Chalcogen Bonded Directly To The Hetero Ring Patents (Class 549/399)
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Patent number: 7268240Abstract: A process is disclosed for the production of polyphenol oligomers having n polyphenol monomeric units, n being an integer from 2-18. The process includes coupling of a protected polyphenol, having protected phenolic hydroxyl groups, with a C-4 functionalized polyphenol monomer. The protected polyphenol may be a protected polyphenol monomer or a protected polyphenol oligomer having 2-17 monomeric units. Advantageously, polyphenol monomeric units forming the polyphenol oligomers may be the same or different flavanoid compounds.Type: GrantFiled: May 28, 2004Date of Patent: September 11, 2007Inventors: Leo J. Romanczyk, Jr., Alan P. Kozikowski, Werner Tueckmantel, Marc E. Lippman
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Patent number: 7247355Abstract: The present invention relates to a compound having a chroman ring, which has good thermal and optical stability, adequate optical anisotropy, adequate dielectric anisotropy and superior compatibility with other liquid crystal compounds, a liquid crystal composition comprising the compound, and a liquid crystal device comprising the composition.Type: GrantFiled: December 16, 2005Date of Patent: July 24, 2007Assignees: Chisso Corporation, Chisso Petrochemical CorporationInventors: Kouki Sagou, Atsuko Fujita
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Patent number: 7244855Abstract: Various processes are disclosed for preparing procyanidin oligomers having (4,8)-interflavan linkages. In an improved process, a tetra-O-protected-epicatechin or -catechin monomer or oligomer is coupled with a protected, C-4 alkoxy-activated-epicatechin or -catechin monomer in the presence of an acidic clay instead of a Lewis acid. In a second process, a 5,7,3?,4?-tetra-O-protected or preferably penta-O-protected-epicatechin or -catechin monomer or oligomer is reacted with a tetra-O-protected or preferably penta-O-protected-epicatechin or -catechin monomer having a thio activating group at the C-4 position; the coupling is carried out in the presence of silver tetrafluoroborate. In third process, two molecules of a penta-O-protected-epicatechin or -catechin monomer activated with a 2-(benzothiazolyl)thio group at the C-4 position are self-condensed in the presence of silver tetrafluoroborate.Type: GrantFiled: October 2, 2003Date of Patent: July 17, 2007Inventors: Alan P. Kozikowski, Werner Tückmantel, Leo J. Romanczyk, Jr., Xingquan Ma
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Patent number: 7244763Abstract: This invention relates to compounds that alter PPAR activity. The invention also relates to pharmaceutically acceptable salts of the compounds, pharmaceutically acceptable compositions comprising the compounds or their salts, and methods of using them as therapeutic agents for treating or preventing dyslipidemia, hypercholesterolemia, obesity, hyperglycemia, atherosclerosis, hypertriglyceridemia and hyperinsulinemia in a mammal. The present invention also relates to methods for making the disclosed compounds.Type: GrantFiled: February 6, 2004Date of Patent: July 17, 2007Assignee: Warner Lambert Company LLCInventors: Larry D. Bratton, Xue-Min Cheng, Noe Erasga, Gary F. Filzen, Andrew G. Geyer, Chitase Lee, Bharat K. Trivedi, Paul C. Unangst
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Patent number: 7226918Abstract: The invention relates to the use of compounds of formula (I) and isomers, salts, solvates, chemically protected forms, and prodrugs thereof, in the preparation of a medicament for inhibiting the activity of DNA-PK, wherein R1 and R2 are independently hydrogen, an optionally substituted C1-7 alkyl group, C3-20 heterocyclyl group, or C5-20 aryl group, or may together form, along with the nitrogen atom to which they are attached, an optionally substituted heterocyclic ring having from 4 to 8 ring atoms; X and Y are selected from CR4 and O, O and CR?4 and NR?4 and N, where the unsaturation is in the appropriate place in the ring, and where one of R3 and R4 or R?4 is an optionally substituted C3-20 heteroaryl or C5-20 aryl group, and the other of R3 and R4 or R?4 is H, or R3 and R4 or R?4 together are -A-B—, which collectively represent a fused optionally substituted aromatic ring. The compounds also selectively inhibit the activity of DNA-PK compared to PI 3-kinase and/or ATM.Type: GrantFiled: August 14, 2002Date of Patent: June 5, 2007Assignee: Cancer Research Technology LimitedInventors: Niall Morrison Barr Martin, Graeme Cameron Murray Smith, Roger John Griffin, Bernard Thomas Golding, Ian Robert Hardcastle, David Richard Newell, Hilary Alan Calvert, Nicola Jane Curtin, Laurent Jean Martin Rigoreau, Xiao-ling Fan Cockcroft, Vincent Junior Ming-lai Loh, Paul Workman, Florence Irene Raynaud, Bernard Paul Nutley
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Patent number: 7226644Abstract: The present invention relates to a liquid crystal compound which has negative dielectric anisotropy and a large absolute value thereof; and a liquid crystal display element which contains the compound as a constituent element and has a negative value of dielectric anisotropy in the vertical alignment mode, IPS, or the like. The liquid-crystal display element has a structure including a pair of substrates and a liquid crystal sandwiched therebetween, and includes at least an alignment control layer, a transparent electrode, and a polarizing plate, in which the liquid crystal includes at least one compound having a partial structure represented by general formula (A): (wherein W1 and W2 each independently represents fluorine, chlorine, —CF3, —CF2H, —OCF3, or —OCF2H) and has negative dielectric anistropy.Type: GrantFiled: June 25, 2004Date of Patent: June 5, 2007Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Takashi Matsumoto, Tetsuo Kusumoto, Shotaro Kawakami
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Patent number: 7214706Abstract: The invention provides chroman compounds having Formula (1), wherein R1 is (1C–4C)alkyl, (2C–4C)alkenyl or (2C–4C)alkynyl, and independently R1 has a cis-orientation in relation to the exocyclic phenyl group at the 2-position of the skeleton; R4 is Hal, CF3, OH or (1C–2C)alkyloxy; R2, R3, and R5 are independently H, Hal, CF3, (1C–4C)alkyl, (2C–4C)alkenyl or (2C–4C)alkynyl and prodrugs thereof for the manufacture of a medicine for estrogen-receptor related treatments.Type: GrantFiled: February 26, 2001Date of Patent: May 8, 2007Assignee: Akzo Nobel N.V.Inventors: Gerrit Herman Veeneman, Neeltje Miranda Teerhuis
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Patent number: 7148240Abstract: The invention relates to benzofuran or benzothiophene derivatives of general formula: These compounds are of use as medicinal products, in particular in the treatment of pathological syndromes of the cardiovascular system.Type: GrantFiled: August 23, 2001Date of Patent: December 12, 2006Assignee: Sanofi-AventisInventors: Jean-Louis Assens, Claude Bernhart, Frédérique Cabanel-Haudricourt, Dino Nisato
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Patent number: 7138429Abstract: A preparation process is provided for preparing a novel flavonoid compound having a high level of antioxidative action. The flavonoid compound is obtained by subjecting hesperidin to microbial fermentation treatment with Aspergillus saitoi.Type: GrantFiled: March 14, 2002Date of Patent: November 21, 2006Assignee: Japan Sci. Tech. Corp.Inventors: Toshihiko Osawa, Kenichiro Minato, Yoshiaki Miyake
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Patent number: 7122573Abstract: Novel compounds useful as chemotherapeutic and chemopreventive agents are provided. The compounds are analogs of polyphenol catechins that occur in green tea, such as epigallocatichin-3-gallate (EGCG), and have the structure of formula (I) wherein R1 through R11 are defined herein. Preferred R4 moieties are selected from O, S, NH and CH2, and in exemplary compounds, R4 is O and R5 is a tri-substituted aroyloxy substituent, such as a 3,4,5-substituted benzoyloxy group. Pharmaceutical compositions are provided as well, as are methods of chemotherapy and chemoprevention.Type: GrantFiled: December 6, 2002Date of Patent: October 17, 2006Assignee: SRI InternationalInventors: Nurulain Zaveri, Wan-Ru Chao, Ahlem Bensari
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Patent number: 7109236Abstract: Novel compounds useful as chemotherapeutic and chemopreventive agents are provided. The compounds are analogs of polyphenol catechins that occur in green tea, such as epigallocatichin-3-gallate (EGCG), and have the structure of formula (I) wherein R1 through R11 are defined herein. Preferred R4 moieties are selected from O, S, NH and CH2, and in exemplary compounds, R4 is O and R5 is a tri-substituted aroyloxy substituent, such as a 3,4,5-substituted benzoyloxy group. Pharmaceutical compositions are provided as well, as are methods of chemotherapy and chemoprevention.Type: GrantFiled: December 8, 2003Date of Patent: September 19, 2006Assignee: SRI InternationalInventors: Nurulain Zaveri, Wan-Ru Chao, Ahlem Bensari
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Patent number: 7109327Abstract: The invention relates to a method for the synthesis of galanthamifle, the derivatives and analogues thereof of formula (1) where R1=a hydrogen atom.Type: GrantFiled: June 14, 2002Date of Patent: September 19, 2006Assignee: Centre National de la Recherche Scientifique (CNRS)Inventors: Claude Thal, Catherine Guillou, Jean-Luc Beunard, Emmanuel Gras, Pierre Potier
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Patent number: 7102020Abstract: The present invention provides a method to prepare 2H-benzo[6]pyrans, such as the anti-HIV natural product daurichromenic acid (1a), by microwave-assisted tandem aldol reaction of a phenolic enolate followed by intramolecular SN2? type cyclization to form the 2H-benzo[6]pyran core structure.Type: GrantFiled: December 18, 2003Date of Patent: September 5, 2006Inventors: Zhendong Jin, Ying Kang
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Patent number: 7071341Abstract: The present invention provides novel ?-glucosidase inhibitory compound (?)-mesquitol and its analogs isolated in significant yield from traditional medicinal plant Dichrostachys cinerea and further modification of (?)-mesquitol to enhance the ?-glucosidase inhibitory potential; the invention also identifies the usage of (?)-mesquitol and its analogues, based on their ?-glucosidase inhibitory activity, as broad based potential therapeutics as antihyperglycernic, antidiabatic, antiobesity, antiviral, anticancer, immunestimulants and the like.Type: GrantFiled: April 1, 2003Date of Patent: July 4, 2006Assignee: Council of Scientific and Industrial ResearchInventors: Janaswamy Madhusudana Rao, Rao Jagadeeshwar Rao, Upparapalli Sampath Kumar, Singireddy Venkat Reddy, Ashok Kumar Tiwari, Jhillusingh Yadav, Kondapuram Vijaya Raghavan
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Patent number: 7071180Abstract: The invention relates to compounds of the general formula (I): wherein Ar is optionally substituted aryl or heteroaryl; A is (i) —O—, —S—, —SO2—, —NH—, (ii) a C1-4-alkyl- or C1-6-acyl-substituted nitrogen atom or (iii) a C1-8-alkylene chain or a heteroalkylene chain having 2 to 8 chain atoms, which optionally contains at least one unsaturation, and which may be substituted and/or contain a bridge to form a saturated or partially or fully unsaturated ring having 3-8 ring members; B is —C(R4)(R5)—, —OC(R4)(R5)—, —N(R6)C(R4)(R5)—, —N(R6)—, —O—, —S— or —SO2—; R is optionally substituted C3-8-cycloalkyl, aryl or heteroaryl; R1 is (i) a saturated or unsaturated azacyclic or aminoazacyclic ring, or a saturated diazacyclic or aminodiazacyclic ring, which has 4 to 7 ring members, or a saturated aminoazabicyclic, azabicyclic or diazabicyclic ring which has 7 to 10 ring members, which rings optionally are substituted in one or more positions, or a group —[C(R4)(R5)]xN(R2a)(R3a)]; R2a, R3a, R4, R5, R6 and x are asType: GrantFiled: June 22, 2004Date of Patent: July 4, 2006Assignee: Biovitrum ABInventors: Björn Nilsson, Jan Tejbrant, Benjamin Pelcman, Erik Ringberg, Markus Thor, Jonas Nilsson, Mattias Jönsson
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Patent number: 7067679Abstract: Various processes are disclosed for preparing protected epicatechin oligomers having (4?,8)-interflavan linkages. In one process, a tetra-O-protected epicatechin monomer or oligomer is coupled with a protected, C-4 activated epicatechin monomer in the presence of an acidic clay such as a mortmorillonite clay. In another process, a 5,7,3?,4?-benzyl protected or a 3-acetyl-, 5,7,3?,4?-benzyl protected epicatechin or catechin monomer or oligomer is reacted with 3-O-acetyl-4-[(2-benzothiazolyl)thio]-5,7,3?,4?-tetra-O-benzylepicatechin in the presence of silver tetrafluoroborate. In another process, two 5,7,3?,4?-benzyl protected epicatechin monomers activated with 2-(benzothiazolyl)thio groups at the C-4 positions are cross-coupled in the presence of silver tetrofluoroborate. A process is also disclosed for reacting an unprotected epicatechin or catechin monomer with 4-(benzylthio)epicatechin or catechin.Type: GrantFiled: September 9, 2003Date of Patent: June 27, 2006Inventors: Alan P. Kozikowski, Werner Tückmantel, Leo J. Romanczyk, Jr.
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Patent number: 7056952Abstract: There are disclosed compounds of formulae (I) or (II) in which A is selected from the group consisting of (1), (2), (3) and (4); OH, and one of R1 and R2 is selected from H, OH and OCH3, and the other of R1 and R2 is selected from OH and OCH3; one of R3 and R4 is selected from H, OH and OCH3, and the other of R3 and R4 is selected from OH and OCH3; provided that at least one of the pairs R1, R2 and R3, R4 are both OH; R5 is selected from OH and OCH3; and denotes a single or double bond; and pharmaceutically acceptable salts and prodrugs thereof. The compounds of the invention are useful for the treatment of hormone-dependent conditions and cancers.Type: GrantFiled: May 1, 2000Date of Patent: June 6, 2006Assignee: G.J. Consultants Pty. Ltd.Inventor: George Eustace Joannou
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Patent number: 7015328Abstract: The present invention is directed to substituted coumarins and quinolines and analogs thereof, represented by the general Formula I: wherein A, B, X, Y, and Z are defined herein. The present invention also relates to the discovery that compounds having Formula I are activators of caspases and inducers of apoptosis. Therefore, the activators of caspases and inducers of apoptosis of this invention can be used to induce cell death in a variety of clinical conditions in which uncontrolled growth and spread of abnormal cells occurs.Type: GrantFiled: May 16, 2002Date of Patent: March 21, 2006Assignees: Cytovia, Inc., Shire BioChem Inc.Inventors: Sui Xiong Cai, Hong Zhang, William E. Kemnitzer, Songchun Jiang, John Drewe, Richard Storer
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Patent number: 7015338Abstract: Processes are disclosed for the production of linear and branched procyanidin oligomers having “n” procyanidin monomeric units where n is 2 to 18. The processes include coupling protected, activated monomers with an unprotected monomer to produce a partially protected (4?8) dimer. The dimer is optionally blocked, coupled with an activated protected monomer to produce a partially protected, optionally blocked trimer, and deprotected. The steps can be repeated to produce higher oligomers. Processes are also provided for producing (8?8), (8?6), and (6?6) dimers and doubly branched oligomers. Crystalline 8-bromo-tetra-O-benzyl-(?)-epicatechin is produced under certain conditions.Type: GrantFiled: April 15, 1999Date of Patent: March 21, 2006Assignee: Mars IncorporatedInventors: Leo J. Romancyzk, Jr., Amit Basak, Craig A. Townsend
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Patent number: 7012149Abstract: A process is provided for making (?)-epigallocatechin gallate (EGCG) by subjecting a green tea extract to chromatography on a macroporous polar resin, eluting EGCG from the resin with a polar elution solvent, optionally concentrating the eluate, optionally regenerating the resin by desorbing the remaining catechins, and optionally concentrating the desorbed catechins.Type: GrantFiled: September 18, 2002Date of Patent: March 14, 2006Assignee: DSM IP Assets B.V.Inventors: David Carl Burdick, Heinz Egger, Andrew George Gum, Ingo Koschinski, Elena Muelchi, Isabelle Prevot-Halter
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Patent number: 7009052Abstract: The present invention is directed to a new class of 6-sulfonamide quinoline and chromene derivative and to their use as androgen antagonists.Type: GrantFiled: March 16, 2004Date of Patent: March 7, 2006Assignee: Warner Lambert Company LLCInventors: Daniel Y. Du, Matthew Colin Thor Fyfe, Martin James Procter, Karen Lesley Schofield, Vilasben Kanji Shah, Geoffrey Martyn Williams
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Patent number: 6987125Abstract: Compositions and methods for the treatment, reduction and/or prevention of cardiovascular diseases and disorders are described. Individuals at high risk for developing or having cardiovascular disease or disorder may be treated with an effective dose of a polymethoxyflavone including limocitrin derivatives, quercetin derivatives, naturally occurring polymethoxyflavones, tocotrienols, and mixtures of these compounds.Type: GrantFiled: March 17, 2000Date of Patent: January 17, 2006Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Najla Guthrie, Elzbieta Maria Kurowska, John A. Manthey, Sylvia Horowitz, Robert M. Horowitz
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Patent number: 6951883Abstract: 2H-1-Benzopyran derivatives, processes for their preparation and use thereof for the preparation of pharmaceutical compositions for the prevention and treatment of postmenopausal pathologies.Type: GrantFiled: January 21, 2002Date of Patent: October 4, 2005Assignee: Chiesi Farmaceutici S.p.A.Inventors: Maurizio Delcanale, Gabriele Amari, Elisabetta Armani, Maurizio Civelli, Elisabetta Galbiati
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Patent number: 6916831Abstract: Compounds are described having a structure according to Formula I or Formula II: wherein: X is selected from the group consisting of O, NH, and S; Y is selected from the group consisting of O and S; m is from 1 to 3; n is from 1 to 5; R1 and R3 are each independently selected from the group consisting of H, hydroxy, lower alky, lower alkoxy, halo, amino, aminoalkyl, nitro, heteroaryl, —OC(?O)R6, —O(C?O)OR6; and —O(C?O)N(R6)2; and R2 is side chain such as an acetic acid side chain, where p is O to 4, R5 is hydroxy, alkoxy or amino, and R6 is H or lower alkyl, or a pharmaceutically acceptable salt thereof. The compounds are useful for the treatment of cancer.Type: GrantFiled: February 24, 2003Date of Patent: July 12, 2005Assignee: The University of North Carolina at Chapel HillInventors: Kuo-Hsiung Lee, Yi Xia, Zheng-Yu Yang, Kenneth F. Bastow, Sheng-Chu Kuo
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Patent number: 6908917Abstract: This invention provides compounds defined by Formula I or a pharmaceutically acceptable salt thereof, wherein R1, Q, Y2, Y3, Y4, U5, U6, U8, and R2 are as defined in the specification. The invention also provides pharmaceutical compositions comprising a compound of Formula I, or a pharmaceutically acceptable salt thereof, as defined in the specification, together with a pharmaceutically acceptable carrier, diluent, or excipient. The invention also provides methods of inhibiting an MMP-13 enzyme in an animal, comprising administering to the animal a compound of Formula I, or a pharmaceutically acceptable salt thereof. The invention also provides methods of treating a disease mediated by an MMP-13 enzyme in a patient, comprising administering to the patient a compound of Formula I, or a pharmaceutically acceptable salt thereof, either alone or in a pharmaceutical composition.Type: GrantFiled: August 5, 2003Date of Patent: June 21, 2005Assignee: Warner-Lambert CompanyInventor: Daniel Fred Ortwine
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Patent number: 6900241Abstract: Disclosed and claimed are cocoa extracts, compounds, combinations thereof and compositions containing the same, such as polyphenols or procyanidins, methods for preparing such extracts, compounds and compositions, as well as uses for them, especially a polymeric compound of the formula An, wherein A is a monomer of the formula: wherein n is an integer from 2 to 18, such that there is at least one terminal monomeric unit A, and one or a plurality of additional monomeric units; R, X, Y and Z are as defined in the specification.Type: GrantFiled: May 6, 2004Date of Patent: May 31, 2005Assignee: Mars, IncorporatedInventors: Leo J. Romanczyk, Jr., Harold H. Schmitz
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Patent number: 6900325Abstract: The present invention is directed to substituted coumarins and quinolines and analogs thereof, represented by the general Formula I: wherein A, B, X, Y, and Z are defined herein. The present invention also relates to the discovery that compounds having Formula I are activators of caspases and inducers of apoptosis. Therefore, the activators of caspases and inducers of apoptosis of this invention can be used to induce cell death in a variety of clinical conditions in which uncontrolled growth and spread of abnormal cells occurs.Type: GrantFiled: May 16, 2002Date of Patent: May 31, 2005Assignees: Cytovia, Inc., Shire BioChem Inc.Inventors: Sui Xiong Cai, Hong Zhang, William E. Kemnitzer, Songchun Jiang, John Drewe, Richard Storer
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Patent number: 6864377Abstract: Processes are disclosed for the production of linear and branched procyanidin oligomers having “n” procyanidin monomeric units where n is 2 to 18. The processes include coupling protected, activated monomers with an unprotected monomer to produce a partially protected (4?8) dimer. The dimer is optionally blocked, coupled with an activated protected monomer to produce a partially protected, optionally blocked trimer, and deprotected. The steps can be repeated to produce higher oligomers. Processes are also provided for producing (8?8), (8?6), and (6?6) dimers and doubly branched oligomers. Crystalline 8-bromo tetra-O-benzyl (?)-epicatechin is produced under certain conditions.Type: GrantFiled: August 6, 2002Date of Patent: March 8, 2005Assignee: Mars IncorporatedInventors: Leo J Romanczyk, Jr., Amit Basak, Craig A Townsend
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Patent number: 6849746Abstract: A process is disclosed for the production of polyphenol oligomers having n polyphenol monomeric units, n being an integer from 2-18. The process includes coupling of a protected polyphenol, having protected phenolic hydroxyl groups, with a C-4 functionalized polyphenol monomer. The protected polyphenol may be a protected polyphenol monomer or a protected polyphenol oligomer having 2-17 monomeric units. Advantageously, polyphenol monomeric units forming the polyphenol oligomers may be the same or different flavanoid compounds.Type: GrantFiled: January 31, 2003Date of Patent: February 1, 2005Assignee: Mars, Inc.Inventors: Leo J. Romanczyk, Jr., Alan P. Kozikowski, Werner Tueckmantel, Marc E. Lippman
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Patent number: 6841687Abstract: This invention relates to a process for isolating (?)-epicatechin from a new plant source namely Dichrostachys cinerea in significant yield.Type: GrantFiled: February 24, 2003Date of Patent: January 11, 2005Assignee: Council of Scientific and Industrial ResearchInventors: Janaswamy Madhusudana Rao, Rao Jagadeeshwar Rao, Jhillu Singh Yadav, Kondapuram Vijaya Raghavan
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Patent number: 6812353Abstract: Chromanone derivatives of the formula I in which R1 to R4 are each, independently of one another, H, A, CN, Hal, OR5, COOR5, CF3, OCF3, NO2, Ar, OAr, N(R5)2 or CON(R5)2, R5 is H or A, A is alkyl having 1 to 6 carbon atoms, Ar is phenyl which is unsubstituted or substituted by A, OR5, CN, Hal, CF3, OCF3, NO2 or N(R5)2, Hal is F, Cl, Br or I, and their salts, are suitable as intermediates in the synthesis of medicaments.Type: GrantFiled: July 29, 2003Date of Patent: November 2, 2004Assignee: Merck Patent Gesellschaft mit beschränkter HaftungInventors: Heinz-Hermann Bokel, Christoph Muermann, Uschi Schmid-Grossmann
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Patent number: 6808762Abstract: The present invention relates to oxabicyclooctanes of the general formula I. in which R1, R2, A1, A2, A3, A4, L1, L2, n1, n2 and n3 have the meanings specified in claim 1, and to their use in liquid-crystalline media.Type: GrantFiled: October 1, 2002Date of Patent: October 26, 2004Assignee: Merck Patent GmbHInventors: Matthias Bremer, Michael Heckmeier, Melanie Klasen-Memmer, Harald Lannert
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Patent number: 6809114Abstract: This invention relates to benzopyran derivatives of the formula (I) wherein, R1 and R2 represent each independently a C1-6alkyl group, etc, R3 represents a hydroxyl group, etc, R4 represents a hydrogen atom, etc, R6 represents a hydrogen atom, R7 represents a hydrogen atom, etc, X is absent, or represents C═O, etc, R8 represents a hydrogen atom, a C1-6alkyl group, etc, R9 represents a hydrogen atom or a nitro group, when R9 represents a nitro group, Y represents a C4-8alkylene group, —(CH2)m—CR11R12—(CH2)n— or —(CH2)o—O—(CH2)p—, R5 represents a hydrogen atom, an amino group, a C1-6alkoxy group, a C1-6alkylthio group, a C1-6alkylamino group, a C1-6 alkoxycarbonylamino group, etc, or pharmaceutically acceptable salts thereof. These compounds are useful as an antiarrhythmic agent.Type: GrantFiled: July 14, 2003Date of Patent: October 26, 2004Assignee: Nissan Chemical Industries, Ltd.Inventors: Yoshio Ohara, Kazuhiko Ohrai, Kazufumi Yanagihara, Yukihiro Shigeta, Toru Tsukagoshi, Toru Yamashita
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Patent number: 6803129Abstract: The present invention relates to an organic light emitting diode (OLED) device, comprising an anode disposed on a substrate, an organic EL layer disposed on the anode and a cathode disposed on the organic EL layer.Type: GrantFiled: April 25, 2003Date of Patent: October 12, 2004Assignee: RiTdisplay CorporationInventors: Hsien-Chang Lin, Chih-Hao Kung, Chung-Cheng Pai, Shwu-Ju Shieh, Tzu-Chin Tang
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Patent number: 6794384Abstract: The present invention concerns prodrugs whose aromatic oxidation, particularly their enzymatic aromatic hydroxylation, results in their activation by the release of a drug moiety. It particularly concerns anti-tumor prodrugs and those which are specifically activated by the hydroxylation activity of the P-450 enzyme CYP1B1. Also provided are methods of detection of aromatic oxidation activity.Type: GrantFiled: August 7, 2000Date of Patent: September 21, 2004Assignee: De Montfort UniversityInventors: Gerard Andrew Potter, Lawrence Hylton Patterson, Michael Danny Burke
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Patent number: 6780995Abstract: A series of activated iodo-benzamide derivatives are described as antineoplastic and antiviral drug compounds. The compounds generally possess a chelating group, a thiol trapping group and an activating group. The presumptive mechanism of action in preventing cancer cell and virus replication is through inhibition of the binding of transcription factors to zinc finger binding domains. The compounds are effective in inhibiting growth of a variety of human and animal tumor and leukemia cell lines at low concentrations.Type: GrantFiled: November 25, 2002Date of Patent: August 24, 2004Assignee: Isotechnika Inc.Inventors: Randall W. Yatscoff, Robert T. Foster, Selvaraj Naicker
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Patent number: 6781002Abstract: The invention relates to a process for the isolation of (−)-mesquitol in substantial (1.5%) yields from Dichrostachys cinerea and also the usage of (−)-mesquitol as an antioxidant/free-radical scavenger.Type: GrantFiled: February 28, 2003Date of Patent: August 24, 2004Assignee: Council of Scientific & Industrial ResearchInventors: Janaswamy Madhusudana Rao, Rao Jagadeeshwar Rao, Ashok Kumar Tiwari, Jhillu Singh Yadav, Kondapuram Vijaya Raghavan
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Patent number: 6759401Abstract: The invention relates to compounds of the general formula (I): wherein Ar is optionally substituted aryl or heteroaryl; A is (i) —O—, —S—, —SO2—, —NH—, (ii) a C1-4-alkyl- or C1-6-acyl-substituted nitrogen atom or (iii) a C1-8-alkylene chain or a heteroalkylene chain having 2 to 8 chain atoms, which optionally contains at least one unsaturation, and which may be substituted and/or contain a bridge to form a saturated or partially or fully unsaturated ring having 3-8 ring members; B is —C(R4)(R5)—, —OC(R4)(R5)—, —N(R6)C(R4)(R5)—, —N(R6)—, —O—, —S— or —SO2—; R is optionally substituted C3-8-cycloalkyl, aryl or heteroaryl; R1 is (i) a saturated or unsaturated azacyclic or aminoazacyclic ring, or a saturated diazacyclic or aminodiazacyclic ring, which has 4 to 7 ring members, or a saturated aminoazabicyclic, azabicyclic or diazabicyclic ring which has 7 to 10 riType: GrantFiled: October 11, 2002Date of Patent: July 6, 2004Assignee: Biovitrum ABInventors: Björn Nilsson, Jan Tejbrant, Benjamin Pelcman, Erik Ringberg, Markus Thor, Jonas Nilsson, Mattias Jönsson
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Publication number: 20040116716Abstract: The invention relates to a process for the isolation of (−)-mesquitol in substantial (1.5%) yields from Dichrostachys cinerea and also the usage of (−)-mesquitol as an antioxidant/free-radical scavenger.Type: ApplicationFiled: February 28, 2003Publication date: June 17, 2004Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCHInventors: Janaswamy Madhusudana Rao, Rao Jagadeeshwar Rao, Ashok Kumar Tiwari, Jhillu Singh Yadav, Kondapuram Vijaya Raghavan
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Patent number: 6747059Abstract: Cocoa extracts which include procyanidin monomers and their oligomers are useful in the modulation of inflammatory pathways, in the maintenance of the vascular health of a mammal and as an antibacterial treatment. The liquid or dry cocoa extracts can be included in foods, food supplements and pharmaceuticals for the inhibition of COX activity, the inhibition of LOX activity, the enhancement of nitric oxide production, the modulation of eicosanoids and endothelin, and the modulation of platelet activity.Type: GrantFiled: December 10, 1999Date of Patent: June 8, 2004Assignee: Mars, IncorporatedInventors: Leo J. Romanczyk, Jr., Harold H. Schmitz
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Patent number: 6716998Abstract: This invention provides a process for the stereospecific preparation of 2-yl-chroman and -chromene derivatives of the formula: These compounds are useful for the preparation of optically active 2-aminomethyl- and 2-azaheterocyclylmethyl-chromans.Type: GrantFiled: October 4, 2002Date of Patent: April 6, 2004Assignee: WyethInventor: Jonathan L. Gross
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Patent number: 6706756Abstract: The present invention is an isolated compound and method of inducing endothelium-dependent relaxation in blood vessels including the step of introducing isolated procyanidins having a preponderance of (−)-epicatechins to a patient wherein the procyanidins are preferably galloylated. To achieve both bioavailability and potency, it is also preferred that the number of epicatechins monomers forming each procyanidin is between two and five. More specifically, isolated epicatechin-(4-8)-epicatechin-(4-8)-epicatechin-gallate (C1-gallate) is administered to the patient.Type: GrantFiled: November 18, 2002Date of Patent: March 16, 2004Assignee: University of South FloridaInventor: David F. Fitzpatrick
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Patent number: 6677371Abstract: This invention relates to a 4-oxybenzopyran derivative of formula (I) wherein, R1 and R2 represent each independently a hydrogen atom, a C1-6 alkyl group or a phenyl group; R3 represents a hydroxyl group or C1-6 alkylcarbonyloxy group; R4 represents a hydrogen atom, a C3-6 cycloalkyl group, a C1-6 alkyl group, a C1-6 alkylcarbonyl group, a C1-6 alkylaminocarbonyl group, a di-C1-6 alkylaminocarbonyl group, an aryl group or a heteroaryl group; R5 represents a hydrogen atom or a C1-6 alkyl group; X is absent or represents C═O or SO2; R6 represents a hydrogen atom, a C1-6 alkyl group or a C3-6 cycloalkyl group; R7 represents a hydrogen atom, a halogen atom, a nitro group or a cyano group; or a pharmaceutically acceptable salt thereof. And this invention also relates to a drug for treating arrhytmia having the prolongation effect on the functional refractory period comprising said compound or a pharmaceutically acceptable salt thereof as an active ingredient.Type: GrantFiled: March 29, 2002Date of Patent: January 13, 2004Assignee: Nissan Chemical Industries, Ltd.Inventors: Keizo Tanikawa, Kazuhiko Ohrai, Kazufumi Yanagihara, Yukihiro Shigeta, Toru Tsukagoshi, Toru Yamashita
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Patent number: 6646136Abstract: Chroman derivatives of the formula I in which R1 is acyl having 1-6 C atoms, —CO—R5 or an amino protective group, R2 is H or alkyl having 1-6 C atoms, R3, R4 in each case independently of one another are H, alkyl having 1-6 C atoms, CN, Hal or COOR2, R5 is phenyl which is unsubstituted or mono- or disubstituted by alkyl having 1-6 C atoms, OR2 or Hal, X is H, H or O, Hal is F, Cl, Br or I, and their salts, are suitable as intermediates in the synthesis of medicaments.Type: GrantFiled: February 28, 2002Date of Patent: November 11, 2003Assignee: Merck Patent GmbHInventors: Heinz-Herman Bokel, Peter Mackert, Christoph Müramann, Nobert Schweickert
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Patent number: 6645997Abstract: A class of benzopyrancarboxylic acid derivatives comprises compounds that are potent agonists of PPAR alpha and/or gamma, and are therefore useful in the treatment, control or prevention of non-insulin dependent diabetes mellitus (NIDDM), hyperglycemia, dyslipidemia, hyperlipidemia, hypercholesterolemia, hypertriglyceridemia, atherosclerosis, obesity, vascular restenosis, inflammation, and other PPAR alpha and/or gamma mediated diseases, disorders and conditions.Type: GrantFiled: September 24, 2001Date of Patent: November 11, 2003Assignee: Merck & Co., Inc.Inventors: Soumya P. Sahoo, Hiroo Koyama, Daniel J. Miller, Julia K. Boueres, Ranjit C. Desai
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Publication number: 20030203909Abstract: The present invention provides a compound represented by the formula (I) 1Type: ApplicationFiled: April 29, 2003Publication date: October 30, 2003Inventors: Hiroyuki Ushio, Youichiro Naito, Naoki Sugiyama, Takafumi Kawaguchi, Makio Ohtsuki, Kenji Chiba
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Patent number: 6638685Abstract: A chemically amplified photo-resist contains a photoacid generator for changing the solubility of resin after exposure to 130-220 nanometer wavelength light, and the photoacid generator contains two kinds of sulfonium salt compound expressed by general formulae [1] and [2] so that the chemically amplified photo-resist is improved in resolution, sensitivity and smoothness on side surfaces of a transferred pattern.Type: GrantFiled: November 14, 2001Date of Patent: October 28, 2003Assignee: NEC CorporationInventors: Katsumi Maeda, Shigeyuki Iwasa, Kaichiro Nakano, Etsuo Hasegawa
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Patent number: 6638971Abstract: Polyphenol-containing compositions, for example cocoa procyanidin monomer and/or oligomer-containing compositions, and their use inhibiting bacterial growth are disclosed. Compositions may be used for human and veterinary animal administration and may be, for example, in a form of a food, a dietary supplement, or a pharmaceutical.Type: GrantFiled: February 5, 2001Date of Patent: October 28, 2003Assignee: Mars, IncorporatedInventors: Leo J. Romanczyk, Jr., John F. Hammerstone, Jr., Margaret M. Buck, Laurie S. Post, Giovanni G. Cipolla, Craig A. McClelland, Jeff A. Mundt, Harold H. Schmitz
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Publication number: 20030171372Abstract: The invention provides a method, compounds, and compositions for inhibiting the replication or proliferation of a virus. In accordance with the invention, at least one cannabichromene derivative is exposed to the virus, a host cell, or an infected cell under conditions sufficient to inhibit the replication or proliferation of the virus.Type: ApplicationFiled: January 16, 2003Publication date: September 11, 2003Applicant: Immugen Pharmaceuticals, Inc.Inventor: Craig R. Travis
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Patent number: 6589962Abstract: Certain &agr;-hydroxy-&ggr;-[[(carbocyclic- or heterocyclic-substituted)amino]carbonyl]alkanamide derivatives are described as inhibitors of HIV protease and inhibitors of HIV replication. These compounds are useful in the prevention or treatment of infection by HIV and the treatment of AIDS, either as compounds, pharmaceutically acceptable salts, pharmaceutical composition ingredients, whether or not in combination with other antivirals, immunomodulators, antibiotics or vaccines. Methods of treating AIDS and methods of preventing or treating infection by HIV are also described. These compounds are effective against HIV viral mutants which are resistant to HIV protease inhibitors currently used for treating AIDS and HIV infection.Type: GrantFiled: April 16, 2002Date of Patent: July 8, 2003Assignee: Merck & Co., Inc.Inventors: James R Tata, Zhijian Lu, Subharekha Raghavan, Tracy T. Huening, Thomas A. Rano, Mark G. Charest