Patents by Inventor Sanjay Ratilal Patel

Sanjay Ratilal Patel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20160193200
    Abstract: The invention provides a compound which is (a) a phenylamide derivative of formula (I) or a tautomer thereof, or (b) a pharmaceutically acceptable salt, N-oxide, hydrate, prodrug or solvate thereof: wherein R1, R2, R3, R4, R5, R6 and R7 are as defined herein. The compounds are useful in the treatment of diseases mediated by HSP90.
    Type: Application
    Filed: March 17, 2016
    Publication date: July 7, 2016
    Inventors: Alastair David Graham Donald, Joanne McDermott, Sanjay Ratilal Patel, David Festus Charles Moffat
  • Patent number: 9321718
    Abstract: The invention provides a compound which is (a) a phenylamide derivative of formula (I) or a tautomer thereof, or (b) a pharmaceutically acceptable salt, N-oxide, hydrate, prodrug or solvate thereof: wherein R1, R2, R3, R4, R5, R6 and R7 are as defined herein. The compounds are useful in the treatment of diseases mediated by HSP90.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: April 26, 2016
    Assignee: CHROMA THERAPEUTICS LTD.
    Inventors: Alastair David Graham Donald, Joanne McDermott, Sanjay Ratilal Patel, David Festus Charles Moffat
  • Patent number: 9133104
    Abstract: Compounds of formula (I) are inhibitors of histone deacetylase activity, and are useful in the treatment of, for example, cancers, wherein R1 is a carboxylic acid group (—COOH), or an ester group which is hydrolysable by one or more intracellular carboxyesterase enzymes to a carboxylic acid group; R2 is the side chain of a natural or non-natural alpha amino acid; Y is a bond, —C(?O), —S(?O)2—, —C(?O)O—, —C(O)NR3—, —C(?S)—NR3, —C(?NH)NR3 or —S(?O)2NR3— wherein R3 is hydrogen or optionally substituted C1-C6 alkyl; L1 is a divalent radical of formula -(Alk1)m(Q)n(Alk2)p- wherein m, n and p are independently 0 or 1, Q is (i) an optionally substituted divalent mono- or bicyclic carbocyclic or heterocyclic radical having 5-13 ring members, or (ii), in the case where both m and p are 0, a divalent radical of formula —X2-Q1- or -Q1-X2— wherein X2 is —O—, S— or NRA— wherein RA is hydrogen or optionally substituted C1-C3 alkyl, and Q1 is an optionally substituted divalent mono- or bicyclic carbocyclic or heterocyclic r
    Type: Grant
    Filed: February 13, 2014
    Date of Patent: September 15, 2015
    Assignee: Chroma Therapeutics Ltd.
    Inventors: Alan Hornsby Davidson, Sanjay Ratilal Patel, Francesca Ann Mazzei, Stephen John Davies, Alan Hastings Drummond, David Festus Charles Moffat, Kenneth William John Baker, Alastair David Graham Donald
  • Patent number: 8962825
    Abstract: Compounds of formula (I), and salts, N-oxides, hydrates and solvates thereof are histone deacetylase inhibitors and are useful in the treatment of cell proliferative diseases, including cancers: wherein Q, V and W independently represent —N? or —C?; B is a divalent radical selected from (B1), (B2), (B3), (B4), (B5) and (B6). wherein the bond marked * is linked to the ring containing Q, V and W through -[Linker1]- and the bond marked ** is linked to A through -[Linker2]-; A is an optionally substituted mono-, bi- or tri-cyclic carbocyclic or heterocyclic ring system; -[Linker1]- and -[Linker2]- independently represent a bond, or a divalent linker radical; and R is (a) a radical of formula R1R2CHNH—Y-L1-X1—(CH2)z— or (b) a radical of formula R-L1-Y1—(CH2)z—.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: February 24, 2015
    Assignee: GlaxoSmithKline Intellectual Property Development Limited
    Inventors: David Charles Festus Moffat, Sanjay Ratilal Patel, Francesca Ann Day, Andrew James Belfield, Alistair David Graham Donald, Alan Hornsby Davidson, Alan Hastings Drummond
  • Publication number: 20140163042
    Abstract: Compounds of formula (I) are inhibitors of histone deacetylase activity, and are useful in the treatment of, for example, cancers, wherein R1 is a carboxylic acid group (—COOH), or an ester group which is hydrolysable by one or more intracellular carboxyesterase enzymes to a carboxylic acid group; R2 is the side chain of a natural or non-natural alpha amino acid; Y is a bond, —C(?O), —S(?O)2—, —C(?O)O—, —C(O)NR3—, —C(?S)—NR3, —C(?NH)NR3 or —S(?O)2NR3— wherein R3 is hydrogen or optionally substituted C1-C6 alkyl; L1 is a divalent radical of formula -(Alk1)m(Q)n(Alk2)p- wherein m, n and p are independently 0 or 1, Q is (i) an optionally substituted divalent mono- or bicyclic carbocyclic or heterocyclic radical having 5-13 ring members, or (ii), in the case where both m and p are 0, a divalent radical of formula —X2-Q1- or -Q1-X2— wherein X2 is —O—, S— or NRA— wherein RA is hydrogen or optionally substituted C1-C3 alkyl, and Q1 is an optionally substituted divalent mono- or bicyclic carbocyclic or heterocyclic r
    Type: Application
    Filed: February 13, 2014
    Publication date: June 12, 2014
    Applicant: Chroma Therapeutics Ltd.
    Inventors: Alan Hornsby Davidson, Sanjay Ratilal Patel, Francesca Ann Mazzei, Stephen John Davies, Alan Hastings Drummond, David Festus Charles Moffat, Kenneth William John Baker, Alastair David Graham Donald
  • Patent number: 8686032
    Abstract: Compounds of formula (I) are inhibitors of histone deacetylase activity, and are useful in the treatment of, for example, cancers:
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: April 1, 2014
    Assignee: Chroma Therapeutics Ltd.
    Inventors: Alan Hornsby Davidson, Sanjay Ratilal Patel, Francesca Ann Mazzei, Stephen John Davies, Alan Hastings Drummond, David Festus Moffat, Kenneth William John Baker, Alistair David Graham Donald
  • Publication number: 20130143926
    Abstract: The invention provides a compound which is (a) a phenylamide derivative of formula (I) or a tautomer thereof, or (b) a pharmaceutically acceptable salt, N-oxide, hydrate, prodrug or solvate thereof: wherein R1, R2, R3, R4, R5, R6 and R7 are as defined herein. The compounds are useful in the treatment of diseases mediated by HSP90.
    Type: Application
    Filed: June 10, 2011
    Publication date: June 6, 2013
    Inventors: Alastair David Graham Donald, Joanne McDermott, Sanjay Ratilal Patel, David Festus Charles Moffat
  • Publication number: 20130116318
    Abstract: Compounds of formula (I) are inhibitors of histone deacetylase activity, and are useful in the treatment of, for example, cancers:
    Type: Application
    Filed: December 1, 2010
    Publication date: May 9, 2013
    Applicant: Chroma Therapeutics Ltd.
    Inventors: Alan Hornsby Davidson, Sanjay Ratilal Patel, Francesca Ann Mazzei, Stephen John Davies, Alan Hastings Drummond, David Festus Moffat, Kenneth William John Baker, Alistair David Graham Donald
  • Publication number: 20110190306
    Abstract: Compounds of formula (I) are PLK inhibitors, useful for the treatment of cell proliferative diseases: wherein R1 is hydrogen, or an optionally substituted (C1-C6)alkyl, (C2-C6)alkenyl, (C2-C6)alkynyl or (C3-C6)cycloalkyl group; R2 is hydrogen, or an optionally substituted (C1-C6)alkyl, (C2-C6)alkenyl, (C2-C6)alkynyl or (C3-C6)cycloalkyl group; R3 is hydrogen, —CN, hydroxyl, halogen, optionally substituted (C1C6)alkyl, (C2-C6)alkenyl, (C2-C6)alkynyl or (C3-C6)cycloalkyl, —NR5R6 or C1-C4 alkoxy, wherein R5 and R6 are independently hydrogen or optionally substituted (C1-C6)alkyl; ring A is an optionally substituted mono- or bi-cyclic carbocyclic or heterocyclic ring or a ring system having up to 12 ring atoms; T is a radical of formula R-L1-Y1— wherein L1 and Y1 are as defined in the claims and R is an carbon-linked, alpha alpha disubstituted amino acid or amino acid ester residue.
    Type: Application
    Filed: April 23, 2009
    Publication date: August 4, 2011
    Applicant: CHROMA THERAPEUTICS LTD.
    Inventors: David Festus Charles Moffat, Sanjay Ratilal Patel, Kenneth William John Baker, Carl Leslie North
  • Patent number: 7973181
    Abstract: Compounds of formula (I) are inhibitors of histone deacetylase activity, and are useful in the treatment of, for example, cancers: wherein Y1 is a bond, —(C?O)—, —S(O2)—, —C(?O)O—, —OC(?O)—, —(C?O)NR3—, —NR3(C?O)—, —S(O2)NR3—, —NR3S(O2)—, or —NR3(C?O)NR5—, wherein R3 and R5 are independently hydrogen or optionally substituted (C1-C6)alkyl, L1 is a divalent radical of formula -(Alk1)m(Q)n(Alk2)p wherein m, n, p, Alk1, Alk2 and Q are as defined in the claims; z is 0 or 1; A represents an optionally substituted mono-, bi— or tri-cyclic carbocyclic or heterocyclic ring system; -[Linker]- represents a divalent linker radical; R is a radical of formula (X) or (Y): wherein R1 is a carboxylic acid group (—COOH), or an ester group which is hydrolysable by one or more intracellular carboxylesterase enzymes to a carboxylic acid group; R4 is hydrogen; or optionally substituted C1-C6 alkyl, C3-C7cycloalkyl, aryl, aryl(C1-C6 alkyl)-, heteroaryl, heteroaryl(C1-C6 alkyl)-, —(C?O)R3, —(C?O)OR3, or —(C?O)NR3 wherein R
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: July 5, 2011
    Assignee: Chroma Therapeutics Ltd.
    Inventors: Alan Hornsby Davidson, Sanjay Ratilal Patel, David Festus Charles Moffat
  • Patent number: 7939666
    Abstract: Compounds of formula (I) are inhibitors of histone deacetylase activity, and are useful in the treatment of, for example, cancers.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: May 10, 2011
    Assignee: Chroma Therapeutics Ltd.
    Inventors: Alan Hornsby Davidson, Sanjay Ratilal Patel, Francesca Ann Mazzei, Stephen John Davies, Alan Hastings Drummond, David Festus Moffat, Kenneth William John Baker, Alistair David Graham Donald
  • Patent number: 7932246
    Abstract: Compounds of formula: (I), and salts, N-oxides, hydrates and solvates thereof are histone deacetylase inhibitors and are useful in the treatment of cell proliferative diseases, including cancers: (I) wherein Q, V and W independently represent —N? or —C?; B is a divalent radical selected from: (IIA), (IIB), (IIC), (IID), and (IIE). Wherein the bond marked * is linked to the ring containing Q, V and W through -[Linker1]- and the bond marked ** is linked to A through -[Linker2]-; A is an optionally substituted mono-, bi- or tri-cyclic carbocyclic or heterocyclic ring system; and -[Linker1]- and -[Linker2]- independently represent a bond, or a divalent linker radical.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: April 26, 2011
    Assignee: Chroma Therapeutics Ltd.
    Inventors: David Festus Charles Moffat, Sanjay Ratilal Patel, Francesca Ann Mazzei, Andrew James Belfield, Sandra Van Meurs
  • Publication number: 20100317678
    Abstract: Compounds of formula (I), and salts, N-oxides, hydrates and solvates thereof are histone deacetylase inhibitors and are useful in the treatment of cell proliferative diseases, including cancers: wherein Q, V and W independently represent —N? or —C?; B is a divalent radical selected from (B1), (B2), (B3), (B4), (B5) and (B6).
    Type: Application
    Filed: October 30, 2006
    Publication date: December 16, 2010
    Applicant: CHROMA THERAPEUTICS LTD.
    Inventors: David Festus Charles Moffat, Francesca Ann Day, Sanjay Ratilal Patel, Andrew James Belfield, Alistair David Graham Donald, Alan Hornsby Davidson, Alan Hastings Drummond
  • Publication number: 20100216802
    Abstract: Compound of formula (I) are inhibitors of Polo-like kinases (PLKs), and are useful in treatment of cell proliferative diseases: wherein R1 and R2 are hydrogen, or an optionally substituted (C1-C6)alkyl, (C2-C6)alkenyl, (C2-C6)alkynyl or (C3-C6)cycloalkyl group; R3 and R3? are independently selected from hydrogen, —CN, hydroxyl, halogen, optionally substituted (C1-C6)alkyl, (C2-C6)alkenyl, (C2-C6)alkynyl or (C3-C6)cycloalkyl, —NR5R6 or C1-C4 alkoxy, wherein R5 and R6 are independently hydrogen or optionally substituted (C1-C6)alkyl; ring A is an optionally substituted mono- or bi-cyclic carbocyclic or heterocyclic ring or a ring system having up to 12 ring atoms; T is a radical of formula R-L1-Y1— wherein R is an alpha amino acid or alpha amino acid ester motif, linked to ring A by linker R-L1-Y1— as defined in the claims.
    Type: Application
    Filed: October 19, 2007
    Publication date: August 26, 2010
    Applicant: CHROMA THERAPEUTICS LTD.
    Inventors: David Festus Charles Moffat, Sanjay Ratilal Patel, Stephen John Davies, Kenneth William John Baker, Oliver James Philps
  • Publication number: 20100152155
    Abstract: Compounds of formula: (I), and salts, N-oxides, hydrates and solvates thereof are histone deacetylase inhibitors and are useful in the treatment of cell proliferative diseases, including cancers: (I) wherein Q, V and W independently represent —N? or —C?; B is a divalent radical selected from: (IIA), (IIB), (IIC), (IID), and (IIE). Wherein the bond marked * is linked to the ring containing Q, V and W through -[Linker1]- and the bond marked ** is linked to A through -[Linker2]-; A is an optionally substituted mono-, bi- or tri-cyclic carbocyclic or heterocyclic ring system; and -[Linker1]- and -[Linker2]- independently represent a bond, or a divalent linker radical.
    Type: Application
    Filed: May 15, 2006
    Publication date: June 17, 2010
    Applicant: CHROMA THERAPEUTICS LTD.
    Inventors: David Festus Charles Moffat, Sanjay Ratilal Patel, Francesca Ann Mazzei, Andrew James Belfield, Sandra Van Meurs
  • Publication number: 20100004250
    Abstract: Compounds of formula (I) are inhibitors of Polo-like kinases (PLKs), and are useful, inter alia, in the treatment of proliferative diseases: wherein R1 is hydrogen, or a (C1-C6)alkyl, (C2-C6)alkenyl, (C2-C6)alkynyl or (C3-C6)cycloalkyl group; R2 is hydrogen, or an optionally substituted (C1-C6)alkyl, (C2-C6)alkenyl, (C2-C6)alkynyl or (C3-C6)cycloalkyl group; R3 and R3? are independently selected from hydrogen, —CN, hydroxyl, halogen, optionally substituted (C1-C6)alkyl, (C2-C6)alkenyl, (C2-C6)alkynyl or (C3-C6)cycloalkyl, —NR6R7 or C1-C4 alkoxy, wherein R6 and R7 are independently hydrogen or optionally substituted (C1-C6)alkyl; ring A is an optionally substituted mono- or bi-cyclic carbocyclic or heterocyclic ring or ring system having up to 12 ring atoms; T is a radical of formula (II) R4R5CH—NH—Y-L1-X1—??(II) Wherein R4 is a carboxylic acid group (—COOH), or an ester group which is hydrolysable by one or more intracellular esterase enzymes to a carboxylic acid group; R5 is the side chain of a natura
    Type: Application
    Filed: September 25, 2007
    Publication date: January 7, 2010
    Applicant: CHROMA THERAPEUTICS LTD.
    Inventors: Oliver James Philips, Julie Mathilde Thibaud, Carl Leslie North, David Festus Moffat, Sanjay Ratilal Patel
  • Publication number: 20090298924
    Abstract: Compounds of formula (I) are inhibitors of histone deacetylase activity, and are useful in the treatment of, for example, cancers: wherein Y1 is a bond, —(C?O)—, —S(O2)—, —C(?O)O—, —OC(?O)—, —(C?O)NR3—, —NR3(C?O)—, —S(O2)NR3—, —NR3S(O2)—, or —NR3(C?O)NR5—, wherein R3 and R5 are independently hydrogen or optionally substituted (C1-C6)alkyl, L1 is a divalent radical of formula -(Alk1)m(O)n(Alk2)p— wherein m, n, p, Alk1, Alk2 and Q are as defined in the claims; z is 0 or 1; A represents an optionally substituted mono-, bi- or tri-cyclic carbocyclic or heterocyclic ring system; -[Linker]- represents a divalent linker radical; R is a radical of formula (X) or (Y): wherein R1 is a carboxylic acid group (—COOH), or an ester group which is hydrolysable by one or more intracellular carboxylesterase enzymes to a carboxylic acid group; R4 is hydrogen; or optionally substituted C1-C6 alkyl, C3-C7cycloalkyl, aryl, aryl(C1-C6 alkyl)-, heteroaryl, heteroaryl(C1-C6 alkyl)-, —(C?O)R3, —(C?O)OR3, or —(C?O)NR3 wherein R
    Type: Application
    Filed: May 4, 2006
    Publication date: December 3, 2009
    Applicant: Chroma Therapeutics Ltd
    Inventors: Alan Hornsby Davidson, Sanjay Ratilal Patel, David Festus Charles Moffat
  • Publication number: 20090291978
    Abstract: Compounds of formula (I) are inhibitors of histone deacetylase activity, and are useful in the treatment of, for example, cancers, wherein R1 is a carboxylic acid group (—COOH), or an ester group which is hydrolysable by one or more intracellular carboxyesterase enzymes to a carboxylic acid group; R2 is the side chain of a natural or non-natural alpha amino acid; Y is a bond, C(?O)—, —S(?O)2—, —C(—O)O—, —C(O)NR3—, —C(?S)—NR3, —C(?NH)NR3 or —S(?O)2NR3— wherein R3 is hydrogen or optionally substituted C1-C6 alkyl; L is a divalent radical of formula -(Alk1)m(O)n(Alk2)p— wherein m, n and p are independently 0 or 1, Q is (i) an optionally substituted divalent mono- or bicyclic carbocyclic or heterocyclic radical having 5-13 ring members, or (ii), in the case where both m and p are 0, a divalent radical of formula —X2-Q1- or -Q1-X2— wherein X2 is —O—, S— or NRA— wherein RA is hydrogen or optionally substituted C1-C3 alkyl, and Q1 is an optionally substituted divalent mono- or bicyclic carbocyclic or hetero-cyclic r
    Type: Application
    Filed: May 4, 2006
    Publication date: November 26, 2009
    Applicant: CHROMA THERAPEUTICS LTD.
    Inventors: Alan Hornsby Davidson, Sanjay Ratilal Patel, Francesca Ann Mazzei, Stephen John Davies, Alan Hastings Drummond, David Festus Moffat, Kenneth William John Baker, Alistair David Graham Donald
  • Patent number: 6258851
    Abstract: Compounds of formula (I), wherein A, B, X, R1, R2, R3, R4, R5, R6 are as defined in the specification, are matrix metalloproteinase inhibitors.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: July 10, 2001
    Assignee: British Biotech Pharmaceuticals Limited
    Inventors: Christopher David Floyd, Sanjay Ratilal Patel, Mark Whittaker