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).
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Publication number: 20090264425Abstract: 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: ApplicationFiled: December 12, 2005Publication date: October 22, 2009Inventors: Lyn Howard Jones, Donald Stuart Middleton, Charles Eric Mowbray, Sandra Dora Newman, David Howard Williams
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Patent number: 7141586Abstract: 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: GrantFiled: July 20, 2004Date of Patent: November 28, 2006Assignee: Pfizer Inc.Inventors: Simon Bailey, Christopher Gordon Barber, Paul Alan Glossop, Donald Stuart Middleton
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Patent number: 7060836Abstract: 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: GrantFiled: December 17, 2002Date of Patent: June 13, 2006Assignee: Pfizer, IncInventors: Donald Stuart Middleton, Alan Stobie
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Patent number: 6849649Abstract: 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: GrantFiled: October 28, 2003Date of Patent: February 1, 2005Assignee: Pfizer Inc.Inventors: Stephen Challenger, Andrew Simon Cook, Adam Thomas Gillmore, Donald Stuart Middleton, David Cameron Pryde, Alan Stobie
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Patent number: 6800652Abstract: The invention relates to compounds of formula IType: GrantFiled: July 31, 2003Date of Patent: October 5, 2004Assignee: Pfizer Inc.Inventors: Mark David Andrews, David Hepworth, Donald Stuart Middleton
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Publication number: 20040132710Abstract: Compounds of the formula (I): 1Type: ApplicationFiled: December 17, 2002Publication date: July 8, 2004Applicant: Pfizer Inc.Inventors: Donald Stuart Middleton, Alan Stobie
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Publication number: 20040106611Abstract: 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: ApplicationFiled: October 28, 2003Publication date: June 3, 2004Applicant: Pfizer IncInventors: Stephen Challenger, Andrew Simon Cook, Adam Thomas Gillmore, Donald Stuart Middleton, David Cameron Pryde, Alan Stobie
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Publication number: 20040097509Abstract: The invention relates to compounds of formula I 1Type: ApplicationFiled: July 31, 2003Publication date: May 20, 2004Applicant: Pfizer Inc.Inventors: Mark David Andrews, David Hepworth, Donald Stuart Middleton
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Patent number: 6660756Abstract: 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: GrantFiled: March 12, 2002Date of Patent: December 9, 2003Assignee: Pfizer Inc.Inventors: Stephen Challenger, Andrew Simon Cook, Adam Thomas Gillmore, Donald Stuart Middleton, David Cameron Pryde, Alan Stobie
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Patent number: 6630504Abstract: 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 froType: GrantFiled: August 24, 2001Date of Patent: October 7, 2003Assignee: Pfizer Inc.Inventors: Mark David Andrews, David Hepworth, Donald Stuart Middleton, Alan Stobie
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Patent number: 6610747Abstract: 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 hetType: GrantFiled: August 27, 2001Date of Patent: August 26, 2003Assignee: 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
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Publication number: 20030105132Abstract: 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: ApplicationFiled: March 12, 2002Publication date: June 5, 2003Inventors: Stephen Challenger, Andrew Simon Cook, Adam Thomas Gillmore, Donald Stuart Middleton, David Cameron Pryde, Alan Stobie
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Publication number: 20030060456Abstract: 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 heterType: ApplicationFiled: August 27, 2001Publication date: March 27, 2003Inventors: Mavis Diane Adam, Mark David Andrews, Mark Leonard Elliott, Geoffrey Edward Gymer, David Hepworth, Harry Ralph Howard, Donald Stuart Middleton, Alan Stobie
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Publication number: 20020183303Abstract: 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 froType: ApplicationFiled: August 24, 2001Publication date: December 5, 2002Inventors: Mark David Andrews, David Hepworth, Donald Stuart Middleton, Alan Stobie
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Patent number: 6448293Abstract: 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(OType: GrantFiled: March 16, 2001Date of Patent: September 10, 2002Assignee: Pfizer Inc.Inventors: Mark David Andrews, David Hepworth, Donald Stuart Middleton, Alan Stobie
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Publication number: 20020052395Abstract: 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, CO2R9Type: ApplicationFiled: March 16, 2001Publication date: May 2, 2002Inventors: Mark David Andrews, David Hepworth, Donald Stuart Middleton, Alan Stobie
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Patent number: 6262046Abstract: 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: GrantFiled: November 10, 1999Date of Patent: July 17, 2001Assignee: Pfizer Inc.Inventors: David Alker, Thomas Victor Magee, Graham Nigel Maw, Donald Stuart Middleton
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Patent number: 6262075Abstract: 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: GrantFiled: July 20, 1998Date of Patent: July 17, 2001Assignee: Pfizer IncInventors: Alexander Roderick MacKenzie, Allan Patrick Marchington, Donald Stuart Middleton, Sandra Dora Meadows
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Patent number: 6242438Abstract: The present invention provides compounds of formula (I) and the pharmaceutically acceptable salts thereof. Such compounds and salts are tachykinin antagonists.Type: GrantFiled: June 1, 1998Date of Patent: June 5, 2001Assignee: Pfizer Inc.Inventors: Alexander Roderick MacKenzie, Allan Patrick Marchington, Donald Stuart Middleton, Sandra Dora Meadows
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Patent number: 6200978Abstract: 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: GrantFiled: March 3, 1999Date of Patent: March 13, 2001Assignee: Pfizer Inc.Inventors: Graham Nigel Maw, Donald Stuart Middleton