Patents Examined by Sudhaker B. Patel
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Patent number: 6660740Abstract: This invention is directed to sorbitol dehydrogenase inhibitory compounds of the formula I, wherein R1, R2 and R3 are as defined in the specification. This invention is also directed to pharmaceutical compositions containing those compounds and methods of treating or preventing diabetic complications, particularly diabetic neuropathy, diabetic nephropathy, diabetic microangiopathy, diabetic macroangiopathy and diabetic cardiomyopathy by administering such compounds to a mammal suffering from diabetes and therefore at risk for developing such complications. This invention is also directed to pharmaceutical compositions comprising a combination of a compound of formula I of this invention with an aldose reductase inhibitor and to methods of treating or preventing diabetic complications therewith.Type: GrantFiled: March 10, 2003Date of Patent: December 9, 2003Assignee: Pfizer IncInventors: Margaret Y. Chu-Moyer, Jerry A. Murry, Banavara L. Mylari, William J. Zembrowski
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Patent number: 6660734Abstract: The invention relates to novel oxazinones designed to bind to the penicillin receptor, methods of synthesizing the compounds, and the use of the compounds as antibacterial agents. The compounds have the general formula (I) Preferably the compounds have a carboxyethyl or a substituted carboxymethyl substituent at the 2-position and a hydroxyl group at the 5-position and have a molecular shape suitable for binding to and reacting with the active site of a pencillin-recognizing enzyme. The compounds are synthesized by condensing a carboxyl-protected N-hydroxy amino acid with a 3-hydroxyprotected-4-bromobutanoic acid to form a a doubly protected N-hydroxy N-acylamino acid, which is cyclized with an organic base to yield a: doubly protected 1,2-oxazin-3-one. The protecting groups are then removed to provide an antibacterial agent.Type: GrantFiled: January 22, 2002Date of Patent: December 9, 2003Assignee: Simon Fraser UniversityInventors: Saul Wolfe, Christiana Akuche, Stephen Ro
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Patent number: 6660746Abstract: The present invention relates to compounds of formula I: wherein R1, R2, and R3 have the meanings indicated in the specification, which are valuable pharmaceutical active compounds for the therapy and prophylaxis of diseases such as cardiovascular disorders such as high blood pressure, angina pectoris, cardiac insufficiency, thromboses, or atherosclerosis. Compounds of formula I have the ability to modulate the endogenous production of cyclic guanosine monophosphate (cGMP) and are generally suitable for the therapy and prophylaxis of disease states which are associated with a disturbed cGMP balance. The invention furthermore relates to processes for the preparation of compounds formula I, methods of therapy and prophylaxis of the designated disease states and for the production of pharmaceuticals therefor, and pharmaceutical compositions which comprise at least one compound of formula I.Type: GrantFiled: February 4, 2000Date of Patent: December 9, 2003Assignee: Aventis Pharma Deutschland GmbHInventors: Ursula Schindler, Karl Schönafinger, Hartmut Strobel
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Patent number: 6653295Abstract: The present invention relates generally to a novel class of pyrimidinones of Formula (I): that are useful as serine protease inhibitors, and more particularly as Hepatitis C virus NS3 protease inhibitors. This invention also relates to pharmaceutical compositions comprising these compounds and methods of using the same.Type: GrantFiled: December 12, 2001Date of Patent: November 25, 2003Assignee: Bristol-Myers Squibb CompanyInventors: Peter William Glunz, Brent Dale Douty, Wei Han
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Patent number: 6653302Abstract: Compounds of formula I, wherein R1 represents C1-4 alkoxy optionally substituted by one or more fluorine atoms; R2 represents H or C1-6 alkoxy optionally substituted by one or more fluorine atoms; R3 represents a 5- or 6-membered heterocyclic ring, the ring being optionally substituted; R4 represents a 4-, 5-, 6-, or 7-membered heterocyclic ring, the ring being optionally fused to a benzene ring or a 5- or 6-membered heterocyclic ring, the ring system as a whole being optionally substituted; X represents CH or N; and L is absent, or represents a cyclic group of formula Ia, or represents a chain of formula Ib, and pharmaceutically acceptable salts thereof; are useful in therapy, in particular in the treatment of benign prostatic hyperplasia.Type: GrantFiled: December 13, 2002Date of Patent: November 25, 2003Assignee: Pfizer Inc.Inventor: David Nathan Abraham Fox
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Patent number: 6653301Abstract: This invention describes novel pyrazole compounds of formula IIa: wherein R1 is T-Ring D, wherein Ring D is a 5-7 membered monocyclic ring or 8-10 membered bicyclic ring selected from aryl, heteroaryl, heterocyclyl or carbocyclyl; Rx and Ry are taken together with their intervening atoms to form a fused, unsaturated or partially unsaturated, 5-7 membered ring having 0-3 heteroatoms; and R2 and R2 are as described in the specification. The compounds are useful as protein kinase inhibitors, especially as inhibitors of Aurora-2 and GSK-3, for treating diseases such as cancer, diabetes and Alzheimer's disease.Type: GrantFiled: December 19, 2001Date of Patent: November 25, 2003Assignee: Vertex Pharmaceuticals IncorporatedInventors: David Bebbington, Jean-Damien Charrier, Robert Davies, Julian M. C. Golec, David Kay, Ronald Knegtel, Sanjay Patel
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Patent number: 6653300Abstract: This invention describes novel pyrazole compounds of formula I′: wherein Q′ is —O—, —C(R6′)2—, 1,2-cyclopropanediyl, 1,2-cyclobutanediyl, or 1,3-cyclopropanediyl, and R1 is T-Ring D, wherein Ring D is a 5-7 membered monocyclic ring or 8-10 membered bicyclic ring selected from aryl, heteroaryl, heterocyclyl or carbocyclyl; Rx and Ry are independently selected from T—R3 or L—Z—R3, or Rx and Ry are taken together with their intervening atoms to form a fused, unsaturated or partially unsaturated, 5-7 membered ring having 0-3 heteroatoms; and R2 and R2′ are as described in the specification. The compounds are useful as protein kinase inhibitors, especially as inhibitors of Aurora-2 and GSK-3, for treating diseases such as cancer, diabetes and Alzheimer's disease.Type: GrantFiled: December 19, 2001Date of Patent: November 25, 2003Assignee: Vertex Pharmaceuticals IncorporatedInventors: David Bebbington, Jean-Damien Charrier, Julian Golec, Jeremy Green, David Kay, Ronald Knegtel, Andrew Miller, Ronald Tomlison, Pan Li
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Patent number: 6649616Abstract: The present invention relates to substituted phenylcyclohexanecarboxamides of the formula (I) to processes for their preparation and to their use in medicaments, in particular for the prevention and/or treatment of cardiovascular disorders.Type: GrantFiled: August 30, 2001Date of Patent: November 18, 2003Assignee: Bayer AktiengesellschaftInventors: Erwin Bischoff, Thomas Krahn, Stephan-Nicholas Müller, Holger Paulsen, Joachim Schuhmacher, Henning Steinhagen, Wolfgang Thielemann
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Patent number: 6645956Abstract: A compound of the formula (I): wherein X is hydroxy, protected hydroxy or optionally substituted amino; Y is —COORA wherein RA is hydrogen or ester residue, —CONRBRC wherein RB and RC each is independently hydrogen or amide residue, optionally substituted aryl or optionally substituted heteroaryl; and A1 is optionally substituted heteoaryl; provided that a compound wherein Y and/or A1 is optionally substituted indol-3-yl is excluded, a tautomer, a prodrug, a pharmaceutically acceptable salt or a hydrate thereof has an inhibitory activity against an integrase.Type: GrantFiled: November 6, 2002Date of Patent: November 11, 2003Assignee: Shionogi & Co., Ltd.Inventors: Toshio Fujishita, Tomokazu Yoshinaga, Akihiko Sato
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Patent number: 6638964Abstract: The present invention creates a novel antiangiogenic agent and provides an antitumor agent which shows high safety as compared with conventional antitumor agents, has a sure effect and is able to be administered for a long period. That is, it provides an indole compound represented by the following formula (I), its pharmacologically acceptable salt or hydrates thereof: In the formula, R1 represents hydrogen atom, a halogen atom or cyano group; R2 and R3 are the same as or different from and each represents hydrogen atom, a C1˜C4 lower alkyl group or a halogen atom; R4 represents hydrogen atom or a C1˜C4 lower alkyl group; and the ring A represents cyanophenyl group, aminosulfonylphenyl group, aminopyridyl group, aminopyrimidyl group, a halopyridyl group or cyanothiophenyl group, provided that the case where all of R1, R2 and R3 are hydrogen atoms, where both R2 and R3 are hydrogen atoms or where the ring A is aminosulfonyl group and both R1 and R2 are halogen atoms is excluded.Type: GrantFiled: March 18, 2002Date of Patent: October 28, 2003Assignee: Eisai Co., Ltd.Inventors: Toru Haneda, Akihiko Tsuruoka, Junichi Kamata, Tadashi Okabe, Keiko Takahashi, Kazumasa Nara, Shinichi Hamaoka, Norihiro Ueda, Takashi Owa, Toshiaki Wakabayashi, Yasuhiro Funahashi, Taro Semba, Naoko Hata, Yuji Yamamoto, Yoichi Ozawa, Noako Tsukahara
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Patent number: 6635630Abstract: Compound represented by the structural formula or a pharmaceutically acceptable salt thereof, wherein Ar1 and Ar2 are optionally substituted heteroaryl or optionally substituted phenyl; X1 is —O—, —S—, —SO—, —SO2—, —NR12—, —NCOR12— or —NR12SO2R15; is selected from the group consisting of X2 is —O—, —S— or —NR5—; Y is ═O, ═S or ═NR11; Y1 is H, C1-C6 alkyl, —NR17R13, —SCH3, R19-aryl(CH2)n6—, R19-heteroaryl-(CH2)n6—, —(CH2)n6—heterocycloalkyl, —(C1-C3)alkyl-NH—C(O)O(C1-C6)alkyl or —NHC(O)R15; R5 is H or —(CH2)n1—G, wherein n1 is 0-5, G is H, —CF3, —CHF2, —CH2F, —OH, —O—(C1-C6 alkyl), —SO2R13, —O—(C3-C8 cycloalkyl), —NR13R14, —SO2NR13R14, —NR13SO2R15, —NR13COR12, —NR12(CONR13Type: GrantFiled: June 6, 2002Date of Patent: October 21, 2003Assignee: Schering CorporationInventors: Neng-Yang Shih, Ho-Jane Shue, Gregory A. Reichard, Sunil Paliwal, David J. Blythin, John J. Piwinski, Dong Xiao, Xiao Chen
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Patent number: 6635655Abstract: The use of diaryl acid derivatives of formula (I) or pharmaceutically acceptable salts, N-oxides, hydrates or solvates thereof, wherein the variables shown are defined in the disclosure, and their pharmaceutical compositions as PPAR ligand receptor binders. The PPAR ligand receptor binders of this invention are useful as agonists or antagonists of the PPAR receptor.Type: GrantFiled: September 14, 2000Date of Patent: October 21, 2003Assignee: Aventis Pharma Deutschland GmbHInventors: Zaid Jayyosi, Gerard M. McGeehan, Michael F. Kelley, Richard F. Labaudiniere, Litao Zhang, Robert D. Groneberg, Daniel G. McGarry, Thomas J. Caulfield, Anne Minnich, Mark Bobko
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Patent number: 6630461Abstract: A method for treating neurodegenerative diseases in a warm-blooded animal comprising administering to a warm-blooded animal in need thereof an amount of a compound of the formula wherein A selected from the group consisting of hydrogen and wherein the substituents are defined as set forth in the specification.Type: GrantFiled: June 15, 2001Date of Patent: October 7, 2003Assignee: Societe de Conseils de Recherches et d'Applications Scientifiques (S.C.R.A.S.)Inventors: Pierre Etienne Chabrier de Lassauniere, Serge Auvin, Dennis Bigg, Michel Auguet, Jeremiah Harnett
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Patent number: 6630487Abstract: This invention is directed to methods of treating insulin resistance in a mammal which comprise administering an effective amount of a compound of formula I, where the variables are defined in the specification, or the stereoisomeric mixtures, diastereomerically enriched, diastereomerically pure, enantiomerically enriched or enantiomerically pure isomers, or the pharmaceutically acceptable salts and prodrugs thereof to said mammal. The compounds of formula I are growth hormone secretagogues and as such are useful for increasing the level of endogenous growth hormone. In another aspect this invention provides certain intermediates which are useful in the synthesis of the foregoing compounds and certain processes useful for the synthesis of said intermediates and the compounds of formula I.Type: GrantFiled: May 29, 2002Date of Patent: October 7, 2003Assignee: Pfizer Inc.Inventors: Philip Albert Carpino, Charles Kwok-Fung Chiu, Lydia Codetta Pan, Bruce Allen Lefker, Judith Lee Treadway, Michael Paul Zawistoski
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Patent number: 6630476Abstract: Corticotropin releasing factor (CRF) antagonists of Formula (I) or (II) and their use in treating anxiety, depression, and other psychiatric, neurological disorders as well as treatment of immunological, cardiovascular or heart-related diseases and colonic hypersensitivity associated with psychopathological disturbance and stress.Type: GrantFiled: July 3, 2001Date of Patent: October 7, 2003Assignee: Bristol-Myers Squibb Pharma CompanyInventor: Rajagopal Bakthavatchalam
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Patent number: 6630489Abstract: The invention concerns quinoline derivatives of formula (I) wherein n is 0-3 and each R4, which may be the same or different, is a substituent such as halogeno, hydroxy, amino, nitro, trifluoromethyl, trifluoromethoxy, cyano or (1-6C)alkyl, or optionally substituted phenyl, phenoxy, anilino, N-(1-6C)alkylanilino, benzoyl or pyridyloxy; R1 and R2 is hydrogen or optionally substituted (1-6C)alkyl, (2-6C)alkenyl or (2-6C)alkynyl; or pharmaceutically-acceptable salts thereof; processes for their preparation, pharmaceutical compositions containing them and their use in the prevention or treatment of T cell mediated diseases or medical conditionsType: GrantFiled: August 20, 2001Date of Patent: October 7, 2003Assignee: Astrazeneca ABInventor: Graham Charles Crawley
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Patent number: 6624171Abstract: Substituted aza-oxindole derivatives useful as cyclin dependent kinase 11 inhibitors, for preventing/reducing the severity of epithelial cytotoxicity side-effects (e.g., alopecia, plantar-palmar syndrome, mucositis) induced by chemoptherapy and/or radiation therapy in a patient receiving such therapy.Type: GrantFiled: August 28, 2001Date of Patent: September 23, 2003Assignee: SmithKline Beecham CorporationInventors: Philip Anthony Harris, Lee Frederick Kuyper, Karen Elizabeth Lackey, James Marvin Veal
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Patent number: 6620841Abstract: A compound of the formula (I): wherein X is hydroxy, protected hydroxy or optionally substituted amino; Y is —COORA wherein RA is hydrogen or ester residue, —CONRBRC wherein RB and RC each is independently hydrogen or amide residue, optionally substituted aryl or optionally substituted heteroaryl; and A1 is optionally substituted heteroaryl; provided that a compound wherein Y and/or A1 is optionally substituted indol-3-yl is excluded, a tautomer, a prodrug, a pharmaceutically acceptable salt or a hydrate thereof has an inhibitory activity against an integrase.Type: GrantFiled: June 7, 2001Date of Patent: September 16, 2003Assignee: Shionogi & Co., Ltd.Inventors: Toshio Fujishita, Tomokazu Yoshinaga, Akihiko Sato
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Patent number: 6620840Abstract: N-(imino)amines and their preparation and their use as NO synthase inhibitors and selective or non-selective traps for a reactive oxygen species.Type: GrantFiled: September 26, 2002Date of Patent: September 16, 2003Assignee: Societe de Conseils de Recherches et d'Applications Scientifiques (S.C.R.A.S.)Inventors: Dennis Bigg, Pierre-Etienne Chabrier de Lassauniere, Serge Auvin, Jeremiah Harnett, Gérard Ulibarri
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Patent number: 6613769Abstract: The invention relates to bifunctional tryptase inhibitors of formula (I) wherein H1 and H2 comprise a Q group and L is a linker of formula and the conformation of the H1, H2 and L groups is such that the groups are separated by a distance of from 20 to 45 Å. Pharmaceutical compositions and crystal forms of the compounds are described in addition to methods for producing and identifying such compounds, as well as the use of such compounds in methods of treating allergic and inflammatory diseases.Type: GrantFiled: January 22, 2001Date of Patent: September 2, 2003Assignees: Max-Planck-Gesellschaft zur Föderung der Wissenschaften. e.V., Altana Pharma AGInventors: Wolfram Bode, Luis Moroder, Pedro Jose Barbosa Pereira, Andreas Bergner, Robert Huber, Christian Sommerhoff, Norbert Schaschke, Thomas Bär, Thomas Martin, Josef Stadlwieser, Wolf-Rüdiger Ulrich, Andreas Dominik, Ulrich Thibaut, Daniela Bundschuh, Rolf Beume, Karl-Josef Goebel