-silane (1.56 mmol) in 10 mL THF 1.64 mL TBAF (1.0 M in THF) was added and the mixture was stirred at room temperature until no further conversion was observed. The volatiles were evaporated under reduced pressure and the residue was purified via flash chromatography using EtOAc and MeOH as eluents to give the title product.

1H NMR (400 MHz, CDCl3): 5.87 (tt, 1H), 3.60 (t, 2H), 2.74 (td, 2H), 2.66-2.41 (m, 10H).

Preparation 9ej: [2-[4-Methoxy-2-(trifluoromethyl)phenyl]pyrimidin-4-yl]methanol Step A: N′-Hydroxy-4-methoxy-2-(trifluoromethyl)benzamidine

1 eq. hydroxylamine hydrochloride was dissolved in MeOH (1 ml/mmol) and 1 eq. NaHCO3 was added. The mixture was stirred at room temperature for 20 min, then (4-methoxy-2-(trifluoromethyl)benzonitrile was added and the mixture was heated to reflux until no further conversion was observed. MeOH was partially evaporated, residue was filtered and dried under reduced pressure.

Step B: 4-(Dimethoxymethyl)-2-[4-methoxy-2-(trifluoromethyl)phenyl]pyrimidine

Using General Procedure 9C and this intermediate, 4-(dimethoxymethyl)-2-[4-methoxy-2-(trifluoromethyl)phenyl[pyrimidine was obtained.

HRMS calculated for C15H15N2O3F3: 328.1035, found: 329.1099 (M+H).

1H NMR (500 MHz, DMSO-d6): 3.35 (s, 6H), 3.91 (s, 3H), 5.31 (s, 1H), 7.35 (m, 1H), 7.36 (m, 1H) 7.54 (d, 1H), 7.75 (d, 1H), 8.96 (d, 1H). 13C NMR (125 MHz, DMSO-d6): δ4.1, 56.3, 103.0, 107.7, 112.9, 116.8, 124.1, 129.1, 130.6, 134.1, 158.7, 160.3, 165.0, 165.5.

Step C: [2-[4-Methoxy-2-(trifluoromethyl)phenyl]pyrimidin-4-yl]methanol

Starting from 4-(dimethoxymethyl)-2-[4-methoxy-2-(trifluoromethyl)phenyl[pyrimidine using General Procedure 9A Preparation 9ej was obtained.

MS: (M+H)+=285.2.

Preparation 9ek: [1-(4-Pyridylmethyl)pyrazol-5-yl]methanol Step A: 4-[[5-(Dimethoxymethyl)pyrazol-1-yl]methyl]pyridine

Starting from (hydrazinomethyl)pyridine dihydrochloride using General Procedure 9D 4-[[5-(dimethoxymethyl)pyrazol-1-yl]methyl[pyridine was obtained.

1H NMR: (500 MHz, DMSO-d6): 3.17 (s, 6H), 5.40 (s, 2H), 5.55 (s, 1H), 6.37 (d, 1h), 7.02 (d, 2H), 7.51 (d, 1H), 8.50 (d, 2H). 13C NMR (125 MHz, DMSO-d6): δ2.2, 53.3, 97.3, 106.7, 122.3, 139.0, 140.0, 147.1, 150.1.

Step B: [2-(4-Pyridylmethyl)pyrazol-3-yl]methanol

Starting from 4-[5-(dimethoxymethyl)pyrazol-1-yl]pyridine using General Procedure 9B Preparation 9ek was obtained.

1H NMR: (500 MHz, DMSO-d6)=4.46 (d, 2H), 5.35 (br, 1H), 5.40 (s, 2H), 6.25 (d, 1H), 7.04 (dm, 2H), 7.43 (d, 1H), 8.49 (dm, 2H). 13C NMR: (125 MHz, DMSO-d6)=51.6, 54.3, 105.9, 122.4, 138.9, 143.5, 147.2, 150.1.

Preparation 9el: [1-(2-Methoxyphenyl)pyrazol-3-yl]methanol and Preparation 9em: [1-(2-Methoxyphenyl)pyrazol-5-yl]methanol Step A: 3-(Dimethoxymethyl)-1-(2-methoxyphenyl)pyrazole and 5-(dimethoxymethyl)-1-(2-methoxyphenyl)pyrazole

Starting from 2-methoxyphenylhydrazine hydrochloride using General Procedure 9D 3-(dimethoxymethyl)-1-(2-methoxyphenyl)pyrazole was obtained as the product eluting first.

MS: (M+H)+=249.2.

The product eluting second was 3-(dimethoxymethyl)-2-(2-methoxyphenyl)pyrazole.

MS: (M+H)+=249.2.

Step B1: [1-(2-Methoxyphenyl)pyrazol-3-yl]methanol

Starting from 3-(dimethoxymethyl)-1-(2-methoxyphenyl)pyrazole using General Procedure 9B [1-(2-methoxyphenyl)pyrazol-3-yl]methanol was obtained as Preparation 9el.

1H NMR (400 MHz, CDCl3): 8.08 (d, 1H), 7.60 (dd, 1H), 7.34 (m, 1H), 7.23 (m, 1H), 7.06 (td, 1H), 6.42 (d, 1H), 5.13 (t, 1H), 4.49 (d, 2H), 3.86 (s, 3H).

Step B2: [1-(2-Methoxyphenyl)pyrazol-5-yl]methanol

Starting from 5-(dimethoxymethyl)-1-(2-methoxyphenyl)pyrazole using General Procedure 9B [1-(2-methoxyphenyl)pyrazol-5-yl]methanol was obtained as Preparation 9em.

1H NMR (400 MHz, CDCl3): 7.55 (d, 1H), 7.47 (m, 1H), 7.30 (m, 1H), 7.21 (m, 1H), 7.07 (td, 1H), 6.35 (m, 1H), 5.14 (t, 1H), 4.28 (d, 2H), 3.75 (s, 3H).

Preparation 9en: [1-[(2-Methoxyphenyl)methyl]pyrazol-5-yl]methanol and Preparation 9eo: [1-[(2-Methoxyphenyl)methyl]pyrazol-3-yl]methanol Step A: 5-(Dimethoxymethyl)-1-[(2-methoxyphenyl)methyl]pyrazole and 3-(dimethoxymethyl)-1-[(2-methoxyphenyl) methyl]pyrazole

Starting from (2-methoxyphenyl)methylhydrazine hydrochloride using General Procedure 9D 5-(dimethoxymethyl)-1-[(2-methoxyphenyl)methyl]pyrazole was obtained as the product eluting first.

1H NMR (500 MHz, DMSO-d6): 3.19 (s, 6H), 3.83 (s, 3H), 5.28 (s, 2H), 5.53 (s, 1H), 6.33 (d, 1H), 6.56 (dm 1H), 6.84 (m, 1H), 7.01 (dm, 1H), 7.25 (m, 1H), 7.46 (d, 1H).

13C NMR (500 MHz, DMSO-d6): 48.2, 53.1, 55.2, 97.2, 106.2, 111.0, 120.7, 128.0, 129.1, 138.5.

The product eluting second was 3-(dimethoxymethyl)-1-[(2-methoxyphenyl) methyl]pyrazole.

1H NMR (500 MHz, DMSO-d6): 3.23 (s, 6H), 3.82 (s, 3H), 5.25 (s, 2H), 5.33 (s, 1H), 6.22 (d, 1H), 6.82 (dm, 1H), 6.89 (m, 1H), 7.03 (dm, 1H), 7.29 (m, 1H), 7.69 (d, 1H). 13C NMR (500 MHz, DMSO-d6): δ0.5, 52.9, 55.9, 99.8, 104.0, 111.3, 120.8, 129.0, 129.6, 131.6.

Step B1: [2-[(2-Methoxyphenyl)methyl]pyrazol-3-yl]methanol

Starting from 5-(dimethoxymethyl)-1-[(2-methoxyphenyl)methyl]pyrazole using General Procedure 9B [1-[(2-methoxyphenyl)methyl]pyrazol-5-yl]methanol was obtained as Preparation 9en.

1H NMR (400 MHz, CDCl3): 7.39 (d, 1H), 7.25 (m, 1H), 7.02 (m, 1H), 6.84 (m, 1H), 6.53 (m, 1H), 6.22 (d, 1H), 5.29 (m, 2H), 5.28 (m, 1H), 4.46 (d, 2H), 3.83 (s, 3H).

Step B2: [1-[(2-Methoxyphenyl)methyl]pyrazol-3-yl]methanol

Starting from 3-(dimethoxymethyl)-1-[(2-methoxyphenyl)methyl]pyrazole using General Procedure 9B [1-[(2-methoxyphenyl)methyl]pyrazol-3-yl]methanol was obtained as Preparation 9eo.

1H NMR (400 MHz, CDCl3): 7.63 (d, 1H), 7.29 (m, 1H), 7.02 (m, 1H), 6.89 (m, 2H), 6.19 (d, 1H), 5.21 (s, 2H), 4.97 (t, 1H), 4.38 (d, 2H), 3.82 (s, 3H).

Preparation 9ep: [1-(2-Ethoxyethyl)pyrazol-5-yl]methanol Step A: 5-(Dimethoxymethyl)-1-(2-ethoxyethyl)pyrazole

Starting from 5-(dimethoxymethyl)-1H-pyrazole (Preparation 9a5) and 2-bromoethyl ethyl ether using General Procedure 9F 5-(dimethoxymethyl)-1-(2-ethoxyethyl)pyrazole was obtained.

MS: (M+H)+=215.2.

Step B: [1-(2-Ethoxyethyl)pyrazol-5-yl]methanol

Starting from 5-(dimethoxymethyl)-1-(2-ethoxyethyl)pyrazole, using General Procedure 9B [2-(2-ethoxyethyl)pyrazol-3-yl]methanol (Preparation 9ep) was obtained.

HRMS calculated for C8H14N2O2: 170.1055, found: 171.1135 (M+H).

Preparation 9eq: [2-(2-Fluorophenyl)pyrimidin-4-yl]methanol Step A: 2-Fluoro-N′-hydroxy-benzamidine

11.48 g (165 mmol) hydroxylamine hydrochloride and 13.87 g (165 mmol) NaHCO3 were dissolved in 120 mL MeOH and stirred at room temperature for 30 min. 10 g (82.6 mmol) 2-fluorobenzonitrile was added and the mixture was stirred at 75° C. until no further conversion was observed. Solvent was partially evaporated, residue was filtered, washed with MeOH, filtrate was concentrated. It was diluted with water and extracted with EtOAc. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure.

Step B: 2-Fluorobenzamidine

12.67 g 2-fluoro-Ar-hydroxy-benzamidine (81.55 mmol) was dissolved in AcOH at 0° C. and 9.24 mL (97.86 mmol) Ac2O was added. Mixture was stirred at room temperature until no further conversion was observed. 630 mg 10% Pd/C was added and the mixture was stirred under 4 bar H2 until no further conversion was observed. Mixture was filtered on celite and volatiles were removed in vacuo to obtain 2-fluorobenzamidine.

MS: (M+H)+=139.4.

Step C: 4-(Dimethoxymethyl)-2-(2-fluorophenyl)pyrimidine

Starting from 2-fluorobenzamidine using General Procedure 9C 4-(dimethoxymethyl)-2-(2-fluorophenyl)pyrimidine was obtained.

MS: (M+H)+=249.2.

Step D: [2-(2-Fluorophenyl)pyrimidin-4-yl]methanol

Starting from 4-(dimethoxymethyl)-2-(2-fluorophenyl)pyrimidine using General Procedure 9A, [2-(2-fluorophenyl)pyrimidin-4-yl]methanol (Preparation 9eq) was obtained.

MS: (M+H)+=205.2.

Preparation 9er: [2-[2-(trideuteriomethoxy)phenyl]pyrimidin-4-yl]methanol Step A: N′,2-dihydroxybenzamidine

17.5 g H2N—OH×HCl (252 mmol) was dissolved in 250 mL methanol, then 21.1 g NaHCO3 (252 mmol) was added and it was stirred at rt for 30 minutes. Then 15.0 g 2-hydroxybenzonitrile (126 mmol) was added and refluxed for 5 h. The mixture was cooled to 0° C., it was filtered, and the filtrate was concentrated to dryness. 75 mL water was added and it was extracted with 3×75 mL ethylacetate. The combined organic layer was dried over MgSO4 to give light yellow-brown crystals.

MS (ESI+): 153.2

Step B: 2-[4-(dimethoxymethyl)pyrimidin-2-yl]phenol

18.0 g N′-hydroxy-2-methoxy-benzamidine (118 mmol) was dissolved in 350 mL acetic acid and 13.4 mL acetic anhydride (14.49 g, 141.9 mmol) was added dropwise at 40° C. Then it was stirred at 50° C. for 45 minutes to reach 100% conversion by HPLC. 1.26 g Pd/C (7 m/m %, Pd on C, Strem Catalog No: 46-1900) was added and the mixture was stirred under 4 bar H2 atmosphere for 4 hours to reach 100% conversion. Then it was filtered through Celite, washed with acetic acid and the filtrate was concentrated to dryness, then to the crude product 20 mL of diethylether was added and the so obtained mixture was sonicated for 10 minutes. It was filtered, precipitates were washed with 30 mL diethylether, and then precipitates were dried to give light yellow crystals. The obtained amidine acetic acid salt was used without further purification.

The crude amidine was dissolved in 350 mL methanol, then 16.0 g sodium methoxyde (295 mmol) was added portionwise at room temperature, then 28.7 g (E)-4-(dimethylamino)-1,1-dimethoxy-but-3-en-2-one (Preparation 9a1) (166 mmol) was added, and the reaction mixture was refluxed for 3 hours. The volatiles were evaporated, then 150 ml brine was added and the pH was set to 6 using 2N HCl. The mixture was extracted with 3×150 mL ethylacetate. The combined organic layers were dried over magnesium sulphate, filtered and concentrated. The crude product was purified via flash chromatography using heptane and ethylacetate as eluents to give the title compound as a light yellow oil.

MS (ESI+): 247.2

Step C: 4-(dimethoxymethyl)-2-[2-(trideuteriomethoxy)phenyl]pyrimidine

To the solution of 5.06 g 2-[4-(dimethoxymethyl)pyrimidin-2-yl]phenol (20.5 mmol) in 60 ml DMF 7.70 g cesium carbonate (23.6 mmol) was added and the reaction mixture was stirred at room temperature for 6 hours, then at 35° C. for 1 hour. Reaction mixture was concentrated under reduced pressure (55° C., 10 mbar), then 60 ml brine was added, and it was extracted with 3×60 ml ethylacetate. Combined organic layer was dried over magnesium sulphate, filtered and concentrated. The crude product was purified via flash chromatography using heptane and ethylacetate as eluents.

MS (ESI+): 264.2

Step D: [2-[2-(trideuteriomethoxy)phenyl]pyrimidin-4-yl]methanol

5N HCl (22 ml, 1.2 ml/mmol) was diluted with dioxan 22 ml (1.2 ml/mmol) then 4.81 g of 4-(dimethoxymethyl)-2-[2-(trideuteriomethoxy)phenyl]pyrimidine (18.27 mmol) was added and the reaction mixture was stirred under argon at 50° C. for 16 h to reach 98% conversion by HPLC. Reaction mixture was cooled to 0° C. The pH was adjusted to 9 by the portionwise addition of 5.6 g sodium hydroxyde (140 mmol) and K2CO3 solution (aq, 10%). At 0° C. 795 mg sodium borohydride (1.15 eq, 21 mmol) was added portionwise to the reaction mixture and it was stirred for 30 min. Then 20 ml brine was added and it was extracted with 2×60 ml of ethyl acetate. To the water phase 30 ml of saturated NH4Cl solution was added, and it was extracted with 2×60 ml of ethyl acetate again. Organic layers were combined, dried over magnesium sulphate, filtered and concentrated. The crude product was purified on ISCO 80 g silica gold column using heptane and ethylacetate as eluents to give Preparation 9er as white crystals.

MS (ESI+): 220.2

Preparation 10a: Ethyl (2R)-2-[(5Sa)-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(2-methylsulfanylpyrimidin-4-yl)methoxy]phenyl]propanoate

1.77 g ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl) propanoate (Preparation 8a) (2.5 mmol), 1.17 g (2-methylsulfanylpyrimidin-4-yl)methanol (Preparation 9aa) (7.5 mmol) and 1.97 g PPh3 (7.5 mmol) were dissolved in 50 mL dry toluene, then 1.74 g ditertbutyl azodicarboxylate (7.5 mmol) was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The toluene was evaporated under reduced pressure and the residue was purified via flash chromatography using DCM and MeOH as eluents.

1H NMR (500 MHz, DMSO-d6): 8.70 (d, 1H), 8.58 (s, 1H), 7.34 (d, 1H), 7.31 (d, 1H), 7.30 (m, 2H), 7.22 (m, 2H), 7.17 (t, 1H), 7.16 (d, 1H), 6.98 (d, 1H), 6.74 (t, 1H), 6.31 (d, 1H), 5.47 (dd, 1H), 5.17 (d, 1H), 5.11 (d, 1H), 4.20 (m, 1H), 4.16 (m, 1H), 4.06 (m, 2H), 3.12 (dd, 1H), 2.69 (m, 2H), 2.56 (dd, 1H), 2.50 (s, 3H), 2.46 (br s, 4H), 2.24 (br s, 4H), 2.10 (s, 3H), 1.86 (s, 3H), 1.06 (t, 3H).

HRMS calculated for C43H44ClFN6O5S2: 842.2487, found: 843.2660 (M+H).

Preparation 10b: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-4-(2-dimethylaminoethyloxy)-2-methyl-phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(2-methylsulfanylpyrimidin-4-yl)methoxy]phenyl]propanoate

0.975 g ethyl (2R)-2-[(5Sa)-5-[3-chloro-4-(2-dimethylaminoethyloxy)-2-methyl-phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (Preparation 8b) (1.5 mmol), 0.702 g (2-methylsulfanylpyrimidin-4-yl)methanol (Preparation 9aa) (4.5 mmol) and 1.180 g PPh3 (4.5 mmol) were dissolved in 50 mL dry toluene, then 1.036 g ditertbutyl azodicarboxylate (4.5 mmol) was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The toluene was evaporated under reduced pressure, Et2O was added, and the mixture was stirred and sonicated. The precipitated white crystals were filtered, washed with Et2O. The filtrate was concentrated and purified via flash chromatography using DCM and MeOH as eluents.

1H NMR (500 MHz, DMSO-d6): 8.69 (d, 1H), 8.60 (s, 1H), 7.34 (d, 1H), 7.30 (d, 1H), 7.30 (dd, 2H), 7.23 (t, 2H), 7.17 (d, 1H), 7.16 (t, 1H), 6.98 (d, 1H), 6.74 (t, 1H), 6.29 (dd, 1H), 5.47 (dd, 1H), 5.17 (d, 1H), 5.11 (d, 1H), 4.19 (t, 1H), 4.15 (t, 1H), 4.08 (m, 1H), 4.05 (m, 1H), 3.13 (d, 1H), 2.64 (t, 2H), 2.56 (d, 1H), 2.50 (s, 3H), 2.19 (s, 6H), 1.85 (s, 3H), 1.06 (t, 3H).

HRMS calculated for C40H39ClFN5O5S2: 787.2065, found: 788.2148 (M+H).

Preparation 10c: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(5-fluoro-2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(2-methylsulfanylpyrimidin-4-yl)methoxy]phenyl]propanoate

1.39 g ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(5-fluoro-2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (Preparation 8c) (2.00 mmol), 0.94 g (2-methylsulfanylpyrimidin-4-yl)methanol (Preparation 9aa) (6.00 mmol) and 1.57 g PPh3 (6.00 mmol) were dissolved in 40 mL dry toluene, then 1.38 g ditertbutyl azodicarboxylate (6.00 mmol) was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The toluene was evaporated under reduced pressure and the residue was purified via flash chromatography using DCM and MeOH as eluents.

1H NMR (500 MHz, DMSO-d6): 8.70 (d, 1H), 8.57 (s, 1H), 7.35 (d, 1H), 7.27 (d, 1H), 7.25 (d, 1H), 7.19 (m, 1H), 7.00 (dm, 1H), 6.81 (m, 1H), 6.35 (dm, 1H), 5.89 (dd, 1H), 5.71 (t, 1H), 5.48 (dd, 1H), 5.18 (d, 1H), 5.12 (d, 1H), 4.26 (m, 1H), 4.22 (m, 1H), 4.08 (m, 1H), 4.05 (m, 1H), 3.15 (dd, 1H), 2.50 (s, 3H), 2.50 (br s, 4H), 2.49 (dd, 1H), 2.27 (br s, 4H), 2.11 (s, 3H), 1.95 (s, 3H), 1.06 (t, 3H).

HRMS calculated for C41H42ClFN6O6S2: 832.2280, found: 833.2332 (M+H).

Preparation 10d: Ethyl (2R)-2-[(5Sa)-[3-chloro-2-methyl-4-[2-(4-ethylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(2-methylsulfanylpyrimidin-4-yl)methoxy]phenyl]propanoate

1.80 g ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-ethylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl) propanoate (Preparation 8p) (2.5 mmol), 1.17 g (2-methylsulfanylpyrimidin-4-yl)methanol (Preparation 9aa) (7.5 mmol) and 1.97 g PPh3 (7.5 mmol) were dissolved in 50 mL dry toluene, then 1.74 g ditertbutyl azodicarboxylate (7.5 mmol) was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The toluene was evaporated under reduced pressure and the residue was purified via flash chromatography using DCM and MeOH as eluents.

HRMS calculated for C44H46ClFN6O5S2: 856.2644, found: 857.2743 (M+H).

Preparation 10e: Ethyl (2R)-2-[(5R,)-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(2-methylsulfanylpyrimidin-4-yl)methoxy]phenyl]propanoate

1.77 g ethyl (2R)-2-[(5Ra)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (Preparation 8q) (2.5 mmol), 1.17 g (2-methylsulfanylpyrimidin-4-yl)methanol (Preparation 9aa) (7.5 mmol) and 1.97 g PPh3 (7.5 mmol) were dissolved in 50 mL dry toluene, then 1.74 g ditertbutyl azodicarboxylate (7.5 mmol) was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The toluene was evaporated under reduced pressure and the residue was purified via flash chromatography using DCM and MeOH as eluents.

MS: (M+H)=843.2

Preparation 10f: Ethyl (2S)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(2-methylsulfanylpyrimidin-4-yl)methoxy]phenyl]propanoate

1.77 g ethyl (2S)-2-[(5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (Preparation 8r) (2.5 mmol), 1.17 g (2-methylsulfanylpyrimidin-4-yl)methanol (Preparation 9aa) (7.5 mmol) and 1.97 g PPh3 (7.5 mmol) were dissolved in 50 mL dry toluene, then 1.74 g ditertbutyl azodicarboxylate (7.5 mmol) was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The toluene was evaporated under reduced pressure and the residue was purified via flash chromatography using DCM and MeOH as eluents.

MS: (M+H)=843.2

Preparation 11a: Ethyl (2R)-2-[5-(3-chloro-2-ethyl-4-hydroxy-phenyl)-6-(2-furyl) thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (mixture of diastereoisomers)

403 mg ethyl (2R)-2-[5-bromo-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (Preparation 4e) (0.80 mmol), 371 mg [2-chloro-3-ethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-triisopropyl-silane (Preparation 5e) (0.85 mmol), 57 mg Ataphos (0.08 mmol) and 652 mg Cs2CO3 (2.00 mmol) were dissolved in 8 mL dioxane and 2 mL water. The mixture was heated to 110° C. for 15 minutes via microwave irradiation. Then water was added and the pH was set to 6 with 2 M HCl. Then it was extracted with DCM, dried over Na2SO4, filtered and concentrated under reduced pressure and purified via reversed phase chromatography, using MeCN as eluent to obtain ethyl (2R)-2-[5-(3-chloro-2-ethyl-4-triisopropylsilyloxy-phenyl)-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (MS (M+H): 735.2). Then it was dissolved in 2 mL toluene, 0.45 mL TBAF (0.45 mmol in 1 M THF) was added and the mixture was stirred for 5 minutes. Then it was diluted with DCM, washed with water and brine, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography, using heptane and EtOAc as eluents to obtain Preparation 11a as a mixture of diastereoisomers.

MS (M+H): 579.2 for both diastereomers.

Preparation 11b: Ethyl (2R)-2-[5-(3-fluoro-4-hydroxy-2-methyl-phenyl)-6-(2-furyl) thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (mixture of diastereoisomers)

503 mg ethyl (2R)-2-[5-bromo-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (Preparation 4e) (1.00 mmol), 378 mg 2-fluoro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5g) (1.50 mmol), 21 mg Ataphos (0.03 mmol) and 652 mg Cs2CO3 (2.00 mmol) were dissolved in 8 mL dioxane and 2 mL water. The mixture was heated to 110° C. for 10 minutes via microwave irradiation. Then water was added and the pH was set to 6 with 2 M HCl. Then it was extracted with DCM, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography, using heptane and EtOAc as eluents to obtain Preparation 11b as a mixture of diastereoisomers.

MS (M+H): 549.0, (M−H): 547.0 for both diastereomers.

Preparation 12: 4-Chloro-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]thieno[2,3-d]pyrimidine

25.00 g 4-chloro-5-iodo-thieno[2,3-d]pyrimidine (Preparation 1c) (84.31 mmol), 39.94 g 1-[2-[2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]ethyl]-4-methyl-piperazine (Preparation 5b) (101.2 mmol) and 53.69 g K3PO4 (252.9 mmol) were dissolved in 300 mL DME and 200 mL water. 946 mg palladium acetate (4.221 mmol) and 3.021 g nBuPAd2 (8.433 mmol) were added, and then the mixture was stirred at 60° C. under argon atmosphere until no further conversion was observed. Then the DME was evaporated and the precipitated solid was filtered off and washed with water. To the filtered solid 100 mL MeCN was added and it was sonicated, and then it was filtered to give a pale yellow solid as Preparation 12.

1H NMR (400 MHz, DMSO-d6): 8.98 (s, 1H), 7.97 (s, 1H), 7.22 (d, 1H), 7.09 (s, 1H), 4.25-4.16 (m, 2H), 2.76 (t, 2H), 2.54 (br s, 4H), 2.32 (br s, 4H), 2.14 (s, 3H), 2.06 (s, 3H).

Preparation 13: 4-Chloro-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-iodo-thieno[2,3-d]pyrimidine

21.95 g 4-chloro-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]thieno-[2,3-d]pyrimidine (Preparation 12) (50.20 mmol) was dissolved in 500 mL dry THF under N2 and then it was cooled to −78° C. 50.20 mL lithium diisopropylamide (100.4 mmol, 2 M in THF, EtPh, hexanes) was added and the mixture was stirred at −78° C. for 1 hour. Then 25.48 g iodine (100.4 mmol) was added and the mixture was allowed to warm up to room temperature. The volatiles were evaporated; the residue was diluted with DCM, washed with 10% sodium thiosulphate solution. The aqueous layer was extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated. 50 mL MeCN was added and it was sonicated for 10 minutes, filtered, washed with MeCN to give a pale yellow solid as Preparation 13.

1H NMR (500 MHz, DMSO-d6): 8.93 (s, 1H), 7.15 (d, 1H), 7.13 (d, 1H), 4.22 (t, 2H), 2.77 (t, 2H), 2.56 (br s, 4H), 2.34 (br s, 4H), 2.16 (s, 3H), 2.00 (s, 3H).

Preparation 14: 4-Chloro-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(2-furyl)thieno[2,3-d]pyrimidine

3.00 g 4-chloro-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-iodo-thieno[2,3-d]pyrimidine (Preparation 13) (5.32 mmol), 2.06 g 2-(2-furyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (9.05 mmol), 377 mg AtaPhos (0.53 mmol) and 5.205 g cesium carbonate (15.97 mmol) were placed in an 250 mL flask. 80 mL dioxane and 20 mL water were added, and then stirred at 70° C. under argon atmosphere until no further conversion was observed. Brine was added to the reaction mixture and it was extracted with EtOAc. The combined organic phases were dried over MgSO4, filtered and evaporated under reduced pressure, and then purified by flash chromatography using DCM/MeOH as eluents to give Preparation 14.

1H NMR (500 MHz, DMSO-d6): 8.93 (s, 1H), 7.86 (d, 1H), 7.24 (d, 1H), 7.19 (d, 1H), 6.55 (d, 1H), 5.65 (d, 1H), 4.23 (t, 2H), 2.78 (t, 2H), 2.15 (s, 3H), 2.04 (s, 3H).

Preparation 15a: Methyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-5-nitro-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate

483 mg methyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d[pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 6i) (1.00 mmol) was dissolved in 10 mL MeCN, then 139 mg nitronium tetrafluoroborate (1.05 mmol) suspended in 10 mL MeCN was added and the mixture was stirred at 0° C. for 50 minutes. The volatiles were evaporated under reduced pressure and the crude product was purified via flash chromatography, using heptane and EtOAc as eluents to obtain Preparation 15a.

1H NMR (400 MHz, DMSO-d6): 11.19 (br s, 1H), 8.59 (s, 1H), 7.87 (s, 1H), 7.14 (m, 3H), 6.72 (m, 2H), 5.59 (dd, 1H), 3.53 (s, 3H), 2.97 (dd, 1H), 2.74-2.61 (m, 3H), 2.07 (s, 3H), 1.18 (t, 3H).

HRMS calculated for C25H22ClN3O6S: 527.0918, found: 528.0986 (M+H).

Preparation 15b: Methyl (2R)-2-[(5Sa)-5-(5-amino-3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate

1.339 g methyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-5-nitro-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 15a) (2.536 mmol) was dissolved in 40 mL MeOH. 270 mg Selcat Q6 was added and the mixture was stirred at 40° C. under 4 atm. H2 pressure for 90 minutes. Then it was filtered through celite and the volatiles were evaporated under reduced pressure. The crude product was purified via flash chromatography, using heptane and EtOAc as eluents to obtain Preparation 15b.

1H NMR (400 MHz, DMSO-d6): 8.78 (br s, 1H), 8.52 (s, 1H), 7.16 (m, 3H), 6.67 (m, 2H), 6.58 (s, 1H), 5.45 (dd, 1H), 4.88 (br s, 2H), 3.51 (s, 3H), 2.92 (dd, 1H), 2.78 (dd, 1H), 2.72-2.59 (m, 2H), 1.86 (s, 3H), 1.17 (t, 3H).

HRMS calculated for C25H24ClN3O4S: 497.1176, found: 498.1259 (M+H).

Preparation 15c: Methyl (2R)-2-[(5Sa)-5-[7-chloro-2-(chloromethyl)-6-methyl-1,3-benzoxazol-5-yl]-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate

100 mg methyl (2R)-2-[(5Sa)-5-(5-amino-3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 15b) (0.20 mmol) was dissolved in 0.5 mL dry toluene under N2. 57 μL triethyl-ortochloroacetate (0.30 mmol) was added and the mixture was stirred at 100° C. for 1 hour. The volatiles were evaporated under reduced pressure. The crude product was purified via flash chromatography, using heptane and EtOAc as eluents to obtain Preparation 15c.

MS (M+H): 556.0.

Preparation 15d: Methyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-5-iodo-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate

483 mg methyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 6i) (1.0 mmol) was dissolved in 5 mL EtOH, then 305 mg iodine (1.2 mmol) and 405 mg Ag2SO4 (1.3 mmol) were added and the mixture was stirred at room temperature for 90 minutes. Then it was filtered, the filtrate was concentrated under reduced pressure and the crude product was purified via flash chromatography, using heptane and EtOAc as eluents to obtain Preparation 15d.

1H NMR (400 MHz, DMSO-d6): 10.10 (br s, 1H), 8.55 (s, 1H), 7.64 (s, 1H), 7.15 (m, 3H), 6.63 (m, 2H), 5.49 (dd, 1H), 3.58 (s, 1H), 3.00 (dd, 1H), 2.69 (dd, 1H), 2.65 (m, 2H), 1.99 (s, 3H), 1.17 (t, 3H).

HRMS calculated for C25H22ClIN2O4S: 608.0034, found: 609.0130 (M+H).

Preparation 15e: Methyl (2R)-2-[(5Sa)-5-(3,5-dichloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate

483 mg methyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 6i) (1.0 mmol) was dissolved in 5 mL THF, then 147 mg NCS (1.1 mmol) was added and the mixture was stirred at 50° C. for 3 hours. The volatiles were evaporated under reduced pressure and the crude product was purified via flash chromatography, using heptane and EtOAc as eluents to obtain Preparation 15e.

1H NMR (400 MHz, DMSO-d6): 10.21 (s, 1H), 8.56 (s, 1H), 7.33 (s, 1H), 7.16 (m, 3H), 6.66 (m, 2H), 5.52 (dd, 1H), 3.55 (s, 3H), 2.98 (dd, 1H), 2.70-2.60 (m, 3H), 1.99 (s, 3H), 1.17 (t, 3H).

HRMS calculated for C25H22Cl2N2O4S: 516.0677, found: 517.0772 (M+H).

Preparation 15f: Methyl (2R)-2-[(5Sa)-5-(5-bromo-3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate

169 mg methyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 6i) (0.35 mmol) was dissolved in 2 mL THF, then 64 mg NBS (0.36 mmol) was added and the mixture was stirred at 50° C. for 10 minutes. The volatiles were evaporated under reduced pressure and the crude product was purified via flash chromatography, using heptane and EtOAc as eluents to obtain Preparation 15f.

1H NMR (400 MHz, DMSO-d6): 10.10 (br s, 1H), 8.54 (s, 1H), 7.44 (s, 1H), 7.15 (m, 3H), 6.65 (m, 2H), 5.50 (dd, 1H), 3.55 (s, 3H), 2.98 (dd, 1H), 2.70-2.59 (m, 3H), 1.97 (s, 1H), 1.16 (t, 3H).

MS (M+H): 561.0, (M−H): 559.0.

Unless otherwise specified, compounds of Preparation 16a to 16g were obtained using General Procedure 16A described below.

General Procedure 16A

2.5 eq. 4-chloro-6-ethyl-5-iodo-thieno[2,3-d]pyrimidine (Preparation 1d), 1.0 eq. of the appropriate alcohol and 1.5 eq. cesium carbonate were dissolved in dry DMSO (0.25 M for Preparation 1d). The mixture was stirred at 100° C. under nitrogen until no further conversion was observed. The reaction mixture was cooled to room temperature, it was diluted with water, the pH was set to 7 with 2 M HCl, and then it was extracted with ethyl acetate. The combined organic phases were dried over Na2SO4, filtered, concentrated under reduced pressure and purified via flash chromatography using heptane and ethyl acetate as eluents.

Preparation 16a: Ethyl (2R)-3-(1,3-benzodioxol-4-yl)-2-(6-ethyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-propanoate

Using General Procedure 16A and ethyl (2R)-3-(1,3-benzodioxol-4-yl)-2-hydroxy-propanoate (Preparation 3bg) as the appropriate alcohol we obtained Preparation 16a.

1H NMR (400 MHz, CDCl3): 8.49 (s, 1H), 6.90 (dd, 1H), 6.75 (t, 1H), 6.73 (dt, 1H), 5.92 (dd, 2H), 5.82 (t, 1H), 4.20 (dq, 2H), 3.40 (d, 2H), 2.93 (q, 2H), 1.33 (t, 3H), 1.21 (t, 3H).

Preparation 16b: Ethyl (2R)-3-(2,3-dihydrobenzofuran-7-yl)-2-(6-ethyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-propanoate

Using General Procedure 16A and ethyl (2R)-3-(2,3-dihydrobenzofuran-7-yl)-2-hydroxy-propanoate (Preparation 3bd) as the appropriate alcohol we obtained Preparation 16b.

1H NMR (400 MHz, CDCl3): 8.48 (s, 1H), 7.17 (d, 1H), 7.08 (d, 1H), 6.76 (t, 1H), 5.81 (dd, 1H), 4.54 (dt, 2H), 4.19 (dq, 2H), 3.44-3.32 (m, 2H), 3.19 (t, 2H), 2.92 (q, 2H), 1.32 (t, 3H), 1.20 (t, 3H).

Preparation 16c: Ethyl (2S)-3-(2,3-dihydrobenzofuran-7-yl)-2-(6-ethyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-propanoate

Using General Procedure 16A and ethyl (2S)-3-(2,3-dihydrobenzofuran-7-yl)-2-hydroxy-propanoate (Preparation 3be) as the appropriate alcohol we obtained Preparation 16c.

1H NMR (400 MHz, CDCl3): 8.48 (s, 1H), 7.17 (d, 1H), 7.08 (d, 1H), 6.76 (t, 1H), 5.81 (dd, 1H), 4.54 (dt, 2H), 4.19 (dq, 2H), 3.44-3.32 (m, 2H), 3.19 (t, 2H), 2.92 (q, 2H), 1.32 (t, 3H), 1.20 (t, 3H).

Preparation 16d: Ethyl 3-(benzofuran-7-yl)-2-(6-ethyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-propanoate

Using General Procedure 16A and ethyl 3-(benzofuran-7-yl)-2-hydroxy-propanoate (Preparation 3bb) as the appropriate alcohol we obtained Preparation 16d.

1H NMR (400 MHz, CDCl3): 8.47 (s, 1H), 7.61 (d, 1H), 7.49 (d, 1H), 7.36 (d, 1H), 7.16 (t, 1H), 6.76 (d, 1H), 5.94 (dd, 1H), 4.18 (dq, 2H), 3.79-3.66 (m, 2H), 2.90 (q, 2H), 1.31 (t, 3H), 1.16 (t, 3H).

Preparation 16e: Ethyl (2S)-2-(6-ethyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-3-(2-fluorophenyl)propanoate

Using General Procedure 16A and ethyl (2S)-3-(2-fluorophenyl)-2-hydroxy-propanoate (Preparation 3az) as the appropriate alcohol we obtained Preparation 16e.

1H NMR (400 MHz, CDCl3): 8.48 (s, 1H), 7.45 (dt, 1H), 7.23 (m, 1H), 7.06 (t, 1H), 7.04 (t, 1H), 5.78 (dd, 1H), 4.19 (m, 2H), 3.53-3.41 (m, 2H), 2.92 (q, 2H), 1.33 (t, 3H), 1.20 (t, 3H).

Preparation 16f: Ethyl (2R)-2-(6-ethyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-3-(2-fluorophenyl)propanoate

Using General Procedure 16A and ethyl (2R)-3-(2-fluorophenyl)-2-hydroxy-propanoate (Preparation 3ba) as the appropriate alcohol we obtained Preparation 16f.

1H NMR (400 MHz, CDCl3): 8.48 (s, 1H), 7.45 (dt, 1H), 7.23 (m, 1H), 7.06 (t, 1H), 7.04 (t, 1H), 5.78 (dd, 1H), 4.19 (m, 2H), 3.53-3.41 (m, 2H), 2.92 (q, 2H), 1.33 (t, 3H), 1.20 (t, 3H).

Preparation 16g: Ethyl (2S)-3-(1,3-benzodioxol-4-yl)-2-(6-ethyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-propanoate

Using General Procedure 16A and ethyl (2S)-3-(1,3-benzodioxol-4-yl)-2-hydroxy-propanoate (Preparation 3bh) as the appropriate alcohol we obtained Preparation 16g.

1H NMR (400 MHz, CDCl3): 8.49 (s, 1H), 6.90 (dd, 1H), 6.75 (t, 1H), 6.73 (dt, 1H), 5.92 (dd, 2H), 5.82 (t, 1H), 4.20 (dq, 2H), 3.40 (d, 2H), 2.93 (q, 2H), 1.33 (t, 3H), 1.21 (t, 3H).

Preparation 17a: Ethyl (2R)-3-(1,3-benzodioxol-4-yl)-2-[(5Ra)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate and Preparation 17b: Ethyl (2R)-3-(1,3-benzodioxol-4-yl)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate

0.482 g ethyl (2R)-3-(1,3-benzodioxol-4-yl)-2-(6-ethyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-propanoate (Preparation 16a) (0.92 mmol), 0.737 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (2.74 mmol), 0.041 g Pd(OAc)2 (0.18 mmol) 0.130 g nBuPAd2 (0.36 mmol), 2.7 mL Bu4NOH solution (2.7 mmol, 1.0 M in water) and 6.6 mL DME were heated under nitrogen at 100° C. for 10 min in microwave reactor with stirring. The pH of the mixture was set to 6 with 2 M HCl, and then it was extracted with MTBE. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereomers were separated via flash chromatography using heptane and EtOAc as eluents, collecting the diastereomer eluting earlier as Preparation 17a, and the diastereomer eluting later as Preparation 17b.

Preparation 17a: 1H NMR (500 MHz, DMSO-d6): 10.28 (br s, 1H), 8.53 (s, 1H), 6.91 (d, 1H), 6.88 (d, 1H), 6.73 (d, 1H), 6.58 (t, 1H), 5.95 (s, 2H), 5.82 (d, 1H), 5.30 (dd, 1H), 4.09 (m, 2H), 2.97 (dd, 1H), 2.65 (m, 2H), 2.44 (dd, 1H), 2.15 (s, 3H), 1.15 (t, 3H), 1.09 (t, 3H).

Preparation 17b: 1H NMR (500 MHz, DMSO-d6): 10.23 (br s, 1H), 8.54 (s, 1H), 7.03 (d, 1H), 6.96 (d, 1H), 6.75 (d, 1H), 6.62 (t, 1H), 5.96 (s, 1H), 5.94 (s, 1H), 5.92 (d, 1H), 5.43 (dd, 1H), 4.02 (m, 2H), 2.86 (dd, 1H), 2.62 (m, 2H), 2.58 (dd, 1H), 1.95 (s, 3H), 1.15 (t, 3H), 1.04 (t, 3H).

Preparation 17c: Ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2,3-dihydrobenzofuran-7-yl)propanoate

0.525 g ethyl (2R)-3-(2,3-dihydrobenzofuran-7-yl)-2-(6-ethyl-5-iodo-thieno[2,3-d[pyrimidin-4-yl)oxy-propanoate (Preparation 16b) (1.0 mmol), 0.670 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (2.5 mmol), 0.063 g AtaPhos (0.09 mmol), 2.5 mL Bu4NOH solution (2.5 mmol, 1.0 M in water) and 4.5 mL 2-MeTHF were heated under nitrogen at 100° C. for 10 mins in a microwave reactor with stirring. The pH of the mixture was set to 6 with 2 M HCl, and then it was extracted with MTBE. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereomers were separated via flash chromatography using heptane and EtOAc as eluents, collecting the diastereomer eluting later as Preparation 17c.

1H NMR (500 MHz, DMSO-d6): 10.23 (br s, 1H), 8.52 (s, 1H), 7.04 (d, 1H), 7.02 (d, 1H), 6.96 (d, 1H), 6.62 (t, 1H), 6.12 (d, 1H), 5.38 (dd, 1H), 4.49 (m, 2H), 4.02 (m, 2H), 3.11 (t, 2H), 2.87 (dd, 1H), 2.61 (m, 2H), 2.45 (dd, 1H), 1.95 (s, 3H), 1.15 (t, 3H), 1.05 (t, 3H).

Preparation 17d: Ethyl (2S)-2-[(5Ra)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2,3-dihydrobenzofuran-7-yl)propanoate

0.525 g ethyl (2S)-3-(2,3-dihydrobenzofuran-7-yl)-2-(6-ethyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-propanoate (Preparation 16c) (1.0 mmol), 0.670 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (2.5 mmol), 0.063 g AtaPhos (0.09 mmol), 2.5 mL Bu4NOH solution (2.5 mmol, 1.0 M in water) and 4.5 mL 2-MeTHF were heated under nitrogen at 100° C. for 10 mins in a microwave reactor with stirring. The pH of the mixture was set to 6 with 2 M HCl, and then it was extracted with MTBE. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereomers were separated via flash chromatography using heptane and EtOAc as eluents, collecting the diastereomer eluting later as Preparation 17d.

1H NMR (500 MHz, DMSO-d6): 10.23 (br s, 1H), 8.52 (s, 1H), 7.04 (d, 1H), 7.02 (d, 1H), 6.96 (d, 1H), 6.62 (t, 1H), 6.12 (d, 1H), 5.38 (dd, 1H), 4.49 (m, 2H), 4.02 (m, 2H), 3.11 (t, 2H), 2.87 (dd, 1H), 2.61 (m, 2H), 2.45 (dd, 1H), 1.95 (s, 3H), 1.15 (t, 3H), 1.05 (t, 3H).

Preparation 17e: Ethyl (2R)-3-(benzofuran-7-yl)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate and Preparation 17f: Ethyl (2S)-3-(benzofuran-7-yl)-2-[(5Ra)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate

0.647 g Ethyl 3-(benzofuran-7-yl)-2-(6-ethyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-propanoate (Preparation 16d) (1.24 mmol), 0.766 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (2.85 mmol), 0.087 g AtaPhos (0.12 mmol), 2.5 mL Bu4NOH solution (2.5 mmol, 1.0 M in water) and 5 mL 2-MeTHF were heated under nitrogen at 100° C. for 10 mins in a microwave reactor with stirring. The pH of the mixture was set to 6 with 2 M HCl, it was filtered through a pad of celite, and the pad was washed both with water and MTBE. The phases were then separated, the aqueous layer was extracted with MTBE. The combined organic phases were dried over Na2SO4, filtered and concentrated. The four stereoisomer containing mixture was first separated via flash chromatography using heptane and EtOAc as eluents, and collecting the racemic mixture eluting later. Then further separation of the mixture was accomplished by chiral chromatography, Column: AD, Eluents: heptane/EtOH. The enantiomer eluting earlier was collected as Preparation 17e with ee>99.8% and the enantiomer eluting later was collected as Preparation 17f with ee: 99.6%.

1H NMR (500 MHz, DMSO-d6): 10.25 (br s, 1H), 8.52 (s, 1H), 7.97 (d, 1H), 7.49 (m, 1H), 7.06 (d, 1H), 7.04 (t, 1H), 7.01 (d, 1H), 6.91 (d, 1H), 6.36 (m, 1H), 5.57 (dd, 1H), 3.98 (m, 1H), 3.93 (m, 1H), 3.22 (dd, 1H), 2.90 (dd, 1H), 2.65 (m, 1H), 2.60 (m, 1H), 1.96 (s, 3H), 1.15 (t, 3H), 0.94 (t, 3H).

Preparation 17g: Ethyl (2S)-2-[(5Ra)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-fluorophenyl)propanoate

0.425 g Ethyl (2S)-2-(6-ethyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-3-(2-fluorophenyl)propanoate (Preparation 16e) (0.85 mmol), 0.570 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (2.12 mmol), 0.053 g AtaPhos (0.075 mmol), 2.13 mL Bu4NOH solution (2.13 mmol, 1.0 M in water) and 4 mL 2-MeTHF were heated under nitrogen at 100° C. for 10 mins in a microwave reactor with stirring. The pH of the mixture was set to 6 with 2 M HCl, it was filtered through a pad of celite, the pad was washed both with water and MTBE. The phases were then separated, the aqueous layer was extracted with MTBE. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereomers were separated via flash chromatography using heptane and EtOAc as eluents, collecting the diastereomer eluting later as Preparation 17g.

1H NMR (500 MHz, DMSO-d6): 10.23 (s, 1H), 8.54 (s, 1H), 7.24 (m, 1H), 7.09 (ddd, 1H), 7.05 (d, 1H), 6.98 (d, 1H), 6.97 (td, 1H), 6.45 (td, 1H), 5.42 (dd, 1H), 4.00 (m, 2H), 2.93 (dd, 1H), 2.72 (dd, 1H), 2.63 (m, 2H), 1.97 (s, 3H), 1.15 (t, 3H), 1.02 (t, 3H).

Preparation 17h: Ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-fluorophenyl)propanoate

0.425 g Ethyl (2R)-2-(6-ethyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-3-(2-fluorophenyl)propanoate (Preparation 16f) (0.85 mmol), 0.570 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (2.12 mmol), 0.053 g AtaPhos (0.075 mmol), 2.13 mL Bu4NOH solution (2.13 mmol, 1.0 M in water) and 4 mL 2-MeTHF were heated under nitrogen at 100° C. for 10 mins in a microwave reactor with stirring. The pH of the mixture was set to 6 with 2 M HCl, it was filtered through a pad of celite, the pad was washed both with water and MTBE. The phases were then separated, the aqueous layer was extracted with MTBE. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereomers were separated via flash chromatography using heptane and EtOAc as eluents, collecting the diastereomer eluting later as Preparation 17h.

1H NMR (500 MHz, DMSO-d6): 10.23 (s, 1H), 8.54 (s, 1H), 7.24 (m, 1H), 7.09 (ddd, 1H), 7.05 (d, 1H), 6.98 (d, 1H), 6.97 (td, 1H), 6.45 (td, 1H), 5.42 (dd, 1H), 4.00 (m, 2H), 2.93 (dd, 1H), 2.72 (dd, 1H), 2.63 (m, 2H), 1.97 (s, 3H), 1.15 (t, 3H), 1.02 (t, 3H).

Preparation 17i: Ethyl (2S)-3-(1,3-benzodioxol-4-yl)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate and Preparation 17l: Ethyl (2S)-3-(1,3-benzodioxol-4-yl)-2-[(5Ra)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate

0.482 g ethyl (2S)-3-(1,3-benzodioxol-4-yl)-2-(6-ethyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-propanoate (Preparation 16g) (0.92 mmol), 0.737 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (2.74 mmol), 0.041 g Pd(OAc)2 (0.18 mmol), 0.130 g nBuPAd2 (0.36 mmol), 2.7 mL Bu4NOH solution (2.7 mmol, 1.0 M in water) and 6.6 mL DME were heated under nitrogen at 100° C. for 10 mins in a microwave reactor with stirring. The pH of the mixture was set to 6 with 2 M HCl, and then it was extracted with MTBE. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereomers were separated via flash chromatography using heptane and EtOAc as eluents, collecting the diastereomer eluting earlier as Preparation 17i, and the diastereomer eluting later as Preparation 17j.

Preparation 17i: 1H NMR (500 MHz, DMSO-d6): 10.28 (br s, 1H), 8.53 (s, 1H), 6.91 (d, 1H), 6.88 (d, 1H), 6.73 (d, 1H), 6.58 (t, 1H), 5.95 (s, 2H), 5.82 (d, 1H), 5.30 (dd, 1H), 4.09 (m, 2H), 2.97 (dd, 1H), 2.65 (m, 2H), 2.44 (dd, 1H), 2.15 (s, 3H), 1.15 (t, 3H), 1.09 (t, 3H).

Preparation 17j: 1H NMR (500 MHz, DMSO-d6): 10.23 (br s, 1H), 8.54 (s, 1H), 7.03 (d, 1H), 6.96 (d, 1H), 6.75 (d, 1H), 6.62 (t, 1H), 5.96 (s, 1H), 5.94 (s, 1H), 5.92 (d, 1H), 5.43 (dd, 1H), 4.02 (m, 2H), 2.86 (dd, 1H), 2.62 (m, 2H), 2.58 (dd, 1H), 1.95 (s, 3H), 1.15 (t, 3H), 1.04 (t, 3H).

Preparation 18a: Ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-5-methoxy-2-methyl-phenyl)-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl) propanoate

444 mg ethyl (2R)-2-(5-iodo-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl)oxy-3-(2-methoxyphenyl)propanoate (Preparation 4k) (0.85 mmol), 297 mg 2-chloro-6-methoxy-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5k) (1.00 mmol), 62 mg PdCl2×dppf (0.085 mmol) and 326 mg Cs2CO3 (1.00 mmol) were dissolved in 8 mL dioxane and 2 mL water. The mixture was heated to 110° C. for 10 minutes via microwave irradiation. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography, using heptane and EtOAc as eluents. The diastereoisomer eluting earlier was collected as Preparation 18a.

1H NMR (400 MHz, DMSO-d6): 9.60 (br s, 1H), 8.62 (s, 1H), 7.15 (t, 1H), 6.89 (s, 1H), 6.87 (d, 1H), 6.66 (t, 1H), 6.05 (dd, 1H), 5.32 (dd, 1H), 4.11 (m, 2H), 3.86 (s, 3H), 3.75 (s, 3H), 3.10 (dd, 1H), 2.37 (dd, 1H), 2.06 (s, 3H), 2.05 (s, 3H), 1.11 (t, 3H).

HRMS calculated for C29H27ClN2O6S: 566.1278, found: 567.1360 (M+H).

Preparation 18b: Ethyl (2R)-2-[5-(3-chloro-4-hydroxy-2,5-dimethyl-phenyl)-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (mixture of diastereoisomers)

522 mg ethyl (2R)-2-(5-iodo-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl)oxy-3-(2-methoxyphenyl)propanoate (Preparation 4k) (1.00 mmol), 351 mg 2-chloro-3,6-dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 51) (1.24 mmol), 73 mg PdCl2×dppf (0.10 mmol) and 489 mg Cs2CO3 (1.50 mmol) were dissolved in 8 mL dioxane and 2 mL water. The mixture was heated to 110° C. for 12 minutes via microwave irradiation. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography, using heptane and EtOAc as eluents to obtain Preparation 18b as a mixture of diastereoisomers.

1H NMR (400 MHz, DMSO-d6): 9.25 (br s, 1H), 8.61 (s, 1H), 7.14 (t, 1H), 7.06/6.94 (s, 1H), 6.87 (d, 1H), 6.65/6.61 (t, 1H), 6.11/6.06 (dd, 1H), 5.33/5.25 (dd, 1H), 4.14-4.02 (m, 2H), 3.75 (s, 3H), 3.09/3.05 (dd, 1H), 2.44-2.34 (m, 1H), 2.27/2.26 (s, 3H), 2.18/2.09 (s, 3H), 2.04/2.02 (s, 3H), 1.09 (t, 3H).

HRMS calculated for C29H27ClN2O5S: 550.1329, found: 551.1412 (M+H).

Preparation 18c: Ethyl (2R)-2-[(5Sa)-5-(3-chloro-5-fluoro-4-hydroxy-2-methyl-phenyl)-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl) propanoate

522 mg ethyl (2R)-2-(5-iodo-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl)oxy-3-(2-methoxyphenyl)propanoate (Preparation 4k) (1.00 mmol), 403 mg 2-chloro-6-fluoro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5m) (1.5 mmol), 71 mg AtaPhos (0.1 mmol) and 652 mg Cs2CO3 (2.00 mmol) were dissolved in 8 mL dioxane and 2 mL water. The mixture was heated to 100° C. for 15 minutes via microwave irradiation. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM, dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography, using heptane and EtOAc as eluents. The diastereoisomer eluting later was collected as Preparation 18c.

1H NMR (400 MHz, DMSO-d6): 10.56 (br s, 1H), 8.64 (s, 1H), 7.17 (dt, 1H), 7.13 (d, 1H), 6.90 (d, 1H), 6.69 (t, 1H), 6.23 (dd, 1H), 5.41 (dd, 1H), 4.11-4.01 (m, 2H), 3.75 (s, 3H), 3.03 (dd, 1H), 2.52 (dd, 1H), 2.06 (m, 6H), 1.08 (t, 3H).

HRMS calculated for C28H24ClFN2O5S: 554.1078, found: 555.1166 (M+H).

Preparation 19a: Ethyl 3-(benzofuran-4-yl)-2-(5-iodo-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl)oxy-propanoate

2.676 g 4-chloro-5-iodo-6-prop-1-ynyl-thieno[2,3-d]pyrimidine (Preparation 2f) (8 mmol), 0.937 g ethyl 3-(benzofuran-4-yl)-2-hydroxy-propanoate (Preparation 3bc) (4 mmol) and 1.955 g Cs2CO3 (6 mmol) were placed in a flask. 20 mL dry DMSO was added and the mixture was stirred at room temperature until no further conversion was observed. It was diluted with water, the pH was set to 8 with 2 M HCl, and then it was extracted with DCM. The combined organic phases were dried over Na2SO4 filtered and concentrated under reduced pressure and purified via flash chromatography using heptane and ethyl acetate as eluents to give Preparation 19a.

1H NMR (400 MHz, CDCl3): 8.50 (s, 1H), 7.64 (d, 1H), 7.40 (d, 1H), 7.33 (d, 1H), 7.22 (t, 1H), 6.94 (d, 1H), 5.82 (dd, 1H), 4.17 (m, 2H), 3.71-3.59 (m, 2H), 2.18 (s, 3H).

Preparation 20a: Ethyl (2R)-3-(benzofuran-4-yl)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate and Preparation 20b: Ethyl (2S)-3-(benzofuran-4-yl)-2-[(5Ra)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate

0.850 g ethyl 3-(benzofuran-4-yl)-2-(5-iodo-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl)oxy-propanoate (Preparation 19a) (1.6 mmol), 0.859 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (3.2 mmol), 0.110 g AtaPhos (0.16 mmol) and 1.043 g Cs2CO3 (3.2 mmol) were placed in a microwave reactor tube. 16 mL Dioxane and 4.8 mL H2O were added and the mixture was heated under nitrogen at 80° C. for 10 mins in microwave reactor. The mixture was filtered through a pad of celite, the pad was washed both with water and MTBE. The pH of the filtrate was adjusted to 7 with 2 M HCl, and then it was shaken. The aqueous phase was extracted with MTBE, the combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The mixture containing four stereoisomers was first separated via flash chromatography using heptane and EtOAc as eluents and the racemic mixture eluting later was collected. Then this mixture was separated by chiral chromatography, Column: AD, Eluents: heptane/ethanol. The product eluting earlier was collected as Preparation 20a with ee: 96.8%, the product eluting later was collected as Preparation 20b with ee>99.8%.

1H NMR (500 MHz, DMSO-d6): 10.31 (br s, 1H), 8.62 (s, 1H), 7.95 (dd, 1H), 7.41 (dd, 1H), 7.13 (dd, 1H), 7.05 (dd, 1H), 7.00 (dd, 1H), 6.82 (dd, 1H), 6.28 (dd, 1H), 5.49 (dd, 1H), 3.98 (m, 1H), 3.91 (m, 1H), 3.16 (dd, 1H), 2.98 (dd, 1H), 2.09 (s, 3H), 2.03 (s, 3H), 0.97 (t, 3H).

Preparation 21: Methyl (2R)-2-(6-bromo-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-3-phenyl-propanoate

15.39 g 6-bromo-4-chloro-5-iodo-thieno[2,3-d]pyrimidine (Preparation 1e) (41 mmol), 11.08 g methyl (2R)-2-hydroxy-3-phenyl-propanoate (61.5 mmol) and 26.71 g cesium carbonate (82 mmol) were placed in a 100 mL flask. 40 mL dry DMSO was added and the mixture was stirred at 70° C. under argon atmosphere until no further conversion was observed. The reaction mixture was poured onto 200 mL water, and then pH was set to 5. The precipitated product was collected by filtration.

MS (M+H)=519.0.

Preparation 22: Methyl (2R)-2-[6-bromo-(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate

1.557 g methyl (2R)-2-(6-bromo-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-3-phenyl-propanoate (Preparation 21) (3.0 mmol), 1.289 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (4.8 mmol), 219 mg

Pd(ddpf)Cl2 (0.3 mmol) and 2.931 g cesium carbonate (9.0 mmol) were placed in a 30 mL microwave tube. After addition of 12 mL dioxane and 6 mL water reaction was heated at 120° C. under nitrogen with stirring for 25 min in a microwave reactor. Water was added to the reaction mixture and the pH was set to 5 with 2 M HCl. The resulting mixture was extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure. Diastereoisomers were separated via flash chromatography using heptane and ethyl acetate as eluents. The diastereoisomer eluting later was collected as Preparation 22.

MS (M+H)=532.0.

Preparation 23a: [2-Chloro-4-(4-chlorothieno[2,3-d]pyrimidin-5-yl)-3-methyl-phenoxyl-triisopropyl-silane

34.50 g 4-chloro-5-iodo-thieno[2,3-d]pyrimidine (Preparation 1c) (116.3 mmol), 59.32 g [2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-triisopropyl-silane (Preparation 5c) (139.6 mmol), 653 mg Pd(OAc)2 (2.908 mmol), 2.085 g nBuPAd2 (5.817 mmol) and 74.09 g K3PO4 (349.0 mmol) were placed in a 1 L flask. After addition of 450 mL DME and 150 mL water the reaction was stirred under nitrogen at 60° C. until no further conversion was observed. To the reaction mixture saturated aq. NH4Cl was added and then it was extracted with EtOAc. The combined organic layers were dried over MgSO4 and concentrated under reduced pressure. The obtained solid was sonicated in acetonitrile/water (3:1) and collected by filtration to give Preparation 23a.

1H NMR (400 MHz, DMSO-d6): 8.95 (s, 1H), 7.98 (s, 1H), 7.13 (d, 1H), 6.91 (d, 1H), 2.05 (s, 3H), 1.40-1.29 (m, 3H), 1.10 (dd, 18H).

Preparation 23b: 4-Chloro-5-(3-chloro-2-methyl-phenyl)thieno[2,3-d]pyrimidine Step A

The mixture of 4.26 g (3-chloro-2-methyl-phenyl)boronic acid (25.0 mmol) and 2.954 g 2,3-dimethylbutane-2,3-diol (25.0 mmol) was dissolved in 125 mL 2-Me-THF and 0.2 g dry Amberlyst 15 H+ ion-exchange resin (previously co-evaporated with toluene) was added and the mixture was stirred at room temperature until no further conversion was observed. The solution was filtered through a pad of celite, it was washed with 2-MeTHF and the filtrate was evaporated under reduced pressure to give 2-(3-chloro-2-methyl-phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane. The obtained material was used without further purification.

Step B

3.558 g 4-chloro-5-iodo-thieno[2,3-d]pyrimidine (Preparation 1c) (12.0 mmol), 3.636 g 2-(3-chloro-2-methyl-phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (Step A, 14.4 mmol), 67.4 mg Pd(OAc)2 (0.3 mmol), 0.215 g nBuPAd2 (0.6 mmol) and 7.645 g K3PO4 (36.0 mmol) were placed in a flask. After the addition of 45 mL DME and 15 mL water the mixture was stirred under nitrogen at 60° C. until no further conversion was observed. To the reaction mixture saturated aq. NH4Cl was added and it was extracted with EtOAc. The combined organic layers were dried over MgSO4 and concentrated under reduced pressure. The crude material was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 23b.

1H NMR (400 MHz, CDCl3): 8.89 (s, 1H), 7.47 (dd, 1H), 7.43 (s, 1H), 7.20 (t, 1H), 7.14 (dd, 1H), 2.14 (s, 3H).

Preparation 24a: [2-Chloro-4-(4-chloro-6-iodo-thieno[2,3-d]pyrimidin-5-yl)-3-methyl-phenoxyl-triisopropyl-silane

38.00 g [2-chloro-4-(4-chlorothieno[2,3-d]pyrimidin-5-yl)-3-methyl-phenoxy]-triisopropyl-silane (Preparation 23a) (81.27 mmol) was dissolved in 1 L dry THF then cooled to −78° C. under argon atmosphere. 48.76 mL lithium diisopropylamide (97.53 mmol, 2 M in THF, EtPh, hexanes) was added and the mixture was stirred at −78° C. for 1 hour. Then 24.75 g iodine (97.53 mmol) was added and the mixture was allowed to warm up to room temperature. Saturated aq. NH4Cl was added to the reaction mixture and it was extracted with EtOAc. The combined organic layers were washed with Na2S2O3 solution, then dried over Na2SO4 and concentrated under reduced pressure. The obtained solid was sonicated in acetonitrile/water (3:1) and collected by filtration.

1H NMR (400 MHz, DMSO-d6): 8.91 (s, 1H), 7.05 (d, 1H), 6.97 (d, 1H), 1.99 (s, 3H), 1.39-1.30 (m, 3H), 1.10 (dd, 18H).

Preparation 24b: 4-Chloro-5-(3-chloro-2-methyl-phenyl)-6-iodo-thieno[2,3-d]pyrimidine

1.48 g 4-chloro-5-(3-chloro-2-methyl-phenyl)thieno[2,3-d]pyrimidine (Preparation 23b) (5.0 mmol) was dissolved in 30 mL dry THF then cooled to −78° C. under argon atmosphere. 2.75 mL lithium diisopropylamide (5.5 mmol, 2 M in THF, EtPh, hexanes) was added and the mixture was stirred at −78° C. for 1 hour. Then 1.675 g iodine (6.5 mmol) was added and the mixture was allowed to warm up to room temperature. Saturated aq. NH4Cl was added to the reaction mixture and it was extracted with EtOAc. The combined organic layers were washed with Na2S2O3 solution, then dried over Na2SO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation 24b.

1H NMR (400 MHz, CDCl3): 8.82 (s, 1H), 7.52 (dd, 1H), 7.25 (t, 1H), 7.05 (dd, 1H), 2.09 (s, 3H).

Preparation 25: Ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate

37.85 g [2-chloro-4-(4-chloro-6-iodo-thieno[2,3-d]pyrimidin-5-yl)-3-methyl-phenoxy]-triisopropyl-silane (Preparation 24a) (63.7 mmol), 15.71 g methyl (2R)-2-hydroxy-3-(2-methoxyphenyl)propanoate (Preparation 3ad) (70 mmol) and 62.3 g Cs2CO3 (191 mmol) were placed in a 500 mL flask. 150 mL tert-butanol was added and the mixture was stirred at 65° C. until no further conversion was observed. It was diluted with icy water, the pH was set to 6 with 2 M HCl, and then it was extracted with ethyl acetate. The combined organic layers were dried over Na2SO4 and concentrated under reduced pressure. The residue was dissolved in 100 mL THF, 76.4 mL TBAF (1M in THF) was added and the mixture was stirred at room temperature until no further conversion was observed. Approximately 50 mL solvent was evaporated under reduced pressure, then it was diluted with ethyl acetate, washed with water and brine. The organic layer was dried over Na2SO4 and concentrated under reduced pressure and purified via flash chromatography using heptane and ethyl acetate as eluents. The diastereoisomer eluting later was collected as Preparation 25.

1H NMR (500 MHz, DMSO-d6): 10.33 (s, 1H), 8.55 (s, 1H), 7.18 (t, 1H), 7.00 (d, 1H), 6.98 (d, 1H), 6.90 (d, 1H), 6.75 (t, 1H), 6.29 (d, 1H), 5.36 (dd, 1H), 4.03 (m, 2H), 3.76 (s, 3H), 2.99 (dd, 1H), 2.42 (dd, 1H), 1.97 (s, 3H), 1.06 (t, 3H).

HRMS: (M+H)=625.0055.

Preparation 26a: Ethyl (2R)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl) ethoxy]phenyl]-6-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate

7.1 g 4-chloro-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-iodo-thieno[2,3-d[pyrimidine (Preparation 13) (12.6 mmol), 4.45 g ethyl (2R)-2-hydroxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 3ab-(R)) (15.12 mmol) and 12.32 g Cs2CO3 (32.81 mmol) were placed in a 250 mL flask. 100 mL tert-butanol and 50 mL DMSO was added and the mixture was stirred at 90° C. until no further conversion was observed. It was diluted with ethyl acetate and then it was washed with brine. The organic layer was dried over Na2SO4, filtered and concentrated under reduced pressure and purified via flash chromatography using ethyl acetate and methanol as eluents to obtain Preparation 26a as a mixture of diastereomers.

MS: (M+H)=821.0.

Preparation 26b: Ethyl (2R)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl) propanoate

6.7 g ethyl (2R)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 26a) (8.15 mmol) was dissolved in 75 mL ethanol, then 75 mL HCl (1.25 M in ethanol) was added and the mixture was stirred at room temperature until no further conversion was observed. It was concentrated under reduced pressure and purified via flash chromatography using ethyl acetate and methanol as eluents to obtain Preparation 26b as a mixture of diastereomers.

MS: (M+H)=737.0.

Preparation 26c: Ethyl (2R)-3-[2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate

5.5 g ethyl (2R)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (Preparation 26b) (7.46 mmol), 2.3 g (1-butyl-1H-pyrazol-5-yl)methanol (Preparation 9dd) (14.92 mmol) and 3.91 g triphenyl phosphine (14.92 mmol) were dissolved in 100 mL abs. toluene, then 2.6 g ditertbutyl azodicarboxylate (14.92 mmol) was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. It was concentrated under reduced pressure and purified via flash chromatography using ethyl acetate and methanol as eluents to obtain Preparation 26c as a mixture of diastereomers.

MS: (M+H)+=873.0.

Preparation 27: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluoro-3-methoxy-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(2-methoxypyrimidin-4-yl)methoxy]phenyl]propanoate

441 mg ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluoro-3-methoxy-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (Preparation 8g) (0.6 mmol), 252 mg (2-methoxypyrimidin-4-yl)methanol (1.8 mmol) and 472 mg triphenyl phosphine (1.8 mmol) were dissolved in 10 mL abs. toluene, then 414 mg ditertbutyl azodicarboxylate (1.8 mmol) was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. It was concentrated under reduced pressure and purified via flash chromatography using dichloromethane and methanol as eluents to obtain Preparation 27.

MS: (M+H)=856.6.

Preparation 28a: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluoro-3-hydroxy-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(2-methoxypyrimidin-4-yl)methoxy]phenyl]propanoate

857 mg ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluoro-3-methoxy-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(2-methoxy pyrimidin-4-yl)methoxy]phenyl]propanoate (Preparation 27) (1.0 mmol) was dissolved in 20 mL DCM, and 5.3 mL BBr3 (1M in DCM, 5.3 mmol) was added at 0° C. The mixture was stirred at 0° C. until no further conversion was observed. It was diluted with water, the pH was set to 6 with NaHCO3 (saturated aqueous solution), and then it was extracted with dichloromethane. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure and purified via flash chromatography using dichloromethane and methanol as eluents to obtain Preparation 28a.

1H NMR (400 MHz, DMSO-d6): 10.15 (br s, 1H), 8.66 (d, 1H), 8.59 (s, 1H), 7.29 (d, 1H), 7.28 (d, 1H), 7.17 (t, 1H), 7.16 (d, 1H), 7.13 (dd, 1H), 6.99 (d, 1H), 6.87 (dd, 1H), 6.75 (t, 1H), 6.65 (m, 1H), 6.32 (d, 1H), 5.48 (dd, 1H), 5.16 (d, 1H), 5.10 (d, 1H), 4.23 (m, 1H), 4.17 (m, 1H), 4.05 (m, 2H), 3.91 (s, 3H), 3.11 (dd, 1H), 2.89-2.47 (br s, 8H), 2.77 (br s, 2H), 2.57 (dd, 1H), 2.42 (br s, 3H), 1.89 (s, 3H), 1.05 (t, 3H).

MS: (M+H)=843.2.

Preparation 28b: Ethyl (2R)-2-[5-(3-chloro-4-methoxy-2-methyl-phenyl)-6-(4-fluoro-3-hydroxy-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(2-methoxypyrimidin-4-yl)methoxy]phenyl]propanoate Step A

To the solution of 3.212 g 4-chloro-5-iodo-thieno[2,3-d]pyrimidine (Preparation 1c, 10.83 mmol), 6.897 g K3PO4 (32.49 mmol), 388 mg bis(1-adamantyl)-butyl-phosphane (1.083 mmol) in 50 ml dimethoxyethane and 15 ml water 4.609 g 2-(3-chloro-4-methoxy-2-methyl-phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (Preparation 5d, 16.31 mmol) and 729 mg palladium(II) acetate (1.083 mmol) was added, and it was stirred at 60° C. for 2 h under nitrogen atmosphere. The reaction mixture was diluted with water and the pH was adjusted to 7 using 2N HCl. It was extracted with DCM, the combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and EtOAc as eluents to give 4-chloro-5-(3-chloro-4-methoxy-2-methyl-phenyl)thieno[2,3-d]pyrimidine.

1H NMR (400 MHz, DMSO-d6): 8.98 (s, 1H), 7.98 (s, 1H), 7.25 (d, 1H), 7.09 (d, 1H), 3.91 (s, 3H), 2.07 (s, 3H).

Step B

2.706 g of the product of Step A (8.35 mmol) was dissolved in 50 ml THF, the mixture was cooled to −78° C. and 5 mL lithium diisopropylamide (2M in THF, 10 mmol) was added dropwise and the mixture was stirred at this temperature for 30 minutes. Additional 4.5 mL lithium diisopropylamide (2M in THF, 9 mmol) was added dropwise, and the stirring was continued at −78° C. for 30 minutes and then 4.223 g of iodine (16.64 mmol) was added to the reaction mixture. After 30 minutes it was left to warm to room temperature. Water then saturated aq. NH4Cl solution was added to the mixture and then it was extracted with diethylether. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and EtOAc as eluents to give 4-chloro-5-(3-chloro-4-methoxy-2-methyl-phenyl)-6-iodo-thieno[2,3-d]pyrimidine.

MS: (M+H)+=452.0.

Step C

2.055 g of the product of Step B (4.57 mmol), 1.540 g 2-[4-fluoro-3-(methoxymethoxy)phenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (Preparation BA5, 5.459 mmol) and 2.965 g cesium carbonate (9.10 mmol) were dissolved in 30 mL dioxane and 10 mL water, and 322 mg bis(di-tert-butyl(4-dimethylaminophenyl)phosphine) dichloropalladium(II) (AtaPhos, 0.4548 mmol) was added. The reaction mixture was stirred under nitrogen at 55° C. until no further conversion was observed. The reaction mixture was cooled to room temperature, it was diluted with water and the pH was adjusted to 7 using 2 M HCl. It was extracted with DCM, the combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and EtOAc as eluents to give 4-chloro-5-(3-chloro-4-methoxy-2-methyl-phenyl)-6-[4-fluoro-3-(methoxymethoxy)phenyl]thieno[2,3-d]pyrimidine.

MS: (M+H)+=479.0.

Step D

To 1.824 g of the product of Step C (3.805 mmol) and 2.529 g ethyl (2R)-2-hydroxy-3-[2-[(2-methoxypyrimidin-4-yl)methoxy]phenyl]propanoate (Preparation 3ah, 7.610 mmol) in 40 mL tert-butanol 5.005 g cesium carbonate (15.36 mmol) was added and it was stirred at 65° C. until no further conversion was obtained. The reaction mixture was cooled to room temperature, it was diluted with water and the pH was adjusted to 7 using 2 M HCl. It was extracted with DCM, the combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and EtOAc as eluents to give ethyl (2R)-2-[5-(3-chloro-4-methoxy-2-methyl-phenyl)-6-[4-fluoro-3-(methoxymethoxy)phenyl]thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(2-methoxypyrimidin-4-yl)methoxy]phenyl]propanoate.

MS: (M+H)+=775.0.

Step E

1.373 g of the product of Step D (1.771 mmol) was dissolved in 50 mL HCl (1.25 M in EtOH) and the mixture was stirred at 50° C. until no further conversion was observed. It was cooled to room temperature then saturated aq. NaHCO3 solution was added to the reaction mixture, and it was extracted with DCM. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and EtOAc as eluents to give Preparation 28b.

HRMS calculated for C37H32ClFN4O7S: 730.1664; found 731.1746 (M+H).

Preparation 29: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(2-chloropyrimidin-4-yl)methoxy]phenyl]propanoate

Using Step A of General Procedure (Ia) and (2-chloropyrimidin-4-yl)methanol as the appropriate alcohol derivative Preparation 29 was obtained.

HRMS calculated for C42H41Cl2FN6O5S: 830.2220; found 831.2275 (M+H).

Preparation 30: Ethyl (2R)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy]phenyl]propanoate

43.00 g 4-chloro-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-iodo-thieno[2,3-d]pyrimidine (Preparation 13) (76.33 mmol), 34.3 g (2R)-2-hydroxy-3-[2-[[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy]phenyl]propanoate (Preparation 3br) (83.9 mmol) and 74.62 g Cs2CO3 (229 mmol) were placed in a 1 L flask. 200 mL tert-butanol and 200 mL DMSO were added and the mixture was stirred at 80° C. under N2 until no further conversion was observed. Reaction mixture was diluted with water then it was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. Residue was dissolved in 250 mL EtOH and 250 1.25 M HCl in EtOH and the mixture was stirred at room temperature until no further conversion was observed. Most of the EtOH was evaporated, then the HCl salt was carefully treated with saturated 10% K2CO3 solution, extracted with DCM, the combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using MeOH and EtOAc as eluents to obtain Preparation 30.

HRMS calculated for C43H44ClIN6O6S: 934.1776, found: 468.0966 and 468.0966 for the two diastereomers (M+2H).

Preparation 31: Ethyl (2R)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-hydroxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy]phenyl]propanoate

Using General Procedure (XXXIIIa) and 4-hydroxyphenylboronic acid as the appropriate boronic acid derivative Preparation 31 was obtained as a mixture of diastereomers.

HRMS calculated C49H49ClN6O7S: 900.3072; found 451.1630 (M+2H).

Preparation 32: Ethyl (2R)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-hydroxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[[1-(2,2,2-trifluoroethyl)pyrazol-5-yl]methoxy]phenyl]propanoate

386 mg (1 mmol) 5-bromo-4-chloro-6-[4-(methoxymethoxy)phenyl]thieno[2,3-d]pyrimidine (Preparation 2i), and 403 mg (1.05 mmol) ethyl 2-hydroxy-3-[2-[[2-(2,2,2-trifluoroethyl)pyrazol-3-yl]methoxy]phenyl]propanoate (Preparation 3 bp) were dissolved in 6 mL dioxane, then 977 mg (3 mmol) Cs2CO3 was added. The mixture was stirred at 70° C. under N2 until no further conversion was observed. Then 0.473 g (1.16 mmol) Preparation 5b, 71 mg AtaPhos (0.1 mmol) and 5 mL H2O were added, and the mixture was stirred under nitrogen at 70° C. until no further conversion was observed. Most of the volatiles were evaporated under reduced pressure, then it was diluted with dichloromethane and brine. After shaking the pH of the aqueous phase was set to 5 with 2 M HCl. After phase separation the aqueous phase was extracted with dichloromethane. The organic layers were combined and dried over Na2SO4, filtered and concentrated under reduced pressure. The product was separated via flash chromatography using DCM and MeOH as eluents. This intermediate was dissolved in 3 mL 1.25 M HCl/EtOH and stirred at 50° C. until no further conversion was observed. Mixture was poured into ice-water, pH was adjusted to 6 with saturated NaHCO3 solution and extracted with dichloromethane. The organic layers were combined and dried over Na2SO4, filtered and concentrated under reduced pressure. The product was separated via flash chromatography using DCM and MeOH as eluents to obtain Preparation 32.

MS: (M+H)+=865.2; (M−H)=863.0.

Preparation 33: Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-hydroxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[[2-(2,2,2-trifluoroethoxy]phenyl]propanoate Step A

386 mg (1 mmol) 5-bromo-4-chloro-6-[4-(methoxymethoxy)phenyl]thieno[2,3-d]pyrimidine (Preparation 2i), 351 mg (1.2 mmol) ethyl (2R)-2-hydroxy-3-[2-(2,2,2-trifluoroethoxy)phenyl]propanoate (Preparation 3b1) and 977 mg (3 mmol) Cs2CO3 were dissolved in 6 ml dioxane and stirred at 70° C. under N2 until no further conversion was observed. Then 473 mg (1.2 mmol) Preparation 5b, 71 mg (0.1 mmol) Ataphos, and 5 mL H2O were added to the mixture and stirred at 70° C. under N2 until no further conversion was observed. It was diluted with brine, the pH was set to 6 with 2 M HCl, and then it was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using DCM and MeOH as eluents. The diastereoisomer eluting later was collected.

MS: (M+H)+=829.2.

Step B

This intermediate was dissolved in 3 mL 1.25 M HCl/EtOH and 4 mL EtOH and stirred at 50° C. until no further conversion was observed. Mixture was poured into ice-water, the pH was set to 6 with 2 M HCl, and then it was extracted with DCM. The combined organic layers were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via flash chromatography using DCM and MeOH as eluents to obtain Preparation 33.

MS: (M+H)+=785.2. (M−H)=783.0.

Preparation 34: 2-(2-methyl-2,6-diazaspiro[3.3]heptan-6-yl)ethanol Step A: 2-(2-tert-butoxycarbonyl-2,6-diazaspiro[3.3]heptan-6-yl)ethanol

1.441 g (5 mmol) 2,6-diazaspiro[3.3]heptane-2-carboxylic acid tert-butyl ester hemioxylate was dissolved in 10 ml ACN, then 1.25 g (10 mmol) 2-bromoethanol and 2.073 g (15 mmol) K2CO3 were added and the mixture was heated to reflux for 16 hours. Mixture was then filtered and concentrated in vacuo and purified via flash chromatography using DCM and MeOH as eluents.

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 55 (35), 56 (37), 57 (70), 82 (33), 155 (100), 169 (17), 211 (56), 242 (2, [M+]).

Step B: 2-(2-methyl-2,6-diazaspiro[3.3]heptan-6-yl)ethanol

0.464 g (1.9 mmol) of the intermediate obtained from the above Step A was dissolved in 10 ml dry THF and cooled to 0° C. 5.7 ml 1M (in THF) LiAlH4 solution was added under N2 and the mixture was heated to reflux until no further conversion was observed. Then 215 μl water, 215 μl 15% NaOH solution were added and the mixture was stirred at 0° C. overnight. Mixture was filtered, filtrate was concentrated in vacuo to obtain Preparation 34.

1H-NMR (500 MHz, dmso-d6) δ ppm 4.34 (br, 1H), 3.28 (t, 2H), 3.13 (s, 4H), 3.1 (s, 4 H), 2.34 (t, 2H), 2.12 (s, 3H). 13C-NMR: (500 MHz, dmso-d6) δ ppm 66.2, 64.8, 61.8, 59.7, 46.1.

Preparation 35a: 1-iodoethyl acetate

Using General Procedure (XXXVII) and acetyl chloride as the appropriate alkanoyl-chloride derivative Preparation 35a was obtained.

1H NMR (400 MHz, CDCl3) δ 6.84 (q, 1H), 2.20 (d, 3H), 2.09 (s, 3H)

Preparation 35b: 1-iodoethyl 2,2-dimethylpropanoate

Using General Procedure (XXXVII) and 2,2-dimethylpropanoyl chloride as the appropriate alkanoyl-chloride derivative Preparation 35b was obtained.

1H NMR (400 MHz, CDCl3) δ 6.87 (q, 1H), 2.22 (d, 3H), 1.21 (s, 9H)

Preparation 35c: 1-iodoethyl propanoate

Using General Procedure (XXXVII) and propanoyl chloride as the appropriate alkanoyl-chloride derivative Preparation 35c was obtained.

1H NMR (400 MHz, CDCl3) δ 6.88 (q, 1H), 2.37 (q, 2H), 2.22 (d, 3H), 1.17 (t, 3H)

Preparation 35d: 1-iodoethyl 2-methylpropanoate

Using General Procedure (XXXVII) and 2-methylpropanoyl chloride as the appropriate alkanoyl-chloride derivative Preparation 35d was obtained.

1H NMR (400 MHz, CDCl3) δ 6.88 (q, 1H), 2.56 (sept, 1H), 2.22 (d, 3H), 1.19 (d, 6H)

Preparation 35e: 1-iodoethyl 2-methoxyacetate

Using General Procedure (XXXVII) and methoxyacetyl chloride as the appropriate alkanoyl-chloride derivative Preparation 35e was obtained.

1H NMR (400 MHz, CDCl3) δ 6.94 (q, 1H), 4.06 (s, 2H), 3.49 (s, 3H), 2.24 (d, 3H)

Preparation 36: Ethyl (2R)-2-[5-(3-chloro-2-cyano-4-hydroxy-phenyl)-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy]phenyl]propanoate

Using General Procedure (XXXIV, Step A) and (3-chloro-2-cyano-4-triisopropylsilyloxy-phenyl)boronic acid (Preparation 5x) as the appropriate boronic acid we observed complete desililation during the Suzuki-coupling. After purification of the crude product by flash chromatography using heptane and EtOAc as eluents the ethyl (2R)-2-[5-(3-chloro-2-cyano-4-hydroxy-phenyl)-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy]phenyl]propanoate was obtained as a mixture of the diastereoisomers.

MS: (M+H)=788.0

Preparation 37: Ethyl (2R)-2-[5-[3-chloro-2-(methoxymethoxy)-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy]phenyl]propanoate

Using General Procedure (XXXIV, Step A) and [2-chloro-3-(methoxymethoxy)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxyl-triisopropyl-silane (Preparation 5y) as the appropriate boronic ester. The crude product was purified by flash chromatography using heptane and EtOAc as eluents the ethyl (2R)-2-[5-[3-chloro-2-(methoxymethoxy)-4-triisopropylsilyloxy-phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy]phenyl]propanoate intermediate was obtained as a mixture of the diastereoisomers.

MS (M+H): 979.2.

The resulting intermediate was dissolved in dry THF and 1.2 eq (1 M in THF) tetrabutylammonium fluoride solution was added. The mixture was stirred at room temperature until no further conversion was observed. Volatiles were evaporated under reduced pressure. The residue was purified via flash chromatography using heptane and EtOAc as eluents to obtain ethyl (2R)-2-[5-[3-chloro-4-hydroxy-2-(methoxymethoxy)phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy]phenyl]propanoate as a diastereoisomer mixture.

MS (M−H): 821.0.

Using General Procedure (XXXVIII) and this intermediate as the appropriate phenol derivative and 2-(4-methylpiperazin-1-yl)ethanol as the appropriate alcohol Preparation 37 was obtained as a mixture of the diastereoisomers.

MS (M+H): 948.8.

Preparation 38: Ethyl (2R)-2-[5-[3-chloro-2-hydroxy-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy]phenyl]propanoate

2.00 g ethyl (2R)-2-[5-[3-chloro-2-(methoxymethoxy)-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy]phenyl]propanoate (Preparation 37) (2.10 mmol) was dissolved in 20 ml 1.25 M HCl in EtOH and stirred at room temperature until no further conversion was observed. The pH was adjusted to 6 and with NH4CO3, and then it was extracted with EtOAc. Organic phase was dried over Na2SO4, filtered and evaporated under reduced pressure to obtain Preparation 38 as a mixture of the diastereoisomers.

MS (M+H): 904.8.

Preparation BA1: 4,4,5,5-tetramethyl-2-thieno[3,2-b]thiophen-3-yl-1,3,2-dioxaborolane

0.782 g 3-bromothieno[3,2-b]thiophene (3.6 mmol), 3.626 g 4,4,5,5-tetramethyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3,2-dioxaborolane (14 mmol), 0.783 g PdCl2×dppf (1.07 mmol) and 2.102 g KOAc (21.4 mmol) were dissolved in 4 mL dioxane under N2. It was heated to 60° C. for 5 hours. The reaction mixture was cooled down and filtered through celite. The filtrate was concentrated and purified via flash chromatography using heptane and EtOAc as eluents to give Preparation BA1.

1H NMR (500 MHz, DMSO-d6): 8.11 (d, 1H), 7.67 (dd, 1H), 7.45 (d, 1H), 1.32 (s, 12H).

HRMS calculated for C12H15BO2S2: 266.0607, found: 267.0682 (M+H).

Preparation BA2: 4,4,5,5-tetramethyl-2-thieno[3,2-b]thiophen-2-yl-1,3,2-dioxaborolane

0.982 g thieno[3,2-b]thiophene (7.0 mmol) was dissolved in 40 mL THF under N2 and cooled to −78° C. 7 ml nBuLi (1.6 M in hexanes, 7.0 mmol) was added and the mixture was stirred at −78° C. for 1 hour. Then 1.6 mL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (7.7 mmol) was added and after 10 minutes stirring the mixture was allowed to warm up to room temperature. It was quenched with saturated aq. NH4Cl solution, then extracted with THF, dried over Na2SO4, filtered and concentrated and purified via flash chromatography using heptane and EtOAc as eluents to give Preparation BA2.

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 120 (19), 165 (25), 166 (100), 167 (44), 180 (17), 206 (22), 223 (60), 266 (68, [M+]).

Preparation BA3: 2-[4-fluoro-3-(methoxymethyl)phenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

0.801 g LiCl (19 mmol) was heated at 250° C. for 10 minutes under N2. Then it was cooled to room temperature and the flask was charged with 0.911 g Mg (38 mmol) and 30 mL dry

THF. The Mg was activated with 0.15 mL iBu2AlH (1 M in THF, 0.15 mmol) for 10 minutes, then it was cooled to 0° C. and 3.313 g 4-bromo-1-fluoro-2-(methoxymethyl)benzene (15 mmol) was added. After formation of the Grignard reagent (appr. 30 minutes) at 0° C. 4 mL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (20 mmol) was added and the reaction mixture was stirred for 30 minutes, then filtered through celite, diluted with EtOAc and washed with saturated aq. NH4Cl. The aqueous phase was back-extracted with EtOAc. The combined organic phases were dried over Na2SO4, filtered, concentrated and purified via flash chromatography using heptane and EtOAc as eluents to give Preparation BA3.

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 59 (21), 85 (20), 134 (24), 135 (100), 136 (28), 150 (30), 165 (24), 166 (43), 167 (95), 192 (20), 251 (44, [M+]).

Preparation BA4: 2-(5-fluoro-2-furyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

In a 2 L flask 57.7 g 5-bromo-2-furoic acid (300 mmol) and 108.1 g Selectfluor (300 mmol) were added to 900 mL pentane, than 270 mL saturated NaHCO3 solution (300 mmol) was added in portions. The reaction mixture was stirred at room temperature for 1 hour. The layers were separated, and the aqueous layer was extracted with pentane. The combined organic layers were dried over MgSO4, than filtered into a dried 3-necked 4 L flask. The resulting solution was diluted with 450 mL dry THF under N2, than cooled to -78° C. 18 mL nBuLi (10 M in hexanes, 180 mmol) was added dropwise (T<−65° C.) than the reaction mixture was stirred for 5 minutes. 36 mL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (180 mmol) was added slowly (T<−70° C.) and the reaction mixture was stirred for 10 minutes. Cooling was removed, and the reaction mixture was warmed up to −15° C. than quenched with 600 mL saturated aq. NH4Cl solution and stirred for 15 minutes. The layers were separated and the aqueous layer was extracted with Et2O. The combined organic layers were dried over MgSO4, filtered and concentrated to give Preparation BA4.

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 85.1 (21), 112.2 (20), 126.1 (26), 127.1 (100), 169.1 (21), 197.0 (14), 212.0 (21, [M+]).

1H NMR (400 MHz, DMSO-d6): 7.08 (t, 1H), 5.86 (dd, 1H), 1.26 (s, 12H).

Preparation BA5: 2-[4-fluoro-3-(methoxymethoxy)phenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane Step A

1.91 g 5-bromo-2-fluoro-phenol (10 mmol) was dissolved in acetone (5 mL). 1.20 g chloro(methoxy)methane (15 mmol) and 2.76 g K2CO3 (20 mmol) was added and the reaction mixture was stirred at room temperature until no further conversion was observed. The volatiles were evaporated under reduced pressure, and the residue was diluted with water and extracted with DCM. The combined organic layers were dried over Na2SO4 and concentrated under reduced pressure. The crude product was purified via flash chromatography using heptane and EtOAc as eluents to obtain 4-bromo-1-fluoro-2-(methoxymethoxy)benzene.

1H NMR (400 MHz, CDCl3): 7.37 (dd, 1H), 7.13-7.09 (m, 1H), 6.99 (dd, 1H), 5.22 (s, 2H), 3.54 (s, 3H).

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 63 (40), 81 (71), 82 (45), 94 (100), 96 (35), 161 (91), 163 (87), 175 (34), 177 (35), 204 (28), 206 (27), 234 (91, [M+]), 236 (89, [M+]).

Step B

0.319 g LiCl (7.5 mmol) was heated at 250° C. for 10 minutes under N2. Then it was cooled to room temperature and the flask was charged with 0.366 g Mg (15 mmol) and 15 mL dry THF. The Mg was activated with 0.06 mL iBu2AlH (1 M in THF, 0.06 mmol) for 10 minutes, then it was cooled to 0° C. and 1.416 g 4-bromo-1-fluoro-2-(methoxymethoxy)benzene (6 mmol) was added. After formation of the Grignard reagent (appr. 30 minutes) at 0° C. 1.5 mL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (7.5 mmol) was added and the reaction mixture was stirred for 30 minutes, then filtered through celite, diluted with EtOAc and washed with saturated aq. NH4Cl. The aqueous phase was extracted with EtOAc. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure and purified via flash chromatography using heptane and EtOAc as eluents to obtain Preparation BA5.

1H NMR (400 MHz, CDCl3): 7.60 (dd, 1H), 7.48-7.44 (m, 1H), 7.10 (dd, 1H), 5.27 (s, 2H), 3.56 (s, 3H), 1.35 (s, 12H).

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 57 (42), 59 (54), 83 (31), 85 (30), 138 (40), 151 (51), 152 (54), 153 (42), 166 (100), 237 (31), 252 (69), 282 (49, [M+]).

Compounds of the invention display axial chirality. They can be isolated as a mixture of atropoisomers or as individual atropoisomers (S, or Ra).

General Procedure (Ia) Step A

1 eq. ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl) propanoate (Preparation 8a), 2 eq. of the appropriate alcohol and 2 eq. triphenyl phosphine were dissolved in abs. toluene (0.2 M for the phenol), then 2 eq. ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using ethyl acetate and methanol as eluents.

Step B

The obtained intermediate was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with dichloromethane. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

General Procedure (Ib) Step A

1 eq. ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(2-methylsulfanyl pyrimidin-4-yl)methoxy]phenyl]propanoate (Preparation 10a), 3.0 eq. of the appropriate boronic acid derivative and 3.0 eq. copper(I) thiophenecarboxylate were dissolved in dry THF (0.1 M for Preparation 10a), then 0.15 eq. Pd(PPh3)4 was added. The mixture was stirred at 70° C. under nitrogen until no further conversion was observed. Then it was concentrated under reduced pressure and the crude intermediate was purified via flash chromatography using dichloromethane and methanol as eluents.

Step B

The obtained intermediate was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 5 mM aqueous NH4HCO3 solution and MeCN as eluents.

Example 1 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl) propanoic Acid

Using General Procedure (Ia) and methanol as the appropriate alcohol, Example 1 was obtained. HRMS calculated for C36H36ClFN4O5S: 690.2079; found 691.2147 (M+H).

Example 2 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2R)-tetrahydrofuran-2-ylmethoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and [(2R)-tetrahydrofuran-2-yl]methanol as the appropriate alcohol, Example 2 was obtained. HRMS calculated for C40H42ClFN4O6S: 760.2498; found 761.2550 (M+H).

Example 3 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(2,2,2-trifluoroethoxy)phenyl]propanoic Acid Step A

211 mg ethyl (2R)-2-[(5Sa)-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (Preparation 8a) (0.3 mmol) and 138 mg K2CO3 (1.0 mmol) were dissolved in 2 mL DMF, then 232 mg 2,2,2-trifluoroethyl trifluoromethanesulfonate (1.0 mmol) was added. The mixture was stirred at room temperature under nitrogen until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with dichloromethane, dried over Na2SO4, filtered and concentrated under reduced pressure.

Step B

The obtained intermediate was dissolved in 8 mL dioxane-water 1:1 and 150 mg LiOH×H2O (3.57 mmol) was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with dichloromethane, dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 5 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Example 3. HRMS calculated for C37H35ClF4N4O5S: 758.1953; found 759.1999 (M+H).

Example 4 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(2,2-difluoroethoxy)phenyl]propanoic Acid

Using General Procedure (Ia) and 2,2-difluoroethanol as the appropriate alcohol, Example 4 was obtained. HRMS calculated for C37H36ClF3N4O5S: 740.2047; found 741.2119 (M+H).

Example 5 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1R or S)-1-(1-pentyl-1H-pyrazol-5-yl)ethoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (1R or S)-1-(1-pentyl-1H-pyrazol-5-yl)ethanol (Preparation 9dn) as the appropriate alcohol, Example 5 was obtained. HRMS calculated for C45H50ClFN6O5S: 840.3236; found 421.1674 (M+2H).

Example 6 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d[pyrimidin-4-yl]oxy}-3-{2-[(1S or R)-1-(1-pentyl-1H-pyrazol-5-yl)ethoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (/S or R)-1-(1-pentyl-1H-pyrazol-5-yl)ethanol (Preparation 9do) as the appropriate alcohol, Example 6 was obtained. HRMS calculated for C45H50ClFN6O5S: 840.3236; found 421.1679 (M+2H).

Example 7 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(6-methoxy-2-phenylpyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (6-methoxy-2-phenyl-pyrimidin-4-yl)methanol (prepared according to Tabei K. et al., J. Heterocyclic Chem. 1985 22, 569-574,) as the appropriate alcohol, Example 7 was obtained. HRMS calculated for C47H44ClFN6O6S: 874.2716; found 438.1444 (M+2H).

Example 8 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2,6-dimethoxypyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (2,6-dimethoxypyrimidin-4-yl)methanol (Preparation 9cd) as the appropriate alcohol, Example 8 was obtained. HRMS calculated for C42H42ClFN6O7S: 828.2508; found 415.1340 (M+2H).

Example 9 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(5-methyl-1,2-oxazol-3-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (5-methyl-1,2-isoxazol-3-yl)methanol as the appropriate alcohol, Example 9 was obtained. HRMS calculated for C40H39ClFN5O6S: 771.2294; found 386.6226 (M+2H).

Example 10 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(5-fluoropyridin-2-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (5-fluoro-2-pyridyl)methanol as the appropriate alcohol, Example 10 was obtained. HRMS calculated for C41H38ClF2N5O5S: 785.2250; found 393.6212 (M+2H).

Example 11 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[6-(furan-2-yl)pyridin-2-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [6-(2-furyl)-2-pyridyl]methanol (Preparation 9ea) as the appropriate alcohol, Example 11 was obtained. HRMS calculated for C45H41ClFN5O6S: 833.2450; found 417.6304 (M+2H).

Example 12 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[6-(morpholin-4-yl)pyridin-2-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and (6-(morpholin-4-yl)-pyridin-2-yl)methanol (prepared according to WO 02/42305 A1) as the appropriate alcohol, Example 12 was obtained.

HRMS calculated for C45H46ClFN6O6S: 852.2872; found 427.1494 (M+2H).

Example 13 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(6-ethoxypyridin-2-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (6-ethoxy-2-pyridyl)methanol as the appropriate alcohol, Example 13 was obtained. HRMS calculated for C43H43ClFN5O6S: 811.2607; found 406.6361 (M+2H).

Example 14 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyridin-2-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (Ia) and 2-pyridylmethanol as the appropriate alcohol, Example 14 was obtained. HRMS calculated for C41H39ClFN5O5S: 767.2344; found 384.6257 (M+2H).

Example 15 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(cyclohexylmethyl)-1H-pyrazol-3-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [1-(cyclohexylmethyl)-1H-pyrazol-3-yl]methanol (Preparation 9dw) as the appropriate alcohol, Example 15 was obtained. HRMS calculated for C46H50ClFN6O5S: 852.3236; found 427.1688 (M+2H).

Example 16 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-methylpyridin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (2-methyl-4-pyridyl)methanol as the appropriate alcohol, Example 16 was obtained. HRMS calculated for C42H41ClFN5O5S: 781.2501; found 391.6327 (M+2H).

Example 17 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(trifluoromethyl)pyridin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(trifluoromethyl)-4-pyridyl]methanol as the appropriate alcohol, Example 17 was obtained. HRMS calculated for C42H38ClF4N5O5S: 835.2218; found 836.2334 (M+H).

Example 18 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(thiophen-2-yl)pyridin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(2-thienyl)-4-pyridyl]methanol (Preparation 9eb) as the appropriate alcohol, Example 18 was obtained. HRMS calculated for C45H41ClFN5O5S2: 849.2222; found 425.6192 (M+2H).

Example 19 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-chloropyridin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (2-chloro-4-pyridyl)methanol as the appropriate alcohol, Example 19 was obtained. HRMS calculated for C41H38Cl2FN5O5S: 801.1955; found 802.2017 (M+H).

Example 20 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(morpholin-4-yl)pyridin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(morpholin-4-yl)pyridin-4-yl]methanol as the appropriate alcohol, Example 20 was obtained. HRMS calculated for C45H46ClFN6O6S: 852.2872; found 427.1490 (M+2H).

Example 21 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-methoxypyridin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (2-methoxy-4-pyridyl)methanol as the appropriate alcohol, Example 21 was obtained. HRMS calculated for C42H41ClFN5O6S: 797.2450; found 399.6302 (M+2H).

Example 22 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxyethoxy)pyridin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(2-methoxyethoxy)pyridin-4-yl]methanol as the appropriate alcohol, Example 22 was obtained. HRMS calculated for C44H45ClFN5O7S: 841.2712; found 421.6410 (M+2H).

Example 23 (2R)-3-{2-[(2-tert-butylpyrimidin-4-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (Ia) and (2-tert-butylpyrimidin-4-yl)methanol (Preparation 9bh) as the appropriate alcohol, Example 23 was obtained. HRMS calculated for C44H46ClFN6O5S: 824.2923; found 413.1528 (M+2H).

Example 24 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(propan-2-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and (2-isopropylpyrimidin-4-yl)methanol (Preparation 9bd) as the appropriate alcohol, Example 24 was obtained. HRMS calculated for C43H44ClFN6O5S: 810.2766; found 406.1465 (M+2H).

Example 25 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(trifluoromethyl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and (2-trifluoromethylpyrimidin-4-yl)methanol (Preparation 9bj) as the appropriate alcohol, Example 25 was obtained. HRMS calculated for C41H37ClF4N6O5S: 836.2171; found 837.2295 (M+H).

Example 26 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-cyclopropylpyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (2-cyclopropylpyrimidin-4-yl)methanol (Preparation 9be) as the appropriate alcohol, Example 26 was obtained. HRMS calculated for C43H42ClFN6O5S: 808.2610; found 405.1363 (M+2H).

Example 27 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy[phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(4-chlorophenyl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(4-chlorophenyl)pyrimidin-4-yl]methanol (Preparation 9bo) as the appropriate alcohol, Example 27 was obtained. HRMS calculated for C46H41Cl2FN6O5S: 878.2220; found 879.2355 (M+H).

Example 28 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy[phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-cyclopentylpyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (2-cyclopentylpyrimidin-4-yl)methanol (Preparation 9bi) as the appropriate alcohol, Example 28 was obtained. HRMS calculated for C45H46ClFN6O5S: 836.2923; found 419.1537 (M+2H).

Example 29 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-phenylpyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (2-phenylpyrimidin-4-yl)methanol as the appropriate alcohol, Example 29 was obtained. HRMS calculated for C46H42ClFN6O5S: 844.2610; found 423.1363 (M+2H).

Example 30 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(2-methoxyphenyl)pyrimidin-4-yl]methanol (Preparation 9bp) as the appropriate alcohol, Example 30 was obtained. HRMS calculated for C47H44ClFN6O6S: 874.2716; found 438.1415 (M+2H).

Example 31 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(pyridin-2-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(2-pyridyl)pyrimidin-4-yl]methanol (Preparation 9bq) as the appropriate alcohol, Example 31 was obtained. HRMS calculated for C45H41ClFN7O5S: 845.2562; found 423.6373 (M+2H).

Example 32 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(pyridin-3-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(3-pyridyl)pyrimidin-4-yl]methanol (Preparation 9br) as the appropriate alcohol, Example 32 was obtained. HRMS calculated for C45H41ClFN7O5S: 845.2562; found 423.6337 (M+2H).

Example 33 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(thiophen-2-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(2-thienyl)pyrimidin-4-yl]methanol (Preparation 9bv) as the appropriate alcohol, Example 33 was obtained. HRMS calculated for C44H40ClFN6O5S2: 850.2174; found 851.2245 (M+H).

Example 34 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(pyridin-4-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(4-pyridyl)pyrimidin-4-yl]methanol (Preparation 9bs) as the appropriate alcohol, Example 34 was obtained. HRMS calculated for C45H41ClFN7O5S: 845.2562; found 423.6358 (M+2H).

Example 35 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(furan-3-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(3-furyl)pyrimidin-4-yl]methanol (Preparation 9bt) as the appropriate alcohol, Example 35 was obtained. HRMS calculated for C44H40ClFN6O6S: 834.2403; found 835.2443 (M+H).

Example 36 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(1,3-thiazol-2-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(2-thiazolyl)pyrimidin-4-yl]methanol (Preparation 9bx) as the appropriate alcohol, Example 36 was obtained. HRMS calculated for C43H39ClFN7O5S2: 851.2127; found 426.6120 (M+2H).

Example 37 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-ethylpyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (2-ethylpyrimidin-4-yl)methanol (Preparation 9ba) as the appropriate alcohol, Example 37 was obtained. HRMS calculated for C42H42ClFN6O5S: 796.2610; found 399.1381 (M+2H).

Example 38 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methylpropyl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(2-methylpropyl)pyrimidin-4-yl]methanol (Preparation 9bf) as the appropriate alcohol, Example 38 was obtained. HRMS calculated for C44H46ClFN6O5S: 824.2923; found 825.2998 (M+H).

Example 39 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(cyclopropylmethyl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(cyclopropylmethyl)pyrimidin-4-yl]methanol (Preparation 9bg) as the appropriate alcohol, Example 39 was obtained. HRMS calculated for C44H44ClFN6O5S: 822.2766; found 412.1458 (M+2H).

Example 40 (2R)-3-{2-[(2-benzylpyrimidin-4-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (Ia) and (2-benzylpyrimidin-4-yl)methanol (Preparation 9by) as the appropriate alcohol, Example 40 was obtained. HRMS calculated for C47H44ClFN6O5S: 858.2766; found 430.1471 (M+2H).

Example 41 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-propylpyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (2-propylpyrimidin-4-yl)methanol (Preparation 9bb) as the appropriate alcohol, Example 41 was obtained. HRMS calculated for C43H44ClFN6O5S: 810.2766; found 406.1459 (M+2H).

Example 42 (2R)-3-{2-[(2-butylpyrimidin-4-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (Ia) and (2-butylpyrimidin-4-yl)methanol (Preparation 9bc) as the appropriate alcohol, Example 42 was obtained. HRMS calculated for C44H46ClFN6O5S: 824.2923; found 413.1500 (M+2H).

Example 43 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-({2-[2-(dimethylamino)ethyl]pyrimidin-4-yl}methoxy)phenyl]propanoic Acid

Using General Procedure (Ia) and [2-[2-(dimethylamino)ethyl]pyrimidin-4-yl]methanol (Preparation 9bm) as the appropriate alcohol, Example 43 was obtained. HRMS calculated for C44H47ClFN7O5S: 839.3032; found 420.6614 (M+2H).

Example 44 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxyethyl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(2-methoxyethyl)pyrimidin-4-yl]methanol (Preparation 9bl) as the appropriate alcohol, Example 44 was obtained. HRMS calculated for C43H44ClFN6O6S: 826.2716; found 414.1439 (M+2H).

Example 45 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(methoxymethyl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(methoxymethyl)pyrimidin-4-yl]methanol (Preparation 9bk) as the appropriate alcohol, Example 45 was obtained. HRMS calculated for C42H42ClFN6O6S: 812.2559; found 813.2622 (M+H).

Example 46 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(phenoxymethyl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(phenoxymethyl)pyrimidin-4-yl]methanol (Preparation 9bz) as the appropriate alcohol, Example 46 was obtained. HRMS calculated for C47H44ClFN6O6S: 874.2716; found 875.2790 (M+H).

Example 47 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(ethoxymethyl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(ethoxymethyl)pyrimidin-4-yl]methanol (Preparation 9bn) as the appropriate alcohol, Example 47 was obtained. HRMS calculated for C43H44ClFN6O6S: 826.2716; found 827.2783 (M+H).

Example 48 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-({2-[(2-methoxyethyl)(methyl)amino]pyrimidin-4-yl}methoxy)phenyl]propanoic Acid

Using General Procedure (Ia) and [2-[2-methoxyethyl(methyl)amino]pyrimidin-4-yl]methanol (Preparation 9ap) as the appropriate alcohol, Example 48 was obtained.

HRMS calculated for C44H47ClFN7O6S: 855.2981; found 428.6583 (M+2H).

Example 49 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(1H-pyrazol-1-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and (2-(1H-pyrazol-1-yl)pyrimidin-4-yl)methanol (Preparation 9bw) as the appropriate alcohol, Example 49 was obtained. HRMS calculated for C43H40ClFN8O5S: 834.2515; found 418.1327 (M+2H).

Example 50 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(4-methylpiperazin-1-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(4-methylpiperazin-1-yl)pyrimidin-4-yl]methanol (Preparation 9aq) as the appropriate alcohol, Example 50 was obtained. HRMS calculated for C45H48ClFN8O5S: 866.3141; found 434.1640 (M+2H).

Example 51 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(1H-1,2,3-triazol-1-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(1H-1,2,3-triazol-1-yl)pyrimidin-4-yl]methanol (Preparation 9as) as the appropriate alcohol, Example 51 was obtained. HRMS calculated for C42H39ClFN9O5S: 835.2467; found 418.6292 (M+2H).

Example 52 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(morpholin-4-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and (2-(morpholin-4-yl)pyrimidin-4-yl)methanol (Preparation 9ar) as the appropriate alcohol, Example 52 was obtained. HRMS calculated for C44H45ClFN7O6S: 853.2825; found 427.6484 (M+2H).

Example 53 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-({2-[(2-methoxyethyl)amino]pyrimidin-4-yl}methoxy)phenyl]propanoic Acid

Using General Procedure (Ia) and [2-(2-methoxyethylamino)pyrimidin-4-yl]methanol (Preparation 9ao) as the appropriate alcohol, Example 53 was obtained. HRMS calculated for C43H45ClFN7O6S: 841.2825; found 421.6505 (M+2H).

Example 54 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-methoxypyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (2-methoxypyrimidin-4-yl)methanol as the appropriate alcohol, Example 54 was obtained. HRMS calculated for C41H40ClFN6O6S: 798.2403; found 400.1284 (M+2H).

Example 55 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy[phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(propan-2-yloxy)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and (2-isopropoxypyrimidin-4-yl)methanol (Preparation 9ae) as the appropriate alcohol, Example 55 was obtained. HRMS calculated for C43H44ClFN6O6S: 826.2716; found 414.1442 (M+2H).

Example 56 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-phenoxypyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (2-phenoxypyrimidin-4-yl)methanol (Preparation 9ak) as the appropriate alcohol, Example 56 was obtained. HRMS calculated for C46H42ClFN6O6S: 860.2559; found 431.1333 (M+2H).

Example 57 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-ethoxypyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (2-ethoxypyrimidin-4-yl)methanol (Preparation 9ad) as the appropriate alcohol, Example 57 was obtained. HRMS calculated for C42H42ClFN6O6S: 812.2559; found 407.1342 (M+2H).

Example 58 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2,2,2-trifluoroethoxy)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(2,2,2-trifluoroethoxy)pyrimidin-4-yl]methanol (Preparation 9ai) as the appropriate alcohol, Example 58 was obtained. HRMS calculated for C42H39ClF4N6O6S: 866.2276; found 434.1195 (M+2H).

Example 59 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(pyridin-4-ylmethoxy)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(4-pyridylmethoxy)pyrimidin-4-yl]methanol (Preparation 9aw) as the appropriate alcohol, Example 59 was obtained. HRMS calculated for C46H43ClFN7O6S: 875.2668; found 438.6442 (M+2H).

Example 60 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-({2-[(1-methyl-1H-imidazol-5-yl)methoxy]pyrimidin-4-yl}methoxy)phenyl]propanoic Acid

Using General Procedure (Ia) and {2-[(1-methyl-1H-imidazol-5-yl)methoxy]pyrimidin-4-yl}methanol (Preparation 9ay) as the appropriate alcohol, Example 60 was obtained.

HRMS calculated for C45H44ClFN8O6S: 878.2777; found 440.1451 (M+2H).

Example 61 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-propoxypyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (2-propoxypyrimidin-4-yl)methanol (Preparation 9af) as the appropriate alcohol, Example 61 was obtained. HRMS calculated for C43H44ClFN6O6S: 826.2716; found 414.1423 (M+2H).

Example 62 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(3,3,3-trifluoropropoxy)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(3,3,3-trifluoropropoxy)pyrimidin-4-yl]methanol (Preparation 9aj) as the appropriate alcohol, Example 62 was obtained. HRMS calculated for C43H41ClF4N6O6S: 880.2433; found 441.1294 (M+2H).

Example 63 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxyethoxy)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(2-methoxyethoxy)pyrimidin-4-yl]methanol (Preparation 9ag) as the appropriate alcohol, Example 63 was obtained. HRMS calculated for C43H44ClFN6O7S: 842.2665; found 422.1385 (M+2H).

Example 64 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-ethoxyethoxy)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-(2-ethoxyethoxy)pyrimidin-4-yl]methanol (Preparation 9ah) as the appropriate alcohol, Example 64 was obtained. HRMS calculated for C44H46ClFN6O7S: 856.2821; found 429.1497 (M+2H).

Example 65 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(methylsulfanyl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and (2-methylsulfanylpyrimidin-4-yl)methanol (Preparation 9aa) as the appropriate alcohol, Example 65 was obtained. HRMS calculated for C41H40ClFN6O5S2: 814.2174; found 815.2260 (M+H).

Example 66 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-({2-[(3-methoxypropyl)sulfanyl]pyrimidin-4-yl}methoxy)phenyl]propanoic Acid

Using General Procedure (Ia) and [2-(3-methoxypropylsulfanyl)pyrimidin-4-yl]methanol (Preparation 9ac) as the appropriate alcohol, Example 66 was obtained. HRMS calculated for C44H46ClFN6O6S2: 872.2593; found 437.1384 (M+2H).

Example 67 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-({2-[(2-methoxyethyl)sulfanyl]pyrimidin-4-yl}methoxy)phenyl]propanoic Acid

Using General Procedure (Ia) and [2-(2-methoxyethylsulfanyl)pyrimidin-4-yl]methanol (Preparation 9ab) as the appropriate alcohol, Example 67 was obtained. HRMS calculated for C43H44ClFN6O6S2: 858.2436; found 430.1286 (M+2H).

Example 68 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrimidin-4-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (Ia) and pyrimidin-4-ylmethanol as the appropriate alcohol, Example 68 was obtained. HRMS calculated for C40H38ClFN6O5S: 768.2297; found 769.2358 (M+H).

Example 69 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-methyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (1-methyl-1H-imidazol-5-yl)methanol as the appropriate alcohol, Example 69 was obtained. HRMS calculated for C40H40ClFN6O5S: 770.2453; found 771.2527 (M+H).

Example 70 (2R)-3-{2-[(1-tert-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (Ia) and (1-tert-butyl-1H-pyrazol-5-yl)methanol (Preparation 9dt) as the appropriate alcohol, Example 70 was obtained. HRMS calculated for C43H46ClFN6O5S; 812.2923; found 813.3030 (M+H).

Example 71 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(propan-2-yl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [1-(propan-2-yl)-1H-pyrazol-5-yl]methanol (Preparation 9dc) as the appropriate alcohol, Example 71 was obtained. HRMS calculated for C42H44ClFN6O5S: 798.2766; found 400.1469 (M+2H).

Example 72 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-cyclopentyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (1-cyclopentyl-1H-pyrazol-5-yl)methanol (Preparation 9dg) as the appropriate alcohol, Example 72 was obtained. HRMS calculated for C44H46ClFN6O5S: 824.2923; found 413.1559 (M+2H).

Example 73 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-cyclohexyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (1-cyclohexyl-1H-pyrazol-5-yl)methanol (Preparation 9dh) as the appropriate alcohol, Example 73 was obtained. HRMS calculated for C45H48ClFN6O5S: 838.3079; found 839.3165 (M+H).

Example 74 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-phenyl-1H-pyrazol-5-yl)methoxyl phenyl}propanoic Acid

Using General Procedure (Ia) and (1-phenyl-1H-pyrazol-5-yl)methanol as the appropriate alcohol, Example 74 was obtained. HRMS calculated for C45H42ClFN6O5S: 832.2610; found 833.2656 (M+H).

Example 75 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and (1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazol-5-yl)methanol (Preparation 9di) as the appropriate alcohol, Example 75 was obtained.

HRMS calculated for C44H46ClFN6O6S: 840.2872; found 841.2913 (M+H).

Example 76 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-ethyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (1-ethyl-1H-pyrazol-5-yl)methanol (Preparation 9da) as the appropriate alcohol, Example 76 was obtained. HRMS calculated for C41H42ClFN6O5S: 784.2610; found 785.2679 (M+H).

Example 77 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(2,2,2-trifluoroethyl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [1-(2,2,2-trifluoroethyl)-1H-pyrazol-5-yl]methanol (Preparation 9du) as the appropriate alcohol, Example 77 was obtained. HRMS calculated for C41H39ClF4N6O5S: 838.2327; found 839.2389 (M+H).

Example 78 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(cyclopropylmethyl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [1-(cyclopropylmethyl)-1H-pyrazol-5-yl]methanol (Preparation 9df) as the appropriate alcohol, Example 78 was obtained. HRMS calculated for C43H44ClFN6O5S: 810.2766; found 406.1464 (M+2H).

Example 79 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(4-methoxybenzyl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [1-(4-methoxybenzyl)-1H-pyrazol-5-yl]methanol (Preparation 9dk) as the appropriate alcohol, Example 79 was obtained. HRMS calculated for C47H46ClFN6O6S: 876.2872; found 439.1531 (M+2H).

Example 80 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(cyclohexylmethyl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [1-(cyclohexylmethyl)-1H-pyrazol-5-yl]methanol (Preparation 9dv) as the appropriate alcohol, Example 80 was obtained. HRMS calculated for C46H50ClFN6O5S: 852.3236; found 427.1679 (M+2H).

Example 81 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-propyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (1-propyl-1H-pyrazol-5-yl)methanol (Preparation 9db) as the appropriate alcohol, Example 81 was obtained. HRMS calculated for C42H44ClFN6O5S: 798.2766; found 400.1433 (M+2H).

Example 82 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(3-methylbutyl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [1-(3-methylbutyl)-1H-pyrazol-5-yl]methanol (Preparation 9de) as the appropriate alcohol, Example 82 was obtained. HRMS calculated for C44H48ClFN6O5S: 826.3079; found 827.3123 (M+H).

Example 83 (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (Ia) and (1-butyl-1H-pyrazol-5-yl)methanol (Preparation 9dd) as the appropriate alcohol, Example 83 was obtained. HRMS calculated for C43H46ClFN6O5S: 812.2923; found 407.1551 (M+2H).

Example 84 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(4,4,4-trifluorobutyl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [1-(4,4,4-trifluorobutyl)-1H-pyrazol-5-yl]methanol (Preparation 9dl) as the appropriate alcohol, Example 84 was obtained. HRMS calculated for C43H43ClF4N6O5S: 866.2640; found 434.1385 (M+2H).

Example 85 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-pentyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (1-pentyl-1H-pyrazol-5-yl)methanol (Preparation 9dm) as the appropriate alcohol, Example 85 was obtained. HRMS calculated for C44H48ClFN6O5S: 826.3079; found 827.3206 (M+H).

Example 86 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(3-methoxypropyl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [1-(3-methoxypropyl)-1H-pyrazol-5-yl]methanol (Preparation 9dq) as the appropriate alcohol, Example 86 was obtained. HRMS calculated for C43H46ClFN6O6S: 828.2872; found 415.1505 (M+2H).

Example 87 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-({1-[2-(dimethylamino)ethyl]-1H-pyrazol-5-yl}methoxy)phenyl]propanoic Acid

Using General Procedure (Ia) and {1-[2-(dimethylamino)ethyl]-1H-pyrazol-5-yl}methanol (Preparation 9dj) as the appropriate alcohol, Example 87 was obtained. HRMS calculated for C43H47ClFN7O5S: 827.3032; found 414.6592 (M+2H).

Example 88 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(2-methoxyethyl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [1-(2-methoxyethyl)-1H-pyrazol-5-yl]methanol (Preparation 9dp) as the appropriate alcohol, Example 88 was obtained. HRMS calculated for C42H44ClFN6O6S: 814.2716; found 408.1423 (M+2H).

Example 89 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(2-ethoxyethyl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [1-(2-ethoxyethyl)-1H-pyrazol-5-yl]methanol (Preparation 9dr) as the appropriate alcohol, Example 89 was obtained. HRMS calculated for C43H46ClFN6O6S: 828.2872; found 415.1510 (M+2H).

Example 90 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-({1-[2-(2-methoxyethoxy)ethyl]-1H-pyrazol-5-yl}methoxy)phenyl]propanoic Acid

Using General Procedure (Ia) and 11-[2-(2-methoxyethoxy)ethyl]-1H-pyrazol-5-yl]methanol (Preparation 9ds) as the appropriate alcohol, Example 90 was obtained.

HRMS calculated for C44H48ClFN6O7S: 858.2978; found 430.1571 (M+2H).

Example 91 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrazin-2-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (Ia) and pyrazin-2-ylmethanol as the appropriate alcohol, Example 91 was obtained. HRMS calculated for C40H38ClFN6O5S: 768.2297; found 769.2422 (M+H).

Example 92 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-methyl-1H-imidazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (1-methyl-1H-imidazol-5-yl)methanol as the appropriate alcohol, Example 92 was obtained. HRMS calculated for C40H40ClFN6O5S: 770.2453; found 771.2523 (M+H).

Example 93 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrimidin-5-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (Ia) and pyrimidin-5-ylmethanol as the appropriate alcohol, Example 93 was obtained. HRMS calculated for C40H38ClFN6O5S: 768.2297; found 769.2379 (M+H).

Example 94 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-phenyl-1H-1,2,3-triazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (1-phenyl-1H-1,2,3-triazol-5-yl)methanol (Preparation 9ee) as the appropriate alcohol, Example 94 was obtained. HRMS calculated for C44H41ClFN7O5S: 833.2562; found 834.2620 (M+H).

Example 95 (2R)-3-{2-[(1-butyl-1H-1,2,3-triazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (Ia) and (1-butyl-1H-1,2,3-triazol-5-yl)methanol (Preparation 9ec) as the appropriate alcohol, Example 95 was obtained. HRMS calculated for C42H45ClFN7O5S: 813.2875; found 814.2964 (M+H).

Example 96 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(3-methoxypropyl)-1H-1,2,3-triazol-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [1-(3-methoxypropyl)-1H-1,2,3-triazol-5-yl]methanol (Preparation 9ed) as the appropriate alcohol, Example 96 was obtained. HRMS calculated for C42H45ClFN7O6S: 829.2825; found 830.2876 (M+H).

Example 97 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(2-methoxyethyl)-1H-1,2,3-triazol-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [1-(2-methoxyethyl)-1H-1,2,3-triazol-5-yl]methanol (Preparation 9ef) as the appropriate alcohol, Example 97 was obtained. HRMS calculated for C41H43ClFN7O6S: 815.2668; found 408.6427 (M+2H).

Example 98 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(1,3-oxazol-4-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (Ia) and oxazol-4-ylmethanol as the appropriate alcohol, Example 98 was obtained. HRMS calculated for C39H37ClFN5O6S: 757.2137; found 758.2245 (M+H).

Example 99 (2R)-3-{2-[(5-bromo-2-methoxypyrimidin-4-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (Ia) and (5-bromo-2-methoxy-pyrimidin-4-yl)methanol (Preparation 9cb) as the appropriate alcohol, Example 99 was obtained. HRMS calculated for C41H39BrClFN6O6S: 876.1508; found 439.0864 (M+2H).

Example 100 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-methoxy-5-(thiophen-3-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and [2-methoxy-5-(3-thienyl)pyrimidin-4-yl]methanol (Preparation 9cc) as the appropriate alcohol, Example 100 was obtained. HRMS calculated for C45H42ClFN6O6S2: 880.2280; found 441.1229 (M+2H).

Example 101 (2R)-3-{2-[(5-bromopyrimidin-4-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (Ia) and (5-bromopyrimidin-4-yl)methanol (Preparation 9ca) as the appropriate alcohol, Example 101 was obtained. HRMS calculated for C40H37BrClFN6O5S: 846.1402; found 424.0775 (M+2H).

Example 102 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(4-methyl-4H-1,2,4-triazol-3-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and (4-methyl-4H-1,2,4-triazol-3-yl)methanol as the appropriate alcohol, Example 102 was obtained. HRMS calculated for C39H39ClFN7O5S: 771.2406; found 772.2411 (M+H).

Example 103 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy[phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(2-fluoroethoxy)phenyl]propanoic Acid

Using General Procedure (Ia) and 2-fluoroethanol as the appropriate alcohol, Example 103 was obtained. HRMS calculated for C37H37ClF2N4O5S: 722.2141; found 723.2244 (M+H).

Example 104 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy[phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(2-methoxyethoxy)phenyl]propanoic Acid

Using General Procedure (Ia) and 2-methoxyethanol as the appropriate alcohol, Example 104 was obtained. HRMS calculated for C38H40ClFN4O6S: 734.2341; found 735.2455 (M+H).

Example 105 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[2-(2-methoxyethoxy)ethoxy]phenyl}propanoic Acid

Using General Procedure (Ia) and 2-(2-methoxyethoxy)ethanol as the appropriate alcohol, Example 105 was obtained. HRMS calculated for C40H44ClFN4O7S: 778.2603; found 390.1362 (M+2H).

Example 106 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{2-[2-(2-methoxyethoxy)ethoxy]ethoxy}phenyl)propanoic Acid

Using General Procedure (Ia) and 2-[2-(2-methoxyethoxy)ethoxy]ethanol as the appropriate alcohol, Example 106 was obtained. HRMS calculated for C42H48ClFN4O8S: 822.2865; found 412.1520 (M+2H).

Example 107 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(4-methoxyphenyl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ib) and (4-methoxyphenyl)boronic acid as the appropriate boronic acid derivative, Example 107 was obtained. HRMS calculated for C47H44ClFN6O6S: 874.2716; found 438.1407 (M+2H).

Example 108 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(6-methylpyridin-3-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ib) and (6-methyl-3-pyridyl)boronic acid as the appropriate boronic acid derivative, Example 108 was obtained. HRMS calculated for C46H43ClFN7O5S: 859.2719; found 430.6436 (M+2H).

Example 109 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-({2-[6-(trifluoromethyl)pyridin-3-yl]pyrimidin-4-yl}methoxy)phenyl]propanoic Acid

Using General Procedure (Ib) and [6-(trifluoromethyl)-3-pyridyl]boronic acid as the appropriate boronic acid derivative, Example 109 was obtained. HRMS calculated for C46H40ClF4N7O5S: 913.2436; found 914.2521 (M+H).

Example 110 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(6-chloropyridin-3-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ib) and (6-chloro-3-pyridyl)boronic acid as the appropriate boronic acid derivative, Example 110 was obtained. HRMS calculated for C45H40Cl2FN7O5S: 879.2173; found 440.6161 (M+2H).

Example 111 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy[phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(6-methoxypyridin-3-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ib) and (6-methoxy-3-pyridyl)boronic acid as the appropriate boronic acid derivative, Example 111 was obtained. HRMS calculated for C46H43ClFN7O6S: 875.2668; found 438.6403 (M+2H).

Example 112 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(3-methoxyphenyl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ib) and (3-methoxyphenyl)boronic acid as the appropriate boronic acid derivative, Example 112 was obtained. HRMS calculated for C47H44ClFN6O6S: 874.2716; found 875.2836 (M+H).

Example 113 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methylphenyl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ib) and o-tolylboronic acid as the appropriate boronic acid derivative, Example 113 was obtained. HRMS calculated for C47H44ClFN6O5S: 858.2766; found 430.1464 (M+2H).

Example 114 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-fluorophenyl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ib) and (2-fluorophenyl)boronic acid as the appropriate boronic acid derivative, Example 114 was obtained. HRMS calculated for C46H41ClF2N6O5S: 862.2516; found 432.1342 (M+2H).

Example 115 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-ethoxyphenyl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ib) and (2-ethoxyphenyl)boronic acid as the appropriate boronic acid derivative, Example 115 was obtained. HRMS calculated for C39H38ClFN6O7S: 788.2195; found 395.1179 (M+2H).

Example 116 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methylpyridin-3-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ib) and (2-methyl-3-pyridyl)boronic acid as the appropriate boronic acid derivative, Example 116 was obtained. HRMS calculated for C46H43ClFN7O5S: 859.2719; found 430.6429 (M+2H).

Example 117 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(furan-2-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ib) and 2-furylboronic acid as the appropriate boronic acid derivative, Example 117 was obtained. HRMS calculated for C44H40ClFN6O6S: 834.2403; found 418.1278 (M+2H).

Example 118 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methylpyridin-4-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ib) and (2-methyl-4-pyridyl)boronic acid as the appropriate boronic acid derivative, Example 118 was obtained. HRMS calculated for C46H43ClFN7O5S: 859.2719; found 430.6409 (M+2H).

Example 119 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy[phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-chloropyridin-4-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ib) and (2-chloro-4-pyridyl)boronic acid as the appropriate boronic acid derivative, Example 119 was obtained. HRMS calculated for C45H40Cl2FN7O5S: 879.2173; found 440.6186 (M+2H).

Example 120 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(3-methylpyridin-4-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ib) and (3-methyl-4-pyridyl)boronic acid as the appropriate boronic acid derivative, Example 120 was obtained. HRMS calculated for C46H43ClFN7O5S: 859.2719; found 860.2808 (M+H).

Example 121 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methylthiophen-3-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ib) and (2-methyl-3-thienyl)boronic acid as the appropriate boronic acid derivative, Example 121 was obtained. HRMS calculated for C45H42ClFN6O5S2: 864.2331; found 433.1239 (M+2H).

Example 122 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(5-methylpyridin-3-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ib) and (5-methyl-3-pyridyl)boronic acid as the appropriate boronic acid derivative, Example 122 was obtained. HRMS calculated for C46H43ClFN7O5S: 859.2719; found 430.6450 (M+2H).

Example 123 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy[phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(4-methylpyridin-3-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ib) and (4-methyl-3-pyridyl)boronic acid as the appropriate boronic acid derivative, Example 123 was obtained. HRMS calculated for C46H43ClFN7O5S: 859.2719; found 430.6434 (M+2H).

Example 124 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(4-methylthiophen-3-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Ib) and (4-methyl-3-thienyl)boronic acid as the appropriate boronic acid derivative, Example 124 was obtained. HRMS calculated for C45H42ClFN6O5S2: 864.2331; found 433.1256 (M+2H).

Example 125 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(1H-pyrazol-5-ylmethoxy)phenyl]propanoic Acid Step A

1.058 g ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d[pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (Preparation 8a) (1.5 mmol), 982 mg [1-(4-methoxybenzyl)-1H-pyrazol-5-yl]methanol (Preparation 9dk) (4.5 mmol) and 1.18 g PPh3 (4.5 mmol) were dissolved in 30 mL dry toluene, then 1.036 g ditertbutyl azodicarboxylate (4.5 mmol) was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure, and the crude intermediate was purified via flash chromatography using dichloromethane and methanol as eluents.

Step B

226 mg (0.25 mmol) from the obtained intermediate was dissolved in 13 mL TFA and it was stirred at 100° C. for 1 hour. The volatiles were evaporated under reduced pressure, then the residue was diluted with DCM, washed with saturated aqueous NaHCO3 solution. The organic layer was dried over Na2SO4, filtered and concentrated under reduced pressure.

Step C

The obtained crude intermediate was dissolved in 6 mL dioxane-water 1:1 and 105 mg LiOH×H2O (2.5 mmol) was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM, dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 5 mM aqueous NH4HCO3 solution and MeCN as eluents to give Example 125. HRMS calculated for C39H38ClFN6O5S: 756.2297; found 757.2303 (M+H).

General Procedure (IIa) Step A

1 eq. ethyl (2R)-2-[(5Sa)-5-[3-chloro-4-(2-dimethylaminoethyloxy)-2-methyl-phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (Preparation 8b), 2 eq. of the appropriate alcohol and 2 eq. triphenyl phosphine were dissolved in dry toluene (0.2 M for the phenol), then 2 eq. ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using ethyl acetate and methanol as eluents.

Step B

The obtained intermediate was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via preparative reversed phase chromatography using 5 mM aqueous NH4HCO3 solution and MeCN as eluents.

General Procedure (IIb) Step A

1 eq. ethyl (2R)-2-[(5Sa)-5-[3-chloro-4-(2-dimethylaminoethyloxy)-2-methyl-phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(2-methylsulfanylpyrimidin-4-yl)methoxy]phenyl[propanoate (Preparation 10b), 3.0 eq. of the appropriate boronic acid derivative and 3.0 eq. copper(I) thiophenecarboxylate were dissolved in dry THF (0.1 M for Preparation 10b), then 0.15 eq. Pd(PPh3)4 was added. The mixture was stirred at 70° C. under nitrogen until no further conversion was observed. Then it was concentrated under reduced pressure and the crude intermediate was purified via flash chromatography using dichloromethane and methanol as eluents.

Step B

The obtained intermediate was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq LiOH×H2O was added. The mixture was stirred at until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 5 mM aqueous NH4HCO3 solution and MeCN as eluents.

Example 126 (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2R)-tetrahydrofuran-2-ylmethoxy]phenyl}propanoic Acid

Using General Procedure (IIa) and [(2R)-tetrahydrofuran-2-yl]methanol as the appropriate alcohol, Example 126 was obtained. HRMS calculated for C37H37ClFN3O6S: 705.2076; found 706.2163 (M+H).

Example 127 (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(2,2,2-trifluoroethoxy)phenyl]propanoic Acid Step A

195 mg ethyl (2R)-2-[(5Sa)-5-[3-chloro-4-(2-dimethylaminoethyloxy)-2-methyl-phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (Preparation 8b) (0.3 mmol) and 138 mg K2CO3 (1.0 mmol) were dissolved in 2 mL DMF, then 232 mg 2,2,2-trifluoroethyl trifluoromethanesulfonate (1.0 mmol) was added. The mixture was stirred at room temperature under nitrogen until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure.

Step B

The obtained intermediate was dissolved in 8 mL dioxane-water 1:1 and 150 mg LiOH×H2O (3.57 mmol) was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 5 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Example 127. HRMS calculated for C34H30ClF4N3O5S: 703.1531; found 704.1634 (M+H).

Example 128 (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(pyridin-4-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (IIa) and [2-(4-pyridyl)pyrimidin-4-yl]methanol (Preparation 9bs) as the appropriate alcohol, Example 128 was obtained. HRMS calculated for C42H36ClFN6O5S: 790.2140; found 396.1147 (M+2H).

Example 129 (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(morpholin-4-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (IIa) and (2-(morpholin-4-yl)pyrimidin-4-yl)methanol (Preparation 9ar) as the appropriate alcohol, Example 129 was obtained. HRMS calculated for C41H40ClFN6O6S: 798.2403; found 799.2458 (M+H).

Example 130 (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-ethoxypyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (IIa) and (2-ethoxypyrimidin-4-yl)methanol (Preparation 9ad) as the appropriate alcohol, Example 130 was obtained. HRMS calculated for C39H37ClFN5O6S: 757.2137; found 758.2212 (M+H).

Example 131 (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2,2,2-trifluoroethoxy)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (IIa) and [2-(2,2,2-trifluoroethoxy)pyrimidin-4-yl]methanol (Preparation 9ai) as the appropriate alcohol, Example 131 was obtained. HRMS calculated for C39H34ClF4N5O6S: 811.1854; found 812.1956 (M+H).

Example 132 (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(2,2,2-trifluoroethyl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (IIa) and [1(2,2,2-trifluoroethyl)-1H-pyrazol-5-yl]methanol (Preparation 9du) as the appropriate alcohol, Example 132 was obtained. HRMS calculated for C38H34ClF4N5O5S: 783.1905; found 784.1969 (M+H).

Example 133 (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (IIa) and (1-butyl-1H-pyrazol-5-yl)methanol (Preparation 9dd) as the appropriate alcohol, Example 133 was obtained. HRMS calculated for C40H41ClFN5O5S: 757.2501; found 758.2596 (M+H).

Example 134 (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrazin-2-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (IIa) and pyrazin-2-ylmethanol as the appropriate alcohol, Example 134 was obtained. HRMS calculated for C37H33ClFN5O5S: 713.1875; found 714.1931 (M+H).

Example 135 (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (IIb) and (2-methoxyphenyl)boronic acid as the appropriate boronic acid, Example 135 was obtained. HRMS calculated for C44H39ClFN5O6S: 819.2294; found 410.6206 (M+2H).

Example 136 (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methylpyridin-4-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (IIb) and (2-methyl-4-pyridyl)boronic acid as the appropriate boronic acid, Example 136 was obtained. HRMS calculated for C43H38ClFN6O5S: 804.2297; found 403.1234 (M+2H).

Example 137 (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(3-methylpyridin-4-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (IIb) and (3-methyl-4-pyridyl)boronic acid as the appropriate boronic acid, Example 137 was obtained. HRMS calculated for C43H38ClFN6O5S: 804.2297; found 403.1237 (M+2H).

Example 138 (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(4-methylpyridin-3-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (IIb) and (4-methyl-3-pyridyl)boronic acid as the appropriate boronic acid, Example 138 was obtained. HRMS calculated for C43H38ClFN6O5S: 804.2297; found 403.1220 (M+2H).

General Procedure (IIIa)

1.0 eq. of ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-(pyrazin-2-ylmethoxy)phenyl[propanoate (Preparation 6b), 2.0 eq. of the appropriate alcohol and 2.0 eq. triphenylphosphine were dissolved in dry toluene (0.2 M for the phenol), then 2 eq.

ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using EtOAc and MeOH as eluents. The obtained intermediate was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

Example 139 (2R)-2-{[(5Sa)-5-(3-chloro-2-methyl-4-1 [(3R)-1-methylpyrrolidin-3-yl]methoxy}phenyl)-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrazin-2-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (Ma) and [(3R)-1-methylpyrrolidin-3-yl]methanol as the appropriate alcohol, Example 139 was obtained. HRMS calculated for C39H35ClFN5O5S: 739.2031; found 740.2136 (M+H).

Example 140 (2R)-2-{[(5Sa)-5-(3-chloro-2-methyl-4-1 [(3S)-1-methylpyrrolidin-3-yl]methoxy}phenyl)-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrazin-2-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (Ma) and [(3S)-1-methylpyrrolidin-3-yl]methanol as the appropriate alcohol, Example 140 was obtained. HRMS calculated for C39H35ClFN5O5S: 739.2031; found 740.2095 (M+H).

Example 141 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[((3S or R)-1-methylpiperidin-3-yl)oxylphenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrazin-2-ylmethoxy)phenyl]propanoic Acid and Example 142 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[((3R or S)-1-methylpiperidin-3-yl)oxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrazin-2-ylmethoxy)phenyl]propanoic Acid and Example 143 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[(1-methylpyrrolidin-2-yl)methoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrazin-2-ylmethoxy)phenyl]propanoic acid (mixture of diastereoisomers)

0.470 g ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-(pyrazin-2-ylmethoxy)phenyl[propanoate (Preparation 6b) (0.7 mmol), 0.330 g 1-methylpiperidin-3-ol (2.0 mmol), and 0.524 g triphenyl phosphine (2.0 mmol) were dissolved in 15 mL dry toluene, then 0.461 g ditertbutyl azodicarboxylate (2.0 mmol) was added. The mixture was stirred at 50° C. under nitrogen. During the reaction rearrangement of the methylpiperidine moiety was also observed. When no further conversion was observed, the volatiles were evaporated under reduced pressure, and the constitutional isomers were separated via flash chromatography using DCM and MeOH as eluents. The mixture of compounds eluting earlier were the precursors of Example 141 and 142, while the mixture of compounds eluting later were the precursors of Example 143. The obtained precursor derivatives were separately dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq LiOH×H2O was added. The mixtures were stirred at room temperature until no further conversion was observed. Then they were individually diluted with brine, neutralized with 2 M HCl, extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified separately via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Example 141 [HRMS calculated for C39H35ClFN5O5S: 739.2031; found 740.2119 (M+H)], Example 142 [HRMS calculated for C39H35ClFN5O5S: 739.2031; found 740.2088 (M+H)], and Example 143 [HRMS calculated for C39H35ClFN5O5S: 739.2031; found 740.2101 and 740.2078 (M+H)].

Example 144 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[(1-methylazepan-3-yl)methoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrazin-2-ylmethoxy)phenyl[propanoic acid (mixture of diastereoisomers)

Using General Procedure (Ma) and 2-(1-methyl-2-piperidyl)ethanol as the appropriate alcohol in the course of the reaction the ring-expansion of the piperidyl moiety was observed, thus Example 144 was obtained. HRMS calculated for C4iH39ClFN5O5S: 767.2344; found 768.2399 and 768.2398 (M+H).

Example 145 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[(1-methylpyrrolidin-3-yl)methoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrazin-2-ylmethoxy)phenyl]propanoic acid (mixture of diastereoisomers)

Using General Procedure (Ma) and (1-methylpyrrolidin-3-yl)methanol as the appropriate alcohol, Example 145 was obtained. HRMS calculated for C39H35ClFN5O5S: 739.2031; found 740.2081 (M+H).

Example 146 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[3-(1-methylpyrrolidin-2-yl)propoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrazin-2-ylmethoxy)phenyl]propanoic acid (mixture of diastereoisomers)

Using General Procedure (Ma) and 2-(1-methyl-3-piperidyl)ethanol as the appropriate alcohol in the course of the reaction the ring-contraction of the piperidyl moiety was observed, thus Example 146 was obtained. HRMS calculated for C41H39ClFN5O5S: 767.2344; found 768.2454 (M+H).

Example 147 (2R)-2-{[(5Sa)-5-[3-chloro-4-[3-(dimethylamino)propoxy]-2-methylphenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrazin-2-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (Ma) and 3-(dimethylamino)propan-1-ol as the appropriate alcohol, Example 147 was obtained. HRMS calculated for C38H35ClFN5O5S: 727.2031; found 728.2085 (M+H).

Example 148 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(morpholin-4-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrazin-2-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (Ma) and 2-(morpholin-4-yl)ethanol as the appropriate alcohol, Example 148 was obtained. HRMS calculated for C39H35ClFN5O6S: 755.1981; found 756.2052 (M+H).

General Procedure (IVa) Step A

1 eq. ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluoro-2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (Preparation 8c), 2 eq. of the appropriate alcohol and 2 eq. triphenyl phosphine were dissolved in dry toluene (0.2 M for the phenol), then 2 eq. ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using ethyl acetate and methanol as eluents.

Step B

The obtained intermediate was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

Example 149 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (IVa) and methanol as the appropriate alcohol, Example 149 was obtained. HRMS calculated for C34H34ClFN4O6S: 680.1872; found 681.1947 (M+H).

Example 150 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2R)-tetrahydrofuran-2-ylmethoxy]phenyl}propanoic Acid

Using General Procedure (IVa) and [(2R)-tetrahydrofuran-2-yl]methanol as the appropriate alcohol, Example 150 was obtained. HRMS calculated for C38H40ClFN4O7S: 750.2290; found 751.2375 (M+H).

Example 151 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[2-(methylamino)-2-oxoethoxy]phenyl}propanoic Acid

Using General Procedure (IVa) and 2-hydroxy-N-methyl-acetamide as the appropriate alcohol, Example 151 was obtained. HRMS calculated for C36H37ClFN5O7S: 737.2086; found 738.2195 (M+H).

Example 152 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[2-(cyclopentylamino)-2-oxoethoxy]phenyl}propanoic Acid

Using General Procedure (IVa) and N-cyclopentyl-2-hydroxy-acetamide as the appropriate alcohol, Example 152 was obtained. HRMS calculated for C40H43ClFN5O7S: 791.2556; found 792.2658 (M+H).

Example 153 (2R)-3-{2-[2-(benzylamino)-2-oxoethoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (IVa) and N-benzyl-2-hydroxy-acetamide as the appropriate alcohol, Example 153 was obtained. HRMS calculated for C42H41ClFN5O7S: 813.2399; found 814.2492 (M+H).

Example 154 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[2-oxo-2-(propylamino)ethoxy]phenyl}propanoic Acid

Using General Procedure (IVa) and 2-hydroxy-N-propyl-acetamide as the appropriate alcohol, Example 154 was obtained. HRMS calculated for C38H41ClFN5O7S: 765.2399; found 766.2459 (M+H).

Example 155 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{2-oxo-2-[(2-phenylethyl)amino]ethoxy}phenyl)propanoic Acid

Using General Procedure (IVa) and 2-hydroxy-N-2-phenylethyl-acetamide as the appropriate alcohol, Example 155 was obtained. HRMS calculated for C43H43ClFN5O7S: 827.2556; found 828.2580 (M+H).

Example 156 (2R)-3-{2-[2-(butylamino)-2-oxoethoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (IVa) and N-butyl-2-hydroxy-acetamide as the appropriate alcohol, Example 156 was obtained. HRMS calculated for C39H43ClFN5O7S: 779.2556; found 780.2614 (M+H).

Example 157 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{2-[(2-methoxyethyl)amino]-2-oxoethoxy}phenyl)propanoic Acid

Using General Procedure (IVa) and 2-hydroxy-N-(2-methoxyethyl)acetamide as the appropriate alcohol, Example 157 was obtained. HRMS calculated for C38H41ClFN5O8S: 781.2348; found 782.2478 (M+H).

Example 158 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(2,2,2-trifluoroethoxy)phenyl]propanoic Acid Step A

209 mg ethyl (2R)-2-[(5Sa)-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (Preparation 8c) (0.3 mmol) and 138 mg K2CO3 (1.0 mmol) were dissolved in 2 mL DMF, then 232 mg 2,2,2-trifluoroethyl trifluoromethanesulfonate (1.0 mmol) was added. The mixture was stirred at room temperature under nitrogen until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure.

Step B

The obtained intermediate was dissolved in 8 mL dioxane-water 1:1 and 150 mg LiOH×H2O (3.57 mmol) was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 5 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Example 158. HRMS calculated for C35H33ClF4N4O6S: 748.1745; found 749.1819 (M+H).

Example 159 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-1 [4-(trifluoromethyl)pyridin-2-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (IVa) and [4-(trifluoromethyl)-2-pyridyl]methanol as the appropriate alcohol, Example 159 was obtained. HRMS calculated for C40H36ClF4N5O6S: 825.2011; found 413.6085 (M+2H).

Example 160 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-methoxy-6-methylpyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (IVa) and (2-methoxy-6-methyl-pyrimidin-4-yl)methanol (Preparation 9cf) as the appropriate alcohol, Example 160 was obtained. HRMS calculated for C40H40ClFN6O7S: 802.2352; found 402.1241 (M+2H).

Example 161 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(6-methylpyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (IVa) and (6-methylpyrimidin-4-yl)methanol as the appropriate alcohol, Example 161 was obtained. HRMS calculated for C39H38ClFN6O6S: 772.2246; found 387.1188 (M+2H).

Example 162 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(6-methoxypyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (IVa) and (6-methoxypyrimidin-4-yl)methanol (Preparation 9ce) as the appropriate alcohol, Example 162 was obtained. HRMS calculated for C39H38ClFN6O7S: 788.2195; found 395.1165 (M+2H).

Example 163 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(5-fluoropyridin-2-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (IVa) and (5-fluoro-2-pyridyl)methanol as the appropriate alcohol, Example 163 was obtained. HRMS calculated for C39H36ClF2N5O6S: 775.2043; found 776.2161 (M+H).

Example 164 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[6-(trifluoromethyl)pyridin-2-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (IVa) and [6-(trifluoromethyl)-2-pyridyl]methanol as the appropriate alcohol, Example 164 was obtained. HRMS calculated for C40H36ClF4N5O6S: 825.2011; found 826.2100 (M+H).

Example 165 (2R)-2-{[(5Ra)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyridin-2-ylmethoxy)phenyl]propanoic Acid and Example 166 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyridin-2-ylmethoxy)phenyl]propanoic Acid Step A

591 mg 4-chloro-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-iodo-thieno[2,3-d]pyrimidine (Preparation 13) (1.05 mmol), 915 mg ethyl (2R)-2-hydroxy-3-[2-(2-pyridylmethoxy)phenyl]propanoate (Preparation 3bn) (1.045 mmol) and 977 mg Cs2CO3 (3.0 mmol) were placed in a flask. 10 mL tert-butanol was added and the mixture was stirred at 60° C. until no further conversion was observed. Then it was diluted with brine and extracted with dichloromethane. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 5 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain ethyl (2R)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-(2-pyridylmethoxy)phenyl]propanoate as a mixture of diastereoisomers. MS: (M+H)=828.0.

Step B

518 mg ethyl (2R)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-(2-pyridylmethoxy)phenyl]propanoate (0.625 mmol) and 565 mg 2-(5-fluoro-2-furyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (2.66 mmol) were dissolved in 5 ml 1,4-dioxane, then 407 mg Cs2CO3 (1.25 mmol) dissolved in 1 mL water was added. Then 46 mg PdCl2×dppf (0.0625 mmol) was added. The mixture was heated at 100° C. via microwave irradiation until no further conversion was observed. Then it was diluted with brine, extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 5 mM aqueous NH4HCO3 solution and MeCN as eluents.

Step C

The obtained intermediate was dissolved in 10 mL dioxane-water 1:1 (10 mL/mmol) and 200 mg LiOH×H2O (4.77 mmol) was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM, dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 5 mM aqueous

NH4HCO3 solution and MeCN as eluents. The diastereoisomer eluting earlier was collected as Example 165. HRMS calculated for C39H37ClFN5O6S: 757.2137; found 379.6156 (M+2H). The diastereoisomer eluting later was collected as Example 166.

HRMS calculated for C39H37ClFN5O6S: 757.2137; found 379.6159 (M+2H).

Example 167 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(trifluoromethyl)pyridin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (IVa) and [2-(trifluoromethyl)-4-pyridyl]methanol as the appropriate alcohol, Example 167 was obtained. HRMS calculated for C40H36ClF4N5O6S: 825.2011; found 826.2124 (M+H).

Example 168 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-methoxypyridin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (IVa) and (2-methoxy-4-pyridyl)methanol as the appropriate alcohol, Example 168 was obtained. HRMS calculated for C40H39ClFN5O7S: 787.2243; found 394.6210 (M+2H).

Example 169 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(trifluoromethyl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (IVa) and [2-(trifluoromethyl)pyrimidin-4-yl]methanol (Preparation 9bj) as the appropriate alcohol, Example 169 was obtained. HRMS calculated for C39H35ClF4N6O6S: 826.1963; found 827.2059 (M+H).

Example 170 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-cyclopropylpyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (IVa) and (2-cyclopropylpyrimidin-4-yl)methanol (Preparation 9be) as the appropriate alcohol, Example 170 was obtained. HRMS calculated for C41H40ClFN6O6S: 798.2403; found 400.1265 (M+2H).

Example 171 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(thiophen-2-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (IVa) and [2-(2-thienyl)pyrimidin-4-yl]methanol (Preparation 9bv) as the appropriate alcohol, Example 171 was obtained. HRMS calculated for C42H38ClFN6O6S2: 840.1967; found 421.1070 (M+2H).

Example 172 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(pyridin-4-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (IVa) and [2-(4-pyridyl)pyrimidin-4-yl]methanol (Preparation 9bs) as the appropriate alcohol, Example 172 was obtained. HRMS calculated for C43H39ClFN7O6S: 835.2355; found 418.6246 (M+2H).

Example 173 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(thiophen-3-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (IVa) and [2-(3-thienyl)pyrimidin-4-yl]methanol (Preparation 9bu) as the appropriate alcohol, Example 173 was obtained. HRMS calculated for C42H38ClFN6O6S2: 840.1967; found 841.2059 (M+H).

Example 174 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxyethyl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (IVa) and [2-(2-methoxyethyl)pyrimidin-4-yl]methanol (Preparation 9bl) as the appropriate alcohol, Example 174 was obtained. HRMS calculated for C41H42ClFN6O7S: 816.2508; found 409.1335 (M+2H).

Example 175 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(morpholin-4-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (IVa) and (2-(morpholin-4-yl)pyrimidin-4-yl)methanol (Preparation 9ar) as the appropriate alcohol, Example 175 was obtained. HRMS calculated for C42H43ClFN7O7S: 843.2617; found 422.6360 (M+2H).

Example 176 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-methoxypyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (IVa) and (2-methoxypyrimidin-4-yl)methanol as the appropriate alcohol, Example 176 was obtained. HRMS calculated for C39H38N6O7FSCl: 788.2195; found 789.2289 (M+H).

Example 177 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-ethoxypyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (IVa) and (2-ethoxypyrimidin-4-yl)methanol (Preparation 9ad) as the appropriate alcohol, Example 177 was obtained. HRMS calculated for C40H40ClFN6O7S: 802.2352; found 402.1255 (M+2H).

Example 178 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2,2,2-trifluoroethoxy)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (IVa) and [2-(2,2,2-trifluoroethoxy)pyrimidin-4-yl]methanol (Preparation 9ai) as the appropriate alcohol, Example 178 was obtained. HRMS calculated for C40H37ClF4N6O7S: 856.2069; found 857.2110 (M+H).

Example 179 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrimidin-4-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (IVa) and pyrimidin-4-ylmethanol as the appropriate alcohol, Example 179 was obtained. HRMS calculated for C38H36ClFN6O6S: 758.2090; found 759.2166 (M+H).

Example 180 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-methyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (IVa) and (1-methyl-1H-pyrazol-5-yl)methanol as the appropriate alcohol, Example 180 was obtained. HRMS calculated for C38H38ClFN6O6S: 760.2246; found 761.2343 (M+H).

Example 181 (2R)-3-{2-[(1-tert-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (IVa) and (1-tert-butyl-1H-pyrazol-5-yl)methanol (Preparation 9dt) as the appropriate alcohol, Example 181 was obtained. HRMS calculated for C41H44ClFN6O6S: 802.2716; found 402.1422 (M+2H).

Example 182 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(propan-2-yl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (IVa) and [1-(propan-2-yl)-1H-pyrazol-5-yl]methanol (Preparation 9dc) as the appropriate alcohol, Example 182 was obtained. HRMS calculated for C40H42ClFN6O6S: 788.2559; found 789.2663 (M+H).

Example 183 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-cyclopentyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (IVa) and (1-cyclopentyl-1H-pyrazol-5-yl)methanol (Preparation 9dg) as the appropriate alcohol, Example 183 was obtained. HRMS calculated for C42H44ClFN6O6S: 814.2716; found 815.2796 (M+H).

Example 184 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-ethyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (IVa) and (1-ethyl-1H-pyrazol-5-yl)methanol (Preparation 9da) as the appropriate alcohol, Example 184 was obtained. HRMS calculated for C39H40ClFN6O6S: 774.2403; found 388.1265 (M+2H).

Example 185 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(2,2,2-trifluoroethyl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (IVa) and [1-(2,2,2-trifluoroethyl)-1H-pyrazol-5-yl]methanol (Preparation 9du) as the appropriate alcohol, Example 185 was obtained. HRMS calculated for C39H37ClF4N6O6S: 828.2120; found 415.1131 (M+2H).

Example 186 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(cyclopropylmethyl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (IVa) and [1-(cyclopropylmethyl)-1H-pyrazol-5-yl]methanol (Preparation 9df) as the appropriate alcohol, Example 186 was obtained. HRMS calculated for C41H42ClFN6O6S: 800.2559; found 401.1355 (M+2H).

Example 187 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-propyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (IVa) and (1-propyl-1H-pyrazol-5-yl)methanol (Preparation 9db) as the appropriate alcohol, Example 187 was obtained. HRMS calculated for C40H42ClFN6O6S: 788.2559; found 395.1357 (M+2H).

Example 188 (2R)-3-{2-R 1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (IVa) and (1-butyl-1H-pyrazol-5-yl)methanol (Preparation 9dd) as the appropriate alcohol, Example 188 was obtained. HRMS calculated for C41H44ClFN6O6S: 802.2716; found 402.1447 (M+2H).

Example 189 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrazin-2-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (IVa) and pyrazin-2-ylmethanol as the appropriate alcohol, Example 189 was obtained. HRMS calculated for C38H36ClFN6O6S: 758.2090; found 759.2159 (M+H).

Example 190 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrimidin-5-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (IVa) and pyrimidin-5-ylmethanol as the appropriate alcohol, Example 190 was obtained. HRMS calculated for C38H36ClFN6O6S: 758.2090; found 759.2198 (M+H).

Example 191 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(1,3-oxazol-4-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (IVa) and 1,3-oxazol-4-ylmethanol as the appropriate alcohol, Example 191 was obtained. HRMS calculated for C37H35ClFN5O7S: 747.1930; found 748.1970 (M+H).

Example 192 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy[phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[2-(dimethylamino)ethoxy]phenyl}propanoic Acid

Using General Procedure (IVa) and 2-(dimethylamino)ethanol as the appropriate alcohol Example 192 was obtained. HRMS calculated for C37H41ClFN5O6S: 737.2450; found 369.6277 (M+2H).

Example 193 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(2-hydroxyethoxy)phenyl]propanoic Acid

Using General Procedure (IVa) and ethylene glycol as the appropriate alcohol, Example 193 was obtained. HRMS calculated for C35H36ClFN4O7S: 710.1977; found 711.2037 (M+H).

Example 194 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(2-methoxyethoxy)phenyl]propanoic Acid

Using General Procedure (IVa) and 2-methoxyethanol as the appropriate alcohol, Example 194 was obtained. HRMS calculated for C36H38ClFN4O7S: 724.2134; found 725.2224 (M+H).

Example 195 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[2-(2-hydroxyethoxy)ethoxy]phenyl}propanoic Acid

Using General Procedure (IVa) and 2-(2-hydroxyethoxy)ethanol as the appropriate alcohol, Example 195 was obtained. HRMS calculated for C37H40ClFN4O8S: 754.2239; found 755.2279 (M+H).

Example 196 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy[phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[2-(2-methoxyethoxy)ethoxy]phenyl}propanoic Acid

Using General Procedure (IVa) and 2-(2-methoxyethoxy)ethanol as the appropriate alcohol, Example 196 was obtained. HRMS calculated for C38H42ClFN4O8S: 768.2396; found 769.2481 (M+H).

Example 197 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{2-[2-(2-methoxyethoxy)ethoxy]ethoxy}phenyl)propanoic Acid

Using General Procedure (IVa) and 2-[2-(2-methoxyethoxy)ethoxy]ethanol as the appropriate alcohol, Example 197 was obtained. HRMS calculated for C40H46ClFN4O9S: 812.2658; found 407.1384 (M+2H).

Example 198 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(3-methylpyridin-4-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid Step A

417 mg ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(5-fluoro-2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(2-methylsulfanylpyrimidin-4-yl)methoxy]phenyl]propanoate (Preparation 10c) (0.5 mmol), 205 mg (3-methyl-4-pyridyl)boronic acid (1.5 mmol) and 286 mg copper(I) thiophenecarboxylate (1.5 mmol) were dissolved in 5 mL dry THF, then 58 mg Pd(PPh3)4 (0.05 mmol) was added. The mixture was stirred at 70° C. under nitrogen until no further conversion was observed. Then it was concentrated under reduced pressure and the crude intermediate was purified via flash chromatography using DCM and MeOH as eluents.

Step B

The obtained intermediate was dissolved in 3 mL methanol and 150 mg NaOH (3.75 mmol) was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 5 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Example 198. HRMS calculated for C44H41ClFN7O6S: 849.2512; found 425.6338 (M+2H).

General Procedure (Va) Step A

1 eq. ethyl (2R)-2-[(5Sa)-5-[3-chloro-4-(2-dimethylaminoethyloxy)-2-methyl-phenyl]-6-(5-fluoro-2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (Preparation 8d), 2 eq. of the appropriate alcohol and 2 eq. triphenyl phosphine were dissolved in dry toluene (0.2 M for the phenol), then 2 eq. ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using ethyl acetate and methanol as eluents.

Step B

The obtained intermediate was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq. LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with dichloromethane. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

Example 199 (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (Va) and methanol as the appropriate alcohol, Example 199 was obtained. HRMS calculated for C31H29ClFN3O6S: 625.1450; found 626.1509 (M+H).

Example 200 (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(2,2,2-trifluoroethoxy)phenyl]propanoic Acid Step A

192 mg (2R)-2-[(5Sa)-5-[3-chloro-4-(2-dimethylaminoethyloxy)-2-methyl-phenyl]-6-(5-fluoro-2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (Preparation 8d) (0.3 mmol) and 138 mg K2CO3 (1.0 mmol) were dissolved in 2 mL DMF, then 232 mg 2,2,2-trifluoroethyl trifluoromethanesulfonate (1.0 mmol) was added. The mixture was stirred at room temperature under nitrogen until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM, dried over Na2SO4, filtered and concentrated under reduced pressure.

Step B

The obtained intermediate was dissolved in 8 mL dioxane-water 1:1 and 150 mg LiOH×H2O (3.57 mmol) was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 5 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Example 200. HRMS calculated for C32H28ClF4N3O6S: 693.1323; found 694.1382 (M+H).

Example 201 (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(trifluoromethyl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Va) and [2-(trifluoromethyl)pyrimidin-4-yl]methanol (Preparation 9bj) as the appropriate alcohol Example 201 was obtained. HRMS calculated for C36H30ClF4N5O6S: 771.1541; found 772.1604 (M+H).

Example 202 (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(morpholin-4-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Va) and (2-(morpholin-4-yl)pyrimidin-4-yl)methanol (Preparation 9ar) as the appropriate alcohol Example 202 was obtained. HRMS calculated for C39H38ClFN6O7S: 788.2195; found 395.1179 (M+2H).

Example 203 (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2,2,2-trifluoroethoxy)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Va) and [2-(2,2,2-trifluoroethoxy)pyrimidin-4-yl]methanol (Preparation 9ai) as the appropriate alcohol Example 203 was obtained. HRMS calculated for C37H32ClF4N5O7S: 801.1647; found 802.1706 (M+H).

Example 204 (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-ethyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Va) and (1-ethyl-1H-pyrazol-5-yl)methanol (Preparation 9da) as the appropriate alcohol Example 204 was obtained. HRMS calculated for C36H35ClFN5O6S: 719.1981; found 720.2064 (M+H).

Example 205 (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(2,2,2-trifluoroethyl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Va) and [1-(2,2,2-trifluoroethyl)-1H-pyrazol-5-yl]methanol (Preparation 9du) as the appropriate alcohol Example 205 was obtained. HRMS calculated for C36H32ClF4N5O6S: 773.1698; found 774.1771 (M+H).

Example 206 (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrazin-2-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (Va) and pyrazin-2-ylmethanol as the appropriate alcohol Example 206 was obtained. HRMS calculated for C35H31ClFN5O6S: 703.1668; found 704.1726 (M+H).

General Procedure (VIa) Step A

1 eq. ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (Preparation 8e), 2 eq. of the appropriate alcohol and 2 eq. triphenylphosphine were dissolved in dry toluene (0.2 M for the phenol), then 2 eq. ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. Then it was concentrated under reduced pressure and the crude intermediate was purified via flash chromatography using EtOAc and MeOH as eluents.

Step B

The obtained intermediate was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq. LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with dichloromethane. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

Example 207 (2R)-2-{[-[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-hydroxyphenyl)propanoic Acid

Ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (Preparation 8e) was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq. LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with dichloromethane. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Example 207. HRMS calculated for C33H33ClN4O6S: 648.1809; found 649.1862 (M+H).

Example 208 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1R)-1-(pyridin-4-yl)ethoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (/R)-1-(4-pyridyl)ethanol as the appropriate alcohol, Example 208 was obtained. HRMS calculated for C40H40ClN5O6S: 753.2388; found 377.6276 (M+2H).

Example 209 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (VIa) and methanol as the appropriate alcohol, Example 209 was obtained. HRMS calculated for C34H35ClN4O6S: 662.1966; found 663.2028 (M+H).

Example 210 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(propan-2-yloxy)phenyl]propanoic Acid

Using General Procedure (VIa) and 2-propanol as the appropriate alcohol, Example 210 was obtained. HRMS calculated for C36H39ClN4O6S: 690.2279; found 691.2344 (M+H).

Example 211 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2R)-tetrahydrofuran-2-ylmethoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and [(2R)-tetrahydrofuran-2-yl]methanol as the appropriate alcohol, Example 211 was obtained. HRMS calculated for C38H41ClN4O7S: 732.2384; found 733.2453 (M+H).

Example 212 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(cyclopentyloxy)phenyl]propanoic Acid

Using General Procedure (VIa) and cyclopentanol as the appropriate alcohol, Example 212 was obtained. HRMS calculated for C38H41ClN4O6S: 716.2435; found 717.2481 (M+H).

Example 213 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(5,6,7,8-tetrahydroquinolin-8-yloxy)phenyl]propanoic Acid

Using General Procedure (VIa) and 5,6,7,8-tetrahydroquinolin-8-ol as the appropriate alcohol, Example 213 was obtained as mixture of the diastereoisomers. HRMS calculated for C42H42ClN5O6S: 779.2544; found 390.6369 (M+2H) and 390.6355 (M+2H).

Example 214 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-methylpyrrolidin-3-yl)oxy]phenyl}propanoic Acid

Using General Procedure (VIa) and 1-methylpyrrolidin-3-ol as the appropriate alcohol, Example 214 was obtained as mixture of the diastereoisomers. HRMS calculated for C38H42ClN5O6S: 731.2544; found 366.6362 (M+2H) and 366.6354 (M+2H).

Example 215 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-ethoxyphenyl)propanoic Acid

Using General Procedure (VIa) and ethanol as the appropriate alcohol, Example 215 was obtained. HRMS calculated for C35H37ClN4O6S: 676.2122; found 677.2216 (M+H).

Example 216 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(prop-2-yn-1-yloxy)phenyl]propanoic Acid

Using General Procedure (VIa) and prop-2-yn-1-ol as the appropriate alcohol, Example 216 was obtained. HRMS calculated for C36H35ClN4O6S: 686.1966; found 687.2056 (M+H).

Example 217 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[2-(dimethylamino)-2-oxoethoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and 2-hydroxy-N,N-dimethyl-acetamide as the appropriate alcohol, Example 217 was obtained. HRMS calculated for C37H40ClN5O7S: 733.2337; found 734.2407 (M+H).

Example 218 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[2-(methylamino)-2-oxoethoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and 2-hydroxy-N-methyl-acetamide as the appropriate alcohol, Example 218 was obtained. HRMS calculated for C36H38ClN5O7S: 719.2180; found 720.2263 (M+H).

Example 219 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[2-oxo-2-(phenylamino)ethoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and 2-hydroxy-N-phenyl-acetamide as the appropriate alcohol, Example 219 was obtained. HRMS calculated for C41H40ClN5O7S: 781.2337; found 391.6225 (M+2H).

Example 220 (2R)-3-{2-[2-(butylamino)-2-oxoethoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (VIa) and N-butyl-2-hydroxy-acetamide as the appropriate alcohol, Example 220 was obtained. HRMS calculated for C39H44ClN5O7S: 761.2650; found 762.2703 (M+H).

Example 221 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(2,2,2-trifluoroethoxy)phenyl]propanoic Acid Step A

677 mg ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (Preparation 8e) (1 mmol) and 276 mg K2CO3 (2.0 mmol) were dissolved in 5 mL DMF, then 141 μL 2,2,2-trifluoroethyl trifluoromethanesulfonate (1.2 mmol) was added. The mixture was stirred at room temperature under nitrogen until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with dichloromethane, and the combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure.

Step B

The obtained intermediate was dissolved in 10 mL dioxane-water 1:1 and 420 mg LiOH×H2O (10.0 mmol) was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with dichloromethane, the combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Example 207. HRMS calculated for C35H34ClF3N4O6S: 730.1840; found 731.1875 (M+H).

Example 222 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(4-chloropyridin-2-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (4-chloro-2-pyridyl)methanol as the appropriate alcohol, Example 222 was obtained. HRMS calculated for C39H37Cl2N5O6S: 773.1842; found 387.6008 (M+2H).

Example 223 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(4-methoxypyridin-2-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (4-methoxy-2-pyridyl)methanol as the appropriate alcohol, Example 223 was obtained. HRMS calculated for C40H40ClN5O7S: 769.2337; found 385.6252 (M+2H).

Example 224 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(6-phenylpyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (6-phenylpyrimidin-4-yl)methanol (Preparation 9cg) as the appropriate alcohol, Example 224 was obtained. HRMS calculated for C44H41ClN6O6S: 816.2497; found 409.1321 (M+2H).

Example 225 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1,3-dimethyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (1,3-dimethyl-1H-pyrazol-5-yl)methanol as the appropriate alcohol, Example 225 was obtained. HRMS calculated for C39H41ClN6O6S: 756.2497; found 379.1313 (M+2H).

Example 226 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(3-cyclopropyl-1-methyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (3-cyclopropyl-1-methyl-1H-pyrazol-5-yl)methanol as the appropriate alcohol, Example 226 was obtained. HRMS calculated for C41H43ClN6O6S: 782.2653; found 392.1398 (M+2H).

Example 227 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(I-methyl-3-phenyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (1-methyl-3-phenyl-1H-pyrazol-5-yl)methanol as the appropriate alcohol, Example 227 was obtained. HRMS calculated for C44H43ClN6O6S: 818.2653; found 819.2735 (M+H).

Example 228 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-1 [3-(furan-2-yl)-1-methyl-1H-pyrazol-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (VIa) and [3-(furan-2-yl)-1-methyl-1H-pyrazol-5-yl]methanol as the appropriate alcohol, Example 228 was obtained. HRMS calculated for C42H41ClN6O7S: 808.2446; found 809.2524 (M+H).

Example 229 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(cyclopropylmethoxy)phenyl]propanoic Acid

Using General Procedure (VIa) and cyclopropylmethanol as the appropriate alcohol, Example 229 was obtained. HRMS calculated for C37H39N4O6SCl: 702.2279; found 703.2374 (M+H).

Example 230 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(isoquinolin-3-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (VIa) and isoquinolin-3-ylmethanol as the appropriate alcohol Example 230 was obtained. HRMS calculated for C43H40ClN5O6S: 789.2388; found 395.6256 (M+2H).

Example 231 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(5-chloropyridin-2-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (5-chloro-2-pyridyl)methanol as the appropriate alcohol, Example 231 was obtained. HRMS calculated for C39H37Cl2N5O6S: 773.1842; found 774.1921 (M+H).

Example 232 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(5-fluoropyridin-2-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (5-fluoro-2-pyridyl)methanol as the appropriate alcohol, Example 232 was obtained. HRMS calculated for C39H37ClFN5O6S: 757.2137; found 758.2199 (M+H).

Example 233 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(5-methoxypyridin-2-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (5-methoxy-2-pyridyl)methanol as the appropriate alcohol, Example 233 was obtained. HRMS calculated for C40H40ClN5O7S: 769.2337; found 385.6241 (M+2H).

Example 234 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(quinolin-2-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (VIa) and quinolin-2-ylmethanol as the appropriate alcohol, Example 234 was obtained. HRMS calculated for C43H40ClN5O6S: 789.2388; found 395.6253 (M+2H).

Example 235 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(6-methylpyridin-2-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (6-methyl-2-pyridyl)methanol as the appropriate alcohol, Example 235 was obtained. HRMS calculated for C40H40ClN5O6S: 753.2388; found 377.6262 (M+2H).

Example 236 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(6-chloropyridin-2-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (6-chloro-2-pyridyl)methanol as the appropriate alcohol, Example 236 was obtained. HRMS calculated for C39H37Cl2N5O6S: 773.1842; found 774.1906 (M+H).

Example 237 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[6-(pyrrolidin-1-yl)pyridin-2-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (VIa) and (6-pyrrolidin-1-yl-2-pyridyl)methanol as the appropriate alcohol, Example 237 was obtained. HRMS calculated for C43H45ClN6O6S: 808.2810; found 405.1472 (M+2H).

Example 238 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(6-methoxypyridin-2-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (6-methoxy-2-pyridyl)methanol as the appropriate alcohol, Example 238 was obtained. HRMS calculated for C40H40ClN5O7S: 769.2337; found 770.2432 (M+H).

Example 239 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(cyclopentylmethoxy)phenyl]propanoic Acid

Using General Procedure (VIa) and cyclopentylmethanol as the appropriate alcohol, Example 239 was obtained. HRMS calculated for C39H43ClN4O6S: 730.2592; found 731.2639 (M+H).

Example 240 (2R)-3-[2-(benzyloxy)phenyl]-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (VIa) and phenylmethanol as the appropriate alcohol, Example 240 was obtained. HRMS calculated for C40H39ClN4O6S: 738.2279; found 739.2319 (M+H).

Example 241 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyridin-2-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (VIa) and 2-pyridylmethanol as the appropriate alcohol, Example 241 was obtained. HRMS calculated for C39H38ClN5O6S: 739.2231; found 370.6197 (M+2H).

Example 242 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyridin-3-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (VIa) and 3-pyridylmethanol as the appropriate alcohol, Example 242 was obtained. HRMS calculated for C39H38ClN5O6S: 739.2231; found 370.6178 (M+2H).

Example 243 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyridazin-3-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (VIa) and pyridazin-3-ylmethanol as the appropriate alcohol, Example 243 was obtained. HRMS calculated for C38H37ClN6O6S: 740.2184; found 741.2227 (M+H).

Example 244 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(furan-2-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (VIa) and 2-furylmethanol as the appropriate alcohol, Example 244 was obtained. HRMS calculated for C38H37ClN4O7S: 728.2071; found 729.2112 (M+H).

Example 245 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(thiophen-2-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (VIa) and 2-thienylmethanol as the appropriate alcohol, Example 245 was obtained. HRMS calculated for C38H37ClN4O6S2: 744.1843; found 745.1895 (M+H).

Example 246 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-methyl-1H-pyrazol-3-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (1-methyl-1H-pyrazol-3-yl)methanol as the appropriate alcohol, Example 246 was obtained. HRMS calculated for C38H39ClN6O6S: 742.2340; found 372.1234 (M+2H).

Example 247 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-methylpyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (2-methylpyrimidin-4-yl)methanol as the appropriate alcohol, Example 247 was obtained. HRMS calculated for C39H39ClN6O6S: 754.2340; found 755.2446 (M+H).

Example 248 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(trifluoromethyl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (VIa) and [2-(trifluoromethyl)pyrimidin-4-yl]methanol (Preparation 9bj) as the appropriate alcohol, Example 248 was obtained. HRMS calculated for C39H36ClF3N6O6S: 808.2058; found 809.2126 (M+H).

Example 249 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-chloropyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (2-chloropyrimidin-4-yl)methanol (Preparation 9ch) as the appropriate alcohol, Example 249 was obtained. HRMS calculated for C38H36Cl2N6O6S: 774.1794; found 775.1863 (M+H).

Example 250 (2R)-3-{2-[(2-aminopyrimidin-4-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (VIa) and (2-aminopyrimidin-4-yl)methanol (Preparation 9al) as the appropriate alcohol, Example 250 was obtained. HRMS calculated for C38H38ClN7O6S: 755.2293; found 378.6217 (M+2H).

Example 251 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(dimethylamino)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (VIa) and [2-(dimethylamino)pyrimidin-4-yl]methanol (Preparation 9an) as the appropriate alcohol, Example 251 was obtained. HRMS calculated for C40H42ClN7O6S: 783.2606; found 392.6366 (M+2H).

Example 252 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(morpholin-4-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (VIa) and (2-(morpholin-4-yl)pyrimidin-4-yl)methanol (Preparation 9ar) as the appropriate alcohol, Example 252 was obtained. HRMS calculated for C42H44ClN7O7S: 825.2711; found 413.6424 (M+2H).

Example 253 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(methylamino)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (VIa) and [2-(methylamino)pyrimidin-4-yl]methanol (Preparation 9am) as the appropriate alcohol, Example 253 was obtained. HRMS calculated for C39H40ClN7O6S: 769.2449; found 385.6305 (M+2H).

Example 254 (2R)-3-(2-{[2-(benzylamino)pyrimidin-4-yl]methoxy}phenyl)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (VIa) and [2-(benzylamino)pyrimidin-4-yl]methanol (Preparation 9at) as the appropriate alcohol, Example 254 was obtained. HRMS calculated for C45H44ClN7O6S: 845.2762; found 423.6479 (M+2H).

Example 255 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-methoxypyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (2-methoxypyrimidin-4-yl)methanol as the appropriate alcohol Example 255 was obtained. HRMS calculated for C39H39ClN6O7S: 770.2289; found 771.2344 (M+H).

Example 256 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(cyclopropylmethoxy)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (VIa) and [2-(cyclopropylmethoxy)pyrimidin-4-yl]methanol (Preparation 9au) as the appropriate alcohol, Example 256 was obtained. HRMS calculated for C42H43ClN6O7S: 810.2602; found 406.1380 (M+2H).

Example 257 (2R)-3-(2-{[2-(benzyloxy)pyrimidin-4-yl]methoxy}phenyl)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (VIa) and (2-benzyloxypyrimidin-4-yl)methanol as the appropriate alcohol, Example 257 was obtained. HRMS calculated for C45H43ClN6O7S: 846.2602; found 424.1407 (M+2H).

Example 258 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyridin-4-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (VIa) and 4-pyridylmethanol as the appropriate alcohol, Example 258 was obtained. HRMS calculated for C39H38ClN5O6S: 739.2231; found 370.6187 (M+2H).

Example 259 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrimidin-4-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (VIa) and pyrimidin-4-ylmethanol as the appropriate alcohol, Example 259 was obtained. HRMS calculated for C38H37ClN6O6S: 740.2184; found 741.2259 (M+H).

Example 260 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-methyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (1-methyl-1H-pyrazol-5-yl)methanol as the appropriate alcohol, Example 260 was obtained. HRMS calculated for C38H39ClN6O6S: 742.2340; found 743.2404 (M+H).

Example 261 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-1 [1-(propan-2-yl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (VIa) and [1-(propan-2-yl)-1H-pyrazol-5-yl]methanol (Preparation 9dc) as the appropriate alcohol, Example 261 was obtained. HRMS calculated for C40H43ClN6O6S: 770.2653; found 771.2726 (M+H).

Example 262 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-cyclopentyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (1-cyclopentyl-1H-pyrazol-5-yl)methanol (Preparation 9dg) as the appropriate alcohol, Example 262 was obtained. HRMS calculated for C42H45ClN6O6S: 796.2810; found 797.2835 (M+H).

Example 263 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-phenyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (1-phenyl-1H-pyrazol-5-yl)methanol as the appropriate alcohol, Example 263 was obtained. HRMS calculated for C43H41ClN6O6S: 804.2497; found 805.2575 (M+H).

Example 264 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-ethyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (1-ethyl-1H-pyrazol-5-yl)methanol (Preparation 9da) as the appropriate alcohol, Example 264 was obtained. HRMS calculated for C39H41ClN6O6S: 756.2497; found 757.2597 (M+H).

Example 265 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(2,2,2-trifluoroethyl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (VIa) and [1-(2,2,2-trifluoroethyl)-1H-pyrazol-5-yl]methanol (Preparation 9du) as the appropriate alcohol, Example 265 was obtained. HRMS calculated for C39H38ClF3N6O6S: 810.2214; found 406.1175 (M+2H).

Example 266 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(oxetan-2-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (VIa) and oxetan-2-ylmethanol as the appropriate alcohol, Example 266 was obtained as a mixture of diastereoisomers. HRMS calculated for C37H39ClN4O7S: 718.2228; found 719.2296 (M+H) and found 719.2283 (M+H).

Example 267 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-methyl-1H-imidazol-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (1-methyl-1H-imidazol-4-yl)methanol as the appropriate alcohol, Example 267 was obtained. HRMS calculated for C38H39ClN6O6S: 742.2340; found 372.1233 (M+2H).

Example 268 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(5-methylpyrazin-2-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (5-methylpyrazin-2-yl)methanol as the appropriate alcohol Example 268 was obtained. HRMS calculated for C39H39ClN6O6S: 754.2340; found 755.2408 (M+H).

Example 269 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(5-chloropyrazin-2-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (5-chloropyrazin-2-yl)methanol as the appropriate alcohol, Example 269 was obtained. HRMS calculated for C38H36Cl2N6O6S: 774.1794; found 775.1817 (M+H).

Example 270 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(5-methoxypyrazin-2-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (5-methoxypyrazin-2-yl)methanol as the appropriate alcohol, Example 270 was obtained. HRMS calculated for C39H39ClN6O7S: 770.2289; found 771.2329 (M+H).

Example 271 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-methylpyrimidin-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (2-methylpyrimidin-5-yl)methanol as the appropriate alcohol, Example 271 was obtained. HRMS calculated for C39H39ClN6O6S: 754.2340; found 755.2422 (M+H).

Example 272 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(pyrrolidin-1-yl)pyrimidin-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (VIa) and (2-pyrrolidin-1-ylpyrimidin-5-yl)methanol as the appropriate alcohol, Example 272 was obtained. HRMS calculated for C42H44ClN7O6S: 809.2762; found 405.6443 (M+2H).

Example 273 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(morpholin-4-yl)pyrimidin-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (VIa) and (2-(morpholin-4-yl)pyrimidin-5-yl)methanol as the appropriate alcohol, Example 273 was obtained. HRMS calculated for C42H44ClN7O7S: 825.2711; found 413.6424 (M+2H).

Example 274 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-methoxypyrimidin-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (2-methoxypyrimidin-5-yl)methanol as the appropriate alcohol, Example 274 was obtained. HRMS calculated for C39H39ClN6O7S: 770.2289; found 771.2398 (M+H).

Example 275 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrazin-2-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (VIa) and pyrazin-2-ylmethanol as the appropriate alcohol, Example 275 was obtained. HRMS calculated for C38H37ClN6O6S: 740.2184; found 741.2255 (M+H).

Example 276 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-methyl-1H-imidazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (1-methyl-1H-imidazol-5-yl)methanol as the appropriate alcohol, Example 276 was obtained. HRMS calculated for C38H39ClN6O6S: 742.2340; found 372.1237 (M+2H).

Example 277 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrimidin-5-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (VIa) and pyrimidin-5-ylmethanol as the appropriate alcohol, Example 277 was obtained. HRMS calculated for C38H37ClN6O6S: 740.2184; found 741.2266 (M+H).

Example 278 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(1,3-thiazol-5-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (VIa) and 1,3-thiazol-5-ylmethanol as the appropriate alcohol, Example 278 was obtained. HRMS calculated for C37H36ClN5O6S2: 745.1796; found 746.1855 (M+H).

Example 279 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-methyl-1H-pyrazol-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (1-methyl-1H-pyrazol-4-yl)methanol as the appropriate alcohol, Example 279 was obtained. HRMS calculated for C38H39ClN6O6S: 742.2340; found 372.1243 (M+2H).

Example 280 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(1,3-oxazol-4-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (VIa) and 1,3-oxazol-4-ylmethanol as the appropriate alcohol, Example 280 was obtained. HRMS calculated for C37H36ClN5O7S: 729.2024; found 730.2116 (M+H).

Example 281 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(1,3-thiazol-4-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (VIa) and 1,3-thiazol-4-ylmethanol as the appropriate alcohol, Example 281 was obtained. HRMS calculated for C37H36ClN5O6S2: 745.1796; found 746.1867 (M+H).

Example 282 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-methyl-2H-indazol-3-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (2-methyl-2H-indazol-3-yl)methanol as the appropriate alcohol, Example 282 was obtained. HRMS calculated for C42H41ClN6O6S: 792.2497; found 397.1336 (M+2H).

Example 283 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(5-phenylpyrimidin-2-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (5-phenylpyrimidin-2-yl)methanol as the appropriate alcohol, Example 283 was obtained. HRMS calculated for C44H41ClN6O6S: 816.2497; found 817.2539 (M+H).

Example 284 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(isoquinolin-1-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (VIa) and isoquinolin-1-ylmethanol as the appropriate alcohol, Example 284 was obtained. HRMS calculated for C43H40ClN5O6S: 789.2388; found 395.6266 (M+2H).

Example 285 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(3-chloropyridin-2-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (3-chloro-2-pyridyl)methanol as the appropriate alcohol, Example 285 was obtained. HRMS calculated for C39H37Cl2N5O6S: 773.1842; found 774.1881 (M+H).

Example 286 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrimidin-2-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (VIa) and pyrimidin-2-ylmethanol as the appropriate alcohol, Example 286 was obtained. HRMS calculated for C38H37ClN6O6S: 740.2184; found 741.2229 (M+H).

Example 287 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-methyl-1H-imidazol-2-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and (1-methyl-1H-imidazol-2-yl)methanol as the appropriate alcohol, Example 287 was obtained. HRMS calculated for C38H39ClN6O6S: 742.2340; found 372.1246 (M+2H).

Example 288 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(3,3,3-trifluoropropoxy)phenyl]propanoic Acid

Using General Procedure (VIa) and 3,3,3-trifluoropropan-1-ol as the appropriate alcohol, Example 288 was obtained. HRMS calculated for C36H36ClF3N4O6S: 744.1996; found 745.2037 (M+H).

Example 289 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[2-(pyridin-2-yl)ethoxy]phenyl}propanoic Acid

Using General Procedure (VIa) and 2-(2-pyridyl)ethanol as the appropriate alcohol, Example 289 was obtained. HRMS calculated for C40H40ClN5O6S: 753.2388; found 377.6280 (M+2H).

Example 290 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(2-methoxyethoxy)phenyl]propanoic Acid

Using General Procedure (VIa) and 2-methoxyethanol as the appropriate alcohol, Example 290 was obtained. HRMS calculated for C36H39ClN4O7S: 706.2228; found 707.2279 (M+H).

Example 291 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(2-phenoxyethoxy)phenyl]propanoic Acid

Using General Procedure (VIa) and 2-phenoxyethanol as the appropriate alcohol, Example 291 was obtained. HRMS calculated for C41H41ClN4O7S: 768.2384; found 769.2459 (M+H).

Example 292 (2R)-3-{2-[2-(benzyloxy)ethoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (VIa) and 2-benzyloxyethanol as the appropriate alcohol, Example 292 was obtained. HRMS calculated for C42H43ClN4O7S: 782.2541; found 392.1344 (M+2H).

Example 293 (2S)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2R)-tetrahydrofuran-2-ylmethoxy]phenyl}propanoic Acid

503 mg 4-chloro-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(2-furyl)thieno[2,3-d]pyrimidine (Preparation 14) (1 mmol), 353 mg ethyl (2S)-2-hydroxy-3-[2-[[(2R)-tetrahydrofuran-2-yl]methoxy]phenyl]propanoate (Preparation 3bm) (1.2 mmol) and 986 mg cesium carbonate (3 mmol) were dissolved in 10 mL dry tertbutanol. The mixture was stirred at 60° C. under nitrogen until no further conversion was observed. The reaction mixture was cooled to room temperature, then 5 mL 2 M LiOH solution was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents. Diastereoisomer eluting later was collected as Example 293. HRMS calculated for C38H41ClN4O7S: 732.2384; found 733.2476 (M+H).

Example 294 (2R)-3-{2-[(1-benzyl-1H-1,2,3-triazol-4-yl)methoxy[phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid and Example 295 (2R)-3-{2-[(1-benzyl-1H-1,2,3-triazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

To a THF solution of 310 mg ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-prop-2-ynoxyphenyl)propanoate (see Step A of Example 216) (0.433 mmol), 86 mg benzyl azide (0.649 mmol) and 3 mg Cp*Ru(PPh3)2C1 were added and the mixture was stirred at 70° C. until no further conversion was observed. Then it was concentrated under reduced pressure and the crude product was purified via flash chromatography using DCM and MeOH as eluents to obtain the mixture of triazole regioisomers. Then 185 mg of this mixture (0.218 mmol) was dissolved in 5 mL dioxane/water (1:1) and 92 mg LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure. The regioisomers were separated and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents. Regioisomer eluting earlier was collected as Example 294. HRMS calculated for C43H42ClN7O6S: 819.2606; found 410.6375 (M+2H). Regioisomer eluting later was collected as Example 295. HRMS calculated for C43H42ClN7O6S: 819.2606; found 410.6381 (M+2H).

Example 296 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methyl-4-oxidopiperazin-1-yl)ethoxy[phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

During the synthesis of Example 209, Example 296 was formed and isolated as a side product. HRMS calculated for C34H35ClN4O7S: 678.1915; found 679.1966 (M+H).

Example 297 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methyl-1,4-dioxidopiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

200 mg (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic acid (Example 209) was dissolved in 1 mL methanol and 5 μL 50% aqueous hydrogen peroxide solution was added. The reaction mixture was stirred at room temperature overnight. Then water was added and the mixture was extracted with DCM. The organic phase was dried over Na2SO4, filtered and concentrated under reduced pressure. The crude product was purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Example 297. HRMS calculated for C34H35ClN4O8S: 694.1864; found 695.1911 (M+H).

General Procedure (VIIa) Step A

1.0 eq. of ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (Preparation 6e), 2.0 eq. of the appropriate alcohol and 2.0 eq. triphenylphosphine were dissolved in dry toluene (0.2 M for the phenol), then 2 eq. ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure, the crude ester was purified via flash chromatography using DCM and MeOH as eluents.

Step B

The obtained ester was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq. LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. The reaction mixture was diluted with brine, neutralized with 2 M HCl, extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

Example 298 (2R)-2-{[(5Sa)-5-(3-chloro-2-methyl-4-1 [(2S)-1-methylpyrrolidin-2-yl]methoxy}phenyl)-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (VIIa) and [(25)-1-methylpyrrolidin-2-yl]methanol as the appropriate alcohol, Example 298 was obtained. HRMS calculated for C33H32ClN3O6S: 633.1700; found 634.1771 (M+H).

Example 299 (2R)-2-{[(5Sa)-5-(3-chloro-2-methyl-4-{[(2R)-1-methylpyrrolidin-2-yl]methoxy}phenyl)-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (VIIa) and [(2R)-1-methylpyrrolidin-2-yl]methanol as the appropriate alcohol, Example 299 was obtained. HRMS calculated for C33H32ClN3O6S: 633.1700; found 634.1774 (M+H).

Example 300 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[(3R or S)-(1-methylazepan-3-yl)oxy[phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (VIIa) and (1-methyl-2-piperidyl)methanol as the appropriate alcohol, Example 300 was obtained collecting only the later eluting diastereomer (absolute configuration not confirmed). HRMS calculated for C34H34ClN3O6S: 647.1857; found 648.1916 (M+H).

Example 301 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[((3R or S)-1-methylpiperidin-3-yl)oxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid and Example 302 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[((3 S or R)-1-methylpiperidin-3-yl)oxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (VIIa) and 1-methylpiperidin-3-ol as the appropriate alcohol Example 301 was obtained collecting the earlier eluting diastereomer (absolute configuration not determined) HRMS calculated for C33H32ClN3O6S: 633.1700; found 634.1771 (M+H), and Example 302 was obtained collecting the later eluting diastereomer (absolute configuration not determined). HRMS calculated for C33H32ClN3O6S: 633.1700; found 634.1763 (M+H).

Example 303 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[(1-methylpyrrolidin-3-yl)oxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl) propanoic Acid

Using General Procedure (VIIa) and 1-methylpyrrolidin-3-ol as the appropriate alcohol, Example 303 was obtained. HRMS calculated for C32H30ClN3O6S: 619.1500; found 620.1544 (M+H).

Example 304 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[(1-methylpiperidin-4-yl)oxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl) propanoic Acid

Using General Procedure (VIIa) and 1-methylpiperidin-4-ol as the appropriate alcohol, Example 304 was obtained. HRMS calculated for C33H32ClN3O6S: 633.1700; found 634.1753 (M+H).

Example 305 (2R)-2-(1(5Sa)-5-[3-chloro-2-methyl-4-((3S or R)-pyrrolidin-3-yloxy)phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl}oxy)-3-(2-methoxyphenyl) propanoic Acid and Example 306 (2R)-2-(1(5Sa)-5-[3-chloro-2-methyl-4-((3R or S)-pyrrolidin-3-yloxy)phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl}oxy)-3-(2-methoxyphenyl) propanoic Acid

Using General Procedure (VIIa) and pyrrolidin-3-ol as the appropriate alcohol Example 305 was obtained collecting the earlier eluting diastereomer (absolute configuration not confirmed) HRMS calculated for C31H28ClN3O6S: 605.1387; found 606.1472 (M+H), and Example 306 was obtained collecting the later eluting diastereomer (absolute configuration not confirmed). HRMS calculated for C31H28ClN3O6S: 605.1387; found 606.1461 (M+H).

Example 307 (2R)-2-({(5Sa)-5-[4-((3S or R)-1-azabicyclo[2.2.2]oct-3-yloxy)-3-chloro-2-methylphenyl]-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl}oxy)-3-(2-methoxyphenyl)propanoic Acid and Example 308 (2R)-2-(1(5Sa)-5-[4-((3R or S)-1-azabicyclo[2.2.2]oct-3-yloxy)-3-chloro-2-methylphenyl]-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl}oxy)-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (VIIa) and quinuclidin-3-ol as the appropriate alcohol, Example 307 was obtained collecting the earlier eluting diastereomer (absolute configuration not confirmed) HRMS calculated for C34H32ClN3O6S: 645.1700; found 646.1799 (M+H), and Example 308 was obtained collecting the later eluting diastereomer (absolute configuration not confirmed). HRMS calculated for C34H32ClN3O6S: 645.1700; found 646.1746 (M+H).

Example 309 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[((2S or R)-1-methylpiperidin-2-yl)methoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl) propanoic Acid

Using General Procedure (VIIa) and (1-methyl-2-piperidyl)methanol as the appropriate alcohol, Example 309 was obtained collecting the earlier eluting diastereomer (absolute configuration not confirmed). HRMS calculated for C34H34ClN3O6S: 647.1857; found 648.1934 (M+H).

Example 310 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[(1-methylpyrrolidin-3-yl)methoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl) propanoic Acid

Using General Procedure (VIIa) and (1-methylpyrrolidin-3-yl)methanol as the appropriate alcohol, Example 310 was obtained. HRMS calculated for C33H32ClN3O6S: 633.1700; found 634.1775 (M+H).

Example 311 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[(1-methylpiperidin-4-yl)methoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl) propanoic Acid

Using General Procedure (VIIa) and (1-methyl-4-piperidyl)methanol as the appropriate alcohol, Example 311 was obtained. HRMS calculated for C34H34ClN3O6S: 647.1857; found 648.1911 (M+H).

Example 312 (2R)-2-{[(5Sa)-5-(3-chloro-4-1 [1-(2-methoxyethyl)pyrrolidin-3-yl]methoxy}-2-methylphenyl)-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl) propanoic Acid

Using General Procedure (VIIa) and [1-(2-methoxyethyl)pyrrolidin-3-yl]methanol as the appropriate alcohol, Example 312 was obtained. HRMS calculated for C35H36ClN3O7S: 677.1962; found 678.2026 (M+H).

Example 313 (2R)-2-{[(5Sa)-5-{3-chloro-4-[(1,4-dimethylpiperazin-2-yl)methoxy]-2-methylphenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl) propanoic Acid

Using General Procedure (VIIa) and (1,4-dimethylpiperazin-2-yl)methanol as the appropriate alcohol, Example 313 was obtained. HRMS calculated for C34H35ClN4O6S: 662.1966; found 663.2004 (M+H).

Example 314 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[(4-methylmorpholin-2-yl)methoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl) propanoic Acid

Using General Procedure (VIIa) and (4-methylmorpholin-2-yl)methanol as the appropriate alcohol, Example 314 was obtained. HRMS calculated for C33H32ClN3O7S: 649.1649; found 650.1710 (M+H).

Example 315 (2R)-2-(1(5Sa)-5-[3-chloro-2-methyl-4-(morpholin-2-ylmethoxy)phenyl]-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl}oxy)-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (VIIa) and morpholin-2-ylmethanol as the appropriate alcohol, Example 315 was obtained. HRMS calculated for C32H30ClN3O7S: 635.1493; found 636.1518 (M+H).

Example 316 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(1-methylpyrrolidin-2-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl) propanoic Acid

Using General Procedure (VIIa) and 2-(1-methylpyrrolidin-2-yl)ethanol as the appropriate alcohol, Example 316 was obtained. HRMS calculated for C34H34ClN3O6S: 647.1857; found 648.1909 (M+H).

Example 317 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(1-methylpiperidin-4-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (VIIa) and 2-(1-methyl-4-piperidyl)ethanol as the appropriate alcohol, Example 317 was obtained. HRMS calculated for C35H36ClN3O6S: 661.2013; found 662.2056 (M+H).

Example 318 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylmorpholin-2-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (VIIa) and 2-(4-methylmorpholin-2-yl)ethanol as the appropriate alcohol, Example 318 was obtained collecting only the later eluting diastereomer (absolute configuration not confirmed). HRMS calculated for C34H34ClN3O7S: 663.1806; found 664.1881 (M+H).

Example 319 (2R)-2-(1(5Sa)-5-[4-(2-aminoethoxy)-3-chloro-2-methylphenyl]-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl}oxy)-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (VIIa) and 2-aminoethanol as the appropriate alcohol, Example 319 was obtained. HRMS calculated for C29H26ClN3O6S: 579.1231; found 580.1301 (M+H).

Example 320 (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (VIIa) and 2-(dimethylamino)ethanol as the appropriate alcohol, Example 320 was obtained. HRMS calculated for C31H30ClN3O6S: 607.1544; found 608.1617 (M+H).

Example 321 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methyl-3-oxopiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (VIIa) and 4-(2-hydroxyethyl)-1-methyl-piperazin-2-one (Preparation 9eg) as the appropriate alcohol, Example 321 was obtained. HRMS calculated for C34H33ClN4O7S: 676.1758; found 677.1850 (M+H).

Example 322 (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(4-ethylpiperazin-1-yl)ethoxyl-2-methylphenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (VIIa) and 2-(4-ethylpiperazin-1-yl)ethanol as the appropriate alcohol, Example 322 was obtained. HRMS calculated for C35H37ClN4O6S: 676.2122; found 677.2186 (M+H).

Example 323 (2R)-2-{[(5Sa)-5-{4-[2-(4-acetylpiperazin-1-yl)ethoxy]-3-chloro-2-methylphenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid Step A

141 mg ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (Preparation 6e) (0.25 mmol), 0.092 mL 2-piperazin-1-ylethanol (0.75 mmol) and 197 mg triphenylphosphine (0.75 mmol) were dissolved in 5 mL dry toluene, then 173 mg ditertbutyl azodicarboxylate (0.75 mmol) was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude ester was purified via flash chromatography using DCM and MeOH as eluents resulting the intermediate product ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-(2-piperazin-1-ylethoxy)phenyl]-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl) propanoate. 1H NMR (500 MHz, DMSO-d6): 8.58 (s, 1H), 7.79 (dd, 1H), 7.25 (d, 1H), 7.24 (d, 1H), 7.18 (m, 1H), 6.91 (d, 1H), 6.75 (m, 1H), 6.52 (dd, 1H), 6.33 (d, 1H), 5.69 (dd, 1H), 5.41 (dd, 1H), 4.27 (m, 2H), 4.05 (m, 1H), 4.02 (m, 1H), 3.76 (s, 3H), 2.97 (dd, 1H), 2.73 (t, 2H), 2.64 (m, 4H), 2.43 (brm, 4H), 2.43 (dd, 1H), 1.94 (s, 3H), 1.06 (t, 3H).

Step B

87 mg ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-(2-piperazin-1-ylethoxy)phenyl]-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (0.13 mmol) and 0.036 mL triethylamine (0.26 mmol) were dissolved in 1 mL dry DCM at room temperature. 0.018 mL acetyl chloride (0.26 mmol) was added and the reaction mixture was stirred until no further conversion was observed. The reaction was quenched with water and the mixture was extracted with DCM. The combined organic phases were washed with water, dried with Na2SO4 and concentrated under reduced pressure. Crude ethyl (2R)-2-[(5Sa)-5-[4-[2-(4-acetylpiperazin-1-yl)ethoxy]-3-chloro-2-methyl-phenyl}-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate was dissolved in a mixture of 1 mL dioxane and 1 mL water and 11 mg LiOH×H2O (0.26 mmol) was added. The mixture was stirred at room temperature until no further conversion was observed. The reaction mixture was diluted with brine, neutralized with 2 M HCl, extracted with DCM, dried with Na2SO4, concentrated under reduced pressure and purified via preparative reversed phase chromatography resulting Example 323. HRMS calculated for C35H35ClN4O7S: 690.1915; found 691.1996 (M+H).

Example 324 (2R)-2-{[(5Sa)-5-(3-chloro-2-methyl-4-{2-[4-(propan-2-yl)piperazin-1-yl]ethoxy}phenyl)-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (VIIa) and 2-(4-isopropylpiperazin-1-yl)ethanol as the appropriate alcohol, Example 324 was obtained. HRMS calculated for C36H39ClN4O6S: 690.2279; found 691.2335 (M+H).

Example 325 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-phenylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (VIIa) and 2-(4-phenylpiperazin-1-yl)ethanol as the appropriate alcohol, Example 325 was obtained. HRMS calculated for C39H37ClN4O6S: 724.2122; found 725.2187 (M+H).

Example 326 (2R)-2-{[(5Sa)-5-(4-{12-[4-(2-amino-2-oxoethyl)piperazin-1-yl]ethoxy}-3-chloro-2-methylphenyl)-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

81 mg ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-(2-piperazin-1-ylethoxy)phenyl]-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (as described in Step A of Example 323) (0.12 mmol) was dissolved in 2 mL dry THF. 41 mg 2-bromoacetamide (0.30 mmol) and 98 mg Cs2CO3 (0.30 mmol) were added at room temperature and the mixture was heated at 70° C. until no further conversion was observed. The mixture was concentrated under reduced pressure and the crude product was hydrolyzed by the addition of 3 mL NaOH solution (10 m/m %) in aqueous methanol (90% methanol). The mixture was stirred at room temperature until no further conversion was observed. The reaction mixture was diluted with brine, neutralized with 2 M HCl, extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents resulting Example 326. HRMS calculated for C35H36ClN5O7S: 705.2024; found 706.2112 (M+H).

Example 327 (2R)-2-{[(5Sa)-5-(3-chloro-2-methyl-4-{12-[4-(2,2,2-trifluoroethyl)piperazin-1-yl]ethoxy}phenyl)-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (VIIa) and 2-[4-(2,2,2-trifluoroethyl)piperazin-1-yl]ethanol (Preparation 9eh) as the appropriate alcohol, Example 327 was obtained. HRMS calculated for C35H34ClF3N4O6S: 730.1840; found 731.1919 (M+H).

Example 328 (2R)-2-{[(5Sa)-5-(3-chloro-4-{12-[4-(2,2-difluoroethyl)piperazin-1-yl]ethoxy}-2-methylphenyl)-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (VIIa) and 2-[4-(2,2-difluoroethyl)piperazin-1-yl]ethanol (Preparation 9ei) as the appropriate alcohol, Example 328 was obtained. HRMS calculated for C35H35ClF2N4O6S: 712.1934; found 713.1978 (M+H).

Example 329 (2R)-2-{[(5Sa)-5-{14-[2-(4-benzylpiperazin-1-yl)ethoxy]-3-chloro-2-methylphenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid Step A

75 mg ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-(2-piperazin-1-ylethoxy)phenyl]-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (as described in Step A of Example 323) (0.115 mmol) and 0.013 mL benzaldehyde (0.127 mmol) were dissolved in 1 mL dry DCM. 37 mg sodium triacetoxyborohydride (0.173 mmol) was added and the reaction mixture was stirred at room temperature until no further conversion was observed. The reaction was quenched with NaHCO3 solution and extracted with DCM. The combined organic phases were dried with Na2SO4 and concentrated under reduced pressure. The crude product was purified using flash chromatography eluting with DCM-MeOH gradient.

Step B

The ester (product of Step A) was hydrolyzed by the addition of 3 mL NaOH solution (10 m/m %) in aqueous methanol (90% methanol). The mixture was stirred at room temperature until no further conversion was observed. The reaction mixture was diluted with brine, neutralized with 2 M HCl, extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents resulting Example 329. HRMS calculated for C40H39ClN4O6S: 738.2279; found 739.2322 (M+H).

Example 330 (2R)-2-{[(5Sa)-5-(3-chloro-4-{2-[4-(2-methoxyethyl)piperazin-1-yl]ethoxy}-2-methylphenyl)-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid Step A

135 mg ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-(2-piperazin-1-ylethoxy)phenyl]-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (as described in Step A of Example 323) (0.20 mmol) was dissolved in 1.5 mL dry THF. 0.040 mL 1-bromo-2-methoxy-ethane (0.40 mmol) and 130 mg Cs2CO3 (0.40 mmol) were added at room temperature and the mixture was heated at 70° C. until no further conversion was observed. The mixture was concentrated under reduced pressure and the crude product was purified using flash chromatography eluting with a DCM-MeOH gradient.

Step B

The ester obtained in Step A was hydrolyzed by adding 3 mL NaOH solution (10 m/m %) in aqueous methanol (90% methanol). The mixture was stirred at room temperature until no further conversion was observed. The reaction mixture was diluted with brine, neutralized with 2 M HCl, extracted with DCM. The combined organic phases were dried with Na2SO4, concentrated under reduced pressure and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents resulting Example 330. HRMS calculated for C36H39ClN4O7S: 706.2228; found 707.2273 (M+H).

Example 331 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(methylamino)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (VIIa) and 2-(methylamino)ethanol as the appropriate alcohol, Example 331 was obtained. HRMS calculated for C30H28ClN3O6S: 593.1387; found 594.1455 (M+H).

Example 332 (2R)-2-{[(5Sa)-5-(3-chloro-2-methyl-4-1 [(4-methylpiperazin-1-yl)acetyl]oxy}phenyl)-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

100 mg ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (Preparation 6e) (0.18 mmol) was dissolved in 0.5 mL dioxane and a solution of 37 mg LiOH×H2O (0.88 mmol) in 0.5 mL water was added to it. The mixture was stirred at room temperature for 30 minutes, quenched with water, acidified with dilute hydrochloric acid solution and extracted with DCM. The combined organic phases were dried with Na2SO4 and concentrated under reduced pressure. The crude product was re-dissolved in 2 mL dry DCM, 64 mg 2-(4-methylpiperazin-1-yl)acetic acid (0.40 mmol), 208 mg PyBOP (0.40 mmol) and 0.060 mL triethylamine (0.44 mmol) were added. The mixture was stirred at room temperature until no further conversion was observed. Further DCM was added and the organic phase was washed with water, dried with Na2SO4 and concentrated under reduced pressure. The crude product was purified with preparative HPLC resulting Example 332. HRMS calculated for C34H33ClN4O7S: 676.1758; found 677.1846 (M+H).

Example 333 (2R)-2-{[(5Ra)-5-{3-fluoro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid and Example 334 (2R)-2-{[(5Sa)-5-{3-fluoro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

501 mg ethyl (2R)-2-[5-(3-fluoro-4-hydroxy-2-methyl-phenyl)-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (Preparation 11b, mixture of diastereomers) (0.913 mmol), 198 mg 2-(4-methylpiperazin-1-yl)ethanol (1.37 mmol) and 480 mg triphenylphosphine (1.83 mmol) were dissolved in 10 mL dry toluene, then 420 mg ditertbutyl azodicarboxylate (1.83 mmol) was added. The mixture was stirred at 50° C. under nitrogen for 45 minutes. The volatiles were evaporated under reduced pressure and the crude ester was purified using flash chromatography (eluents: EtOAc and MeOH). The obtained ester was dissolved in a mixture of 4 mL dioxane and 2 mL water and 200 mg LiOH×H2O was added. The reaction mixture was stirred at room temperature for 1.5 hours, quenched by the addition of brine and neutralized with 2 M HCl. The mixture was extracted with DCM, dried with Na2SO4, concentrated under reduced pressure and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents. Example 333 was obtained as the diastereoisomer eluting earlier from the preparative HPLC column [HRMS calculated for C34H35FN4O6S: 646.2261; found 647.2365 (M+H)], and Example 334 was obtained as the diastereoisomer eluting later from the preparative HPLC column [HRMS calculated for C34H35FN4O6S: 646.2261; found 647.2302 (M+H)].

Example 335 (2R)-2-{[(5Sa)-5-{3-chloro-2-ethyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid and Example 336 (2R)-2-{[(5Ra)-5-{3-chloro-2-ethyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

250 mg ethyl ((2R)-2-[5-(3-chloro-2-ethyl-4-hydroxy-phenyl)-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (Preparation 11a, mixture of diastereomers) (0.40 mmol), 115 mg 2-(4-methylpiperazin-1-yl)ethanol (0.80 mmol) and 210 mg triphenylphosphine (0.80 mmol) were dissolved in 5 mL dry toluene, then 184 mg ditertbutyl azodicarboxylate (0.80 mmol) was added. The mixture was stirred at 50° C. under nitrogen for 1 hour. The volatiles were evaporated under reduced pressure and the crude ester was purified using flash chromatography (eluents: EtOAc and MeOH). The obtained ester was dissolved in a mixture of 4 mL dioxane and 2 mL water and 100 mg LiOH×H2O was added. The reaction mixture was stirred at 30° C. for 1 hour. Water was added to the mixture and pH was set to 4-5 with 2 M HCl. The mixture was extracted with DCM, dried with Na2SO4, concentrated under reduced pressure and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents. Example 335 was obtained as the diastereoisomer eluting later from the preparative HPLC column [HRMS calculated for C35H37ClN4O6S: 676.2122; found 677.2204 (M+H)], while Example 336 was obtained as the diastereoisomer eluting earlier from the preparative HPLC column [HRMS calculated for C35H37ClN4O6S: 676.2122; found 677.2181 (M+H)].

Example 337 (2R)-2-{[5-{3-chloro-2-fluoro-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid (Mixture of Diastereoisomers)

503 mg ethyl (2R)-2-[5-bromo-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (Preparation 4e) (1.00 mmol), 900 mg 1-[2-[2-chloro-3-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]ethyl]-4-methyl-piperazine (Preparation 5f) (2.20 mmol), 35 mg Ataphos (0.05 mmol) and 977 mg Cs2CO3 (3.00 mmol) were dissolved in 10 mL dioxane and 2 mL water. It was heated to 110° C. for 15 minutes via microwave irradiation. Then it was diluted with brine, extracted with DCM, and the combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via reversed phase chromatography, using 25 mM aqueous NH4HCO3 solution and MeCN as eluents. The obtained ester was dissolved in a mixture of 5 mL dioxane and 5 mL water and 200 mg LiOH×H2O was added. The reaction mixture was stirred at room temperature until no further conversion was observed. Water was added to the mixture and pH was set between 4-5 with 2 M HCl. The mixture was extracted with DCM, and the combined organic phases were dried with Na2SO4, concentrated under reduced pressure and purified via preparative reversed phase chromatography resulting Example 337. HRMS calculated for C33H32ClFN4O6S: 666.1715; found 667.1792 (M+H).

General Procedure (VIIIa) Step A

1.0 eq. 4-chloro-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(2-furyl)thieno[2,3-d[pyrimidine (Preparation 14), 1.2 eq. of the appropriate alcohol and 3.0 eq. cesium carbonate were dissolved in dry tertbutanol or dry DMSO (0.2 M for Preparation 14). The mixture was stirred at 60° C. under nitrogen until no further conversion was observed. The reaction mixture was cooled to room temperature then it was diluted with brine and extracted with DCM. The combined organic phases were dried over MgSO4 and evaporated under reduced pressure. The crude product was purified via flash chromatography using EtOAc/MeOH as eluents.

Step B

The product of Step A was dissolved in dioxane/H2O (1:1, 0.2 M for the product of Step A) and 10 eq. LiOH×H2O was added then it was stirred at room temperature until no further conversion was observed. The reaction mixture was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

Example 338 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(difluoromethoxy)phenyl]propanoic Acid

Using General Procedure (VIIIa) and methyl (2R)-3-[2-(difluoromethoxy)phenyl]-2-hydroxy-propanoate (Preparation 3aj) as the appropriate alcohol, the diastereoisomer eluting later was collected as Example 338. HRMS calculated for C34H33ClF2N4O6S: 698.1777; found 699.1866 (M+H).

Example 339 (2R)-{[(5Ra)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy[phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}(phenyl)ethanoic Acid and Example 340 (2R)-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}(phenyl)ethanoic Acid

Using General Procedure (VIIIa) and methyl (2R)-2-hydroxy-2-phenyl-acetate as the appropriate alcohol, the diastereoisomer eluting earlier was collected as Example 339 and the diastereoisomer eluting later was collected as Example 340. HRMS calculated for C32H31ClN4O5S: 618.1704; found 619.1766 (M+H) and 619.1768 (M+H).

Example 341 (2S)-2-{[(5Ra)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-fluorophenyl)propanoic Acid

Using General Procedure (VIIIa) and ethyl (2S)-3-(2-fluorophenyl)-2-hydroxy-propanoate (Preparation 3az) as the appropriate alcohol, the diastereoisomer eluting later was collected as Example 341. HRMS calculated for C33H32ClFN4O5S: 650.1766; found 651.1825 (M+H).

Example 342 (2R,3S)-2-{[(5Ra)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-hydroxy-3-phenylpropanoic Acid and Example 343 (2R,3S)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-hydroxy-3-phenylpropanoic Acid

Using General Procedure (VIIIa) and methyl (2R,3S)-2,3-dihydroxy-3-phenyl-propanoate as the appropriate alcohol, the diastereoisomer eluting earlier was collected as Example 342 and the diastereoisomer eluting later was collected as Example 343. HRMS calculated for C33H33ClN4O6S: 648.1809; found 649.1879 (M+H) and 649.1875 (M+H).

Example 344 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxy-5-methylphenyl)propanoic Acid

Using General Procedure (VIIIa) and ethyl (2R)-2-hydroxy-3-(2-methoxy-5-methyl-phenyl)propanoate (Preparation 3at) as the appropriate alcohol, the diastereoisomer eluting later was collected as Example 344. HRMS calculated for C35H37ClN4O6S: 676.2122; found 677.2176 (M+H).

Example 345 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(5-fluoro-2-methoxyphenyl)propanoic Acid

Using General Procedure (VIIIa) and ethyl (2R)-3-(5-fluoro-2-methoxy-phenyl)-2-hydroxy-propanoate (Preparation 3ar) as the appropriate alcohol, the diastereoisomer eluting later was collected as Example 345. HRMS calculated for C34H34ClFN4O6S: 680.1872; found 681.1947 (M+H).

Example 346 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(4-fluoro-2-methoxyphenyl)propanoic Acid

Using General Procedure (VIIIa) and ethyl (2R)-3-(4-fluoro-2-methoxy-phenyl)-2-hydroxy-propanoate (Preparation 3as) as the appropriate alcohol, the diastereoisomer eluting later was collected as Example 346. HRMS calculated for C34H34ClFN4O6S: 680.1872; found 681.1915 (M+H).

Example 347 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(3-methylphenyl)propanoic Acid

Using General Procedure (VIIIa) and methyl (2R)-2-hydroxy-3-(m-tolyl)propanoate (Preparation 3ap) as the appropriate alcohol, the diastereoisomer eluting later was collected as Example 347. HRMS calculated for C34H35ClN4O5S: 646.2017; found 647.2073 (M+H).

Example 348 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(3-fluorophenyl)propanoic Acid

Using General Procedure (VIIIa) and methyl (2R)-3-(3-fluorophenyl)-2-hydroxy-propanoate (Preparation 3ak) as the appropriate alcohol, the diastereoisomer eluting later was collected as Example 348. HRMS calculated for C33H32ClFN4O5S: 650.1766; found 651.1818 (M+H).

Example 349 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(3-methoxyphenyl)propanoic Acid

Using General Procedure (VIIIa) and methyl (2R)-2-hydroxy-3-(3-methoxyphenyl)propanoate (Preparation 3a1) as the appropriate alcohol, the diastereoisomer eluting later was collected as Example 349. HRMS calculated for C34H35ClN4O6S: 662.1966; found 663.2043 (M+H).

Example 350 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2,3-difluorophenyl)propanoic Acid

Using General Procedure (VIIIa) and methyl (2R)-3-(2,3-difluorophenyl)-2-hydroxy-propanoate (Preparation 3am) as the appropriate alcohol, the diastereoisomer eluting later was collected as Example 350. HRMS calculated for C33H31ClF2N4O5S: 668.1672; found 669.1729 (M+H).

Example 351 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxy-3-methylphenyl)propanoic Acid

Using General Procedure (VIIIa) and ethyl (2R)-2-hydroxy-3-(2-methoxy-3-methyl-phenyl)propanoate (Preparation 3au) as the appropriate alcohol, the diastereoisomer eluting later was collected as Example 351. HRMS calculated for C35H37ClN4O6S: 676.2122; found 677.2221 (M+H).

Example 352 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(3-fluoro-2-methoxyphenyl)propanoic Acid

Using General Procedure (VIIIa) and ethyl (2R)-3-(3-fluoro-2-methoxy-phenyl)-2-hydroxy-propanoate (Preparation 3aq) as the appropriate alcohol, the diastereoisomer eluting later was collected as Example 352. HRMS calculated for C34H34ClFN4O6S: 680.1872; found 681.1963 (M+H).

Example 353 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(trifluoromethyl)phenyl]propanoic Acid

Using General Procedure (VIIIa) and methyl (2R)-2-hydroxy-3-[2-(trifluoromethyl)phenyl[propanoate (Preparation 3an) as the appropriate alcohol, the diastereoisomer eluting later was collected as Example 353. HRMS calculated for C34H32ClF3N4O5S: 700.1734; found 701.1803 (M+H).

Example 354 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methylphenyl)propanoic Acid

Using General Procedure (VIIIa) and methyl (2R)-2-hydroxy-3-(o-tolyl)propanoate (Preparation 3ao) as the appropriate alcohol, the diastereoisomer eluting later was collected as Example 354. HRMS calculated for C34H35ClN4O5S: 646.2017; found 647.2087 (M+H).

Example 355 (2R)-3-[2-(aminomethyl)phenyl]-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid Step A

252 mg 4-chloro-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(2-furyl)thieno[2,3-d]pyrimidine (Preparation 14) (0.50 mmol), 196 mg ethyl (2R)-3-[2-[(tert-butoxycarbonylamino)methyl]phenyl]-2-hydroxy-propanoate (Preparation 3aw) (0.60 mmol) and 488 mg cesium carbonate (1.50 mmol) were dissolved in dry tertbutanol (0.1 M for Preparation 14). The mixture was stirred at 60° C. under nitrogen until no further conversion was observed. The mixture was cooled to room temperature, then it was diluted with brine and extracted with EtOAc. The combined organic phases were dried over MgSO4, filtered and concentrated, and then purified by flash chromatography on silica gel using EtOAc/MeOH as eluents to give ethyl (2R)-3-[2-[(tert-butoxycarbonylamino)methyl]phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate.

Step B

198 mg ethyl (2R)-3-[2-[(tert-butoxycarbonylamino)methyl]phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate (0.250 mmol) was dissolved in 10 mL dry DCM, then 1 mL TFA was added and it was stirred at room temperature until no further conversion was observed, and then reaction mixture was washed with saturated NaHCO3. The organic layer was dried over MgSO4, filtered and the volatiles were evaporated under reduced pressure to give ethyl (2R)-3-[2-(aminomethyl)phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate.

Step C

56 mg ethyl (2R)-3-[2-(aminomethyl)phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate (0.081 mmol) was dissolved in 1 mL dioxane/water (1:1) and 68 mg LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM. The combined organic phases were dried over Na2SO4, filtered, concentrated and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents. The diastereoisomer eluting later was collected as Example 355. HRMS calculated for C34H36ClN5O5S: 661.2126; found 331.6148 (M+2H).

Example 356 (2R)-3-{2-[(acetylamino)methyl]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid Step A

100 mg ethyl (2R)-3-[2-(aminomethyl)phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate (0.145 mmol) (Step B of Example 355) and 61 μl triethyl amine (435 μmol) were dissolved in 5 mL DCM, and then 12 μl acetyl chloride (174 μmol) was added. Reaction mixture was stirred at room temperature until no further conversion was observed. The crude mixture was purified via flash chromatography using EtOAc/MeOH as eluents to give ethyl (2R)-3-[2-(acetamidomethyl)phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate.

Step B

73 mg ethyl (2R)-3-[2-(acetamidomethyl)phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate (0.10 mmol) was dissolved in 2 mL dioxane/water (1:1) and 84 mg LiOH×H2O (2.0 mmol) was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated and purified via preparative reverse phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents. The diastereoisomer eluting later was collected as Example 356. HRMS calculated for C36H38ClN5O6S: 703.2231; found 704.231 (M+H).

Example 357 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy[phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-fluorophenyl)propanoic Acid

Using General Procedure (VIIIa) and ethyl (2R)-3-(2-fluorophenyl)-2-hydroxy-propanoate (Preparation 3ba) as the appropriate alcohol, the diastereoisomer eluting later was collected as Example 357. HRMS calculated for C33H32ClFN4O5S: 650.1766; found 651.1827 (M+H).

Example 358 (2R)-3-{2-[(tert-butoxycarbonyl)amino]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (VIIIa) and ethyl (2R)-3-[2-(tert-butoxycarbonylamino)phenyl]-2-hydroxy-propanoate (Preparation 3av) as the appropriate alcohol, the diastereoisomer eluting later was collected as Example 358. HRMS calculated for C38H42ClN5O7S: 747.2493; found 748.2538 (M+H).

Example 359 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy[phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2,3-dihydro-1-benzofuran-7-yl)propanoic Acid

Using General Procedure (VIIIa) and ethyl (2R)-3-(2,3-dihydrobenzofuran-7-yl)-2-hydroxy-propanoate (Preparation 3bd) as the appropriate alcohol, the diastereoisomer eluting later was collected as Example 359. HRMS calculated for C35H35ClN4O6S: 674.1966; found 675.2033 (M+H).

Example 360 (2S)-2-{[(5Ra)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2,3-dihydro-1-benzofuran-7-yl)propanoic Acid

Using General Procedure (VIIIa) and ethyl (2S)-3-(2,3-dihydrobenzofuran-7-yl)-2-hydroxy-propanoate (Preparation 3be) as the appropriate alcohol, the diastereoisomer eluting later was collected as Example 360. HRMS calculated for C35H35ClN4O6S: 674.1966; found 675.2025 (M+H).

Example 361 (2S)-2-{[(5Ra)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxyl phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2,2,2-trifluoroethyl)sulfanyl]phenyl}propanoic Acid

Using General Procedure (VIIIa) and ethyl (2S)-2-hydroxy-3-[2-(2,2,2-trifluoroethylsulfanyl)phenyl]propanoate (Preparation 3ax) as the appropriate alcohol, the diastereoisomer eluting later was collected as Example 361. HRMS calculated for C35H34ClF3N4O5S2: 746.1611; found 747.1678 (M+H).

Example 362 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxyl phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2,2,2-trifluoroethyl)sulfanyl]phenyl}propanoic Acid

Using General Procedure (VIIIa) and ethyl (2R)-2-hydroxy-3-[2-(2,2,2-trifluoroethylsulfanyl)phenyl]propanoate (Preparation 3ay) as the appropriate alcohol, the diastereoisomer eluting later was collected as Example 362 was obtained. HRMS calculated for C35H34ClF3N4O5S2: 746.1611; found 747.1682 (M+H).

General Procedure (IXa)

1 eq. of ethyl (2R)-2-[6-(5-chloro-2-furyl)-(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (Preparation 8f), 2 eq. of the appropriate alcohol and 2 eq. PPh3 were dissolved in dry toluene (0.2 M for the phenol), then 2 eq. ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen. After no further conversion observed the volatiles were evaporated under reduced pressure and the crude ester was purified via flash chromatography using EtOAc and MeOH as eluents.

Step B

The product of Step A was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq. LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The residue was purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

Example 363 (2R)-2-{[6-(5-chlorofuran-2-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (IXa) and methanol as the appropriate alcohol, Example 363 was obtained. HRMS calculated for C34H34Cl2N4O6S: 696.1576; found 697.1656 (M+H).

Example 364 (2R)-2-{[6-(5-chlorofuran-2-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2R)-tetrahydrofuran-2-ylmethoxy]phenyl}propanoic Acid

Using General Procedure (IXa) and [(2R)-tetrahydrofuran-2-yl]methanol as the appropriate alcohol, Example 364 was obtained. HRMS calculated for C38H40Cl2N4O7S: 766.1995; found 767.2056 (M+H).

Example 365 (2R)-2-{[6-(5-chlorofuran-2-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(2,2,2-trifluoroethoxy)phenyl]propanoic Acid

214 mg ethyl (2R)-2-[6-(5-chloro-2-furyl)-(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl) propanoate (Preparation 8f) (0.300 mmol) and 138 mg K2CO3 (1.00 mmol) were dissolved in 2 mL DMF, then 232 mg 2,2,2-trifluoroethyl trifluoromethanesulfonate (1.00 mmol) was added. The mixture was stirred at room temperature under nitrogen for 7 hours. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The crude product was dissolved in 8 mL dioxane-water (1:1) and 126 mg LiOH×H2O (3.00 mmol) was added. The mixture was stirred at room temperature for 1 hour. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure and the residue was purified via preparative reversed phase chromatography using 5 mM aqueous NH4HCO3 solution and MeCN as eluents to give Example 365. HRMS calculated for C35H33Cl2F3N4O6S: 764.145; found 765.1523 (M+H).

Example 366 (2R)-2-{[6-(5-chlorofuran-2-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyridin-2-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (IXa) and 2-pyridylmethanol as the appropriate alcohol, Example 366 was obtained. HRMS calculated for C39H37Cl2N5O6S: 773.1842; found 387.5992 (M+2H).

Example 367 (2R)-2-{[6-(5-chlorofuran-2-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(trifluoromethyl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (IXa) and [2-(trifluoromethyl)pyrimidin-4-yl]methanol (Preparation 9bj) as the appropriate alcohol, Example 367 was obtained. HRMS calculated for C39H35C12F3N6O6S: 842.1668; found 843.175 (M+H).

Example 368 (2R)-2-{[6-(5-chlorofuran-2-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(morpholin-4-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (IXa) and (2-(morpholin-4-yl)pyrimidin-4-yl)methanol (Preparation 9ar) as the appropriate alcohol, Example 368 was obtained. HRMS calculated for C42H43Cl2N7O7S: 859.2322; found 430.6247 (M+2H).

Example 369 (2R)-2-{[6-(5-chlorofuran-2-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-methoxypyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (IXa) and (2-methoxypyrimidin-4-yl)methanol as the appropriate alcohol, Example 369 was obtained. HRMS calculated for C39H38Cl2N6O7S: 804.19; found 805.2032 (M+H).

Example 370 (2R)-2-{[6-(5-chlorofuran-2-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrimidin-4-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (IXa) and pyrimidin-4-ylmethanol as the appropriate alcohol, Example 370 was obtained. HRMS calculated for C38H36Cl2N6O6S: 774.1794; found 775.182 (M+H).

Example 371 (2R)-2-{[6-(5-chlorofuran-2-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-methyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (IXa) and (1-methyl-1H-pyrazol-5-yl)methanol as the appropriate alcohol, Example 371 was obtained. HRMS calculated for C38H38Cl2N6O6S: 776.1951; found 777.1999 (M+H).

Example 372 (2R)-2-{[6-(5-chlorofuran-2-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-ethyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (IXa) and (1-ethyl-1H-pyrazol-5-yl)methanol (Preparation 9da) as the appropriate alcohol, Example 372 was obtained. HRMS calculated for C39H40Cl2N6O6S: 790.2107; found 396.1113 (M+2H).

Example 373 (2R)-2-{[6-(5-chlorofuran-2-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(2,2,2-trifluoroethyl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (IXa) and [1-(2,2,2-trifluoroethyl)-1H-pyrazol-5-yl]methanol (Preparation 9du) as the appropriate alcohol, Example 373 was obtained. HRMS calculated for C39H37C12F3N6O6S: 844.1824; found 845.186 (M+H).

Example 374 (2R)-2-{[6-(5-chlorofuran-2-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrazin-2-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (IXa) and pyrazin-2-ylmethanol as the appropriate alcohol, Example 374 was obtained. HRMS calculated for C38H36Cl2N6O6S: 774.1794; found 775.1824 (M+H).

Example 375 (2R)-2-{[6-(5-chlorofuran-2-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrimidin-5-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (IXa) and pyrimidin-5-ylmethanol as the appropriate alcohol, Example 375 was obtained. HRMS calculated for C38H36Cl2N6O6S: 774.1794; found 775.1869 (M+H).

Example 376 (2R)-2-{[6-(5-chlorofuran-2-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(1,3-oxazol-4-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (IXa) and 1,3-oxazol-4-ylmethanol as the appropriate alcohol, Example 376 was obtained. HRMS calculated for C37H35Cl2N5O7S: 763.1634; found 764.1685 (M+H).

Example 377 (2R)-2-{[6-(5-chlorofuran-2-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2S)-tetrahydrofuran-2-ylmethoxy]phenyl}propanoic Acid Step A

228 mg of ethyl (2R)-2-[6-(5-chloro-2-furyl)-(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[[(2S)-tetrahydrofuran-2-yl]methoxylphenyl}propanoate (Preparation 6g, 0.340 mmol), 101 mg 2-(4-methylpiperazin-1-yl)ethanol (0.70 mmol), and 184 mg PPh3 (0.700 mmol) were dissolved in 2 mL dry toluene, then 161 mg ditertbutyl azodicarboxylate (0.700 mmol) was added. The mixture was stirred at 50° C. under nitrogen until no further conversion observed, than the volatiles were evaporated under reduced pressure and the residue was purified via flash chromatography using EtOAc and MeOH as eluents.

Step B

The product of Step A was dissolved in 6 mL dioxane-water 1:1 and 150 mg LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM, then the combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The residue was purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to give Example 377. HRMS calculated for C38H40Cl2N4O7S: 766.1995; found 767.2095 (M+H).

General Procedure (Xa) Step A

1 eq. ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluoro-3-methoxy-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (Preparation 8g), 2 eq. of the appropriate alcohol and 2 eq. triphenyl phosphine were dissolved in dry toluene (5 mL/mmol), then 2 eq. ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using ethyl acetate and methanol as eluents.

Step B

The obtained intermediate was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

Example 378 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluoro-3-methoxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (Xa) and methanol as the appropriate alcohol, Example 378 was obtained. HRMS calculated for C37H38ClFN4O6S: 720.2185; found 721.2243 (M+H).

Example 379 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluoro-3-methoxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2R)-tetrahydrofuran-2-ylmethoxy]phenyl}propanoic Acid

Using General Procedure (Xa) and [(2R)-tetrahydrofuran-2-yl]methanol as the appropriate alcohol, Example 379 was obtained. HRMS calculated for C41H44ClFN4O7S: 790.2603; found 791.2670 (M+H).

Example 380 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluoro-3-methoxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(2,2,2-trifluoroethoxy)phenyl]propanoic Acid Step A

221 mg ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluoro-3-methoxy-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (Preparation 8g) (0.3 mmol) and 138 mg K2CO3 (1.0 mmol) were dissolved in 2 mL DMF, then 232 mg 2,2,2-trifluoroethyl trifluoromethanesulfonate (1.0 mmol) was added. The mixture was stirred at room temperature under nitrogen until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure.

Step B

The obtained intermediate was dissolved in 8 mL dioxane-water 1:1 and 150 mg LiOH×H2O (3.57 mmol) was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 5 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Example 380. HRMS calculated for C38H37ClF4N4O6S: 788.2058; found 789.2133 (M+H).

Example 381 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluoro-3-methoxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyridin-2-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (Xa) and 2-pyridylmethanol as the appropriate alcohol, Example 381 was obtained. HRMS calculated for C42H41ClFN5O6S: 797.2450; found 399.6308 (M+2H).

Example 382 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluoro-3-methoxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-1 [2-(trifluoromethyl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (Xa) and [2-(trifluoromethyl)pyrimidin-4-yl]methanol (Preparation 9bj) as the appropriate alcohol, Example 382 was obtained. HRMS calculated for C42H39ClF4N6O6S: 866.2276; found 867.2352 (M+H).

Example 383 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluoro-3-methoxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-methoxypyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Xa) and (2-methoxypyrimidin-4-yl)methanol as the appropriate alcohol, Example 383 was obtained. HRMS calculated for C42H42ClFN6O7S: 828.2508; found 415.1343 (M+2H).

Example 384 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluoro-3-methoxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-ethyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Xa) and (1-ethyl-1H-pyrazol-5-yl)methanol (Preparation 9da) as the appropriate alcohol, Example 384 was obtained. HRMS calculated for C42H44ClFN6O6S: 814.2716; found 408.1436 (M+2H).

Example 385 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluoro-3-methoxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-propyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (Xa) and (1-propyl-1H-pyrazol-5-yl)methanol (Preparation 9db) as the appropriate alcohol, Example 385 was obtained. HRMS calculated for C43H46ClFN6O6S: 828.2872; found 415.1536 (M+2H).

Example 386 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluoro-3-methoxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrazin-2-ylmethoxy)phenyl]propanoic Acid

Using General Procedure (Xa) and pyrazin-2-ylmethanol as the appropriate alcohol, Example 386 was obtained. HRMS calculated for C4iH40ClFN6O6S: 798.2403; found 799.2474 (M+H).

Example 387 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluoro-3-methoxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(2-methoxyethoxy)phenyl]propanoic Acid

Using General Procedure (Xa) and 2-methoxyethanol as the appropriate alcohol, Example 387 was obtained. HRMS calculated for C39H42ClFN4O7S: 764.2447; found 765.2502 (M+H).

General Procedure (XIa) Step A

1 eq. methyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 6i), 2 eq. of the appropriate alcohol and 2 eq. PPh3 were dissolved in dry toluene (0.2 M for the phenol), then 2 eq. ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using EtOAc and MeOH as eluents.

Step B

The obtained intermediate was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq. LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM, and the combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

General Procedure (XIb) Step A

1 eq. methyl (2R)-2-[(5Ra)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d[pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 6n), 2 eq. of the appropriate alcohol and 2 eq. PPh3 were dissolved in dry toluene (0.2 M for the phenol), then 2 eq. ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using EtOAc and MeOH as eluents.

Step B

The obtained intermediate was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq

LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM, and the combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

General Procedure (XIc) Step A

1 eq. methyl (2R)-2-[6-ethyl-(5Sa)-5-(4-hydroxy-2-methyl-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 6j), 2 eq. of the appropriate alcohol and 2 eq. PPh3 were dissolved in dry toluene (0.2 M for the phenol), then 2 eq. ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using EtOAc and MeOH as eluents.

Step B

The obtained intermediate was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq. LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM, and the combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

General Procedure (XId) Step A

1 eq. methyl (2R)-2-[6-ethyl-(5Ra)-5-(4-hydroxy-2-methyl-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 6o), 2 eq. of the appropriate alcohol and 2 eq. PPh3 were dissolved in dry toluene (0.2 M for the phenol), then 2 eq. ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using EtOAc and MeOH as eluents.

Step B

The obtained intermediate was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq. LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM, and the combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

General Procedure (XIe) Step A

1 eq. phenol derivative, 2 eq. of the appropriate alcohol and 2 eq. PPh3 were dissolved in dry toluene (0.2 M for the phenol), then 2 eq. ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using EtOAc and MeOH as eluents.

Step B

The obtained intermediate was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq. LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM, and the combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

General Procedure (XIf)

1 eq. ester was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq. LiOH×H2O was added and the mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM, and the combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure. If necessary it was purified via preparative reversed phase chromatography using MeCN and 25 mM aqueous NH4HCO3 solution as eluents.

Example 388 (2R)-2-{[(5Sa)-5-(3-chloro-4-hydroxy-2-methylphenyl)-6-ethylthieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Methyl (2R)-2-[(5Sa)-5-[3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 6i) was hydrolyzed according to General Procedure (XIf) to give Example 388. HRMS calculated for C24H21ClN2O4S: 468.0911; found 469.0997 (M+H).

Example 389 (2R)-2-{[(5Ra)-5-(3-chloro-4-hydroxy-2-methylphenyl)-6-ethylthieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Methyl (2R)-2-[(5Ra)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 6n) was hydrolyzed according to General Procedure (XIf) to give Example 389. HRMS calculated for C24H21ClN2O4S: 468.0911; found 469.0982 (M+H).

Example 390 (2R)-2-[((5Sa)-5-{3-chloro-4-[2-(dimethylamino)-2-oxoethoxy]-2-methylphenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIa) and 2-hydroxy-N,N-dimethyl-acetamide as the appropriate alcohol, Example 390 was obtained. HRMS calculated for C28H28ClN3O5S: 553.1438; found 554.1538 (M+H).

Example 391 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-oxo-2-(pyrrolidin-1-yl)ethoxy[phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIa) and 2-hydroxy-1-pyrrolidin-1-yl-ethanone as the appropriate alcohol, Example 391 was obtained. HRMS calculated for C30H30ClN3O5S: 579.1595; found 580.1673 (M+H).

Example 392 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-[4-methylpiperazin-1-yl)-2-oxoethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIa) and 2-hydroxy-1-(4-methylpiperazin-1-yl)ethanone as the appropriate alcohol, Example 392 was obtained. HRMS calculated for C31H33ClN4O5S: 608.1860; found 609.1948 (M+H).

Example 393 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(morpholin-4-yl)-2-oxoethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIa) and 2-hydroxy-1-(morpholin-4-yl)ethanone as the appropriate alcohol, Example 393 was obtained. HRMS calculated for C30H30ClN3O6S: 595.1544; found 596.1626 (M+H).

Example 394 (2R)-2-({(5Sa)-5-[4-(benzyloxy)-3-chloro-2-methylphenyl]-6-ethylthieno[2,3-d]pyrimidin-4-yl}oxy)-3-phenylpropanoic Acid

Using General Procedure (XIa) and phenylmethanol as the appropriate alcohol, Example 394 was obtained. HRMS calculated for C31H27ClN2O4S: 558.1380; found 559.1465 (M+H).

Example 395 (2R)-2-(1(5Sa)-5-[3-chloro-2-methyl-4-(pyridin-4-ylmethoxy)phenyl]-6-ethylthieno[2,3-d]pyrimidin-4-yl}oxy)-3-phenylpropanoic Acid

Using General Procedure (XIa) and 4-pyridylmethanol as the appropriate alcohol, Example 395 was obtained. HRMS calculated for C30H26ClN3O4S: 559.1333; found 560.1396 (M+H).

Example 396 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(pyridin-3-yl)ethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIa) and 2-(3-pyridyl)ethanol as the appropriate alcohol, Example 396 was obtained. HRMS calculated for C31H28ClN3O4S: 573.1489; found 574.1559 (M+H).

Example 397 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(pyridin-4-yl)ethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIa) and 2-(4-pyridyl)ethanol as the appropriate alcohol, Example 397 was obtained. HRMS calculated for C31H28ClN3O4S: 573.1489; found 574.1562 (M+H).

Example 398 (2R)-2-{[(5Sa)-5-[4-butoxy-3-chloro-2-methylphenyl)-6-ethylthieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XIa) and butan-1-ol as the appropriate alcohol, Example 398 was obtained. HRMS calculated for C28H29ClN2O4S: 524.1537; found 525.1619 (M+H).

Example 399 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[3-(pyridin-4-yl)propoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIa) and 3-(4-pyridyl)propan-1-ol as the appropriate alcohol, Example 399 was obtained. HRMS calculated for C32H30ClN3O4S: 587.1646; found 588.1732 (M+H).

Example 400 (2R)-2-[((5Sa)-5-{3-chloro-4-[3-(dimethylamino)propoxy]-2-methylphenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIa) and 3-(dimethylamino)propan-1-ol as the appropriate alcohol, Example 400 was obtained. HRMS calculated for C29H32ClN3O4S: 553.1802; found 554.1891 (M+H).

Example 401 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[3-(2-oxopyrrolidin-1-yl)propoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIa) and 1-(3-hydroxypropyl)pyrrolidin-2-one as the appropriate alcohol, Example 401 was obtained. HRMS calculated for C31H32ClN3O5S: 593.1751; found 594.1826 (M+H).

Example 402 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[3-(4-methylpiperazin-1-yl)propoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIa) and 3-(4-methylpiperazin-1-yl)propan-1-ol as the appropriate alcohol, Example 402 was obtained. HRMS calculated for C32H37ClN4O4S: 608.2224; found 609.2304 (M+H).

Example 403 (2R)-2-[((5Sa)-5-{3-chloro-4-[3-(1H-imidazol-1-yl)propoxyl-2-methylphenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIa) and 3-(1H-imidazol-1-yl)propan-1-ol as the appropriate alcohol, Example 403 was obtained. HRMS calculated for C30H29ClN4O4S: 576.1598; found 577.1698 (M+H).

Example 404 (2R)-2-{[(5Sa)-5-(3-chloro-4-{3-[(ethylcarbamoyl)amino]propoxy}-2-methylphenyl)-6-ethylthieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XIa) and 1-ethyl-3-(3-hydroxypropyl)urea as the appropriate alcohol, Example 404 was obtained. HRMS calculated for C30H33ClN4O5S: 596.1860; found 597.1943 (M+H).

Example 405 (2R)-2-(1(5Sa)-5-[3-chloro-4-(3-hydroxypropoxy)-2-methylphenyl]-6-ethylthieno[2,3-d]pyrimidin-4-yl}oxy)-3-phenylpropanoic Acid

Using General Procedure (XIa) and propane-1,3-diol as the appropriate alcohol, Example 405 was obtained. HRMS calculated for C27H27ClN2O5S: 526.1329; found 527.1402 (M+H).

Example 406 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[3-(methylsulfonyl)propoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIa) and 3-methylsulfonylpropan-1-ol as the appropriate alcohol, Example 406 was obtained. HRMS calculated for C28H29ClN2O6S2: 588.1156; found 589.1242 (M+H).

Example 407 (2R)-2-[((5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIa) and 2-(dimethylamino)ethanol as the appropriate alcohol, Example 407 was obtained. HRMS calculated for C28H30ClN3O4S: 539.1646; found 540.1742 (M+H).

Example 408 (2R)-2-[((5Ra)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIb) and 2-(dimethylamino)ethanol as the appropriate alcohol, Example 408 was obtained. HRMS calculated for C28H30ClN3O4S: 539.1646; found 540.1744 (M+H).

Example 409 (2R)-2-[((5Sa)-5-{4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIc) and 2-(dimethylamino)ethanol as the appropriate alcohol, Example 409 was obtained. HRMS calculated for C28H31N3O4S: 505.2035; found 506.2096 (M+H).

Example 410 (2R)-2-[((5Ra)-5-{14-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XId) and 2-(dimethylamino)ethanol as the appropriate alcohol, Example 410 was obtained. HRMS calculated for C28H31N3O4S: 505.2035; found 506.2109 (M+H).

Example 411 (2R)-2-{[(5Sa)-5-(3-chloro-4-{12-[(2-hydroxyethyl)(methyl)amino]ethoxy}-2-methylphenyl)-6-ethylthieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XIa) and 2-[2-hydroxyethyl(methyl)amino]ethanol as the appropriate alcohol, Example 411 was obtained. HRMS calculated for C29H32ClN3O5S: 569.1751; found 570.1837 (M+H).

Example 412 (2R)-2-{[(5Sa)-5-(4-{12-[bis(2-hydroxyethyl)amino]ethoxy}-3-chloro-2-methylphenyl)-6-ethylthieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XIa) and 2-[bis(2-hydroxyethyl)amino]ethanol as the appropriate alcohol, Example 412 was obtained. HRMS calculated for C30H34ClN3O6S: 599.1857; found 600.1939 (M+H).

Example 413 (2R)-2-[((5Sa)-5-{3-chloro-4-[2-(4-hydroxypiperidin-1-yl)ethoxy]-2-methylphenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIa) and 1-(2-hydroxyethyl)piperidin-4-ol as the appropriate alcohol, Example 413 was obtained. HRMS calculated for C31H34ClN3O5S: 595.1908; found 596.1976 (M+H).

Example 414 (2R)-2-[((5Ra)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIb) and 2-(4-methylpiperazin-1-yl)ethanol as the appropriate alcohol, Example 414 was obtained. HRMS calculated for C31H35ClN4O4S: 594.2068; found 595.2138 (M+H).

Example 415 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIa) and 2-(4-methylpiperazin-1-yl)ethanol as the appropriate alcohol, Example 415 was obtained. HRMS calculated for C31H35ClN4O4S: 594.2068; found 595.2148 (M+H).

Example 416 (2R)-2-[(6-ethyl-(5Ra)-5-{2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XId) and 2-(4-methylpiperazin-1-yl)ethanol as the appropriate alcohol, Example 416 was obtained. HRMS calculated for C31H36N4O4S: 560.2457; found 561.2524 (M+H).

Example 417 (2R)-2-[(6-ethyl-(5Sa)-5-{2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIc) and 2-(4-methylpiperazin-1-yl)ethanol as the appropriate alcohol, Example 417 was obtained. HRMS calculated for C31H36N4O4S: 560.2457; found 561.2536 (M+H).

Example 418 (2R)-2-[((5Sa)-5-{3-chloro-4-[2-(1H-imidazol-1-yl)ethoxy]-2-methylphenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIa) and 2-(1H-imidazol-1-yl)ethanol as the appropriate alcohol, Example 418 was obtained. HRMS calculated for C29H27ClN4O4S: 562.1442; found 563.1537 (M+H).

Example 419 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(2-oxoimidazolidin-1-yl)ethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIa) and 1-(2-hydroxyethyl)imidazolidin-2-one as the appropriate alcohol, Example 419 was obtained. HRMS calculated for C29H29ClN4O5S: 580.1547; found 581.1613 (M+H).

Example 420 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(morpholin-4-yl)ethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIa) and 2-(morpholin-4-yl)ethanol as the appropriate alcohol, Example 420 was obtained. HRMS calculated for C30H32ClN3O5S: 581.1751; found 582.1847 (M+H).

Example 421 (2R)-2-[((5Ra)-5-{3-chloro-2-methyl-4-[2-(morpholin-4-yl)ethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIb) and 2-(morpholin-4-yl)ethanol as the appropriate alcohol, Example 421 was obtained. HRMS calculated for C30H32ClN3O5S: 581.1751; found 582.1853 (M+H).

Example 422 (2R)-2-[((5Sa)-5-{14-[2-(acetylamino)ethoxy]-3-chloro-2-methylphenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIa) and N-(2-hydroxyethyl)acetamide as the appropriate alcohol, Example 422 was obtained. HRMS calculated for C28H28ClN3O5S: 553.1438; found 554.1511 (M+H).

Example 423 (2R)-2-(1(5Sa)-5-[3-chloro-4-(2-hydroxyethoxy)-2-methylphenyl]-6-ethylthieno[2,3-d]pyrimidin-4-yl}oxy)-3-phenylpropanoic Acid

Using General Procedure (XIa) and ethylene glycol as the appropriate alcohol, Example 423 was obtained. HRMS calculated for C26H25ClN2O5S: 512.1173; found 513.1256 (M+H).

Example 424 (2R)-2-[1(5Sa)-5-[3-chloro-4-(2-methoxyethoxy)-2-methylphenyl]-6-ethylthieno[2,3-d]pyrimidin-4-yl}oxy)-3-phenylpropanoic Acid

Using General Procedure (XIa) and 2-methoxyethanol as the appropriate alcohol, Example 424 was obtained. HRMS calculated for C27H27ClN2O5S: 526.1329; found 527.1400 (M+H).

Example 425 (2R)-2-[((5Sa)-5-{3-chloro-4-[2-(2-methoxyethoxy)ethoxy]-2-methylphenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIa) and 2-(2-methoxyethoxy)ethanol as the appropriate alcohol, Example 425 was obtained. HRMS calculated for C29H31ClN2O6S: 570.1591; found 571.1690 (M+H).

Example 426 (2R)-2-{[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-5-nitrophenyl)-6-ethylthieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Methyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-5-nitro-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 15a) was hydrolyzed according to General Procedure (XIf) to give Example 426. HRMS calculated for C24H20ClN3O6S: 513.0761; found 514.0840 (M+H).

Example 427 (2R)-2-{[(5Sa)-5-(5-bromo-3-chloro-4-hydroxy-2-methylphenyl)-6-ethylthieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Methyl (2R)-2-[(5.5,)-5-(5-bromo-3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 15f) was hydrolyzed according to General Procedure (XIf) to give Example 427. HRMS calculated for C24H20BrClN2O4S: 546.0016; found 547.0106 (M+H).

Example 428 (2R)-2-{[(5Sa)-5-(3,5-dichloro-4-hydroxy-2-methylphenyl)-6-ethylthieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Methyl (2R)-2-[(5Sa)-5-(3,5-dichloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 15e) was hydrolyzed according to General Procedure (XIf) to give Example 428. HRMS calculated for C24H20Cl2N2O4S: 502.0521; found 503.0582 (M+H).

Example 429 (2R)-2-{[(5Ra)-5-(3,5-dichloro-4-hydroxy-2-methylphenyl)-6-ethylthieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

40 mg methyl (2R)-2-[6-ethyl-(5Ra)-5-(4-hydroxy-2-methyl-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 6o) (0.089 mmol) was dissolved in 2 mL THF and 26 mg NCS (0.193 mmol) was added. The mixture was stirred at 55° C. until no further conversion was observed. Then the volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using heptane and EtOAc as eluents. The obtained intermediate was hydrolyzed according to General Procedure (XIf) to give Example 429. HRMS calculated for C24H20Cl2N2O4S: 502.0521; found 503.0587 (M+H).

Example 430 (2R)-2-[((5Sa)-5-{3-chloro-4-hydroxy-2-methyl-5-[(4-methylpiperazin-1-yl)methyl]phenyl]-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

483 mg methyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 6i) (1.0 mmol) and 140 mg hexamethylenetetramine (1.0 mmol) were dissolved in 10 mL TFA and stirred at 90° C. for 3 hours. The cooled reaction mixture was poured onto 100 mL icy water and the precipitated solid was filtered and dried. Then it was dissolved in 20 mL EtOH, 167 μL 1-methylpiperazine (1.5 mmol) and 636 mg Na(OAc)3H (3.0 mmol) were added and the mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with water, extracted with DCM, combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude intermediate was purified via reversed phase chromatography using aqueous 0.1% TFA solution and MeCN as eluents. The intermediate obtained in Step A was hydrolyzed according to General Procedure (XIf) to give Example 430. HRMS calculated for C30H33ClN4O4S: 580.1911; found 581.1972 (M+H).

Example 431 (2R)-2-{[(5Sa)-5-(5-amino-3-chloro-4-hydroxy-2-methylphenyl)-6-ethylthieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Methyl (2R)-2-[(5Sa)-5-(5-amino-3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 15b) was hydrolyzed according to General Procedure (XIf) to give Example 431. HRMS calculated for C24H22ClN3O4S: 483.1020; found 484.1083 (M+H).

Example 432 (2R)-2-(1 (5Sa)-5-[3-chloro-4-hydroxy-2-methyl-5-(4-methylpiperazin-1-yl)phenyl]-6-ethylthieno[2,3-d]pyrimidin-4-yl}oxy)-3-phenylpropanoic Acid

1.00 g immobilized PPh3 (3.00 mmol) and 761 mg iodine (3.00 mmol) were dissolved in 5 mL DCM and stirred for 15 minutes, then 272 mg imidazole (4.00 mmol) was added, and the mixture was stirred for 10 minutes. Then 115 μL 2-[2-hydroxyethyl(methyl)amino]ethanol (1.00 mmol) was added, and the mixture was stirred for 1 hour. Then it was filtered, the filtrate was washed with saturated Na2S2O3 solution and brine, dried over Na2SO4, filtered and concentrated under reduced pressure. To the formed 2-iodo-N-(2-iodoethyl)-N-methyl-ethanamine 100 mg methyl (2R)-2-[(5Sa)-5-(5-amino-3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 15b) (0.20 mmol), 42 mg NaHCO3 (0.50 mmol) and 2 mL EtOH were added and the mixture was stirred at reflux temperature overnight. Then it was diluted with EtOAc, washed with water and brine. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure. The crude intermediate was purified via flash chromatography, using EtOAc and MeOH as eluents. The obtained intermediate was hydrolyzed according to General Procedure (XIf) to give Example 432. HRMS calculated for C29H31ClN4O4S: 566.1755; found 567.1794 (M+H).

Example 433 (2R)-2-(1(5Sa)-5-[3-chloro-5-(formylamino)-4-hydroxy-2-methylphenyl]-6-ethylthieno[2,3-d]pyrimidin-4-yl}oxy)-3-phenylpropanoic Acid

35 mg methyl (2R)-2-[(5Sa)-5-(5-amino-3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl}oxy-3-phenyl-propanoate (Preparation 15b) (0.07 mmol) was dissolved in 0.5 mL dry toluene under N2. 23 μL triethyl-orthoformate (0.136 mmol) was added and the mixture was stirred at 100° C. for 2.5 hours. Then the volatiles were evaporated under reduced pressure and the residue was purified via flash chromatography, using heptane and EtOAc as eluents. The obtained intermediate was hydrolyzed according to General Procedure (XIf) to give Example 433. HRMS calculated for C25H22ClN3O5S: 511.0969; found 512.1048 (M+H).

Example 434 (2R)-2-[((5Sa)-5-{3-chloro-4-methoxy-2-methyl-5-[(4-methylpiperazin-1-yl)methyl[phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid Step A

408 mg methyl (2R)-2-[(5Sa)-5-(5-bromo-3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 15f) (0.73 mmol) was dissolved in 4 mL MeOH, then 444 mg immobilized PPh3 (1.33 mmol) and 306 mg ditertbutyl azodicarboxylate (1.33 mmol) were added and the mixture was stirred at 50° C. under nitrogen until no further conversion was observed. Then the mixture was filtered, the filtrate was concentrated under reduced pressure and the residue was purified via flash chromatography using heptane and EtOAc as eluents to obtain methyl (2R)-2-[(5Sa)-5-(5-bromo-3-chloro-4-methoxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate.

Step B

195 mg of the bromo derivative (0.34 mmol) synthesized in step A was dissolved in 3 mL THF, then 309 mg potassium 1-methyl-4-trifluoroboratomethylpiperazine (1.70 mmol), 8 mg Pd(OAc)2 (0.034 mmol), 28 mg SPhos (0.068 mmol), 665 mg Cs2CO3 (2.04 mmol) and 0.3 mL water were added, and the mixture was heated to 90° C. for 10 minutes via microwave irradiation. Then the volatiles were evaporated under reduced pressure, the residue was diluted with brine, extracted DCM, and the combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure. The obtained intermediate was hydrolyzed according to General Procedure (XIf) to give Example 434.

HRMS calculated for C31H35ClN4O4S: 594.2068; found 595.2145 (M+H).

Example 435 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]-5-nitrophenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIe), methyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-5-nitro-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 15a) as the phenol and 2-(4-methylpiperazin-1-yl)ethanol as the appropriate alcohol, Example 435 was obtained. HRMS calculated for C31H34ClN5O6S: 639.1918; found 640.1984 (M+H).

Example 436 (2R)-2-[((5Sa)-5-{3,5-dichloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIe) with methyl (2R)-2-[(5Sa)-5-(3,5-dichloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 15e) as the phenol and 2-(4-methylpiperazin-1-yl)ethanol as the appropriate alcohol, Example 436 was obtained. HRMS calculated for C31H34Cl2N4O4S: 628.1678; found 629.1776 (M+H).

Example 437 (2R)-2-[((5Sa)-5-{5-amino-3-chloro-2-methyl-4-[2-[4-methylpiperazin-1-yl)ethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XIe) with methyl (2R)-2-[(5Sa)-5-[5-amino-3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 15b) as the phenol and 2-(4-methylpiperazin-1-yl)ethanol as the appropriate alcohol, Example 437 was obtained. HRMS calculated for C31H36ClN5O4S: 609.2177; found 610.2226 (M+H).

Example 438 (2R)-2-{[(5Sa)-5-[5-chloro-4-hydroxy-2-methylphenyl)-6-ethylthieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

100 mg methyl (2R)-2-[6-ethyl-(5Sa)-5-(4-hydroxy-2-methyl-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 6j) (0.223 mmol) was dissolved in 5 mL THF, then 31 mg NCS (0.234 mmol) was added. The reaction mixture was stirred at 60° C. overnight. Two monochlorinated and a dichlorinated intermediate were formed. The volatiles were evaporated under reduced pressure and the isomers were separated via preparative reversed phase chromatography using 40 mM aqueous NH4OAc solution (pH was set to 4 with AcOH) and MeCN as eluents. The monochlorinated regioisomer eluting earlier was collected. The obtained intermediate was hydrolyzed according to General Procedure (XIf) to give Example 438. HRMS calculated for C24H21ClN2O4S: 468.0911; found 469.0981 (M+H).

Example 439 (2R)-2-{[(5Ra)-5-(5-chloro-4-hydroxy-2-methylphenyl)-6-ethylthieno[2,3-d]pyrimidin-4-yl}oxy}-3-phenylpropanoic Acid

105 mg methyl (2R)-2-[6-ethyl-(5Ra)-5-(4-hydroxy-2-methyl-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 6o) (0.234 mmol) was dissolved in 5 mL THF, then 34 mg NCS (0.257 mmol) was added. The mixture was stirred at 60° C. overnight. Two monochlorinated and a dichlorinated intermediate were formed. The volatiles were evaporated under reduced pressure, and the mixture was hydrolyzed according to General Procedure (XIf). The isomer mixture was separated via preparative reversed phase chromatography using 40 mM aqueous NH4OAc solution (pH was set to 4 with AcOH) and MeCN as eluents. The monochlorinated regioisomer eluting later was collected as Example 439. HRMS calculated for C24H21ClN2O4S: 468.0911; found 469.0987 (M+H).

Example 440 (2R)-2-[(6-ethyl-(5Sa)-5-{2-methyl-5-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic acid and (2S)-2-[(6-ethyl-(5Ra)-5-{2-methyl-5-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid (Racemic)

45 mg 2-(6-ethyl-5-iodo-thieno[2,3-d[pyrimidin-4-yl)oxy-3-phenyl-propanoic acid (Preparation 4m) (0.10 mmol), 108 mg 1-methyl-4-[2-[4-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]ethyl[piperazine (Preparation 5h) (0.30 mmol), 18 mg Pd2dba3 (0.02 mmol), 14 mg nBuPAd2 (0.04 mmol) and 55 mg K2CO3 (0.40 mmol) were dissolved in 2 mL DME and 0.5 mL water. The mixture was heated to 120° C. for 10 minutes via microwave irradiation. Then the mixture was cooled to room temperature, filtered, washed with saturated NaHCO3 solution. The filtrate was washed with Et2O, then it was acidified with 2 M HCl and extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereomers were separated and purified via preparative reversed phase chromatography using 40 mM aqueous NH4OAc solution (pH was set to 4 with AcOH) and MeCN as eluents. The diastereoisomer pair eluting later was collected as Example 440. HRMS calculated for C31H36N4O4S: 560.2457; found 561.2549 (M+H).

Example 441 (2R)-2-{[(5Sa)-5-(8-chloro-7-methyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-6-yl)-6-ethylthieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

100 mg methyl (2R)-2-[(5Sa)-5-(5-amino-3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 15b) (0.20 mmol) was dissolved in 1 mL dry THF under N2 and was cooled to 0° C. Then 42 mg K2CO3 (0.30 mmol) and 19 μL bromoacetyl bromide (0.22 mmol) were added and the mixture was stirred for 30 minutes, then heated to 50° C. and stirred overnight. Then it was concentrated under reduced pressure and purified via flash chromatography, using heptane and EtOAc as eluents. The obtained ester was hydrolyzed according to General Procedure (XIf) to give Example 441. HRMS calculated for C26H22ClN3O5S: 523.0969; found 524.1062 (M+H).

Example 442 (2R)-2-[((5Sa)-5-{7-chloro-2-[(dimethylamino)methyl]-6-methyl-1-benzofuran-5-yl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

152 mg methyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-5-iodo-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 15d) (0.25 mmol), 33 mg N,N-dimethylprop-2-yn-1-amine (0.40 mmol), 18 mg PdCl2(PPh3)2 (0.025 mmol) and 5 mg copper(I) iodide (0.025 mmol) were dissolved in 1 mL DIPA under N2. The mixture was stirred at 50° C. for 30 minutes. Then it was concentrated under reduced pressure and purified via flash chromatography, using heptane and EtOAc as eluents. The obtained intermediate was hydrolyzed according to General Procedure (XIf) to give Example 442.

HRMS calculated for C29H28ClN3O4S: 549.1489; found 505.0959 (M+H−Me2NH).

Example 443 (2R)-2-{[(5Sa)-5-(7-chloro-6-methyl-1-benzofuran-5-yl)-6-ethylthieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

110 mg methyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-5-iodo-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl}oxy-3-phenyl-propanoate (Preparation 15d) (0.18 mmol), 51 [IL ethynyl(trimethyl)silane (0.36 mmol), 6.3 mg PdCl2(PPh3)2 (0.009 mmol) and 1.7 mg copper(I) iodide (0.009 mmol) were dissolved in 2 mL DIPA under N2. The mixture was stirred at 50° C. for 10 minutes, then 0.22 mL TBAF (1 M in THF, 0.22 mmol) was added and the mixture was stirred for additional 20 minutes. Then the volatiles were evaporated under reduced pressure and the residue was purified via flash chromatography, using heptane and EtOAc as eluents. The obtained intermediate was hydrolyzed according to General Procedure (XIf) to give Example 443. HRMS calculated for C26H21ClN2O4S: 492.0911; found 493.0999 (M+H).

Example 444 (2R)-2-{[(5Sa)-5-(7-chloro-2,6-dimethyl-1,3-benzoxazol-5-yl)-6-ethylthieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

50 mg methyl (2R)-2-[(5Sa)-5-(5-amino-3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 15b) (0.10 mmol) was dissolved in 0.5 mL dry toluene under N2. 27 μL triethyl-orthoacetate (0.15 mmol) was added and the mixture was stirred at 100° C. for 2.5 hours. Then the volatiles were evaporated under reduced pressure and the residue was purified via flash chromatography, using heptane and EtOAc as eluents. The obtained intermediate was hydrolyzed according to General Procedure (XIf) to give Example 444. HRMS calculated for C26H22ClN3O4S: 507.1020; found 508.1114 (M+H).

Example 445 (2R)-2-[((5Sa)-5-{7-chloro-6-methyl-2-[(4-methylpiperazin-1-yl)methyl]-1,3-benzoxazol-5-yl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

56 mg methyl (2R)-2-[(5Sa)-5-[7-chloro-2-(chloromethyl)-6-methyl-1,3-benzoxazol-5-yl]-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 15c) (0.10 mmol) was dissolved in 2 mL dry THF under N2. 20 mg 4-methyl-piperazine (0.20 mmol) was added and the mixture was stirred at room temperature for 1 hour. Then the volatiles were evaporated under reduced pressure and the obtained crude intermediate was hydrolyzed according to General Procedure (XIf) to give Example 445. HRMS calculated for C31H32ClN5O4S: 605.1864; found 606.1937 (M+H).

Example 446 (2R)-2-(1(5Sa)-5-[7-chloro-6-methyl-2-(morpholin-4-ylmethyl)-1,3-benzoxazol-5-yl]-6-ethylthieno[2,3-d]pyrimidin-4-yl}oxy)-3-phenylpropanoic Acid

56 mg methyl (2R)-2-[(5.5,)-5-[7-chloro-2-(chloromethyl)-6-methyl-1,3-benzoxazol-5-yl]-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 15c) (0.10 mmol) was dissolved in 2 mL dry THF under N2. 18 mg morpholine (0.20 mmol) was added and the mixture was stirred at room temperature overnight. The volatiles were evaporated under reduced pressure and the obtained crude intermediate was hydrolyzed according to General Procedure (XIf) to give Example 446. HRMS calculated for C30H29ClN4O5S: 592.1547; found 593.1613 (M+H).

Example 447 (2R)-2-{[6-ethyl-(5.5,)-5-(4-hydroxy-2-methylphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Methyl (2R)-2-[6-ethyl-(5Sa)-5-(4-hydroxy-2-methyl-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 6j) was hydrolyzed according to General Procedure (XIf) to give Example 447. HRMS calculated for C24H22N2O4S: 434.1300; found 435.1358 (M+H).

Example 448 (2R)-2-{[6-ethyl-(5Ra)-5-(4-hydroxy-2-methylphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Methyl (2R)-2-[6-ethyl-(5Ra)-5-(4-hydroxy-2-methyl-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 6o) was hydrolyzed according to General Procedure (XIf) to give Example 448. HRMS calculated for C24H22N2O4S: 434.1300; found 435.1369 (M+H).

Example 449 (2R)-2-{[(5Sa)-5-(3-chloro-2-methylphenyl)-6-ethylthieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic acid and (2S)-2-{[(5Ra)-5-(3-chloro-2-methylphenyl)-6-ethylthieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid (Racemic)

373 mg 2-(6-ethyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-3-phenyl-propanoic acid (Preparation 4m) (0.82 mmol), 280 mg (3-chloro-2-methyl-phenyl)boronic acid (1.64 mmol), 151 mg Pd2dba3 (0.164 mmol), 118 mg nBuPAd2 (0.329 mmol) and 795 mg K2CO3 (5.75 mmol) were dissolved in 15 mL DME and 3 mL water. The mixture was heated to 80° C. for 30 minutes via microwave irradiation. Then it was cooled to room temperature, filtered, washed with saturated NaHCO3 solution. The filtrate was washed with Et2O, then it was acidified with 2 M HCl and extracted with DCM, the combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereomers were separated and purified via preparative reversed phase chromatography using 40 mM aqueous NH4OAc solution (pH was set to 4 with AcOH) and MeCN as eluents. Diastereoisomer pair eluting earlier was collected as Example 449. HRMS calculated for C24H21ClN2O3S: 452.0961; found 453.1045 (M+H).

Example 450 (2R)-2-{[(5Sa)-5-(3-chloro-2-methylphenyl)-6-ethylthieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid and Example 451 (2R)-2-{[(5Ra)-5-(3-chloro-2-methylphenyl)-6-ethylthieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

150 mg methyl (2R)-2-(6-ethyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-3-phenyl-propanoate (Preparation 4i) (0.320 mmol), 164 mg (3-chloro-2-methyl-phenyl)boronic acid (0.961 mmol), 74 mg Pd(PPh3)4 (0.064 mmol), and 265 mg Ag2CO3 (0.961 mmol) were dissolved in 6 mL DME. It was heated to 100° C. for 10 minutes via microwave irradiation. Then the mixture was cooled to room temperature, and the volatiles were evaporated under reduced pressure. The diastereoisomers were separated via flash chromatography, using heptane and EtOAc as eluents. The diastereoisomer eluting earlier was collected and hydrolyzed according to General Procedure (XIf) to give Example 450. HRMS calculated for C24H21ClN2O3S: 452.0961; found 453.1040 (M+H). The diastereoisomer eluting later was collected and hydrolyzed according to General Procedure (XIf) to give Example 451. HRMS calculated for C24H21ClN2O3S: 452.0961; found 453.1044 (M+H).

Example 452 (2R)-2-{[6-ethyl-(5Sa)-5-(3-hydroxy-2-methylphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic acid and (2S)-2-{[6-ethyl-(5Ra)-5-(3-hydroxy-2-methylphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid (Racemic)

45 mg 2-(6-ethyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-3-phenyl-propanoic acid (Preparation 4m) (0.10 mmol), 70 mg 2-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (0.30 mmol), 18 mg Pd2dba3 (0.02 mmol), 14 mg nBuPAd2 (0.04 mmol) and 55 mg K2CO3 (0.40 mmol) were dissolved in 2 mL DME and 0.5 mL water. It was heated to 90° C. for 30 minutes via microwave irradiation. Then the mixture was cooled to room temperature, filtered, washed with saturated NaHCO3 solution. The filtrate was washed with Et2O, then it was acidified with 2 M HCl and extracted with DCM. The combined organic phases were dried over Na2SO4, filtered and concentrated under reduced pressure. The diastereomers were separated and purified via preparative reversed phase chromatography using 40 mM aqueous NH4OAc solution (pH was set to 4 with AcOH) and MeCN as eluents. The diastereoisomer pair eluting earlier was collected as Example 452. HRMS calculated for C24H22N2O4S: 434.1300; found 435.1371 (M+H).

General Procedure (XIIa) Step A

1 eq. ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (Preparation 8h), 2 eq. of the appropriate alcohol and 2. eq triphenyl phosphine were dissolved in abs. toluene (0.2 M for the phenol), then 2 eq ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using ethyl acetate and methanol as eluents.

Step B

The product of Step A was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure and the residue was purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

General Procedure (XIIb) Step A

1 eq. of the appropriate phenol, 2 eq. 2-(4-methylpiperazin-1-yl)ethanol and 2 eq. triphenyl phosphine were dissolved in abs. toluene (5 mL/mmol), then 2 eq. ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using ethyl acetate and methanol as eluents.

Step B

The product of Step A was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure and the residue was purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

Example 453 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XIIa) and methanol as the appropriate alcohol, Example 453 was obtained. HRMS calculated for C32H37ClN4O5S: 624.2173; found 625.2259 (M+H).

Example 454 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-[2-(2,2,2-trifluoroethoxy)phenyl]propanoic Acid Step A

192 mg ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl) propanoate (Preparation 8h) (0.3 mmol) and 138 mg K2CO3 (1.0 mmol) were dissolved in 2 mL DMF, then 232 mg 2,2,2-trifluoroethyl trifluoromethanesulfonate (1.0 mmol) was added. The mixture was stirred at room temperature under nitrogen until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure.

Step B

The product of Step A was dissolved in 8 mL dioxane-water 1:1 and 150 mg LiOH×H2O (3.57 mmol) was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure and the residue was purified via preparative reversed phase chromatography using 5 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Example 454. HRMS calculated for C33H36ClF3N4O5S: 692.2047; found 693.2151 (M+H).

Example 455 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-{2-[(2-methoxypyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (XIIa) and (2-methoxypyrimidin-4-yl)methanol as the appropriate alcohol, Example 455 was obtained. HRMS calculated for C37H41ClN6O6S: 732.2497; found 367.1311 (M+2H).

Example 456 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-{2-[(1-ethyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (XIIa) and (1-ethyl-1H-pyrazol-5-yl)methanol (Preparation 9da) as the appropriate alcohol, Example 456 was obtained. HRMS calculated for C37H43ClN6O5S: 718.2704; found 360.144 (M+2H).

Example 457 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-[2-(2-methoxyethoxy)phenyl[propanoic Acid

Using General Procedure (XIIa) and 2-methoxyethanol as the appropriate alcohol, Example 457 was obtained. HRMS calculated for C34H41ClN4O6S: 668.2435; found 335.1297 (M+2H).

Example 458 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-(2,3-dihydro-1-benzofuran-7-yl)propanoic Acid

Using General Procedure (XIIb) and ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2,3-dihydrobenzofuran-7-yl)propanoate (Preparation 17c) as the appropriate phenol, Example 458 were obtained.

HRMS calculated for C33H37ClN4O5S: 636.2173; found 637.2233 (M+H).

Example 459 (2S)-2-[((5Ra)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-(2,3-dihydro-1-benzofuran-7-yl)propanoic Acid

Using General Procedure (XIIb) and ethyl (2S)-2-[(5Ra)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2,3-dihydrobenzofuran-7-yl)propanoate (Preparation 17d) as the appropriate phenol, Example 459 were obtained.

HRMS calculated for C33H37ClN4O5S: 636.2173; found 637.2236 (M+H).

Example 460 (2R)-3-(1,3-benzodioxol-4-yl)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]propanoic Acid

Using General Procedure (XIIb) and ethyl (2R)-3-(1,3-benzodioxol-4-yl)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate (Preparation 17b) as the appropriate phenol, Example 460 was obtained. HRMS calculated for C32H35ClN4O6S: 638.1966; found 639.2067 (M+H).

Example 461 (2R)-3-(1-benzofuran-7-yl)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]propanoic Acid

Using General Procedure (XIIb) and ethyl (2R)-3-(benzofuran-7-yl)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate (Preparation 17e) as the appropriate phenol, Example 461 was obtained. HRMS calculated for C33H35ClN4O5S: 634.2017; found 635.2069 (M+H).

Example 462 (2S)-3-(1-benzofuran-7-yl)-2-[((5Ra)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]propanoic Acid

Using General Procedure (XIIb) and ethyl (2S)-3-(benzofuran-7-yl)-2-[(5Ra)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate (Preparation 17f) as the appropriate phenol, Example 462 was obtained. HRMS calculated for C33H35ClN4O5S: 634.2017; found (M+H).

Example 463 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-(2-fluorophenyl)propanoic Acid

Using General Procedure (XIIb) and ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-fluorophenyl)propanoate (Preparation 17h) as the phenol, Example 463 was obtained. HRMS calculated for C31H34ClFN4O4S: 612.1973; found 613.205 (M+H).

Example 464 (2S)-2-[((5Ra)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-(2-fluorophenyl)propanoic Acid

Using General Procedure (XIIb) and ethyl (2S)-2-[(5Ra)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-fluorophenyl)propanoate (Preparation 17g) as the phenol, Example 464 was obtained. HRMS calculated for C31H34ClFN4O4S: 612.1973; found 613.2053 (M+H).

General Procedure (XIIIa) Step A

1 eq. ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (Preparation 6l), 2 eq. of the appropriate alcohol and 2 eq. PPh3 were dissolved in dry toluene (0.2 M for the phenol), then 2 eq. ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using EtOAc and MeOH as eluents.

Step B

The product of Step A was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq. LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure and the residue was purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

General Procedure (XIIIb) Step A

1 eq. phenol derivative, 2 eq. of the appropriate alcohol and 2 eq. PPh3 were dissolved in dry toluene (0.2 M for the phenol), then 2 eq. ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using EtOAc and MeOH as eluents.

Step B

The product of Step A was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq. LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with

DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure and the residue was purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

General Procedure (XIIIc)

1 eq. ester was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq. LiOH×H2O was added and the mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. If necessary the product was purified via preparative reversed phase chromatography using MeCN and 25 mM aqueous NH4HCO3 solution as eluents.

Example 465 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(1-methylpiperidin-4-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XIIIa) and 2-(1-methyl-4-piperidyl)ethanol as the appropriate alcohol, Example 465 was obtained. HRMS calculated for C34H36ClN3O5S: 633.2064; found 634.2136 (M+H).

Example 466 (2R)-2-{[(5Sa)-5-(3-chloro-4-{12-[di(propan-2-yl)amino]ethoxy}-2-methylphenyl)-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XIIIa) and 2-(diisopropylamino)ethanol as the appropriate alcohol, Example 466 was obtained. HRMS calculated for C34H38ClN3O5S: 635.2221; found 636.2310 (M+H).

Example 467 (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XIIIa) and 2-(dimethylamino)ethanol as the appropriate alcohol, Example 467 was obtained. HRMS calculated for C30H30ClN3O5S: 579.1595; found 580.1663 (M+H).

Example 468 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(pyrrolidin-1-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XIIIa) and 2-pyrrolidin-1-ylethanol as the appropriate alcohol, Example 468 was obtained. HRMS calculated for C32H32ClN3O5S: 605.1751; found 606.1822 (M+H).

Example 469 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(piperidin-1-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XIIIa) and 2-(1-piperidyl)ethanol as the appropriate alcohol, Example 469 was obtained. HRMS calculated for C33H34ClN3O5S: 619.1908; found 620.2011 (M+H).

Example 470 (2R)-2-{[(5Ra)-5-(3-chloro-5-fluoro-4-methoxy-2-methylphenyl)-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid and Example 471 (2R)-2-{[(5Sa)-5-(3-chloro-5-fluoro-4-methoxy-2-methylphenyl)-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

522 mg ethyl (2R)-2-(5-iodo-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl)oxy-3-(2-methoxyphenyl)propanoate (Preparation 4k) (1.00 mmol), 451 mg 2-(3-chloro-5-fluoro-4-methoxy-2-methyl-phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (Preparation 5i) (1.50 mmol), 73 mg PdCl2×dppf (0.10 mmol) and 652 mg Cs2CO3 (2.00 mmol) were dissolved in 10 mL dioxane and 2.5 mL water, and heated under nitrogen at 110° C. for 10 minutes in a microwave reactor. Then reaction mixture was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure and the residue was purified via flash chromatography, using heptane and EtOAc as eluents, then it was hydrolyzed according to General Procedure (XIIIc). The diastereoisomer eluting earlier was collected as Example 470. HRMS calculated for C27H22ClFN2O5S: 540.0922; found 541.0987 (M+H). The diastereoisomer eluting later was collected as Example 471. HRMS calculated for C27H22ClFN2O5S: 540.0922; found 541.1009 (M+H).

Example 472 (2R)-2-(1 (5Ra)-5-[3-chloro-4-methoxy-2-methyl-5-(4-methylpiperazin-1-yl)phenyl]-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl}oxy)-3-(2-methoxyphenyl)propanoic Acid and Example 473 (2R)-2-(1 (5Sa)-5-[3-chloro-4-methoxy-2-methyl-5-(4-methylpiperazin-1-yl)phenyl]-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl}oxy)-3-(2-methoxyphenyl)propanoic Acid

418 mg ethyl (2R)-2-(5-iodo-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl)oxy-3-(2-methoxyphenyl)propanoate (Preparation 4k) (0.80 mmol), 381 mg 1-[3-chloro-2-methoxy-4-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-4-methyl-piperazine (Preparation 5j) (1.00 mmol), 58 mg PdCl2×dppf (0.08 mmol) and 391 mg Cs2CO3 (1.20 mmol) were dissolved in 10 mL dioxane and 2 mL water and was heated under nitrogen at 110° C. for 10 minutes in a microwave reactor. Then reaction mixture was diluted with brine, and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure and the residue was purified via flash chromatography, using heptane and EtOAc as eluents, then it was hydrolyzed according to General Procedure (XIIIc). The diastereoisomer eluting earlier was collected as Example 472. HRMS calculated for C32H33ClN4O5S: 620.1860; found 621.1929 (M+H). The diastereoisomer eluting later was collected as Example 473. HRMS calculated for C32H33ClN4O5S: 620.1860; found 621.1929 (M+H).

Example 474 (2R)-2-{[(5Ra)-5-{3-chloro-2,5-dimethyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid and Example 475 (2R)-2-{[(5Sa)-5-{3-chloro-2,5-dimethyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XIIIb), diastereoisomer mixture of ethyl (2R)-2-[5-(3-chloro-4-hydroxy-2,5-dimethyl-phenyl)-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (Preparation 18b) as the phenol and 2-(4-methylpiperazin-1-yl)ethanol as the appropriate alcohol Example 474 and Example 475 were obtained. The diastereoisomer eluting earlier was collected as Example 474. HRMS calculated for C34H37ClN4O5S: 648.2173; found 649.2252 (M+H). The diastereoisomer eluting later was collected as Example 475. HRMS calculated for C34H37ClN4O5S: 648.2173; found 649.2251 (M+H).

Example 476 (2R)-2-{[(5Sa)-5-{3-chloro-5-fluoro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XIIIb), ethyl (2R)-2-[(5Sa)-5-(3-chloro-5-fluoro-4-hydroxy-2-methyl-phenyl)-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl) propanoate (Preparation 18c) as the phenol and 2-(4-methylpiperazin-1-yl)ethanol as the appropriate alcohol Example 476 was obtained. HRMS calculated for C33H34ClFN4O5S: 652.1922; found 653.2005 (M+H).

Example 477 (2R)-2-{[(5Sa)-5-{3-chloro-5-methoxy-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

To 57 mg ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-5-methoxy-2-methyl-phenyl)-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (Preparation 18a) (0.10 mmol), 29 mg 2-(4-methylpiperazin-1-yl)ethanol (0.20 mmol) and 100 mg immobilized PPh3 (0.30 mmol) 1 mL dry toluene was added followed by 52 mg 3-(dimethylcarbamoylimino)-1,1-dimethyl-urea (0.30 mmol). The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. Then the mixture was filtered, the filtrate was concentrated under reduced pressure and the residue was purified via flash chromatography using EtOAc and MeOH as eluents. The obtained intermediate was hydrolyzed according to General Procedure (XIIIc) to give Example 477. HRMS calculated for C34H37ClN4O6S: 664.2122; found 665.2200 (M+H).

Example 478 (2R)-2-{[(5Ra)-5-{3-chloro-4-[3-(dimethylamino)propyl]-2-methylphenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid and Example 479 (2R)-2-{[(5Sa)-5-{3-chloro-4-[3-(dimethylamino)propyl]-2-methylphenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

522 mg ethyl (2R)-2-(5-iodo-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl)oxy-3-(2-methoxyphenyl)propanoate (Preparation 4k) (1.00 mmol), 1.30 mmol 3-[2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-N,N-dimethyl-propan-1-amine (Preparation 5n), 71 mg AtaPhos (0.10 mmol) and 652 mg Cs2CO3 (2.00 mmol) were dissolved in 8 mL dioxane and 2 mL water, and heated under nitrogen at 100° C. for 15 minutes in a microwave reactor. The reaction mixture was diluted with brine and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure and the residue was purified via flash chromatography, using EtOAc and MeOH as eluents. The obtained intermediate was hydrolyzed according to General Procedure (XIIIc). The diastereoisomer eluting earlier was collected as Example 478. HRMS calculated for C31H32ClN3O4S: 577.1802; found 578.1876 (M+H). The diastereoisomer eluting later was collected as Example 479. HRMS calculated for C31H32ClN3O4S: 577.1802; found 578.1881 (M+H).

Example 480 (2R)-2-{[(5Sa)-5-(3-chloro-4-hydroxy-2-methylphenyl)-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (Preparation 6l) was hydrolyzed according to General Procedure (XIIIc) to give Example 480. HRMS calculated for C26H21ClN2O5S: 508.0860; found 509.0940 (M+H).

General Procedure (XIVa) Step A

1 eq. ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (Preparation 8i), 2 eq. of the appropriate alcohol and 2 eq. triphenyl phosphine were dissolved in abs. toluene (0.2 M for the phenol), then 2 eq. ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using EtOAc and MeOH as eluents.

Step B

The product of Step A was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq. LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure and the residue was purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

Example 481 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-ethoxyphenyl)propanoic Acid

Using General Procedure (XIVa) and ethanol as the appropriate alcohol, Example 481 was obtained. HRMS calculated for C34H37ClN4O5S: 648.2173; found 649.2249 (M+H).

Example 482 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (XIVa) and [2-(2-methoxyphenyl)pyrimidin-4-yl]methanol (Preparation 9bp) as the appropriate alcohol, Example 482 was obtained. HRMS calculated for C44H43ClN6O6S: 818.2653; found 410.1394 (M+2H).

Example 483 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(3-methylpyridin-4-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid Step A

1.30 g ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (Preparation 8i) (2.0 mmol), 0.94 g (2-methylsulfanylpyrimidin-4-yl)methanol (Preparation 9aa) (6.0 mmol) and 1.57 g PPh3 (6.0 mmol) were dissolved in 40 mL dry toluene, then 1.38 g di-tert-butyl azodicarboxylate (6.0 mmol) was added. The mixture was stirred at 50° C. under nitrogen. If needed, the addition of (2-methylsulfanylpyrimidin-4-yl)methanol (Preparation 9aa) (6.0 mmol), PPh3 (6.0 mmol) and ditertbutyl azodicarboxylate (6.0 mmol) can be repeated. When no further conversion was observed the volatiles were evaporated and the residue was purified via flash chromatography using DCM and MeOH as eluents, to obtain ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(2-methylsulfanylpyrimidin-4-yl)methoxy]phenyl]propanoate. HRMS calculated for C40H43ClN6O5S2: 787.2498; found 787.2464 (M+H).

Step B

0.572 g ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(2-methylsulfanylpyrimidin-4-yl)methoxy]phenyl]propanoate (0.44 mmol), 0.179 g (3-methyl-4-pyridyl)boronic acid (1.31 mmol), 0.25 g copper(I) thiophene-2-carboxylate (1.31 mmol) and 51 mg Pd(PPh3)4 were dissolved in 5 mL dry THF heated under nitrogen at 70° C. If needed, the addition of reagents was repeated. When no further conversion was observed, the volatiles were evaporated and the residue was purified via flash chromatography using DCM and MeOH as eluents.

Step C

The product of Step B was dissolved in 5 mL dioxane-water 1:1 and 10 eq. LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure and the residue was purified via preparative reverse phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to furnish Example 483. HRMS calculated for C43H42ClN7O5S: 803.2657; found 402.6401 (M+2H).

Example 484 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxyl phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxyethyl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (XIVa) and [2-(2-methoxyethyl)pyrimidin-4-yl]methanol (Preparation 9bl) as the appropriate alcohol, Example 484 was obtained. HRMS calculated for C40H43ClN6O6S: 770.2653; found 386.1410 (M+2H).

Example 485 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxyl phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(morpholin-4-yl)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (XIVa) and (2-(morpholin-4-yl)pyrimidin-4-yl)methanol (Preparation 9ar) as the appropriate alcohol, Example 485 was obtained. HRMS calculated for C41H44ClN7O6S: 797.2762; found 399.6446 (M+2H).

Example 486 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-methoxypyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (XIVa) and (2-methoxypyrimidin-4-yl)methanol as the appropriate alcohol, Example 486 was obtained. HRMS calculated for C38H39ClN6O6S: 742.2340; found 743.2424 (M+H).

Example 487 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2,2,2-trifluoroethoxy)pyrimidin-4-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (XIVa) and [2-(2,2,2-trifluoroethoxy)pyrimidin-4-yl]methanol (Preparation 9ai) as the appropriate alcohol, Example 487 was obtained. HRMS calculated for C39H38ClF3N6O6S: 810.2214; found 811.2323 (M+H).

Example 488 (2R)-3-{2-[(1-tert-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (XIVa) and (1-tert-butyl-1H-pyrazol-5-yl)methanol (Preparation 9dt) as the appropriate alcohol, Example 488 was obtained. HRMS calculated for C40H45ClN6O5S: 756.2861; found 379.1485 (M+2H).

Example 489 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(2,2,2-trifluoroethyl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoic Acid

Using General Procedure (XIVa) and [1(2,2,2-trifluoroethyl)-1H-pyrazol-5-yl]methanol (Preparation 9du) as the appropriate alcohol, Example 489 was obtained. HRMS calculated for C38H38ClF3N6O5S: 782.2265; found 783.2353 (M+H).

Example 490 (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (XIVa) and (1-butyl-1H-pyrazol-5-yl)methanol (Preparation 9dd) as the appropriate alcohol, Example 490 was obtained. HRMS calculated for C40H45ClN6O5S: 756.2861; found 757.2953 (M+H).

Example 491 (2S)-3-(1-benzofuran-4-yl)-2-{[(5Ra)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid Step A

0.137 g ethyl (25)-3-(benzofuran-4-yl)-2-[(5Ra)5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate (Preparation 20b) (0.25 mmol), 0.072 g 2-(4-methylpiperazin-1-yl)ethanol (0.5 mmol) and 0.166 g PPh3 (0.5 mmol) were dissolved in 4 mL dry toluene and 0.115 g ditertbutyl azodicarboxylate (0.5 mmol) was added and it was heated at 50° C. If needed, the addition of reagents can be repeated. When no further conversion was observed the volatiles were evaporated under reduced pressure and the residue was purified via flash chromatography using EtOAc and MeOH as eluents.

Step B

The product of Step A was dissolved in 10 mL dioxane-water 1:1 and 0.200 g LiOH×H2O (5.88 mmol) was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure and the residue was purified via preparative reverse phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to furnish Example 491. HRMS calculated for C34H33ClN4O5S: 644.1860; found 645.1934 (M+H).

Example 492 (2R)-3-(1-benzofuran-4-yl)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid Step A

0.137 g ethyl (2R)-3-(benzofuran-4-yl)-2-[(5Sa)5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate (Preparation 20a) (0.25 mmol), 0.072 g 2-(4-methylpiperazin-1-yl)ethanol (0.5 mmol) and 0.166 g PPh3 (0.5 mmol) were dissolved in 4 mL dry toluene and 0.115 g ditertbutyl azodicarboxylate (0.5 mmol) was added and it was heated at 50° C. If needed, the addition of reagents can be repeated. When no further conversion was observed the volatiles were evaporated under reduced pressure and the residue was purified via flash chromatography using EtOAc and MeOH as eluents.

Step B

The product of Step A was dissolved in 10 mL dioxane-water 1:1 and 0.200 g LiOH×H2O (5.88 mmol) was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure and the residue was purified via preparative reverse phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to furnish Example 492. HRMS calculated for C34H33ClN4O5S: 644.1860; found 645.1935 (M+H).

General Procedure (XVa) Step A

1 eq. methyl (2R)-2-[6-bromo-(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)thieno[2,3-d[pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 22), 2.5 eq. of the appropriate boronic ester or boronic acid and 2.5 eq. Cs2CO3 were dissolved in THF-water (4:1) (12.5 ml/mmol of Preparation 22), then 0.1 eq Pd(dppf)Cl2 was added. The mixture was heated under nitrogen at 110° C. in a microwave reactor until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure and the residue was purified via flash chromatography using heptane and ethyl acetate as eluents.

Step B

1 eq. of the product of Step A, 2 eq. 2-(4-methylpiperazin-1-yl)ethanol and 2 eq. PPh3 were dissolved in dry toluene (5 mL/mmol of the product of Step A), then 2 eq. ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using ethyl acetate and methanol as eluents.

Step C

The product of Step B was dissolved in dioxane-water 1:1 (10 mL/mmol product of Step B) and 10 eq. LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure and the residue was purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

General Procedure (XVb) Step A

1 eq. phenol derivative, 2 eq. 2-(4-methylpiperazin-1-yl)ethanol and 2 eq. triphenyl phosphine were dissolved in dry toluene (5 mL/mmol of phenol), then 2 eq. ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using ethyl acetate and methanol as eluents.

Step B

The product of Step A was dissolved in dioxane-water 1:1 (10 mL/mmol product of Step A) and 10 eq. LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure and the residue was purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

Example 493 (2R)-2-[(6-[(1Z)-but-1-en-1-yl]-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

8.45 g 4-chloro-5,6-diiodo-thieno[2,3-d]pyrimidine (Preparation 1b) (20 mmol), 5.41 g methyl (2R)-2-hydroxy-3-phenyl-propanoate (Preparation 3ag) (30 mmol) and 13.03 g Cs2CO3 (40 mmol) were placed in a flask. 20 mL DMSO was added and the mixture was stirred at 60° C. until no further conversion was observed. It was diluted with water, the pH was set to 5 with 2 M HCl, and then it was extracted with dichloromethane. The combined organic layers were dried over Na2SO4, concentrated under reduced pressure, and purified via flash chromatography using heptane and ethyl acetate as eluents to obtain methyl (2R)-2-(5,6-diiodothieno[2,3-d]pyrimidin-4-yl)oxy-3-phenyl-propanoate. 1H NMR (400 MHz, DMSO-d6): 8.49 (s, 1H), 7.42 (m, 2H), 7.30 (m, 2H), 7.25 (m, 1H), 5.78 (dd, 1H), 3.75 (s, 3H), 3.50-3.35 (m, 2H).

Step B

230 mg methyl (2R)-2-(5,6-diiodothieno[2,3-d]pyrimidin-4-yl)oxy-3-phenyl-propanoate (0.4 mmol), 14 mg Pd(PPh3)2C1 (0.02 mmol) and 4 mg CuI (0.02 mmol) were dissolved in 3 mL DIPA, then but-1-yne was bubbled through the reaction mixture, which was stirred at 30° C. until no further conversion was observed. The reaction mixture was concentrated under reduced pressure and purified via flash chromatography using heptane and ethyl acetate as eluents to obtain methyl (2R)-2-(6-but-1-ynyl-5-iodo-thieno[2,3-d[pyrimidin-4-yl)oxy-3-phenyl-propanoate. 1H NMR (400 MHz, CDCl3): 8.52 (s, 1H), 7.43 (m, 2H), 7.29 (m, 2H), 7.22 (m, 1H), 5.76 (dd, 1H), 3.73 (s, 3H), 3.49-3.35 (m, 2H), 2.54 (q, 2H), 1.31 (t, 3H).

Step C

189 mg methyl (2R)-2-(6-but-1-ynyl-5-iodo-thieno[2,3-d]pyrimidin-4-yl)oxy-3-phenyl-propanoate (0.383 mmol) and 155 mg 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (0.6 mmol) were dissolved in 3 mL 2-methyl-tetrahydrofurane, 600 μL tetrabutyl ammonium hydroxyde (1M in water, 0.6 mmol) was added. Then 27 mg AtaPhos (0.038 mmol) was added and the reaction mixture was heated under nitrogen at 110° C. in a microwave reactor until no further conversion was observed. Then reaction mixture was diluted with dichloromethane and brine, the pH was set to 5 with 2 M HCl, and extracted with dichloromethane. The combined organic layers were dried over Na2SO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and ethyl acetate as eluents. The diastereoisomer eluting later was collected as methyl (2R)-2-[6-but-1-ynyl-(5Sa)-5-(2-chloro-4-hydroxy-3-methyl-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate. MS: (M+H)=507.0.

Step D

50 mg methyl (2R)-2-[6-but-1-ynyl-(5Sa)-5-(2-chloro-4-hydroxy-3-methyl-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (0.1 mmol) and 2 mg Pd/BaCO3 (5 m/m %) (0.001 mmol) was dissolved in 10 mL methanol. Then 2.5 mL H2 was added and the reaction mixture was stirred at room temperature until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN to obtain methyl (2R)-2-[6-[(1Z)-but-1-enyl]-(5Sa)-5-(2-chloro-4-hydroxy-3-methyl-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate. 1H NMR (500 MHz, DMSO-d6): 10.35 (br s, 1H), 8.54 (s, 1H), 7.15 (m, 3H), 7.07 (d, 1H), 7.01 (d, 1H), 6.65 (m, 2H), 6.31 (dt, 1H), 6.14 (d, 1H), 5.44 (dd, 1H), 3.56 (s, 3H), 2.95 (dd, 1H), 2.65 (dd, 1H), 2.16 (g, 2H), 2.00 (s, 3H), 0.96 (t, 3H). HRMS: (M+H)=509.1324.

Step E

20 mg methyl (2R)-2-[6-[(1Z)-but-1-enyl]-(5Sa)-5-(2-chloro-4-hydroxy-3-methyl-phenyl) thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (0.039 mmol), 12 mg 2-(4-methylpiperazin-1-yl)ethanol (0.08 mmol) and 26 mg triphenyl phosphine (0.08 mmol) were dissolved in 3 mL dry toluene, then 18 mg ditertbutyl azodicarboxylate (0.08 mmol) was added. The mixture was stirred at 40° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the residue was purified via flash chromatography using ethyl acetate and methanol as eluents.

Step F

The product of Step E was dissolved in 1 mL dioxane-water (1:1) and 17 mg LiOH×H2O (0.4 mmol) was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure, and the residue was purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Example 493. HRMS calculated for C33H37ClN4O4S: 620.2224; found (M+H).

Example 494 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(2-methylprop-1-en-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XVa) and 4,4,5,5-tetramethyl-2-(2-methylprop-1-enyl)-1,3,2-dioxaborolane as the appropriate boronic ester, Example 494 was obtained. HRMS calculated for C33H37ClN4O4S: 620.2224; found 621.2287 (M+H).

Example 495 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-methylthiophen-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XVa) and 4,4,5,5-tetramethyl-2-(4-methyl-2-thienyl)-1,3,2-dioxaborolane as the appropriate boronic ester, Example 495 was obtained. HRMS calculated for C34H35ClN4O4S2: 662.1788; found 663.1884 (M+H).

Example 496 (2R)-2-{[6-(1-benzofuran-2-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XVa) and 2-(benzofuran-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic ester, Example 496 was obtained. HRMS calculated for C37H35ClN4O5S: 682.2017; found 683.2084 (M+H).

Example 497 (2R)-2-{[6-(1-benzothiophen-2-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XVa) and 2-(benzothiophen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic ester, Example 497 was obtained. HRMS calculated for C37H35ClN4O4S2: 698.1788; found 699.1879 (M+H).

Example 498 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy[phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XVa) and 2-(4-fluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic ester, Example 498 was obtained. HRMS calculated for C35H34ClFN4O4S: 660.1973; found 661.2042 (M+H).

Example 499 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-methylfuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XVa) and 4,4,5,5-tetramethyl-2-(5-methyl-2-furyl)-1,3,2-dioxaborolane as the appropriate boronic ester, Example 499 was obtained. HRMS calculated for C34H35ClN4O5S: 646.2017; found 647.2091 (M+H).

Example 500 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxyl phenyl}-6-(5-methylthiophen-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XVa) and 4,4,5,5-tetramethyl-2-(5-methyl-2-thienyl)-1,3,2-dioxaborolane as the appropriate boronic ester, Example 500 was obtained. HRMS calculated for C34H35ClN4O4S2: 662.1788; found 663.1874 (M+H).

Example 501 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxyl phenyl}-6-(5-chlorothiophen-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XVa) and (5-chloro-2-thienyl)boronic acid as the appropriate boronic acid, Example 501 was obtained. HRMS calculated for C33H32Cl2N4O4S2: 682.1242; found 683.1308 (M+H).

Example 502 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-phenylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

Using General Procedure (XVa) and 4,4,5,5-tetramethyl-2-phenyl-1,3,2-dioxaborolane as the appropriate boronic ester, Example 502 was obtained. HRMS calculated for C35H35ClN4O4S: 642.2068; found 643.2135 (M+H).

Example 503 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy[phenyl}-6-(1-methyl-1H-pyrrol-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XVa) and 1-methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrrole as the appropriate boronic ester, Example 503 was obtained. HRMS calculated for C34H36ClN5O4S: 645.2177; found 646.2222 (M+H).

Example 504 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XVa) and 2-(2-furyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic ester, Example 504 was obtained. HRMS calculated for C33H33ClN4O5S: 632.186; found 633.1939 (M+H).

Example 505 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(thiophen-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XVa) and 2-thienylboronic acid as the appropriate boronic acid, Example 505 was obtained. HRMS calculated for C33H33ClN4O4S2: 648.1632; found 649.172 (M+H).

Example 506 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy[phenyl}-6-(1-methyl-1H-pyrazol-3-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XVa) and 1-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole as the appropriate boronic ester, Example 506 was obtained. HRMS calculated for C33H35ClN6O4S: 646.2129; found 647.2195 (M+H).

Example 507 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(pyridin-4-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XVa) and 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine as the appropriate boronic ester, Example 507 was obtained. HRMS calculated for C34H34ClN5O4S: 643.202; found 644.2089 (M+H).

Example 508 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxyl phenyl}-6-(1-methyl-1H-pyrazol-5-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XVa) and 1-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole as the appropriate boronic ester, Example 508 was obtained. HRMS calculated for C33H35ClN6O4S: 646.2129; found 647.222 (M+H).

Example 509 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-3-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XVa) and 2-(3-furyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic ester Example 509 was obtained. HRMS calculated for C33H33ClN4O5S: 632.186; found 633.196 (M+H).

Example 510 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy[phenyl}-6-(thiophen-3-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XVa) and 4,4,5,5-tetramethyl-2-(3-thienyl)-1,3,2-dioxaborolane as the appropriate boronic ester, Example 510 was obtained. HRMS calculated for C33H33ClN4O4S2: 648.1632; found 649.1711 (M+H).

Example 511 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(2-methylthiophen-3-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XVa) and 4,4,5,5-tetramethyl-2-(2-methyl-3-thienyl)-1,3,2-dioxaborolane as the appropriate boronic ester, Example 511 was obtained. HRMS calculated for C34H35ClN4O4S2: 662.1788; found 663.1864 (M+H).

Example 512 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(1,3-thiazol-5-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XVa) and 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3-thiazole as the appropriate boronic ester, Example 512 was obtained. HRMS calculated for C32H32ClN5O4S2: 649.1584; found 650.1654 (M+H).

Example 513 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(1-methyl-1H-pyrazol-4-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XVa) and 1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole as the appropriate boronic ester, Example 513 was obtained. HRMS calculated for C33H35ClN6O4S: 646.2129; found 647.2199 (M+H).

Example 514 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy[phenyl}-6-(5-methylthiophen-3-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid Step A

531 mg 4-bromo-2-methyl-thiophene (3.0 mmol), 813 mg 2-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)-5,5-dimethyl-1,3,2-dioxaborinane (3.6 mmol) and 883 mg KOAc (9.0 mmol) were dissolved in 15 mL 1,4-dioxane, then 219 mg Pd(dppf)Cl2 (0.3 mmol) was added. The mixture was heated under nitrogen at 120° C. in a microwave reactor until no further conversion was observed. The volatiles were evaporated under reduced pressure and purified via flash chromatography using heptane and ethyl acetate as eluents to obtain 5,5-dimethyl-2-(5-methyl-3-thienyl)-1,3,2-dioxaborinane. 1H NMR (500 MHz, CDCl3): 7.59 (d, 1H), 7.00 (dd, 1H), 3.73 (s, 4H), 2.49 (d, 3H), 1.02 (s, 6H).

Step B

Using General Procedure (XVa) and 5,5-dimethyl-2-(5-methyl-3-thienyl)-1,3,2-dioxaborinane as the appropriate boronic ester, Example 514 was obtained. HRMS calculated for C34H35ClN4O4S2: 662.1788; found 663.1884 (M+H).

Example 515 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(2-methyl-1,3-thiazol-4-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XVa) and 2-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3-thiazole as the appropriate boronic ester, Example 515 was obtained. HRMS calculated for C33H34ClN5O4S2: 663.1741; found 664.1823 (M+H).

Example 516 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-methylthiophen-3-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XVa) and 4,4,5,5-tetramethyl-2-(4-methyl-3-thienyl)-1,3,2-dioxaborolane as the appropriate boronic ester, Example 516 was obtained. HRMS calculated for C34H35ClN4O4S2: 662.1788; found 663.1863 (M+H).

Example 517 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(3-methylthiophen-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid

Using General Procedure (XVa) and 4,4,5,5-tetramethyl-2-(3-methyl-2-thienyl)-1,3,2-dioxaborolane as the appropriate boronic ester, Example 517 was obtained. HRMS calculated for C34H35ClN4O4S2: 662.1788; found 663.1882 (M+H).

Example 518 (2R)-2-[(6-bromo-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid Step A

180 mg methyl (2R)-2-[6-bromo-(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (Preparation 22) (0.335 mmol), 96 mg 2-(4-methylpiperazin-1-yl)ethanol (0.672 mmol) and 177 mg PPh3 (0.672 mmol) were dissolved in 6 mL dry toluene, then 145 mg ditertbutyl azodicarboxylate (0.672 mmol) was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the residue was purified via flash chromatography using ethyl acetate and methanol as eluents.

Step B

The product of Step A was dissolved in 5 ml methanol and 50 mg NaOH (1.25 mmol) was added. The mixture was stirred at 50° C. until no further conversion was observed. It was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic layers were dried over Na2SO4, concentrated under reduced pressure, and the residue was purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Example 518. HRMS calculated for C29H30BrClN4O4S: 644.086; found 645.0942 (M+H).

Example 519 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid Step A

8.45 g 4-chloro-5,6-diiodo-thieno[2,3-d]pyrimidine (Preparation 1b) (20 mmol), 5.41 g methyl (2R)-2-hydroxy-3-phenyl-propanoate (Preparation 3ag) (30 mmol) and 13.03 g Cs2CO3 (40 mmol) were placed in a flask. 20 mL DMSO was added and the mixture was stirred at 60° C. until no further conversion was observed. The reaction mixture was diluted with water, the pH was set to 5 with 2 M HCl, and then it was extracted with dichloromethane. The combined organic layers were dried over Na2SO4, concentrated under reduced pressure, and the residue was purified via flash chromatography using heptane and ethyl acetate as eluents to obtain methyl (2R)-2-(5,6-diiodothieno[2,3-d]pyrimidin-4-yl)oxy-3-phenyl-propanoate. 1H NMR (400 MHz, DMSO-d6): 8.49 (s, 1H), 7.42 (m, 2H), 7.30 (m, 2H), 7.25 (m, 1H), 5.78 (dd, 1H), 3.75 (s, 3H), 3.50-3.35 (m, 2H).

Step B

1.132 g methyl (2R)-2-(5,6-diiodothieno[2,3-d]pyrimidin-4-yl)oxy-3-phenyl-propanoate (2 mmol), 70 mg Pd(PPh3)2C1 (0.1 mmol) and 38 mg CuI (0.2 mmol) were dissolved in 10 mL DIPA, then propyne was bubbled through the reaction mixture, which was stirred at 45° C. until no further conversion was observed. It was concentrated under reduced pressure and purified via flash chromatography using heptane and ethyl acetate as eluents to obtain methyl (2R)-2-(5-iodo-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl)oxy-3-phenyl-propanoate. MS: (M+H)=479.0.

Step C

469 mg methyl (2R)-2-(5-iodo-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl)oxy-3-phenyl-propanoate (0.98 mmol) and 537 mg 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (2.0 mmol) were dissolved in 10 mL 1,4-dioxane, then 815 mg Cs2CO3 (2.5 mmol) dissolved in 2 mL water was added followed by 71 mg AtaPhos (0.1 mmol) and the mixture was heated under nitrogen at 110° C. in a microwave reactor until no further conversion was observed. After dilution with dichloromethane and brine the pH was set to 5 with 2 M HCl and the aqueous phase was extracted with dichloromethane. The combined organic layers were dried over Na2SO4, concentrated under reduced pressure. The diastereoisomers were separated via flash chromatography using heptane and ethyl acetate as eluents. The diastereoisomer eluting later was collected as methyl (2R)-2-[(5Sa)-5-(2-chloro-4-hydroxy-3-methyl-phenyl)-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate. MS: (M+H)=493.0.

Step D

360 mg methyl (2R)-2-[(5Sa)-5-(2-chloro-4-hydroxy-3-methyl-phenyl)-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (0.73 mmol), 211 mg 2-(4-methylpiperazin-1-yl)ethanol (1.46 mmol) and 487 mg triphenyl phosphine (1.46 mmol) were dissolved in 5 mL dry toluene, then 336 mg ditertbutyl azodicarboxylate (1.46 mmol) was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using ethyl acetate and methanol as eluents.

Step E

The product of Step D was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq. LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic layers were dried over Na2SO4, concentrated under reduced pressure, and the residue was purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Example 519.

HRMS calculated for C32H33ClN4O4S: 604.1911; found 605.2 (M+H).

Example 520 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(cyclopropylethynyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-phenylpropanoic Acid Step A

1.132 g methyl (2R)-2-(5,6-diiodothieno[2,3-d]pyrimidin-4-yl)oxy-3-phenyl-propanoate (from Step A of Example 519, 2 mmol), 152 mg ethynylcyclopropane (2.3 mmol), 70 mg Pd(PPh3)2C1 (0.1 mmol) and 38 mg CuI (0.2 mmol) were dissolved in 4 mL DIPA and the mixture was stirred under nitrogen at 40° C. until no further conversion was observed. The reaction was concentrated under reduced pressure and purified via flash chromatography using heptane and ethyl acetate as eluents to obtain methyl (2R)-2-[6-(2-cyclopropylethynyl)-5-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate. MS: (M+H)=505.0.

Step B

968 mg methyl (2R)-2-[6-(2-cyclopropylethynyl)-5-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (1.92 mmol) and 670 mg 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (2.5 mmol) were dissolved in 8 mL 2-methyl-tetrahydrofurane and 2.5 mL tetrabutylammonium hydroxyde (1M in water, 2.5 mmol) was added followed by 68 mg AtaPhos (0.096 mmol). The mixture was heated under nitrogen at 110° C. in a microwave reactor until no further conversion was observed. Then it was diluted with dichloromethane and brine, the pH was set to 5 with 2 M HCl and the aqueous phase was extracted with dichloromethane. The combined organic layers were dried over Na2SO4, concentrated under reduced pressure. The diastereoisomers were separated via flash chromatography using heptane and ethyl acetate as eluents. The diastereoisomer eluting later was collected as methyl (2R)-2-[(5Sa)-5-(2-chloro-4-hydroxy-3-methyl-phenyl)-6-(2-cyclopropylethynyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate. MS: (M+H)=519.0.

Step C

156 mg methyl (2R)-2-[(5Sa)-5-(2-chloro-4-hydroxy-3-methyl-phenyl)-6-(2-cyclopropylethynyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate (0.3 mmol), 87 mg 2-(4-methylpiperazin-1-yl)ethanol (0.6 mmol) and 158 mg triphenyl phosphine (0.6 mmol) were dissolved in 3 mL dry toluene, then 138 mg ditertbutyl azodicarboxylate (0.6 mmol) was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using ethyl acetate and methanol as eluents.

Step D

The product of Step C was dissolved in 5 mL methanol and 200 mg LiOH×H2O (4.76 mmol) was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, extracted with DCM, dried over Na2SO4, filtered and concentrated under reduced pressure and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Example 520. HRMS calculated for C34H35ClN4O4S: 630.2068; found 631.2096 (M+H).

Example 521 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-cyanothieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid Step A

935 mg [2-chloro-4-(4-chlorothieno[2,3-d]pyrimidin-5-yl)-3-methyl-phenoxy]-triisopropyl-silane (Preparation 23a) (2.0 mmol) was dissolved in 20 mL dry THF then cooled to −78° C. under argon atmosphere. 1.2 mL lithium diisopropylamide (2.4 mmol, 2 M in THF, EtPh, hexanes) was added and the mixture was stirred at −78° C. for 1 hour. Then 471 mg p-tolylsulfonylformonitrile (2.6 mmol) was added and the mixture was allowed to warm up to room temperature. To the reaction mixture saturated aq. NH4Cl was added and then extracted with ethyl acetate. Organic layer was dried over Mg2SO4, filtered and concentrated under reduced pressure. The crude intermediate was purified via flash chromatography using heptane and ethyl acetate as eluents to obtain 4-chloro-5-(3-chloro-2-methyl-4-triisopropylsilyloxy-phenyl)thieno[2,3-d]pyrimidine-6-carbonitrile.

1H NMR (400 MHz, DMSO-d6): 9.16 (s, 1H), 7.26 (d, 1H), 7.03 (d, 1H), 2.10 (s, 3H), 1.42-1.30 (m, 3H), 1.10 (dd, 18H).

Step B

380 mg 4-chloro-5-(3-chloro-2-methyl-4-triisopropylsilyloxy-phenyl)thieno[2,3-d]pyrimidine-6-carbonitrile (0.77 mmol) was dissolved in 7 mL iPrOH, 166 mg methyl (2R)-2-hydroxy-3-phenyl-propanoate (Preparation 3ag) (0.92 mmol) and 753 mg Cs2CO3 (2.31 mmol) was added and the mixture was stirred at room temperature until no further conversion was observed. It was diluted with water, the pH of the mixture was set to 4 with 2 M HCl, and extracted with DCM. The combined organic layers were dried over Na2SO4, concentrated under reduced pressure, and the residue was purified via flash chromatography using heptane and ethyl acetate as eluents.

Step C

The product of Step B was dissolved in 10 mL THF, 0.8 mL TBAF (1M in THF) (0.8 mmol) was added and the mixture was stirred until no further conversion was observed. Then it was diluted with ethyl acetate, washed with water and brine. The organic layer was dried over Na2SO4, filtered and concentrated under reduced pressure and purified via flash chromatography using heptane and ethyl acetate as eluents. The diastereoisomer eluting later was collected to obtain methyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-cyano-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate. MS: (M+H)=480.0.

Step D

Using General Procedure (XVb) and methyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-cyano-thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate as the appropriate phenol Example 521 was obtained. HRMS calculated for C30H30ClN5O4S: 591.1707; found 592.1786 (M+H).

Example 522 (2R)-2-[(6-acetyl-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy[phenyl}thieno[2,3-d]pyrimidin-4-yl)oxy]-3-phenylpropanoic Acid

935 mg [2-chloro-4-(4-chlorothieno[2,3-d]pyrimidin-5-yl)-3-methyl-phenoxy]-triisopropyl-silane (Preparation 23a) (2.0 mmol) was dissolved in 20 mL dry THF then cooled to −78° C. under argon atmosphere. 1.2 mL lithium diisopropylamide (2.4 mmol, 2 M in THF, EtPh, hexanes) was added and the mixture was stirred at −78° C. for 1 hour. Then 265 mg acetic anhydride (2.6 mmol) was added and the mixture was allowed to warm up to room temperature. To the reaction mixture saturated NH4Cl was added and then extracted with ethyl acetate. The combined organic layers were dried over Na2SO4, concentrated under reduced pressure, and the residue purified via flash chromatography, using heptane and EtOAc as eluents to obtain 1-[4-chloro-5-(3-chloro-2-methyl-4-triisopropylsilyloxy-phenyl)thieno[2,3-d]pyrimidin-6-yl]ethanone. 1H NMR (400 MHz, CDCl3): 8.94 (s, 1H), 6.98 (d, 1H), 6.95 (d, 1H), 2.17 (s, 1H), 2.03 (s, 1H), 1.44-1.32 (m, 3H), 1.17 (d, 18H).

Step B

278 mg 1-[4-chloro-5-(3-chloro-2-methyl-4-triisopropylsilyloxy-phenyl)thieno[2,3-d]pyrimidin-6-yl]ethanone (0.55 mmol) was dissolved in 5 mL iPrOH, 118 mg methyl (2R)-2-hydroxy-3-phenyl-propanoate (Preparation 3ag) (0.65 mmol) and 538 mg Cs2CO3 (1.65 mmol) was added and the mixture was stirred at room temperature until no further conversion was observed. It was diluted with water, the pH of the mixture was set to 4 with 2 M HCl, and extracted with dichloromethane. The combined organic layers were dried over Na2SO4, concentrated under reduced pressure, and the residue was purified via flash chromatography using heptane and ethyl acetate as eluents.

Step C

The product of Step B was dissolved in 10 mL THF, 6 mL TBAF (1M in THF) (0.6 mmol) was added and the mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with ethyl acetate, washed with water and brine. The organic layer was dried over Na2SO4, concentrated under reduced pressure and purified via flash chromatography using heptane and ethyl acetate as eluents. The diastereoisomer eluting later was collected to obtain methyl (2R)-2-[6-acetyl-(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate. 1H NMR (500 MHz, DMSO-d6): 10.44 (br s, 1H), 8.71 (s, 1H), 7.20 (m, 3H), 7.16 (d, 1H), 7.03 (d, 1H), 6.82 (m, 2H), 5.46 (dd, 1H), 4.75 (m, 1H), 2.87 (dd, 1H), 2.64 (dd, 1H), 2.03 (s, 3H), 1.94 (s, 3H), 1.07 (d, 3H), 0.91 (d, 3H). HRMS: (M+H)=525.1244

Step D

Using General Procedure (XVb) and methyl (2R)-2-[6-acetyl-(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-phenyl-propanoate as the appropriate phenol, Example 522 was obtained. HRMS calculated for C31H33ClN4O5S: 608.186; found 609.194 (M+H).

General Procedure (XVI) Step A

2.5 eq. of the appropriate boronic acid was dissolved in dry dioxane (5 mL/mmol Preparation 25), then 2.5 eq pinacol and dry acidic Amberlyst (100 mg/mmol boronic acid) were added and the mixture was stirred at room temperature overnight, then it was filtered (if the appropriate boronic ester was available, then it was dissolved in dioxane (5 mL/mmol Preparation 25) and this solution was used instead of the filtrate). 1 eq. ethyl (2R)-2-[(5.5,)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (Preparation 25), 0.1 eq. PdCl2×dppf, 2.5 eq. Cs2CO3 and water (2.5 mL/mmol) were added to the filtrate and the mixture was heated under nitrogen at 110° C. in a microwave reactor until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and EtOAc as eluents.

Step B

1 eq. of the product of Step A, 2 eq. of 2-(4-methylpiperazin-1-yl)ethanol and 2 eq. PPh3 were dissolved in dry toluene (0.2 M for the product of Step A), then 2 eq. ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the residue was purified via flash chromatography using EtOAc and MeOH as eluents.

Step C

The product of Step B was dissolved in dioxane-water (1:1, 10 mL/mmol) and 10 eq. LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The crude product was purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

Example 523 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(3,4,5-trifluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 4,4,5,5-tetramethyl-2-(3,4,5-trifluorophenyl)-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 523 was obtained.

HRMS calculated for C36H34ClF3N4O5S: 726.1891; found 727.1963 (M+H).

Example 524 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(3,4-difluoro-5-methoxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-(3,4-difluoro-5-methoxy-phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 524 was obtained. HRMS calculated for C37H37ClF2N4O6S: 738.2090; found 739.2158 (M+H).

Example 525 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(2,3,4,5-tetrafluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 4,4,5,5-tetramethyl-2-(2,3,4,5-tetrafluorophenyl)-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 525 was obtained. HRMS calculated for C36H33ClF4N4O5S: 744.1796; found 745.1873 (M+H).

Example 526 (2R)-2-{[6-(3-chloro-5-fluorophenyl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-(3-chloro-5-fluoro-phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 526 was obtained. HRMS calculated for C36H35Cl2FN4O5S: 724.1689; found 725.1766 (M+H).

Example 527 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(3,5-difluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-(3,5-difluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 527 was obtained.

HRMS calculated for C36H35ClF2N4O5S: 708.1985; found 709.2054 (M+H).

Example 528 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(3-fluoro-5-methoxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-(3-fluoro-5-methoxy-phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 528 was obtained. HRMS calculated for C37H38ClFN4O6S: 720.2185; found 721.2259 (M+H).

Example 529 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-methylfuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 4,4,5,5-tetramethyl-2-(4-methyl-2-furyl)-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 529 was obtained.

HRMS calculated for C35H37ClN4O6S: 676.2122; found 677.2239 (M+H).

Example 530 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(thieno[3,2-b]thiophen-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid Step A

982 mg thieno[3,2-b]thiophene (7.0 mmol) was dissolved in 40 mL dry THF and cooled to −78° C. under argon atmosphere. 11.2 mL nBuLi (7.0 mmol, 1.6 M in hexanes) was added and the mixture was stirred at −78° C. for 1 hour. Then 1.6 mL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (7.7 mmol) was added and the mixture was allowed to warm up to room temperature, then it was quenched with saturated aq. NH4Cl solution, then extracted with THF, dried over Na2SO4, filtered and concentrated and purified via flash chromatography using heptane and EtOAc as eluents to give 4,4,5,5-tetramethyl-2-thieno[3,2-b]thiophen-2-yl-1,3,2-dioxaborolane. MS (EI, 70 eV) m/z (% relative intensity, [ion]): 120 (19), 165 (25), 166 (100), 167 (44), 180 (17), 206 (22), 223 (60), 266 (68, [M+]).

Step B

Using General Procedure (XVI) and 4,4,5,5-tetramethyl-2-thieno[3,2-b]thiophen-2-yl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 530 was obtained. HRMS calculated for C36H35ClN4O5S3: 734.1458; found 735.1553 (M+H).

Example 531 (2R)-2-[(5Sa)-(5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-[4-fluoro-3-(trifluoromethyl)phenyl]thieno[2,3-d]pyrimidin-4-yl)oxy]-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-[4-fluoro-3-(trifluoromethyl)phenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 531 was obtained. HRMS calculated for C37H35ClF4N4O5S: 758.1953; found 759.2031 (M+H).

Example 532 (2R)-2-{[6-(3-chloro-4-fluorophenyl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-(3-chloro-4-fluoro-phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 532 was obtained. HRMS calculated for C36H35Cl2FN4O5S: 724.1689; found 725.1761 (M+H).

Example 533 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(3,4-difluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-(3,4-difluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 533 was obtained.

HRMS calculated for C36H35ClF2N4O5S: 708.1985; found 709.2055 (M+H).

Example 534 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluoro-3-hydroxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol as the appropriate boronic acid derivative, Example 534 was obtained. HRMS calculated for C36H36ClFN4O6S: 706.2028; found 707.2087 (M+H).

Example 535 (2R)-2-[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-[4-fluoro-3-(2,2,2-trifluoroethoxy)phenyl]thieno[2,3-d]pyrimidin-4-yl)oxy]-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-[4-fluoro-3-(2,2,2-trifluoroethoxy)phenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 535 was obtained. HRMS calculated for C38H37ClF4N4O6S: 788.2058; found 789.2125 (M+H).

Example 536 (2R)-2-{[6-(3-chloro-2,4-difluorophenyl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-(3-chloro-2,4-difluoro-phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 536 was obtained. HRMS calculated for C36H34Cl2F2N4O5S: 742.1595; found 743.1645 (M+H).

Example 537 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(2,3,4-trifluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 4,4,5,5-tetramethyl-2-(2,3,4-trifluorophenyl)-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 537 was obtained.

HRMS calculated for C36H34ClF3N4O5S: 726.1891; found 727.1963 (M+H).

Example 538 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-methylphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 4,4,5,5-tetramethyl-2-(p-tolyl)-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 538 was obtained. HRMS calculated for C37H39ClN4O5S: 686.2330; found 687.2405 (M+H).

Example 539 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-chlorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-(4-chlorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 539 was obtained.

HRMS calculated for C36H36Cl2N4O5S: 706.1783; found 707.1865 (M+H).

Example 540 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(2,4-difluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-(2,4-difluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 540 was obtained.

HRMS calculated for C36H35ClF2N4O5S: 708.1985; found 709.2055 (M+H).

Example 541 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-methylfuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 4,4,5,5-tetramethyl-2-(5-methyl-2-furyl)-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 541 was obtained.

HRMS calculated for C35H37ClN4O6S: 676.2122; found 677.2198 (M+H).

Example 542 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-[5-(dimethoxymethyl)furan-2-yl]thieno[2,3-d]pyrimidin-4-yl)oxy]-3-(2-methoxyphenyl)propanoic Acid

Using Step A and Step B of General Procedure (XVI) and (5-formyl-2-furyl)boronic acid as the appropriate boronic acid derivative ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxyl phenyl]-6-(5-formyl-2-furyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate was obtained. It was dissolved in methanol-water (9:1) containing 5 m/m % NaOH (10 eq.) and the mixture was stirred at 50° C. until no further conversion was observed. Then the mixture was diluted with water and the pH was adjusted to 6 by the addition of 2 M HCl solution. The mixture was extracted with DCM, the combined organic phases dried over Na2SO4, and concentrated under reduced pressure. The crude product was purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Example 542. HRMS calculated for C37H41ClN4O8S: 736.2334; found 737.2416 (M+H).

Example 543 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-ethylfuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-(5-ethyl-2-furyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 543 was obtained.

HRMS calculated for C36H39ClN4O6S: 690.2279; found 691.2343 (M+H).

Example 544 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-methoxyfuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-(5-methoxy-2-furyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 544 was obtained.

HRMS calculated for C35H37ClN4O7S: 692.2071; found 693.2122 (M+H).

Example 545 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(3-nitrophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 4,4,5,5-tetramethyl-2-(3-nitrophenyl)-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 545 was obtained.

HRMS calculated for C36H36ClN5O7S: 717.2024; found 718.2101 (M+H).

Example 546 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(3-methylphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 4,4,5,5-tetramethyl-2-(m-tolyl)-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 546 was obtained. HRMS calculated for C37H39ClN4O5S: 686.2330; found 687.2401 (M+H).

Example 547 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(3-ethynylphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and trimethyl-[2-[3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]ethynyl]silane as the appropriate boronic acid derivative, Example 547 was obtained. HRMS calculated for C38H37ClN4O5S: 696.2173; found 697.2234 (M+H).

Example 548 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(3-cyanophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile as the appropriate boronic acid derivative, Example 548 was obtained.

HRMS calculated for C37H36ClN5O5S: 697.2126; found 698.2188 (M+H).

Example 549 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-[3-(trifluoromethyl)phenyl]thieno[2,3-d]pyrimidin-4-yl)oxy]-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 4,4,5,5-tetramethyl-2-[3-(trifluoromethyl)phenyl]-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 549 was obtained. HRMS calculated for C37H36ClF3N4O5S: 740.2047; found 741.2125 (M+H).

Example 550 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(3-chlorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-(3-chlorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 550 was obtained.

HRMS calculated for C36H36Cl2N4O5S: 706.1783; found 707.1860 (M+H).

Example 551 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy[phenyl}-6-(3-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-(3-fluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 551 was obtained.

HRMS calculated for C36H36ClFN4O5S: 690.2079; found 691.2152 (M+H).

Example 552 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-[3-(dimethylamino)phenyl]thieno[2,3-d]pyrimidin-4-yl)oxy]-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and N,N-dimethyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline as the appropriate boronic acid derivative, Example 552 was obtained. HRMS calculated for C38H42ClN5O5S: 715.2595; found 716.2681 (M+H).

Example 553 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(3-hydroxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol as the appropriate boronic acid derivative, Example 553 was obtained. HRMS calculated for C36H37ClN4O6S: 688.2122; found 689.2204 (M+H).

Example 554 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(3-methoxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-(3-methoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 554 was obtained.

HRMS calculated for C37H39ClN4O6S: 702.2279; found 703.2358 (M+H).

Example 555 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-[3-(trifluoromethoxy)phenyl]thieno[2,3-d]pyrimidin-4-yl)oxy]-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 4,4,5,5-tetramethyl-2-[3-(trifluoromethoxy)phenyl]-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 555 was obtained. HRMS calculated for C37H36ClF3N4O6S: 756.1996; found 757.2067 (M+H).

Example 556 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-[3-(4-fluorophenoxy)phenyl]thieno[2,3-d]pyrimidin-4-yl)oxy]-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-[3-(4-fluorophenoxy)phenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 556 was obtained. HRMS calculated for C42H40ClFN4O6S: 782.2341; found 783.2412 (M+H).

Example 557 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(3-ethoxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-(3-ethoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 557 was obtained.

HRMS calculated for C38H41ClN4O6S: 716.2435; found 717.2505 (M+H).

Example 558 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-[3-(methylsulfanyl)phenyl]thieno[2,3-d]pyrimidin-4-yl)oxy]-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 4,4,5,5-tetramethyl-2-(3-methylsulfanylphenyl)-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 558 was obtained.

HRMS calculated for C37H39ClN4O5S2: 718.2050; found 719.2113 (M+H).

Example 559 (2R)-2-{[6-(3-chloro-2-fluorophenyl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-(3-chloro-2-fluoro-phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 559 was obtained. HRMS calculated for C36H35Cl2FN4O5S: 724.1689; found 725.1765 (M+H).

Example 560 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(2,3-difluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-(2,3-difluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 560 was obtained.

HRMS calculated for C36H35ClF2N4O5S: 708.1985; found 709.2052 (M+H).

Example 561 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(2-fluoro-3-methoxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-(2-fluoro-3-methoxy-phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 561 was obtained. HRMS calculated for C37H38ClFN4O6S: 720.2185; found 721.2281 (M+H).

Example 562 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-[2-fluoro-3-(trifluoromethoxy)phenyl]thieno[2,3-d]pyrimidin-4-yl)oxy]-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-[2-fluoro-3-(trifluoromethoxy)phenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 562 was obtained. HRMS calculated for C37H35ClF4N4O6S: 774.1902; found 775.1974 (M+H).

Example 563 (2R)-2-{[6-(1-benzofuran-4-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-(benzofuran-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 563 was obtained.

HRMS calculated for C38H37ClN4O6S: 712.2122; found 713.2193 (M+H).

Example 564 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-phenylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 4,4,5,5-tetramethyl-2-phenyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 564 was obtained. HRMS calculated for C36H37ClN4O5S: 672.2173; found 673.2258 (M+H).

Example 565 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(2-chlorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-(2-chlorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 565 was obtained.

HRMS calculated for C36H36Cl2N4O5S: 706.1783; found 707.1860 (M+H).

Example 566 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(2-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-(2-fluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 566 was obtained.

HRMS calculated for C36H36ClFN4O5S: 690.2079; found 691.2169 (M+H).

Example 567 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(pyridin-3-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine as the appropriate boronic acid derivative, Example 567 was obtained. HRMS calculated for C35H36ClN5O5S: 673.2126; found 674.2205 (M+H).

Example 568 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(thiophen-3-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 4,4,5,5-tetramethyl-2-(3-thienyl)-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 568 was obtained. HRMS calculated for C34H35ClN4O5S2: 678.1737; found 679.1808 (M+H).

Example 569 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(1,3-oxazol-5-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3-oxazole as the appropriate boronic acid derivative, Example 569 was obtained. HRMS calculated for C33H34ClN5O6S: 663.1918; found 664.1997 (M+H).

Example 570 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-chlorothiophen-3-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using General Procedure (XVI) and 2-(5-chloro-3-thienyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 570 was obtained.

HRMS calculated for C34H34Cl2N4O5S2: 712.1348; found 713.1423 (M+H).

Example 571 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(thieno[3,2-b]thiophen-3-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid Step A

782 mg 3-bromothieno[3,2-b]thiophene (3.6 mmol), 3.626 g 4,4,5,5-tetramethyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3,2-dioxaborolane (14 mmol), 0.783 g PdCl2×dppf (1.07 mmol) and 2.102 g KOAc (21.4 mmol) were dissolved in 4 mL dioxane. The mixture was heated to 60° C. and stirred under argon atmosphere until no further conversion was observed. The reaction mixture was cooled to room temperature and filtered through a pad of celite. The filtrate was concentrated and purified via flash chromatography using heptane and EtOAc as eluents to give 4,4,5,5-tetramethyl-2-thieno[3,2-b]thiophen-3-yl-1,3,2-dioxaborolane. 1H NMR (500 MHz, DMSO-d6): 8.11 (d, 1H), 7.67 (dd, 1H), 7.45 (d, 1H), 1.32 (s, 12H). HRMS calculated for C12H15BO2S2: 266.0607, found: 267.0682 (M+H).

Step B

Using General Procedure (XVI) and 4,4,5,5-tetramethyl-2-thieno[3,2-b]thiophen-3-yl-1,3,2-dioxaborolane as the appropriate boronic acid derivative, Example 571 was obtained. HRMS calculated for C36H35ClN4O5S3: 734.1458; found 735.1531 (M+H).

Example 572 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(prop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Using Step B and C of General Procedure (XVI) and ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-prop-1-ynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (Preparation 6l) as the phenol derivative, Example 572 was obtained. HRMS calculated for C33H35ClN4O5S: 634.2017; found 635.2082 (M+H).

Example 573 (2R)-2-{[6-(but-1-yn-1-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid Step A

625 mg ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (Preparation 25) (1.0 mmol), 35 mg Pd(PPh3)2Cl2 (0.05 mmol) and 19 mg CuI (0.1 mmol) were dissolved in 4 mL DIPA, then but-1-yne was bubbled through the reaction mixture, which was stirred at 50° C. until no further conversion was observed. Then the volatiles were evaporated under reduced pressure and the crude intermediate was purified by flash chromatography using EtOAc and MeOH as eluents to obtain ethyl (2R)-2-[6-but-1-ynyl-(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate.

Step B

Using Step B and C of General Procedure (XVI) and ethyl (2R)-2-[6-but-1-ynyl-(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate as the phenol derivative, Example 573 was obtained. HRMS calculated for C34H37ClN4O5S: 648.2173; found 649.2251 (M+H).

Example 574 (2R)-2-{[(5Ra)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(dimethylcarbamoyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid and Example 575 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(dimethylcarbamoyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

2.195 g 4-chloro-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]thieno-[2,3-d]pyrimidine (Preparation 12) (5.02 mmol) was dissolved in 50 mL dry THF and then it was cooled to −78° C. under argon atmosphere. 5.2 mL lithium diisopropylamide (10.4 mmol, 2 M in THF, EtPh, hexanes) was added and the mixture was stirred at −78° C. for 1 hour. Then 5.00 g dry-ice was added and the mixture was allowed to warm up to room temperature and it was stirred until no further conversion was observed. The mixture was quenched with saturated aq. NH4Cl and extracted with DCM. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using DCM and MeOH as eluents to obtain 4-chloro-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]thieno[2,3-d]pyrimidine-6-carboxylic acid.

Step B

1.444 g 4-chloro-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]thieno[2,3-d]pyrimidine-6-carboxylic acid (3.0 mmol), 444 mg ethyl (2R)-2-hydroxy-3-(2-methoxyphenyl)propanoate (Preparation 3ad) (2.0 mmol) and 987 mg cesium carbonate (9.0 mmol) were stirred in 30 mL dry tertbutanol at 70° C. until no further conversion was observed. The reaction mixture was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The crude intermediate was purified via flash chromatography using DCM and MeOH as eluents to obtain 5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-4-1 [(2R)-1-ethoxy-3-(2-methoxyphenyl)-1-oxopropan-2-yl]oxy}thieno[2,3-d]pyrimidine-6-carboxylic acid.

Step C

669 mg 5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-4-1 [(2R)-1-ethoxy-3-(2-methoxyphenyl)-1-oxopropan-2-yl]oxy}thieno[2,3-d]pyrimidine-6-c arboxylic acid (1.0 mmol), 1 mL dimethylamine (2 mmol, 2 M in THF) and DIPA were dissolved in 5 mL dry DCM, then 520 mg PyBOP (1.0 mmol) was added and the mixture was stirred at room temperature until no further conversion was observed. The volatiles were removed under reduced pressure and the residue was purified via flash chromatography using EtOAc and MeOH as eluents to obtain ethyl (2R)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(dimethylcarbamoyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate.

Step D

Ethyl (2R)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(dimethylcarbamoyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate was hydrolyzed according to Step C of General Procedure (XVI). The diastereoisomer eluting earlier was collected as Example 574. HRMS calculated for C33H38ClN5O6S: 667.2231; found 668.2287 (M+H). The diastereoisomer eluting later was collected as Example 575.

HRMS calculated for C33H38ClN5O6S: 667.2231; found 668.2280 (M+H).

Example 576 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(1,1-difluoroethyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid Step A

4.22 g 4-chloro-5,6-diiodo-thieno[2,3-d]pyrimidine (Preparation 1b) (10.0 mmol) was dissolved in 160 mL dry THF, then cooled to −78° C. under argon atmosphere. 5 mL ethylmagnesium chloride (2 M in THF) (10.0 mmol) was added and the mixture was stirred at −78° C. for 10 minutes. Then 1.321 g acetaldehyde (30.0 mmol) was added and the mixture was allowed to warm up to room temperature. Saturated aq. NH4Cl was added and the mixture was extracted with ethyl acetate. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The crude product was purified via flash chromatography using DCM and MeOH as eluents to obtain 1-(4-chloro-5-iodo-thieno[2,3-d]pyrimidin-6-yl)ethanol. 1H NMR (400 MHz, DMSO-d6): 8.89 (s, 1H), 6.38 (d, 1H), 5.15 (m, 1H), 1.44 (d, 3H).

Step B

2.1 g 1-(4-chloro-5-iodo-thieno[2,3-d]pyrimidin-6-yl)ethanol (6.17 mmol) was dissolved in 100 mL dichloromethane, then cooled to 0° C. under argon atmosphere. Then 2.75 g Dess-Martin periodinane (6.47 mmol) was added and stirred until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using DCM as eluent to obtain 1-(4-chloro-5-iodo-thieno[2,3-d]pyrimidin-6-yl)ethanone. 1H NMR (400 MHz, DMSO-d6): 9.04 (s, 1H), 2.80 (s, 3H).

Step C

1.02 g 1-(4-chloro-5-iodo-thieno[2,3-d]pyrimidin-6-yl)ethanone (3.01 mmol) was dissolved in 25 mL dichloromethane, then 3.22 g DAST (20.0 mmol) was added. The mixture was stirred at 50° C. under argon atmosphere until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using dichloromethane as eluent to obtain 4-chloro-6-(1,1-difluoroethyl)-5-iodo-thieno[2,3-d]pyrimidine. 1H NMR (400 MHz, DMSO-d6): 9.02 (s, 1H), 2.22 (t, 3H).

Step D

880 mg 4-chloro-6-(1,1-difluoroethyl)-5-iodo-thieno[2,3-d]pyrimidine (2.44 mmol), 821 mg ethyl (2R)-2-hydroxy-3-(2-methoxyphenyl)propanoate (Preparation 3ad) (3.66 mmol) and 1.59 g Cs2CO3 (4.88 mmol) were stirred at 50° C. in 2.5 mL DMSO until no further conversion was observed. The reaction mixture was diluted with brine, then it was extracted with EtOAc. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and EtOAc as eluents to obtain ethyl (2R)-2-[6-(1,1-difluoroethyl)-5-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate. 1H NMR (400 MHz, DMSO-d6): 8.70 (s, 1H), 7.44 (dd, 1H), 7.25 (td, 1H), 6.98 (d, 1H), 6.88 (t, 1H), 5.69 (dd, 1H), 4.10 (q, 2H), 3.80 (s, 3H), 3.41 (dd, 1H), 3.26 (dd, 1H), 2.20 (t, 3H), 1.09 (t, 3H).

Step E

920 mg ethyl (2R)-2-[6-(1,1-difluoroethyl)-5-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (1.68 mmol) and 676 mg 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (2.52 mmol) were dissolved in 7 mL 2-Me-THF, then 2.52 mL tetrabutylammonium hydroxide (2.52 mmol, 1 M in water) and 119 mg AtaPhos (0.168 mmol) were added and the mixture was heated under nitrogen at 110° C. in a microwave reactor until no further conversion was observed. Then it was diluted with brine and extracted with dichloromethane. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure, and the crude intermediate was purified via flash chromatography using heptane and EtOAc as eluents to obtain ethyl (2R)-2-[5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(1,1-difluoroethyl) thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate as a mixture of diastereoisomers. 1H NMR (400 MHz, DMSO-d6): 10.34 (br s, 1H), 8.68 (s, 1H), 7.20 (td, 1H), 7.04 (d, 1H), 6.96 (d, 1H), 6.93 (d, 1H), 6.81 (t, 1H), 6.55 (dd, 1H), 5.42 (dd, 1H), 3.98 (m, 2H), 3.76 (s, 3H), 2.87 (dd, 1H), 2.46 (dd, 1H), 1.93 (s, 3H), 1.72 (t, 3H), 1.00 (t, 3H).

Step F

100 mg ethyl (2R)-2-[5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(1,1-difluoroethyl) thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (0.178 mmol), 51 mg 2-(4-methylpiperazin-1-yl)ethanol (0.355 mmol) and 534 mg triphenyl phosphine (0.534 mmol) were dissolved in 4 mL dry toluene, then 123 mg ditertbutyl azodicarboxylate (0.534 mmol) was added. The mixture was stirred at 45° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using EtOAc and methanol as eluents to obtain ethyl (2R)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(1,1-difluoroethyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl) propanoate.

Step G

The intermediate obtained in Step F was dissolved in 3 mL methanol and 100 mg LiOH×H2O (2.38 mmol) was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The crude product was purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents. The diastereoisomer eluting later was collected as Example 576. HRMS calculated for C32H35ClF2N4O5S: 660.1985; found 661.2059 (M+H).

Example 577 (2R)-2-{[6-(5-bromofuran-2-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

1.326 g (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic acid (Example 209) (2 mmol) was dissolved in 20 mL chloroform, then 534 mg NBS (3 mmol) was added. The resulting mixture was stirred at 0° C. until no further conversion was observed. Then the mixture was diluted with water and the pH was adjusted to 6 by the addition of 2 M HCl solution. The mixture was extracted with DCM, the combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The crude product was purified via reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Example 577. HRMS calculated for C34H34BrClN4O6S: 740.1071; found 741.1165 (M+H).

Example 578 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-ethynylfuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

52 mg (2R)-2-{[6-(5-bromofuran-2-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic acid (Example 577) (0.07 mmol), 96 mg butyl-dimethyl-[2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)ethynyl]silane (0.36 mmol), 120 mg Cs2CO3 (0.36 mmol) and 6 mg PdCl2×dppf (0.008 mmol) were dissolved in a mixture of 0.80 mL dioxane and 0.20 mL water. The reaction mixture was stirred at 70° C. until no further conversion was observed. The reaction was quenched at room temperature with water and the mixture was extracted with DCM. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The residue was dissolved in 0.50 mL THF, then 50 μL TBAF (1 M in THF) was added and the reaction mixture was stirred at room temperature until no further conversion was observed. Then the mixture was concentrated under reduced pressure and purified via reversed phase chromatography using 5 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Example 578. HRMS calculated for C36H35ClN4O6S: 686.1966; found 687.2039 (M+H).

Example 579 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-cyanofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid Step A

250 mg ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (Preparation 25) (0.40 mmol), 315 mg PPh3 (1.20 mmol), 276 mg ditertbutyl azodicarboxylate (1.20 mmol) and 173 mg 2-(4-methylpiperazin-1-yl)ethanol (1.20 mmol) were dissolved in 10 ml dry toluene and the reaction mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The mixture was concentrated under reduced pressure and the crude product was purified via flash chromatography using DCM and MeOH as eluents. The obtained product was hydrolyzed in 3 mL methanol-water (9:1) containing NaOH (5m/m %) at room temperature. The mixture was diluted with water, the pH was adjusted to 6 by the addition of 2 M HCl solution, and it was extracted with DCM. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The crude product was purified using reverse phase preparative HPLC resulting (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoic acid.

Step B

72 mg (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoic acid (0.10 mmol), 66 mg 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)furan-2-carbonitrile (0.30 mmol), 18 mg AtaPhos (0.025 mmol) and 98 mg Cs2CO3 (0.30 mmol) were dissolved in a mixture of 0.75 mL THF and 0.25 mL water and heated under nitrogen at 100° C. for 10 minutes in a microwave reactor. The crude reaction mixture was diluted with water and the pH was adjusted to 6 by the addition of 2N HCl solution. The mixture was extracted with DCM, the combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The crude product was purified via reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Example 579. HRMS calculated for C35H34ClN5O6S: 687.1918; found 688.2001 (M+H).

Example 580 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-[5-(methoxycarbonoimidoyl)furan-2-yl]thieno[2,3-d]pyrimidin-4-yl)oxy]-3-(2-methoxyphenyl)propanoic Acid

222 mg (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-cyanofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl) propanoic acid (Example 579) (0.032 mmol) was hydrolyzed in 3 mL methanol-water (9:1) containing NaOH (5m/m %) at room temperature. After evaporation of the volatiles under reduced pressure the multicomponent mixture was purified using reversed phase chromatography with 25 mM aqueous NH4HCO3 solution and MeCN as eluents to give Example 580 as one of the products. HRMS calculated for C36H38ClN5O7S: 719.2180; found 360.6152 (M+2H).

Example 581 (2R)-2-{[6-(5-carbamoylfuran-2-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

Hydrolysis of (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-cyanofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl) propanoic acid (Example 579) was performed as described in Example 580. Example 581 was obtained as one of the products of the multicomponent mixture following separation by reversed phase chromatography with 25 mM aqueous NH4HCO3 solution and MeCN as eluents. HRMS calculated for C35H36ClN5O7S: 705.2024; found 706.2105 (M+H).

Example 582 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-[5-(dimethylcarbamoyl)furan-2-yl]thieno[2,3-d]pyrimidin-4-yl)oxy]-3-(2-methoxyphenyl)propanoic Acid Step A

984 mg 4-chloro-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]thieno[2,3-d]pyrimidine (Preparation 12) (2.25 mmol) was dissolved in 20 mL dry THF under N2 and cooled to −78° C. 2.25 mL LDA (2 M in THF, 4.5 mmol) was added at −78° C. and the reaction mixture was stirred for 1 h at this temperature, then 9 mL chloro(trimethyl)stannane (1 M in THF, 9 mmol) was added and stirred for 20 min at -78° C., then the reaction mixture was allowed to warm up to room temperature. Saturated aq. NH4Cl was added and the mixture was extracted with diethyl ether. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The residue was dissolved in 60 mL EtOAc and following the addition of 40 mL saturated aq. NaF solution it was stirred overnight and filtered. The aqueous phase was extracted with EtOAc and the combined organic phases were dried over Na2SO4, and evaporated under reduced pressure. The crude product was purified via flash chromatography using DCM and MeOH as eluents to obtain [4-chloro-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]thieno[2,3-d]pyrimidin-6-yl]-trimethyl-stannane. 1H NMR (500 MHz, DMSO-d6): 8.90 (s, 1H), 7.13 (d, 1H), 7.11 (d, 1H), 4.22 (m, 2H), 2.77 (t, 2H), 2.57 (br s, 4H), 2.41 (br s, 4H), 2.21 (br s, 3H), 1.97 (s, 3H), 0.14 (s, 9H). HRMS calculated for C23H30Cl2N4OSSn: 600.0539; found 601.0584 (M+H).

Step B

1.91 g 5-bromofuran-2-carboxylic acid (10 mmol), 10 mL dimethylamine (2 M in THF, 20 mmol), 5.42 g PyBOP (10.4 mmol) and 3.5 mL DIPA (20 mmol) were dissolved in 20 mL dry DCM and stirred at room temperature under N2 until no further conversion was observed. The DCM was evaporated under reduced pressure and the residue was purified via flash chromatography using heptane and EtOAc as eluents to obtain 5-bromo-N,N-dimethyl-furan-2-carboxamide. MS: (M+H)+=218.2.

Step C

400 mg [4-chloro-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]thieno[2,3-d]pyrimidin-6-yl]-trimethyl-stannane (product of Step A) (0.6 mmol), 291 mg 5-bromo-N,N-dimethyl-furan-2-carboxamide (product of Step B) (1.3 mmol), 12 mg Pd(PhCN)2Cl2 (0.03 mmol), 13 mg CuI (0.06 mmol) and 20 mg Ph3As (0.06 mmol) were dissolved in 1 mL NMP and stirred at 100° C. under N2 until no further conversion was observed. The mixture was diluted with EtOAc and washed with saturated aq. NaF solution. The aqueous phase was extracted with EtOAc and the combined organic phases were dried over Na2SO4 and evaporated under reduced pressure. The crude product was purified via flash chromatography using DCM and MeOH as eluents to obtain 5-[4-chloro-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]thieno[2,3-d]pyrimidin-6-yl]-N,N-dimethyl-furan-2-carboxamide. 1H NMR (500 MHz, DMSO-d6): 8.97 (s, 1H), 7.26 (d, 1H), 7.20 (d, 1H), 7.04 (d, 1H), 5.80 (d, 1H), 4.24 (t, 2H), 3.13 (br s, 3H), 2.97 (br s, 3H), 2.79 (t, 2H), 2.57 (br s, 4H), 2.35 (br s, 4H), 2.17 (s, 3H), 2.06 (s, 3H). HRMS calculated for C27H29Cl2N5O3S: 573.1368; found 574.1463 (M+H).

Step D

0.255 g 5-[4-chloro-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]thieno[2,3-d]pyrimidin-6-yl]N,N-dimethyl-furan-2-carboxamide (0.4 mmol), 0.134 g ethyl (2R)-2-hydroxy-3-(2-methoxyphenyl)propanoate (Preparation 3ad) (0.6 mmol) and 0.391 g Cs2CO3 (1.2 mmol) were placed in a 100 mL flask. 35 mL propan-2-ol was added and the mixture was stirred at 50° C. under N2 until no further conversion was observed. 1 mL water and 0.336 g LiOH×H2O (8 mmol) were added and the mixture was stirred at 50° C. until no further conversion was observed. The reaction was diluted with water; the pH was adjusted between 4-5 using 2 M HCl and extracted with DCM. The combined organic phases were dried over Na2SO4 and evaporated under reduced pressure. The diastereomers were separated via preparative reversed phase chromatography using 20 mM aqueous NH4HCO3 solution and MeCN as eluents; the diastereomer eluting later was collected as Example 582. HRMS calculated for C37H40ClN5O7S: 733.2337; found 734.2450 (M+H).

Example 583 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-[5-(methoxycarbonyl)furan-2-yl]thieno[2,3-d]pyrimidin-4-yl)oxyl-3-(2-methoxyphenyl)propanoic Acid

Hydrolysis of (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-cyanofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl) propanoic acid (Example 579) was performed as described in Example 580. Example 583 was obtained as one of the products of the multicomponent mixture following separation by reversed phase chromatography with 25 mM aqueous NH4HCO3 solution and MeCN as eluents. HRMS calculated for C36H37ClN4O8S: 720.2021; found 721.2104 (M+H).

Example 584 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy[phenyl}-6-(5-ethenylfuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

27 mg (2R)-2-{[6-(5-bromofuran-2-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methyl piperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl) propanoic acid (Example 577) (0.036 mmol), 28 mg 4,4,5,5-tetramethyl-2-vinyl-1,3,2-dioxaborolane (0.18 mmol), 23 mg Cs2CO3 (0.072 mmol) and 3 mg AtaPhos (0.004 mmol) were dissolved in a mixture of 0.40 mL dioxane and 0.10 mL water. The reaction mixture was stirred at 70° C. until no further conversion was observed. The reaction mixture was quenched at room temperature with water and the pH was set to 5 using 2 M HCl solution. The mixture was extracted with DCM, and the combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The crude product was purified via reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Example 584. HRMS calculated for C36H37ClN4O6S: 688.2122; found 689.2178 (M+H).

Example 585 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy[phenyl}-6-(5-cyclopropylfuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid

283 mg (2R)-2-{[6-(5-bromofuran-2-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methyl piperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl) propanoic acid (Example 577) (0.38 mmol), 0.70 mL 2-cyclopropyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (3.8 mmol), 0.62 g Cs2CO3 (1.9 mmol) and 29 mg PdCl2×dppf (0.04 mmol) were dissolved in a mixture of 4 mL dioxane and 1 mL water. The mixture was heated under nitrogen at 100° C. in a microwave reactor until no further conversion was observed. The reaction was quenched at room temperature with water and the pH was set to 6 using 2 M HCl solution. The mixture was extracted with DCM, the combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The crude product was purified via reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Example 585. HRMS calculated for C37H39ClN4O6S: 702.2279; found 703.2337 (M+H).

Example 586 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-phenylfuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl) propanoic Acid

200 mg (2R)-2-{[6-(5-bromofuran-2-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methyl piperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl) propanoic acid (Example 577) (0.27 mmol), 275 mg 4,4,5,5-tetramethyl-2-phenyl-1,3,2-dioxaborolane (1.35 mmol), 440 mg Cs2CO3 (1.35 mmol) and 19 mg AtaPhos (0.027 mmol) were dissolved in a mixture of 3 mL dioxane and 0.75 mL water. The reaction mixture was stirred under nitrogen at 70° C. for 1 hour. The reaction was quenched at room temperature with water and the pH was set to 5 using 2 M HCl solution. The mixture was extracted with DCM, the combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The crude product was purified via reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Example 586. HRMS calculated for C40H39ClN4O6S: 738.2279; found 739.2358 (M+H).

Example 587 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-[3-(pyridin-4-ylmethoxy)phenyl]thieno[2,3-d]pyrimidin-4-yl)oxyl-3-(2-methoxyphenyl)propanoic Acid Step A

500 mg ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (Preparation 25) (0.80 mmol), 630 mg PPh3 (2.40 mmol), 352 mg ditertbutyl azodicarboxylate (2.40 mmol) and 346 mg 2-(4-methylpiperazin-1-yl)ethanol (2.40 mmol) were dissolved in 20 ml dry toluene and the reaction mixture was stirred at 50° C. under nitrogen atmosphere until no further conversion was observed. The mixture was concentrated under reduced pressure and the residue was purified via flash chromatography using DCM and MeOH as eluents to give ethyl (2R)-2-[(5.5,)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate.

Step B

445 mg ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (0.59 mmol), 264 mg 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (1.20 mmol), 106 mg AtaPhos (0.15 mmol) and 391 mg Cs2CO3 (1.20 mmol) were dissolved in a mixture of 4.5 mL THF and 4.5 mL water. The mixture was heated under nitrogen at 100° C. in a microwave reactor until no further conversion was observed. The crude reaction mixture was diluted with water and the pH was adjusted to 6 by the addition of 2 M HCl solution. The mixture was extracted with DCM, the combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using DCM and MeOH as eluents to give ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(3-hydroxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate.

Step C

72 mg ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(3-hydroxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl) propanoate (0.10 mmol), 80 mg PPh3 (0.30 mmol), 70 mg ditertbutyl azodicarboxylate (0.30 mmol) and 33 mg 4-pyridylmethanol (0.30 mmol) were dissolved in 3 ml dry toluene and the reaction mixture was stirred under nitrogen at 50° C. until no further conversion was observed. The mixture was concentrated under reduced pressure and the crude product was purified via flash chromatography using DCM and MeOH as eluents. The obtained product was hydrolyzed in 3 mL methanol-water (9:1) containing NaOH (5m/m %) at room temperature. The mixture was diluted with water and the pH was adjusted to 6 by the addition of 2 M HCl. The mixture was extracted with DCM, the combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The crude product was purified via reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Example 587. HRMS calculated for C42H42ClN5O6S: 779.2544; found 390.6339 (M+2H).

Example 588 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-{3-[2-(morpholin-4-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl)oxyl-3-(2-methoxyphenyl)propanoic Acid

Using the same procedures as described for Example 587 and replacing 4-pyridylmethanol with 2-(morpholin-4-yl)ethanol in Step C, Example 588 was obtained. HRMS calculated for C42H48ClN5O7S: 801.2963; found 401.6554 (M+2H).

Example 589 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-[3-(2-methoxyethoxy)phenyl]thieno[2,3-d]pyrimidin-4-yl)oxy]-3-(2-methoxyphenyl)propanoic Acid

Using the same procedures as described for Example 587 and replacing 4-pyridylmethanol with 2-methoxyethanol in Step C, Example 589 was obtained. HRMS calculated for C39H43ClN4O7S: 746.2541; found 747.26 (M+H).

Example 590 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-((2S or R)-tetrahydrofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid and Example 591 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-((2R or S)-tetrahydrofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid Step A

To a solution of 565 mg Preparation 6e (1.00 mmol) in 90 ml EtOH 1298 mg palladium hydroxide on carbon (Pearlman's catalyst 20 wt. %) was added. The reaction mixture was flushed with nitrogen, and then it was flushed with hydrogen and stirred under hydrogen atmosphere (10 bar) at room temperature for 4 days. The reaction mixture was filtered through a pad of Celite and the filtrate was concentrated under reduced pressure. The residue was purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to give ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-tetrahydrofuran-2-yl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate diastereomers. 1H NMR (500 MHz, DMSO-d6) of the diastereomer eluted earlier: 10.26 (s, 1H), 8.54 (s, 1H), 7.18 (td, 1H), 7.02 (d, 1H), 6.97 (d, 1H), 6.90 (dd, 1H), 6.75 (t, 1H), 6.32 (dd, 1H), 5.35 (dd, 1H), 4.70 (t, 1H), 4.03-3.96 (m, 3H), 3.76 (s, 3H), 3.73 (m, 1H), 2.95 (m, 1H), 2.45 (dd, 1H), 2.07 (m, 1H), 1.99 (s, 3H), 1.96 (m, 1H), 1.89 (m, 1H), 1.74 (m, 1H), 1.05 (t, 3H).

1H NMR (500 MHz, DMSO-d6) of the diastereomer eluted later: 10.26 (br s, 1H), 8.55 (s, 1H), 7.19 (td, 1H), 7.05 (d, 1H), 6.96 (d, 1H), 6.91 (d, 1H), 6.77 (td, 1H), 6.46 (dd, 1H), 5.36 (dd, 1H), 4.82 (t, 1H), 4.05-3.93 (m, 3H), 3.76 (s, 3H), 3.71 (m, 1H), 2.85 (dd, 1H), 2.57 (m, 1H), 2.04 (m, 1H), 1.95 (m, 1H), 1.94 (s, 3H), 1.88 (m, 1H), 1.66 (m, 1H), 1.00 (t, 3H).

Step B

Using the Step B and Step C of General Procedure (XVI), starting from the earlier eluted diastereomer in Step A Example 590 was obtained. HRMS calculated for C34H39ClN4O6S: 666.2279; found 667.2349 (M+H); Starting from the later eluted diastereomer in Step A Example 591 was obtained. HRMS calculated for C34H39ClN4O6S: 666.2279; found 667.2315 (M+H).

Example 592 (2R)-2-[((5Ra)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-(2-methoxyphenyl)propanoic Acid Step A

649 mg 4-chloro-6-ethyl-5-iodo-thieno[2,3-d]pyrimidine (Preparation 1d) (2.0 mmol), 538 mg ethyl (2R)-2-hydroxy-3-(2-methoxyphenyl)propanoate (Preparation 3ad) (2.4 mmol) and 1.955 g cesium carbonate (6.0 mmol) were stirred at 70° C. in 10 mL dry tertbutanol until no further conversion was observed. The mixture was cooled to room temperature, and then 10 mL water, 947 mg 1-[2-[2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]ethyl]-4-methyl-piperazine (Preparation 5b) (2.4 mmol) and 141 mg AtaPhos (0.2 mmol) were added. The mixture was stirred under nitrogen at 60° C. until no further conversion was observed. Then brine was added and the mixture was extracted with EtOAc. The combined organic phases were dried over MgSO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using EtOAc and MeOH as eluents to obtain ethyl (2R)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate.

Step B

The product of Step A was hydrolyzed according to Step C of General Procedure (XVI); the diastereoisomer eluting earlier was collected as Example 592. HRMS calculated for C32H37ClN4O5S: 624.2173; found 625.2255 (M+H).

Example 593 (25)-2-1((55,05-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-ethylthieno[2,3-d]pyrimidin-4-yl)oxy]-3-(2-methoxyphenyl)propanoic Acid Step A

649 mg 4-chloro-6-ethyl-5-iodo-thieno[2,3-d]pyrimidine (Preparation 1d) (2.0 mmol), 538 mg ethyl (25)-2-hydroxy-3-(2-methoxyphenyl)propanoate (Preparation 3bi) (2.4 mmol) and 1.955 g cesium carbonate (6.0 mmol) were stirred at 70° C. in 10 mL dry tertbutanol until no further conversion was observed. The mixture was cooled to room temperature, and then 10 mL water, 947 mg 1-[2-[2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]ethyl]-4-methyl-piperazine (Preparation 5b) (2.4 mmol) and 141 mg AtaPhos (0.2 mmol) were added. The mixture was stirred at 60° C. until no further conversion was observed. Then brine was added and the mixture was extracted with EtOAc. The combined organic phases were dried over MgSO4, filtered and concentrated under reduced pressure. The crude intermediate was purified via flash chromatography using EtOAc and MeOH as eluents to obtain ethyl (25)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-ethyl-thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate.

Step B

The product of Step A was hydrolyzed according to Step C of General Procedure (XVI); the diastereoisomer eluting earlier was collected as Example 592. HRMS calculated for C32H37ClN4O5S: 624.2173; found 625.2239 (M+H).

General Procedure (XVIIa) Step A

1 eq. ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluoro-3-hydroxy-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(2-methoxy pyrimidin-4-yl)methoxy]phenyl]propanoate (Preparation 28a), 2 eq. of the appropriate alcohol and 2 eq. triphenyl phosphine were dissolved in dry toluene (5 mL/mmol), then 2 eq. ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using ethyl acetate and methanol as eluents.

Step B

The obtained intermediate was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq. LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

Example 594 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-[4-fluoro-3-(methoxymethyl)phenyl]thieno[2,3-d]pyrimidin-4-yl)oxy]-3-{2-[(2-methoxypyrimidin-4-yl)methoxy]phenyl}propanoic Acid Step A

0.801 g LiCl (19 mmol) was heated at 250° C. for 10 minutes under N2. Then it was cooled to room temperature and the flask was charged with 0.911 g Mg (38 mmol) and 30 mL dry THF. The Mg was activated with 0.15 mL iBu2AlH (1 M in THF, 0.15 mmol) for 10 minutes, then it was cooled to 0° C. and 3.313 g 4-bromo-1-fluoro-2-(methoxymethyl)benzene (15 mmol) was added. After 30 minutes stirring at 0° C. 4 mL 2-isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (20 mmol) was added and the reaction mixture was stirred for 30 minutes, then filtered through celite, diluted with EtOAc and washed with saturated aq. NH4Cl. The aqueous phase was extracted with EtOAc. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure and the residue was purified via flash chromatography using heptane and EtOAc as eluents to obtain 2-[4-fluoro-3-(methoxymethyl)phenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane.

MS (EI, 70 eV) m/z (% relative intensity, [ion]): 59 (21), 85 (20), 134 (24), 135 (100), 136 (28), 150 (30), 165 (24), 166 (43), 167 (95), 192 (20), 251 (44, [M+]).

Step B

3.94 g 4-chloro-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-iodo-thieno[2,3-d]pyrimidine (Preparation 13) (7 mmol), 2.11 g 2-[4-fluoro-3-(methoxymethyl)phenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (8.4 mmol), 4.56 g Cs2CO3 (14 mmol), and 0.496 g AtaPhos (0.7 mmol) were placed in a 100 mL flask. 45 mL dioxane and 15 mL water were added, and the mixture was stirred under N2 at 70° C. until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure, and the crude product was purified via flash chromatography using DCM and MeOH as eluents to obtain 4-chloro-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-[4-fluoro-3-(methoxymethyl) phenyl]thieno[2,3-d]pyrimidine. MS: (M+H)=575.2.

Step C

2.615 g 4-chloro-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-[4-fluoro-3-(methoxymethyl)phenyl]thieno[2,3-d]pyrimidine (4.5 mmol), 1.61 g ethyl (2R)-2-hydroxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 3ab-(R)) (5.5 mmol) and 4.40 g Cs2CO3 (13.5 mmol) were placed in a 100 mL flask. 50 mL tert-butanol was added and the mixture was stirred at 80° C. under N2 until no further conversion was observed. The mixture was diluted with water, the pH was set to 7 with 2 M HCl, and then it was extracted with DCM. The combined organic layers were dried over Na2SO4 and concentrated under reduced pressure. The crude product was purified via flash chromatography using EtOAc and MeOH as eluents to obtain ethyl (2R)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-[4-fluoro-3-(methoxymethyl) phenyl]thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate as a mixture of diastereoisomers. MS: (M+H)=833.2.

Step D

2.36 g ethyl (2R)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-[4-fluoro-3-(methoxymethyl)phenyl]thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (28.3 mmol) was dissolved in 15 mL EtOH, then 20 mL 1.25 M HCl in EtOH was added and the mixture was stirred at room temperature until no further conversion was observed. Saturated aq. NaHCO3 solution was added and the reaction mixture was extracted with DCM. The combined organic layers were dried over Na2SO4 and concentrated under reduced pressure. The crude product was purified via flash chromatography using DCM and MeOH as eluents to obtain ethyl (2R)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-[4-fluoro-3-(methoxymethyl) phenyl]thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate as a mixture of diastereomers. MS: (M+H)=749.2.

Step E

0.375 g ethyl (2R)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-[4-fluoro-3-(methoxymethyl)phenyl]thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (0.5 mmol), 0.21 g (2-methoxypyrimidin-4-yl)methanol (1.5 mmol) and 0.393 g PPh3 (1.5 mmol) were dissolved in 10 mL dry toluene, then 0.345 g ditertbutyl azodicarboxylate (1.5 mmol) was added. The mixture was stirred at 50° C. under N2 until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using DCM and methanol as eluents to obtain ethyl (2R)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-[4-fluoro-3-(methoxymethyl)phenyl]thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(2-methoxypyrimidin-4-yl)methoxy]phenyl]propanoate as a mixture of diastereomers. MS: (M+H)=871.2.

Step F

The product of Step E was dissolved in 10 mL dioxane-water (1:1) and 0.21 g LiOH×H2O (5 mmol) was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure and purified via preparative reverse phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents. The diastereomer eluting later was collected as Example 594. HRMS calculated for C43H44ClFN6O7S: 842.2665; found 422.1408 (M+2H).

Example 595 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluoro-3-hydroxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-methoxypyrimidin-4-yl)methoxy]phenyl}propanoic Acid

316 mg ethyl (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluoro-3-hydroxy-phenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[(2-methoxypyrimidin-4-yl)methoxy]phenyl]propanoate (Preparation 28a) (0.375 mmol) was dissolved in 10 mL dioxane-water 1:1 and 157 mg LiOH×H2O (3.75 mmol) was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure and purified via preparative reversed phase chromatography using MeCN and 25 mM aqueous NH4HCO3 solution as eluents to obtain Example 595. HRMS calculated for C41H40ClFN6O7S: 814.2352; found 408.1254 (M+2H).

Example 596 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-{4-fluoro-3-[2-(morpholin-4-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl)oxy]-3-{2-[(2-methoxypyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (XVIIa) and 2-(morpholin-4-yl)ethanol as the appropriate alcohol, Example 596 was obtained. HRMS calculated for C47H51ClFN7O8S: 927.3192; found 464.6657 (M+2H).

Example 597 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-[4-fluoro-3-(2-hydroxyethoxy)phenyl]thieno[2,3-d]pyrimidin-4-yl)oxy]-3-{2-[(2-methoxypyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (XVIIa) and ethylene glycol as the appropriate alcohol, Example 597 was obtained. HRMS calculated for C43H44ClFN6O8S: 858.2614; found 430.1402 (M+2H).

Example 598 (2R)-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-[4-fluoro-3-(2-methoxyethoxy)phenyl]thieno[2,3-d]pyrimidin-4-yl)oxy]-3-{2-[(2-methoxypyrimidin-4-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (XVIIa) and 2-methoxyethanol as the appropriate alcohol, Example 598 was obtained. HRMS calculated for C44H46ClFN6O8S: 872.277; found 437.1468 (M+2H).

Example 599 (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(3-methoxypropyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-methoxypyrimidin-4-yl)methoxy]phenyl}propanoic Acid Step A

3.754 g 5-bromo-4-chloro-6-iodo-thieno[2,3-d]pyrimidine (Preparation 1a) (10.0 mmol), 1198 mg 3-methoxyprop-1-yne (17.1 mmol), 702 mg Pd(PPh3)2C1 (1.0 mmol), 288 mg CuI (2.0 mmol) and 2.8 mL TEA (20 mmol) were dissolved in 50 mL THF, and the mixture was stirred under nitrogen at room temperature until no further conversion was observed. It was concentrated under reduced pressure and purified via flash chromatography using heptane and ethyl acetate as eluents to obtain 5-bromo-4-chloro-6-(3-methoxyprop-1-ynyl)thieno[2,3-d]pyrimidine. 1H NMR (400 MHz, DMSO-d6): 9.04 (s, 1H), 4.50 (s, 2H), 3.40 (s, 3H).

Step B

2.07 g 5-bromo-4-chloro-6-(3-methoxyprop-1-ynyl)thieno[2,3-d]pyrimidine (6.517 mmol), 2.11 g ethyl (2R)-2-hydroxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (Preparation 3ab-(R)) (7.17 mmol) and 6.58 g Cs2CO3 (20 mmol) were placed in a flask. 70 mL tert-butanol was added and the mixture was stirred under nitrogen at 65° C. until no further conversion was observed. It was diluted with water and extracted with dichloromethane. The combined organic layers were dried over Na2SO4 and concentrated under reduced pressure to obtain ethyl (2R)-2-[5-bromo-6-(3-methoxyprop-1-ynyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate. It was used in next step without further purification. MS: (M+H)=575.0.

Step C

The product of Step B and 2.6 g 2-chloro-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (Preparation 5a) (9.68 mmol) were dissolved in 21 mL THF, then 5.24 g Cs2CO3 (16.08 mmol) dissolved in 7 mL water was added followed by 431 mg AtaPhos (0.61 mmol), and the mixture was stirred under nitrogen at 65° C. until no further conversion was observed. Then it was diluted with dichloromethane and brine. After phase separation the aqueous phase was extracted with dichloromethane. The organic layers were combined and dried over Na2SO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using heptane and ethyl acetate as eluents to obtain ethyl (2R)-2-[5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(3-methoxyprop-1-ynyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate as a mixture of diastereomers. MS: (M+H)=637.2.

Step D

2.765 g ethyl (2R)-2-[5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(3-methoxyprop-1-ynyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (4.34 mmol), 1.3 g 2-(4-methylpiperazin-1-yl)ethanol (9.0 mmol) and 2.623 g triphenyl phosphine (10.0 mmol) were dissolved in 40 mL dry toluene, then 2.303 g ditertbutyl azodicarboxylate (10.0 mmol) was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the residue was purified via flash chromatography using ethyl acetate and methanol as eluents to obtain ethyl (2R)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(3-methoxyprop-1-ynyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate as a mixture of diastereomers. MS: (M+H)=763.2.

Step E

3.59 g ethyl (2R)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(3-methoxyprop-1-ynyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl)propanoate (4.3 mmol) and 458 mg Selcat Q6 were dissolved in 50 mL methanol, then 1.87 g tert-butylamine borane (21.5 mmol) was added. The mixture was stirred at room temperature until no further conversion was observed. It was filtered through a plug of celite and the volatiles were evaporated under reduced pressure to obtain ethyl (2R)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(3-methoxypropyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-tetrahydropyran-2-yloxyphenyl) propanoate as a mixture of diastereomers that was used in next step without further purification. MS: (M+H)=767.2.

Step F

The product of Step E was dissolved in 20 mL EtOH, then 20 mL 1.25 M HCl in EtOH was added and the mixture was stirred at room temperature until no further conversion was observed. Most of the EtOH was evaporated under reduced pressure then water and saturated aq. NaHCO3 solution were added and the mixture was extracted with DCM. The combined organic layers were dried over Na2SO4 and concentrated under reduced pressure.

The crude product was purified via flash chromatography using DCM and MeOH as eluents to obtain ethyl (2R)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(3-methoxypropyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl) propanoate as a mixture of diastereomers. MS: (M+H)=683.2.

Step G

479 mg ethyl (2R)-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(3-methoxypropyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-hydroxyphenyl)propanoate (0.7 mmol), 280 mg (2-methoxypyrimidin-4-yl)methanol (2.0 mmol) and 525 mg triphenyl phosphine (2.0 mmol) were dissolved in 10 mL dry toluene, then 461 mg ditertbutyl azodicarboxylate (2.0 mmol) was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using ethyl acetate and methanol as eluents.

Step H

The product of Step G was dissolved in 30 mL dioxane-water (1:1) and 250 mg LiOH×H2O (5.95 mmol) was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with dichloromethane. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure, and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents. The diastereoisomer eluting later was collected as Example 599. HRMS calculated for C39H45ClN6O7S: 776.2759; found 777.2796 (M+H).

General Procedure (XVIIIa) Step A

1 eq. ethyl (2R)-3-[2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate (Preparation 26c), 2 eq. of the appropriate boronic acid derivative and 2.5 eq. Cs2CO3 were dissolved in THF-water (1:1) (0.1 M for Preparation 26c), then 0.1 eq. PdCl2×dppf was added. The mixture was heated under nitrogen at 100° C. in a microwave reactor until no further conversion was observed. Then it was diluted with brine and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure, and purified via flash chromatography using EtOAc and MeOH as eluents.

Step B

The product of Step A was dissolved in dioxane-water 1:1 (10 mL/mmol) and 10 eq. LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents separating the diastereoisomers.

Example 600 (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-cyanophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (XVIIIa) and (4-cyanophenyl)boronic acid as the appropriate boronic acid derivative, the diastereoisomer eluting later was collected as Example 600.

HRMS calculated for C44H46ClN7O5S: 819.2970; found 410.6565 (M+2H).

Example 601 (2R)-3-124(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-ethylphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (XVIIIa) and (4-ethylphenyl)boronic acid as the appropriate boronic acid derivative, the diastereoisomer eluting later was collected as Example 601.

HRMS calculated for C45H51ClN6O5S: 822.3330; found 412.1729 (M+2H).

Example 602 (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-hydroxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (XVIIIa) and (4-hydroxyphenyl)boronic acid as the appropriate boronic acid derivative, the diastereoisomer eluting later was collected as Example 602.

HRMS calculated for C43H47ClN6O6S: 810.2966; found 406.1541 (M+2H).

Example 603 (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-methoxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (XVIIIa) and (4-methoxyphenyl)boronic acid as the appropriate boronic acid derivative, the diastereoisomer eluting later was collected as Example 603.

HRMS calculated for C44H49ClN6O6S: 824.3123; found 413.1648 (M+2H).

Example 604 (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-ethoxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (XVIIIa) and (4-ethoxyphenyl)boronic acid as the appropriate boronic acid derivative, the diastereoisomer eluting later was collected as Example 604.

HRMS calculated for C45H51ClN6O6S: 838.3279; found 420.1700 (M+2H).

Example 605 (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[6-(6′-chloro-2,3′-bipyridin-5-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid and Example 606 (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(6-chloropyridin-3-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (XVIIIa) and (6-chloro-3-pyridyl)boronic acid as the appropriate boronic acid derivative Example 606 was collected as the secondly eluting diastereoisomer. HRMS calculated for C42H45Cl2N7O5S: 829.2580; found 415.6359 (M+2H). Overreaction at the Suzuki coupling was also observed and the later eluting diastereoisomer of this side product was collected as Example 605. HRMS calculated for C47H48Cl2N8O55: 906.2845; found 454.1481 (M+2H).

Example 607 (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(6-fluoropyridin-3-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (XVIIIa) and (6-fluoro-3-pyridyl)boronic acid as the appropriate boronic acid derivative, the diastereoisomer eluting later was collected as Example 607.

HRMS calculated for C42H45ClFN7O5S: 813.2875; found 407.6496 (M+2H).

Example 608 (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(6-methoxypyridin-3-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (XVIIIa) and (6-methoxy-3-pyridyl)boronic acid as the appropriate boronic acid derivative, the diastereoisomer eluting later was collected as Example 608. HRMS calculated for C43H48ClN7O6S: 825.3075; found 413.6608 (M+2H).

Example 609 (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(pyridin-3-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (XVIIIa) and 3-pyridylboronic acid as the appropriate boronic acid derivative, the diastereoisomer eluting later was collected as Example 609. HRMS calculated for C42H46ClN7O5S: 795.2970; found 398.6572 (M+2H).

Example 610 (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(1-methyl-1H-pyrazol-3-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

Using General Procedure (XVIIIa) and 1-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole as the appropriate boronic acid derivative, the diastereoisomer eluting later was collected as Example 610. HRMS calculated for C41H47ClN8O5S: 798.3079; found 400.1599 (M+2H).

Example 611 (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-ethynylthieno[2,3-d]pyrimidin-4-yl)oxy]propanoic Acid Step A

437 mg ethyl (2R)-3-[2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate (Preparation 26c) (0.5 mmol), 139 μL ethynyl(trimethyl)silane (1.0 mmol), 35 mg Pd(PPh3)2Cl2 (0.05 mmol) and 19 mg copper(I) iodide (0.1 mmol) were dissolved in 5 mL DIPA, then the mixture was stirred under nitrogen at 60° C. until no further conversion was observed. The reaction mixture was cooled to room temperature and 600 μl TBAF (0.6 mmol, 1 M in THF) was added and it was stirred for 30 minutes. Then the volatiles were evaporated under reduced pressure and the crude product was purified by flash chromatography using EtOAc and MeOH as eluents to obtain ethyl (2R)-3-[2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-ethynyl-thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate.

Step B

The product of Step A was hydrolyzed according to Step B of General Procedure (XVIIIa) and the diastereoisomer eluting later was collected as Example 611. HRMS calculated for C39H43ClN6O5S: 742.2704; found 743.2789 (M+H).

Example 612 (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[6-(but-1-yn-1-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid Step A

437 mg ethyl (2R)-3-[2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate (Preparation 26c) (0.5 mmol), 35 mg Pd(PPh3)2Cl2 (0.05 mmol) and 19 mg copper(I) iodide (0.1 mmol) were dissolved in 5 mL DIPA, then but-1-yne was bubbled through the reaction mixture, which was stirred at 60° C. until no further conversion was observed. Then the volatiles were evaporated under reduced pressure and the crude product was purified by flash chromatography using EtOAc and MeOH as eluents to obtain ethyl (2R)-3-[2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl]-2-[6-but-1-ynyl-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate.

Step B

The obtained intermediate was hydrolyzed according to Step B of General Procedure (XVIIIa) and the diastereoisomer eluting later was collected as Example 612. HRMS calculated for C41H47ClN6O5S: 770.3017; found 386.1594 (M+2H).

Example 613 (2R)-3-{2-R 1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(3-methoxyprop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid Step A

437 mg ethyl (2R)-3-[2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate (Preparation 26c) (0.5 mmol), 70 mg 3-methoxyprop-1-yne (1.0 mmol), 35 mg Pd(PPh3)2Cl2 (0.05 mmol) and 19 mg CuI (0.1 mmol) were dissolved in 5 mL DIPA and stirred under nitrogen at 60° C. until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude product was purified by flash chromatography using EtOAc and MeOH as eluents to obtain ethyl (2R)-3-[2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(3-methoxyprop-1-ynyl)thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate.

Step B

The product of Step A was hydrolyzed according to Step B of General Procedure (XVIIIa); the diastereoisomer eluting later was collected as Example 613. HRMS calculated for C41H47ClN6O65: 786.2966; found 787.3040 (M+H).

Example 614 (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-cyanothieno[2,3-d]pyrimidin-4-yl)oxy]propanoic Acid Step A

437 mg ethyl (2R)-3-[2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate (Preparation 26c) (0.5 mmol) and 224 mg CuCN (2.5 mmol) were stirred at 100° C. in 5 mL dry DMF until no further conversion was observed. Brine was added and the mixture was extracted with DCM. The combined organic phases were washed with brine, then dried over MgSO4 and concentrated under reduced pressure. The residue was purified via flash chromatography using EtOAc and MeOH as eluents to obtain ethyl (2R)-3-[2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-cyano-thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate.

Step B

The obtained intermediate was hydrolyzed according to Step B of General Procedure (XVIIIa) and the diastereoisomer eluting later was collected as Example 614. HRMS calculated for C38H42ClN7O5S: 743.2657; found 372.6390 (M+2H).

Example 615 (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(trifluoromethyl) thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid Step A

437 mg ethyl (2R)-3-[2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-iodo-thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate (Preparation 26c) (0.75 mmol), 28.2 mg 1,10-phenanthroline (0.156 mmol), 29.7 mg copper(I) iodide (0.156 mmol), 130 mg potassium fluoride (2.23 mmol), 330 μL trimethyl(trifluoromethyl)silane (2.23 mmol) and 250 μL trimethyl borate (2.23 mmol) were dissolved in 5 mL dry DMSO and the mixture was stirred at room temperature overnight under argon atmosphere. Then brine was added and the mixture was extracted with DCM. The combined organic phases were washed with brine, dried over MgSO4, and concentrated under reduced pressure. The crude product was purified via flash chromatography using EtOAc and MeOH as eluents to obtain ethyl (2R)-3-[2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(trifluoromethyl)thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate.

Step B

The product of Step A was hydrolyzed according to Step B of General Procedure (XVIIIa) and the diastereoisomer eluting later was collected as Example 615. HRMS calculated for C38H42ClF3N6O55: 786.2578; found 394.1372 (M+2H).

Example 616 (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-{4-[2-(morpholin-4-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl)oxy]propanoic Acid Step A

420 mg ethyl (2R)-3-[2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-hydroxyphenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate (see Step A of Example 602) (0.5 mmol), 182 μl 2-(morpholin-4-yl)ethanol (1.5 mmol) and 393 mg triphenylphosphine (3.0 mmol) were dissolved in 10 mL dry toluene, then 261 mg ditertbutyl azodicarboxylate (3.0 mmol) was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. Then the volatiles were evaporated under reduced pressure and the residue was purified via flash chromatography using EtOAc and MeOH as eluents to give ethyl (2R)-3-[2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methyl piperazin-1-yl)ethoxy]phenyl]-6-[4-(2-(morpholin-4-yl)ethoxy)phenyl]thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate.

Step B

The product of Step A was hydrolyzed according to Step B of General Procedure (XVIIIa) and the diastereoisomer eluting later was collected as Example 616. HRMS calculated for C49H58ClN7O7S: 923.3807; found 462.6977 (M+2H).

Example 617 (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(3-methoxypropyl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic Acid

350 mg ethyl (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(3-methoxyprop-1-yn-1-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}propanoic acid (Example 613) (0.43 mmol) and 46 mg Selcat Q6 were dissolved in 5 mL methanol, then 187 mg tert-butylamine borane (2.2 mmol) was added and the mixture was stirred at room temperature until no further conversion was observed. The mixture was filtered through celite, then the filtrate was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The residue was purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents to obtain Example 617. HRMS calculated for C41H51ClN6O65: 790.3279; found 791.3329 (M+H).

Example 618 (2R)-2-{[6-(6-aminopyridin-3-yl)-(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}propanoic Acid

Using General Procedure (XVIIIa) and 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-amine as the appropriate boronic acid derivative; the diastereoisomer eluting later was collected as Example 618. HRMS calculated for C42H47ClN8O5S: 810.3079; found 811.3129 (M+H).

Example 619 (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-[6-(morpholin-4-yl)pyridin-3-yl]thieno[2,3-d]pyrimidin-4-yl)oxy]propanoic Acid Step A

250 mg ethyl (2R)-3-[2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(6-fluoro-3-pyridyl)thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate (see Step A of Example 607) (0.29 mmol) and 258 μL morpholine (2.90 mmol) were heated at 150° C. in a microwave reactor until no further conversion was observed. The volatiles were evaporated under reduced pressure and the residue was purified via flash chromatography using EtOAc and MeOH as eluents to give ethyl (2R)-3-[2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(6-morpholino-3-pyridyl)thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate.

Step B

The product of Step A was hydrolyzed according to Step B of General Procedure (XVIIIa) and the diastereoisomer eluting later was collected as Example 619. HRMS calculated for C46H53ClN8O6S: 880.3497; found 441.1825 (M+2H).

Example 620 (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-{6-[(2-methoxyethyl)amino]pyridin-3-yl}thieno[2,3-d]pyrimidin-4-yl)oxy]propanoic Acid Step A

300 mg ethyl (2R)-3-[2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(6-fluoro-3-pyridyl)thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate (see Step A of Example 607) (0.35 mmol) and 258 μL 2-methoxyethanamine (3.50 mmol) were heated at 150° C. in a microwave reactor until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude product was purified via flash chromatography using EtOAc and MeOH as eluents to give ethyl (2R)-3-[2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-[6-(2-methoxyethylamino)-3-pyridyl]thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate.

Step B

The product of Step A was hydrolyzed according to Step B of General Procedure (XVIIIa) and the diastereoisomer eluting later was collected as Example 620. HRMS calculated for C45H53ClN8O6S: 868.3497; found 435.1839 (M+2H).

Example 621 (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-{6-[2-(morpholin-4-yl)ethoxy]pyridin-3-yl}thieno[2,3-d]pyrimidin-4-yl)oxy]propanoic Acid Step A

260 mg ethyl (2R)-3-[2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(6-fluoro-3-pyridyl)thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate (Step A of Example 607) (0.31 mmol), 405 mg 2-(morpholin-4-yl)ethanol (3.10 mmol) and 293 mg cesium carbonate (0.93 mmol) were stirred at 60° C. in 10 mL dry tert-butanol until no further conversion was observed. Brine was added and the mixture was extracted with DCM. The combined organic phases were washed with brine, then dried over MgSO4, and concentrated under reduced pressure. The residue was purified via flash chromatography using EtOAc and MeOH as eluents to give ethyl (2R)-3-[2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl]-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-[6-(2-morpholinoethoxy)-3-pyridyl]thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate.

Step B

The product of Step A was hydrolyzed according to Step B of General Procedure (XVIIIa) and the diastereoisomer eluting later was collected as Example 621. HRMS calculated for C48H57ClN8O7S: 924.3759; found 463.1961 (M+2H).

Example 622 (2R)-3-{2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-[((5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-[6-(2-methoxyethoxy) pyridin-3-yl]thieno[2,3-d]pyrimidin-4-yl)oxy]propanoic Acid

200 mg ethyl (2R)-3-[2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-[5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(6-fluoro-3-pyridyl)thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate (see Step A of Example 607) (0.24 mmol), 56 μL 2-methoxyethanol (0.72 mmol) and 232 mg cesium carbonate (0.72 mmol) were stirred at 70° C. in 5 mL dry tert-butanol until no further conversion was observed. Brine was added and the mixture was extracted with DCM. The combined organic phases were washed with brine, then dried over MgSO4, and concentrated under reduced pressure. The residue was purified via flash chromatography using EtOAc and MeOH as eluents to give ethyl (2R)-3-[2-[(1-butyl-1H-pyrazol-5-yl)methoxy]phenyl}-2-[5-[3-chloro-2-methyl-4-[2-(4-methyl piperazin-1-yl)ethoxy]phenyl]-6-[6-(2-methoxyethoxy)-3-pyridyl]thieno[2,3-d]pyrimidin-4-yl]oxy-propanoate.

Step B

The product of Step A was hydrolyzed according to Step B of General Procedure (XVIIIa) and the diastereoisomer eluting later was collected as Example 622. HRMS calculated for C45H52ClN7O7S: 869.3337; found 435.6737 (M+2H).

General Procedure (XXa)

The appropriate acid was dissolved in ethanol (20 mL/g) containing 1% cc. sulfuric acid and the mixture was stirred at 70° C. until no further conversion was observed. Water was added to the mixture and it was neutralized with NaHCO3, extracted with DCM, the combined organic phases were dried with Na2SO4 and concentrated under reduced pressure. The crude ester was purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

Example 623 ethyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(propan-2-yl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoate

Starting from Example 182 using General Procedure (XXa), Example 623 was obtained.

HRMS calculated for C42H46ClFN6O6S: 816.2872; found 409.1516 (M+2H).

Example 624 ethyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[1-(propan-2-yl)-1H-pyrazol-5-yl]methoxy}phenyl)propanoate

Starting from Example 71 using General Procedure (XXa), Example 624 was obtained.

HRMS calculated for C44H48ClFN6O5S: 826.3079; found 414.1627 (M+2H).

Example 625 ethyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(5-fluorofuran-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-methoxypyrimidin-4-yl)methoxy]phenyl}propanoate

Starting from Example 176 using General Procedure (XXa), Example 625 was obtained.

HRMS calculated for C4iH42ClFN6O7S: 816.2508; found 817.2629 (M+H).

Example 626 ethyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2-methoxypyrimidin-4-yl)methoxy]phenyl}propanoate

Starting from Example 54 using General Procedure (XXa), Example 626 was obtained.

HRMS calculated for C43H44ClFN6O6S: 826.2716; found 414.1440 (M+2H).

Example 627 ethyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(furan-2-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxy phenyl)propanoate

Starting from Example 209 using General Procedure (XXa), Example 627 was obtained.

HRMS calculated for C36H39ClN4O6S: 690.2279; found 691.2347 (M+H).

Example 628 ethyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2R)-tetrahydrofuran-2-ylmethoxy]phenyl}propanoate

Starting from Example 2 using General Procedure (XXa), Example 628 was obtained.

HRMS calculated for C42H46ClFN4O6S: 788.2811; found 789.2875 (M+H).

Example 629 ethyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(morpholin-4-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2R)-tetrahydrofuran-2-ylmethoxy]phenyl}propanoate

Starting from Example 648 using General Procedure (XXa), Example 629 was obtained.

HRMS calculated for C41H43ClFN3O7S: 775.2494; found 776.2560 (M+H).

Example 630 ethyl (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2R)-tetrahydrofuran-2-ylmethoxy]phenyl}propanoate

Starting from Example 126 using General Procedure (XXa), Example 630 was obtained.

HRMS calculated for C39H41ClFN3O6S: 733.2389; found 734.2469 (M+H).

Example 631 ethyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrazin-2-ylmethoxy)phenyl]propanoate

Starting from Example 91 using General Procedure (XXa), Example 631 was obtained.

HRMS calculated for C42H42ClFN6O5S: 796.2610; found 797.2695 (M+H).

Example 632 ethyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(morpholin-4-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(pyrazin-2-ylmethoxy)phenyl]propanoate

Starting from Example 148 using General Procedure (XXa), Example 632 was obtained.

HRMS calculated for C41H39ClFN5O6S: 783.2294; found 784.2387 (M+H).

Example 633 ethyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(thiophen-3-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoate

Starting from Example 568 using General Procedure (XXa), Example 633 was obtained.

HRMS calculated for C36H39ClN4O5S2: 706.2050; found 707.2111 (M+H).

Example 634 ethyl (2R)-2-{[(5Sa)-5-{3-chloro-4-[2-(dimethylamino)ethoxy]-2-methylphenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(2,2,2-trifluoroethoxy)phenyl]propanoate

Starting from Example 127 using General Procedure (XXa), Example 634 was obtained.

HRMS calculated for C36H34ClF4N3O5S: 731.1844; found 732.1929 (M+H).

Example 635 ethyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(2,2,2-trifluoroethoxy)phenyl]propanoate

Starting from Example 3 using General Procedure (XXa), Example 635 was obtained.

HRMS calculated for C39H39ClF4N4O5S: 786.2266; found 787.2334 (M+H).

Example 636 ethyl (2R)-2-{[(5Sa)-5-(3-chloro-4-hydroxy-2-methylphenyl)-6-(thiophen-3-yl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoate

Starting from Example 715 using General Procedure (XXa), Example 636 was obtained.

HRMS calculated for C29H25ClN2O5S2: 580.0893; found 581.0953 (M+H).

Example 637 ethyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(morpholin-4-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-[2-(2,2,2-trifluoroethoxy)phenyl]propanoate

Starting from Example 657 using General Procedure (XXa), Example 637 was obtained.

HRMS calculated for C38H36ClF4N3O6S: 773.1949; found 774.2023 (M+H).

Example 638 ethyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2,2,2-trifluoroethoxy)pyrimidin-4-yl]methoxy}phenyl)propanoate

Starting from Example 58 using General Procedure (XXa), Example 638 was obtained.

HRMS calculated for C44H43ClF4N6O6S: 894.2589; found 895.2688 (M+H).

Example 639 ethyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-{[2-(2-methoxyphenyl)pyrimidin-4-yl]methoxy}phenyl)propanoate

Starting from Example 30 using General Procedure (XXa), Example 639 was obtained.

HRMS calculated for C49H48ClFN6O6S: 902.3029; found 452.1594 (M+2H).

Example 640 2,3-dihydro-1H-inden-5-yl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoate

69 mg (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoic acid (Example 1) (0.10 mmol), 20 mg 2,3-dihydro-1H-inden-5-ol (0.15 mmol), 0.028 mL triethylamine (0.20 mmol) and 78 mg PyBOP (0.15 mmol) were dissolved in 3 mL DCM and the reaction mixture was stirred at room temperature until no further conversion was observed. Water was added and the mixture was extracted with DCM, and the combined organic phases were dried with Na2SO4 and concentrated under reduced pressure. The crude ester was purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents resulting Example 640. HRMS calculated for C45H44ClFN4O5S: 806.2705; found 807.2820 (M+H).

Example 641 2,2,2-trifluoroethyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoate

69 mg (2R)-2-[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl]-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoic Acid (Example 1) (0.10 mmol), 0.011 mL trifluoroethanol (0.15 mmol), 0.028 mL triethylamine (0.20 mmol) and 78 mg PyBOP (0.15 mmol) were dissolved in 3 mL DCM and the reaction mixture was stirred at room temperature until no further conversion was observed. Water was added and the mixture was extracted with DCM, and the combined organic phases were dried with Na2SO4 and concentrated under reduced pressure. The crude ester was purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents resulting Example 641. HRMS calculated for C38H37ClF4N4O5S: 772.2109; found 773.2188 (M+H).

Example 642 ethyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoate

Starting from Example 1 using General Procedure (XXa), Example 642 was obtained.

HRMS calculated for C38H40ClFN4O5S: 718.2392; found 719.2475 (M+H).

Example 643 {[(2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoyl]oxy}methyl 2,2-dimethylpropanoate

69 mg (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoic acid (Example 1) (0.10 mmol), 15 mg chloromethyl 2,2-dimethylpropanoate (0.10 mmol), 30 mg sodium iodide (0.20 mmol) and 65 mg Cs2CO3 (0.20 mmol) were dissolved in 1 mL DMF and the reaction mixture was stirred at room temperature until no further conversion was observed. Water was added and the mixture was extracted with DCM, and the combined organic phases were dried with Na2SO4 and concentrated under reduced pressure. The crude ester was purified via preparative reversed phase chromatography using 25 mM aqueous TFA solution and MeCN as eluents resulting Example 643. HRMS calculated for C42H46ClFN4O7S: 804.2760; found 805.2822 (M+H).

Example 644 (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl (2R)-2-{[(5Sa)-5-{3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoate

69 mg (2R)-2-[(5Sa)-5-[3-chloro-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoic acid (Example 1) (0.10 mmol), 15 mg 4-(chloromethyl)-5-methyl-1,3-dioxol-2-one (0.10 mmol), 30 mg sodium iodide (0.20 mmol) and 65 mg Cs2CO3 (0.20 mmol) were dissolved in 1 mL DMF and the reaction mixture was stirred at room temperature until no further conversion was observed. Water was added and the mixture was extracted with DCM, and the combined organic phases were dried with Na2SO4 and concentrated under reduced pressure. The crude ester was purified via preparative reversed phase chromatography using 25 mM aqueous TFA solution and MeCN as eluents resulting Example 644. HRMS calculated for C41H40N4O8FSCl: 802.2239; found 803.2298 (M+H).

General Procedure (XXIa) Step A

1 eq. phenol derivative, 2 eq. of the appropriate alcohol and 2 eq. PPh3 were dissolved in dry toluene (0.2 M for the phenol), then 2 eq. ditertbutyl azodicarboxylate was added. The mixture was stirred at 50° C. under nitrogen until no further conversion was observed. The volatiles were evaporated under reduced pressure and the crude intermediate was purified via flash chromatography using EtOAc and MeOH as eluents.

Step B

The product of Step A was dissolved in dioxane-water (1:1, 10 mL/mmol) and 10 eq. LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure, and purified via preparative reversed phase chromatography using 25 mM aqueous NH4HCO3 solution and MeCN as eluents.

General Procedure (XXIb)

1 eq. ester was dissolved in dioxane-water (1:1, 10 mL/mmol) and 10 eq. LiOH×H2O was added. The mixture was stirred at room temperature until no further conversion was observed. Then it was diluted with brine, neutralized with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4, concentrated under reduced pressure. If necessary the crude product was purified via preparative reversed phase chromatography using MeCN and 25 mM aqueous NH4HCO3 solution as eluents.

Example 645 (2R)-2-{[(5Sa)-5-(4-{2-[4-(4-aminobutyl)piperazin-1-yl]ethoxy}-3-chloro-2-methylphenyl)-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-{2-[(2R)-tetrahydrofuran-2-ylmethoxy]phenyl}propanoic Acid

Using General Procedure (XXIa), ethyl (2R)-2-[(5Sa)-5-(3-chloro-4-hydroxy-2-methyl-phenyl)-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-[2-[[(2R)-tetrahydrofuran-2-yl]methoxy]phenyl]propanoate (Preparation 6r) as the phenol and 2-[4-(4-aminobutyl)piperazin-1-yl]ethanol as the appropriate alcohol, Example 645 was obtained.

HRMS calculated for C43H49ClFN5O6S: 817.3076; found 818.3129 (M+H).

Example 646 (2R)-2-{[(5Sa)-5-{3-bromo-2-methyl-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid Step A

531 mg ethyl (2R)-2-[5-bromo-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (Preparation 4n) (1.00 mmol), 598 mg [2-bromo-3-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]-triisopropyl-silane (Preparation 5o) (1.27 mmol), 71 mg AtaPhos (0.10 mmol) and 652 mg Cs2CO3 (2.00 mmol) were dissolved in 8 mL dioxane and 2 mL water. The mixture was heated under nitrogen at 110° C. for 15 minutes in a microwave reactor. Then 1.2 mL TBAF (1.20 mmol in 1 M THF) was added and the mixture was stirred for 5 minutes at room temperature. Then it was diluted with water, acidified to pH 4 with 2 M HCl, and extracted with DCM. The combined organic phases were dried over Na2SO4 and concentrated under reduced pressure. The crude intermediate was purified via flash chromatography using heptane and EtOAc as eluents and the diastereoisomer eluting later was collected as ethyl (2R)-2-[(5Sa)-5-(3-bromo-4-hydroxy-2-methyl-phenyl)-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate.

Step B

Using the product of Step A as the phenol and 2-(4-methylpiperazin-1-yl)ethanol as the appropriate alcohol in General Procedure (XXIa), Example 646 was obtained. HRMS calculated for C36H36BrFN4O5S: 734.1574; found 735.1637 (M+H).

Example 647 (2R)-2-{[(5Sa)-5-{2,3-dichloro-4-[2-(4-methylpiperazin-1-yl)ethoxy]phenyl}-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy}-3-(2-methoxyphenyl)propanoic Acid Step A

266 mg ethyl (2R)-2-[5-bromo-6-(4-fluorophenyl)thieno[2,3-d]pyrimidin-4-yl]oxy-3-(2-methoxyphenyl)propanoate (Preparation 4n) (0.50 mmol), 298 mg 14242,3-dichloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy]ethyl]-4-methyl-piperazine (Preparation 5p) (0.70 mmol), 35 mg AtaPhos (0.05 mmol) and 489 mg Cs2CO3 (1.50 mmol) wer