Patents by Inventor Donald Stuart Middleton

Donald Stuart Middleton 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: 20090264425
    Abstract: This invention relates to biaryl ether derivatives of formula (I) wherein R1, R3, R4, X, W, Y and m are defined in the description, and to compositions containing them and the uses of such derivatives. The compounds of the present invention bind to the enzyme reverse transcriptase and are modulators, especially inhibitors thereof.
    Type: Application
    Filed: December 12, 2005
    Publication date: October 22, 2009
    Inventors: Lyn Howard Jones, Donald Stuart Middleton, Charles Eric Mowbray, Sandra Dora Newman, David Howard Williams
  • Patent number: 7141586
    Abstract: This invention relates to nicotinamide derivatives of formula (I) and to processes for the preparation of, intermediates used in the preparation of, pharmaceutical compositions containing, and the uses of such derivatives: wherein each substituent is defined herein.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: November 28, 2006
    Assignee: Pfizer Inc.
    Inventors: Simon Bailey, Christopher Gordon Barber, Paul Alan Glossop, Donald Stuart Middleton
  • Patent number: 7060836
    Abstract: Compounds of the formula (I): or a pharmaceutically acceptable salt, prodrug, solvate or polymorph thereof, wherein R, R1, and Z are as defined herein, are useful in treating or preventing a condition for which an NK2 antagonist is efficacious.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: June 13, 2006
    Assignee: Pfizer, Inc
    Inventors: Donald Stuart Middleton, Alan Stobie
  • Patent number: 6849649
    Abstract: The invention relates to compounds of formula (I) for treating for example sexual dysfunction, wherein R1 is optionally substituted C1-6alkyl, optionally substituted carbocyclyl, optionally substituted heterocyclyl, hydrogen, C1-6alkoxy, —NR2R3 or —NR4SO2R5; X is the linkage —(CH2)n— or —(CH2)q—O— (wherein Y is attached to the oxygen); wherein one or more hydrogen atoms in linkage X may be replaced independently by C1-4alkoxy; hydroxy; hydroxy(C1-3alkyl); C3-7cycloalkyl; carbocyclyl; heterocyclyl; or by C1-4alkyl optionally substituted by one or more fluoro or phenyl groups; n is 3, 4, 5, 6 or 7; and q is 2, 3, 4, 5 or 6; and Y is phenyl or pyridyl, each of which may be substituted; or two R8 groups on adjacent carbon atoms together with the interconnecting carbon atoms may form a fused optionally substituted 5- or 6-membered carbocyclic or heterocyclyic ring.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: February 1, 2005
    Assignee: Pfizer Inc.
    Inventors: Stephen Challenger, Andrew Simon Cook, Adam Thomas Gillmore, Donald Stuart Middleton, David Cameron Pryde, Alan Stobie
  • Patent number: 6800652
    Abstract: The invention relates to compounds of formula I
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: October 5, 2004
    Assignee: Pfizer Inc.
    Inventors: Mark David Andrews, David Hepworth, Donald Stuart Middleton
  • Publication number: 20040132710
    Abstract: Compounds of the formula (I): 1
    Type: Application
    Filed: December 17, 2002
    Publication date: July 8, 2004
    Applicant: Pfizer Inc.
    Inventors: Donald Stuart Middleton, Alan Stobie
  • Publication number: 20040106611
    Abstract: The invention relates to compounds of formula (I) for treating for example sexual dysfunction, wherein R1 is optionally substituted C1-6alkyl, optionally substituted carbocyclyl, optionally substituted heterocyclyl, hydrogen, C1-6alkoxy, —NR2R3 or —NR4SO2R5; X is the linkage —(CH2)n— or —(CH2)q—O— (wherein Y is attached to the oxygen); wherein one or more hydrogen atoms in linkage X may be replaced independently by C1-4alkoxy; hydroxy; hydroxy(C1-3alkyl); C3-7cycloalkyl; carbocyclyl; heterocyclyl; or by C1-4alkyl optionally substituted by one or more fluoro or phenyl groups; n is 3, 4, 5, 6 or 7; and q is 2, 3, 4, 5 or 6; and Y is phenyl or pyridyl, each of which may be substituted; or two R8 groups on adjacent carbon atoms together with the interconnecting carbon atoms may form a fused optionally substituted 5- or 6-membered carbocyclic or heterocyclyic ring.
    Type: Application
    Filed: October 28, 2003
    Publication date: June 3, 2004
    Applicant: Pfizer Inc
    Inventors: Stephen Challenger, Andrew Simon Cook, Adam Thomas Gillmore, Donald Stuart Middleton, David Cameron Pryde, Alan Stobie
  • Publication number: 20040097509
    Abstract: The invention relates to compounds of formula I 1
    Type: Application
    Filed: July 31, 2003
    Publication date: May 20, 2004
    Applicant: Pfizer Inc.
    Inventors: Mark David Andrews, David Hepworth, Donald Stuart Middleton
  • Patent number: 6660756
    Abstract: The invention relates to compounds of formula (I) for treating for example sexual dysfunction, wherein R1 is optionally substituted C1-6alkyl, optionally substituted carbocyclyl, optionally substituted heterocyclyl, hydrogen, C1-6alkoxy, —NR2 R3 or —NR4SO2R5; X is the linkage —(CH2)n— or —(CH2)q—O— (wherein Y is attached to the oxygen); wherein one or more hydrogen atoms in linkage X may be replaced independently by C1-4alkoxy; hydroxy; hydroxy(C1-3alkyl); C3-7cycloalkyl; carbocyclyl; heterocyclyl; or by C1-4alkyl optionally substituted by one or more fluoro or phenyl groups; n is 3, 4, 5, 6 or 7; and q is 2, 3, 4, 5 or 6; and Y is phenyl or pyridyl, each of which may be substituted; or two R8 groups on adjacent carbon atoms together with the interconnecting carbon atoms may form a fused optionally substituted 5- or 6-membered carbocyclic or heterocyclyic ring.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: December 9, 2003
    Assignee: Pfizer Inc.
    Inventors: Stephen Challenger, Andrew Simon Cook, Adam Thomas Gillmore, Donald Stuart Middleton, David Cameron Pryde, Alan Stobie
  • Patent number: 6630504
    Abstract: The invention provides compounds of general formula (I) wherein R1 is H or C1-C6 alkyl; R2 and R3, together with the interconnecting atoms form a 4 to 8-membered saturated ring containing one or two heteroatoms (including the nitrogen to which R2 is attached) wherein a second heteroatom, if present, is selected from oxygen, nitrogen and sulfur, with the proviso that said ring cannot contain two adjacent heteroatoms; Z is CF3, OCF3, C1-C6alkylthio or C1-C6alkoxy; Y is hydrogen, halogen, —ORa, Ra or C1-C6alkylthio, and wherein Ra is C1-C4 alkyl optionally substituted with fluorine atoms; or when Z and Y are attached para and meta to the ether linkage linking rings A and B, Z and Y are linked so that, together with the interconnecting atoms, Z and Y form a fused 5 to 7-membered carbocyclic or heterocyclic ring which may be saturated, unsaturated or aromatic, and wherein when Z and Y form a heterocyclic ring, in addition to carbon atoms, the linkage contains one or two heteroatoms independently selected fro
    Type: Grant
    Filed: August 24, 2001
    Date of Patent: October 7, 2003
    Assignee: Pfizer Inc.
    Inventors: Mark David Andrews, David Hepworth, Donald Stuart Middleton, Alan Stobie
  • Patent number: 6610747
    Abstract: A compound of general formula (I) wherein R1 and R2 are H, C1-C6alkyl or (CH2)d(C3-C6cycloalkyl) wherein d=0, 1, 2 or 3; or R1 and R2 together with the nitrogen to which they are attached form an azetidine ring; Z or Y is —SR3 and the other Z or Y is halogen or —R3; wherein R3 is C1-C4 alkyl optionally substituted with fluorine; except that R3 is not CF3; or Z and Y are linked so that, together with the interconnecting atoms, Z and Y form a fused 5 to 7-membered carbocyclic or heterocyclic ring, and wherein when Z and Y form a heterocyclic ring, in addition to carbon atoms, the linkage contains one or two heteroatoms independently selected from oxygen, sulfur and nitrogen; R4 and R5, which may be the same or different, are: A—X, wherein A=—CH═CH— or —(CH2)p— where p is 0, 1 or 2; X is hydrogen, F, Cl, Br, I, CONR6R7, SO2NR6R7, SO2NHC(═O)R6, OH, C1-4alkoxy, NR8SO2R9, NO2, NR6R11, CN, CO2R10, CHO, SR10, S(O)R9 or SO2R10; or a 5- or 6-membered het
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: August 26, 2003
    Assignee: Pfizer Inc.
    Inventors: Mavis Diane Adam, Mark David Andrews, Mark Leonard Elliott, Geoffrey Edward Gymer, David Hepworth, Harry Ralph Howard, Jr., Donald Stuart Middleton, Alan Stobie
  • Publication number: 20030105132
    Abstract: The invention relates to compounds of formula (I) for treating for example sexual dysfunction, wherein R1 is optionally substituted C1-6alkyl, optionally substituted carbocyclyl, optionally substituted heterocyclyl, hydrogen, C1-6alkoxy, —NR2 R3 or —NR4SO2R5; X is the linkage —(CH2)n— or —(CH2)q—O— (wherein Y is attached to the oxygen); wherein one or more hydrogen atoms in linkage X may be replaced independently by C1-4alkoxy; hydroxy; hydroxy(C1-3alkyl); C3-7cycloalkyl; carbocyclyl; heterocyclyl; or by C1-4alkyl optionally substituted by one or more fluoro or phenyl groups; n is 3, 4, 5, 6 or 7; and q is 2, 3, 4, 5 or 6; and Y is phenyl or pyridyl, each of which may be substituted; or two R8 groups on adjacent carbon atoms together with the interconnecting carbon atoms may form a fused optionally substituted 5- or 6-membered carbocyclic or heterocyclyic ring.
    Type: Application
    Filed: March 12, 2002
    Publication date: June 5, 2003
    Inventors: Stephen Challenger, Andrew Simon Cook, Adam Thomas Gillmore, Donald Stuart Middleton, David Cameron Pryde, Alan Stobie
  • Publication number: 20030060456
    Abstract: A compound of general formula (I) wherein R1 and R2 are H, C1-C6alkyl or (CH2)d(C3-C6cycloalkyl) wherein d=0, 1, 2 or 3; or R1 and R2 together with the nitrogen to which they are attached form an azetidine ring; Z or Y is —SR3 and the other Z or Y is halogen or —R3; wherein R3 is C1-C4 alkyl optionally substituted with fluorine; except that R3 is not CF3; or Z and Y are linked so that, together with the interconnecting atoms, Z and Y form a fused 5 to 7-membered carbocyclic or heterocyclic ring, and wherein when Z and Y form a heterocyclic ring, in addition to carbon atoms, the linkage contains one or two heteroatoms independently selected from oxygen, sulfur and nitrogen; R4 and R5, which may be the same or different, are: A—X, wherein A═—CH═CH— or —(CH2)p— where p is 0, 1 or 2; X is hydrogen, F, Cl, Br, I, CONR6R7, SO2NR6R7, SO2NHC(═O)R6, OH, C1-4alkoxy, NR8SO2R9, NO2, NR6R11, CN, CO2R10, CHO, SR10, S(O)R9 or SO2R10; or a 5- or 6-membered heter
    Type: Application
    Filed: August 27, 2001
    Publication date: March 27, 2003
    Inventors: Mavis Diane Adam, Mark David Andrews, Mark Leonard Elliott, Geoffrey Edward Gymer, David Hepworth, Harry Ralph Howard, Donald Stuart Middleton, Alan Stobie
  • Publication number: 20020183303
    Abstract: The invention provides compounds of general formula (I) wherein R1 is H or C1-C6 alkyl; R2 and R3, together with the interconnecting atoms form a 4 to 8-membered saturated ring containing one or two heteroatoms (including the nitrogen to which R2 is attached) wherein a second heteroatom, if present, is selected from oxygen, nitrogen and sulfur, with the proviso that said ring cannot contain two adjacent heteroatoms; Z is CF3, OCF3, C1-C6alkylthio or C1-C6alkoxy; Y is hydrogen, halogen, —ORa, Ra or C1-C6alkylthio, and wherein Ra is C1-C4 alkyl optionally substituted with fluorine atoms; or when Z and Y are attached para and meta to the ether linkage linking rings A and B, Z and Y are linked so that, together with the interconnecting atoms, Z and Y form a fused 5 to 7-membered carbocyclic or heterocyclic ring which may be saturated, unsaturated or aromatic, and wherein when Z and Y form a heterocyclic ring, in addition to carbon atoms, the linkage contains one or two heteroatoms independently selected fro
    Type: Application
    Filed: August 24, 2001
    Publication date: December 5, 2002
    Inventors: Mark David Andrews, David Hepworth, Donald Stuart Middleton, Alan Stobie
  • Patent number: 6448293
    Abstract: A compound of general formula (I), or pharmaceutically acceptable salts, solvates or polymorphs thereof; wherein; R1 and R2, which may be the same or different, are hydrogen, C1-C6alkyl, (CH2)m (C3-C6cycloalkyl) wherein m =0, 1, 2 or 3, or R1 and R2 together with the nitrogen to which they are attached form an azetidine ring; each R3 is independently CF3, OCF3, C1-4alkylthio or C1-C4alkoxy; n is 1, 2 or 3; and R4 and R5, which may be the same or different, are: A—X, wherein A =—CH=CH— or —(CH2)p— where p is 0, 1 or 2; X is hydrogen, F, Cl, Br, I, CONR6R7, SO2NR6R7, SO2NHC(=O)R6, OH, C1-4alkoxy, NR8SO2R9, NO2, NR6R11, CN, CO2R10, CHO, SR10, S(O)R9 or SO2R10; R6, R7, R8 and R10 which may be the same or different, are hydrogen or C1-6alkyl optionally substituted independently by one or more R12; R9 is C1-6 alkyl optionally substituted independently by one or more R12; R11 is hydrogen, C1-6 alkyl optionally substituted independently by one or more R12, C(O
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: September 10, 2002
    Assignee: Pfizer Inc.
    Inventors: Mark David Andrews, David Hepworth, Donald Stuart Middleton, Alan Stobie
  • Publication number: 20020052395
    Abstract: A compound of general formula (I), or pharmaceutically acceptable salts, solvates or polymorphs thereof; wherein; R1 and R2, which may be the same or different, are hydrogen, C1-C6alkyl, (CH2)m(C3-C6cycloalkyl) wherein m =0, 1, 2 or 3, or R1 and R2 together with the nitrogen to which they are attached form an azetidine ring; each R3 is independently CF3, OCF3, C1-4alkylthio or C1-C4alkoxy; n is 1, 2 or 3; and R4 and R5, which may be the same or different, are: A-X, wherein A =—CH=CH— or —(CH2)p— where p is 0, 1 or 2; X is hydrogen, F, Cl, Br, I, CONR6R7,SO2NR6R7, SO2NHC(=O)R6, OH, C1-4alkoxy, NR8SO2R9, NO2, NR6R11, CN, CO2R10, CHO, SR10, S(O)R9 or SO2R10 R6, R7, R and R10 which may be the same or different, are hydrogen or C1-6alkyl optionally substituted independently by one or more R12; R9 is C1-6 alkyl optionally substituted independently by one or more R12; R11 is hydrogen, C1-6 alkyl optionally substituted independently by one or more R12, C(O)R6, CO2R9
    Type: Application
    Filed: March 16, 2001
    Publication date: May 2, 2002
    Inventors: Mark David Andrews, David Hepworth, Donald Stuart Middleton, Alan Stobie
  • Patent number: 6262075
    Abstract: The present invention provides compounds of formula (I) and the pharmaceutically acceptable acid addition salts thereof, wherein X is a direct link or C1-C4 alkylene; and R is C3-C7 cycloalkyl optionally substituted by 1 or 2 substituents each independently selected from fluoro and C3-C7 cycloalkyl: with the proviso that X is not methylene when R is cyclopropyl, together with processes for the preparation of, intermediates used in the preparation of, compositions containing and uses of, such compounds. These compounds are useful as tachykinin antagonists.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: July 17, 2001
    Assignee: Pfizer Inc
    Inventors: Alexander Roderick MacKenzie, Allan Patrick Marchington, Donald Stuart Middleton, Sandra Dora Meadows
  • Patent number: 6262046
    Abstract: Compounds of the formula (I): where X1, A, Ar1, X and R are as defined in the specification, and pharmaceutically-acceptable salts thereof, are new, and are useful as tachykinin inhibitors which act at the NK1, NK2 and NK3 receptors or a combination of two or more thereof.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: July 17, 2001
    Assignee: Pfizer Inc.
    Inventors: David Alker, Thomas Victor Magee, Graham Nigel Maw, Donald Stuart Middleton
  • Patent number: 6242438
    Abstract: The present invention provides compounds of formula (I) and the pharmaceutically acceptable salts thereof. Such compounds and salts are tachykinin antagonists.
    Type: Grant
    Filed: June 1, 1998
    Date of Patent: June 5, 2001
    Assignee: Pfizer Inc.
    Inventors: Alexander Roderick MacKenzie, Allan Patrick Marchington, Donald Stuart Middleton, Sandra Dora Meadows
  • Patent number: 6200978
    Abstract: Compounds of the formula (I)—shown below—are described. The compounds are useful in the manufacture of a pharmaceutical composition for preventing or treating inflammatory diseases such as arthritis, psoriasis, asthma, or inflammatory bowel disease, disorders of respiratory function, gastrointestinal disorders such as functional bowel disease, functional GI disorders such as irritable bowel syndrome, functional diarrhoea, functional distension, functional pain, non-ulcerogenic dyspepsia or others associated with disorders of motility or secretion, urogenital tract disorders such as incontinence, as analgesics for treating pain including non-somatic pain, or as immunosuppressants to prevent rejection in organ transplant and skin graft.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: March 13, 2001
    Assignee: Pfizer Inc.
    Inventors: Graham Nigel Maw, Donald Stuart Middleton