Chalcogen Bonded Directly To The Hetero Ring Patents (Class 549/399)
  • Patent number: 7268240
    Abstract: 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: Grant
    Filed: May 28, 2004
    Date of Patent: September 11, 2007
    Inventors: Leo J. Romanczyk, Jr., Alan P. Kozikowski, Werner Tueckmantel, Marc E. Lippman
  • Patent number: 7247355
    Abstract: 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: Grant
    Filed: December 16, 2005
    Date of Patent: July 24, 2007
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Kouki Sagou, Atsuko Fujita
  • Patent number: 7244855
    Abstract: 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: Grant
    Filed: October 2, 2003
    Date of Patent: July 17, 2007
    Inventors: Alan P. Kozikowski, Werner Tückmantel, Leo J. Romanczyk, Jr., Xingquan Ma
  • Patent number: 7244763
    Abstract: 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: Grant
    Filed: February 6, 2004
    Date of Patent: July 17, 2007
    Assignee: Warner Lambert Company LLC
    Inventors: Larry D. Bratton, Xue-Min Cheng, Noe Erasga, Gary F. Filzen, Andrew G. Geyer, Chitase Lee, Bharat K. Trivedi, Paul C. Unangst
  • Patent number: 7226918
    Abstract: 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: Grant
    Filed: August 14, 2002
    Date of Patent: June 5, 2007
    Assignee: Cancer Research Technology Limited
    Inventors: 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
  • Patent number: 7226644
    Abstract: 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: Grant
    Filed: June 25, 2004
    Date of Patent: June 5, 2007
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Takashi Matsumoto, Tetsuo Kusumoto, Shotaro Kawakami
  • Patent number: 7214706
    Abstract: 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: Grant
    Filed: February 26, 2001
    Date of Patent: May 8, 2007
    Assignee: Akzo Nobel N.V.
    Inventors: Gerrit Herman Veeneman, Neeltje Miranda Teerhuis
  • Patent number: 7148240
    Abstract: 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: Grant
    Filed: August 23, 2001
    Date of Patent: December 12, 2006
    Assignee: Sanofi-Aventis
    Inventors: Jean-Louis Assens, Claude Bernhart, Frédérique Cabanel-Haudricourt, Dino Nisato
  • Patent number: 7138429
    Abstract: 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: Grant
    Filed: March 14, 2002
    Date of Patent: November 21, 2006
    Assignee: Japan Sci. Tech. Corp.
    Inventors: Toshihiko Osawa, Kenichiro Minato, Yoshiaki Miyake
  • Patent number: 7122573
    Abstract: 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: Grant
    Filed: December 6, 2002
    Date of Patent: October 17, 2006
    Assignee: SRI International
    Inventors: Nurulain Zaveri, Wan-Ru Chao, Ahlem Bensari
  • Patent number: 7109236
    Abstract: 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: Grant
    Filed: December 8, 2003
    Date of Patent: September 19, 2006
    Assignee: SRI International
    Inventors: Nurulain Zaveri, Wan-Ru Chao, Ahlem Bensari
  • Patent number: 7109327
    Abstract: 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: Grant
    Filed: June 14, 2002
    Date of Patent: September 19, 2006
    Assignee: Centre National de la Recherche Scientifique (CNRS)
    Inventors: Claude Thal, Catherine Guillou, Jean-Luc Beunard, Emmanuel Gras, Pierre Potier
  • Patent number: 7102020
    Abstract: 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: Grant
    Filed: December 18, 2003
    Date of Patent: September 5, 2006
    Inventors: Zhendong Jin, Ying Kang
  • Patent number: 7071341
    Abstract: 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: Grant
    Filed: April 1, 2003
    Date of Patent: July 4, 2006
    Assignee: Council of Scientific and Industrial Research
    Inventors: Janaswamy Madhusudana Rao, Rao Jagadeeshwar Rao, Upparapalli Sampath Kumar, Singireddy Venkat Reddy, Ashok Kumar Tiwari, Jhillusingh Yadav, Kondapuram Vijaya Raghavan
  • Patent number: 7071180
    Abstract: 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 as
    Type: Grant
    Filed: June 22, 2004
    Date of Patent: July 4, 2006
    Assignee: Biovitrum AB
    Inventors: Björn Nilsson, Jan Tejbrant, Benjamin Pelcman, Erik Ringberg, Markus Thor, Jonas Nilsson, Mattias Jönsson
  • Patent number: 7067679
    Abstract: 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: Grant
    Filed: September 9, 2003
    Date of Patent: June 27, 2006
    Inventors: Alan P. Kozikowski, Werner Tückmantel, Leo J. Romanczyk, Jr.
  • Patent number: 7056952
    Abstract: 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: Grant
    Filed: May 1, 2000
    Date of Patent: June 6, 2006
    Assignee: G.J. Consultants Pty. Ltd.
    Inventor: George Eustace Joannou
  • Patent number: 7015328
    Abstract: 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: Grant
    Filed: May 16, 2002
    Date of Patent: March 21, 2006
    Assignees: Cytovia, Inc., Shire BioChem Inc.
    Inventors: Sui Xiong Cai, Hong Zhang, William E. Kemnitzer, Songchun Jiang, John Drewe, Richard Storer
  • Patent number: 7015338
    Abstract: 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: Grant
    Filed: April 15, 1999
    Date of Patent: March 21, 2006
    Assignee: Mars Incorporated
    Inventors: Leo J. Romancyzk, Jr., Amit Basak, Craig A. Townsend
  • Patent number: 7012149
    Abstract: 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: Grant
    Filed: September 18, 2002
    Date of Patent: March 14, 2006
    Assignee: DSM IP Assets B.V.
    Inventors: David Carl Burdick, Heinz Egger, Andrew George Gum, Ingo Koschinski, Elena Muelchi, Isabelle Prevot-Halter
  • Patent number: 7009052
    Abstract: The present invention is directed to a new class of 6-sulfonamide quinoline and chromene derivative and to their use as androgen antagonists.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: March 7, 2006
    Assignee: Warner Lambert Company LLC
    Inventors: Daniel Y. Du, Matthew Colin Thor Fyfe, Martin James Procter, Karen Lesley Schofield, Vilasben Kanji Shah, Geoffrey Martyn Williams
  • Patent number: 6987125
    Abstract: 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: Grant
    Filed: March 17, 2000
    Date of Patent: January 17, 2006
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Najla Guthrie, Elzbieta Maria Kurowska, John A. Manthey, Sylvia Horowitz, Robert M. Horowitz
  • Patent number: 6951883
    Abstract: 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: Grant
    Filed: January 21, 2002
    Date of Patent: October 4, 2005
    Assignee: Chiesi Farmaceutici S.p.A.
    Inventors: Maurizio Delcanale, Gabriele Amari, Elisabetta Armani, Maurizio Civelli, Elisabetta Galbiati
  • Patent number: 6916831
    Abstract: 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: Grant
    Filed: February 24, 2003
    Date of Patent: July 12, 2005
    Assignee: The University of North Carolina at Chapel Hill
    Inventors: Kuo-Hsiung Lee, Yi Xia, Zheng-Yu Yang, Kenneth F. Bastow, Sheng-Chu Kuo
  • Patent number: 6908917
    Abstract: 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: Grant
    Filed: August 5, 2003
    Date of Patent: June 21, 2005
    Assignee: Warner-Lambert Company
    Inventor: Daniel Fred Ortwine
  • Patent number: 6900241
    Abstract: 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: Grant
    Filed: May 6, 2004
    Date of Patent: May 31, 2005
    Assignee: Mars, Incorporated
    Inventors: Leo J. Romanczyk, Jr., Harold H. Schmitz
  • Patent number: 6900325
    Abstract: 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: Grant
    Filed: May 16, 2002
    Date of Patent: May 31, 2005
    Assignees: Cytovia, Inc., Shire BioChem Inc.
    Inventors: Sui Xiong Cai, Hong Zhang, William E. Kemnitzer, Songchun Jiang, John Drewe, Richard Storer
  • Patent number: 6864377
    Abstract: 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: Grant
    Filed: August 6, 2002
    Date of Patent: March 8, 2005
    Assignee: Mars Incorporated
    Inventors: Leo J Romanczyk, Jr., Amit Basak, Craig A Townsend
  • Patent number: 6849746
    Abstract: 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: Grant
    Filed: January 31, 2003
    Date of Patent: February 1, 2005
    Assignee: Mars, Inc.
    Inventors: Leo J. Romanczyk, Jr., Alan P. Kozikowski, Werner Tueckmantel, Marc E. Lippman
  • Patent number: 6841687
    Abstract: This invention relates to a process for isolating (?)-epicatechin from a new plant source namely Dichrostachys cinerea in significant yield.
    Type: Grant
    Filed: February 24, 2003
    Date of Patent: January 11, 2005
    Assignee: Council of Scientific and Industrial Research
    Inventors: Janaswamy Madhusudana Rao, Rao Jagadeeshwar Rao, Jhillu Singh Yadav, Kondapuram Vijaya Raghavan
  • Patent number: 6812353
    Abstract: 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: Grant
    Filed: July 29, 2003
    Date of Patent: November 2, 2004
    Assignee: Merck Patent Gesellschaft mit beschränkter Haftung
    Inventors: Heinz-Hermann Bokel, Christoph Muermann, Uschi Schmid-Grossmann
  • Patent number: 6808762
    Abstract: 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: Grant
    Filed: October 1, 2002
    Date of Patent: October 26, 2004
    Assignee: Merck Patent GmbH
    Inventors: Matthias Bremer, Michael Heckmeier, Melanie Klasen-Memmer, Harald Lannert
  • Patent number: 6809114
    Abstract: 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: Grant
    Filed: July 14, 2003
    Date of Patent: October 26, 2004
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Yoshio Ohara, Kazuhiko Ohrai, Kazufumi Yanagihara, Yukihiro Shigeta, Toru Tsukagoshi, Toru Yamashita
  • Patent number: 6803129
    Abstract: 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: Grant
    Filed: April 25, 2003
    Date of Patent: October 12, 2004
    Assignee: RiTdisplay Corporation
    Inventors: Hsien-Chang Lin, Chih-Hao Kung, Chung-Cheng Pai, Shwu-Ju Shieh, Tzu-Chin Tang
  • Patent number: 6794384
    Abstract: 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: Grant
    Filed: August 7, 2000
    Date of Patent: September 21, 2004
    Assignee: De Montfort University
    Inventors: Gerard Andrew Potter, Lawrence Hylton Patterson, Michael Danny Burke
  • Patent number: 6780995
    Abstract: 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: Grant
    Filed: November 25, 2002
    Date of Patent: August 24, 2004
    Assignee: Isotechnika Inc.
    Inventors: Randall W. Yatscoff, Robert T. Foster, Selvaraj Naicker
  • Patent number: 6781002
    Abstract: 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: Grant
    Filed: February 28, 2003
    Date of Patent: August 24, 2004
    Assignee: Council of Scientific & Industrial Research
    Inventors: Janaswamy Madhusudana Rao, Rao Jagadeeshwar Rao, Ashok Kumar Tiwari, Jhillu Singh Yadav, Kondapuram Vijaya Raghavan
  • Patent number: 6759401
    Abstract: 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 ri
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: July 6, 2004
    Assignee: Biovitrum AB
    Inventors: Björn Nilsson, Jan Tejbrant, Benjamin Pelcman, Erik Ringberg, Markus Thor, Jonas Nilsson, Mattias Jönsson
  • Publication number: 20040116716
    Abstract: 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: Application
    Filed: February 28, 2003
    Publication date: June 17, 2004
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Janaswamy Madhusudana Rao, Rao Jagadeeshwar Rao, Ashok Kumar Tiwari, Jhillu Singh Yadav, Kondapuram Vijaya Raghavan
  • Patent number: 6747059
    Abstract: 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: Grant
    Filed: December 10, 1999
    Date of Patent: June 8, 2004
    Assignee: Mars, Incorporated
    Inventors: Leo J. Romanczyk, Jr., Harold H. Schmitz
  • Patent number: 6716998
    Abstract: 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: Grant
    Filed: October 4, 2002
    Date of Patent: April 6, 2004
    Assignee: Wyeth
    Inventor: Jonathan L. Gross
  • Patent number: 6706756
    Abstract: 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: Grant
    Filed: November 18, 2002
    Date of Patent: March 16, 2004
    Assignee: University of South Florida
    Inventor: David F. Fitzpatrick
  • Patent number: 6677371
    Abstract: 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: Grant
    Filed: March 29, 2002
    Date of Patent: January 13, 2004
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Keizo Tanikawa, Kazuhiko Ohrai, Kazufumi Yanagihara, Yukihiro Shigeta, Toru Tsukagoshi, Toru Yamashita
  • Patent number: 6646136
    Abstract: 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: Grant
    Filed: February 28, 2002
    Date of Patent: November 11, 2003
    Assignee: Merck Patent GmbH
    Inventors: Heinz-Herman Bokel, Peter Mackert, Christoph Müramann, Nobert Schweickert
  • Patent number: 6645997
    Abstract: 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: Grant
    Filed: September 24, 2001
    Date of Patent: November 11, 2003
    Assignee: Merck & Co., Inc.
    Inventors: Soumya P. Sahoo, Hiroo Koyama, Daniel J. Miller, Julia K. Boueres, Ranjit C. Desai
  • Publication number: 20030203909
    Abstract: The present invention provides a compound represented by the formula (I) 1
    Type: Application
    Filed: April 29, 2003
    Publication date: October 30, 2003
    Inventors: Hiroyuki Ushio, Youichiro Naito, Naoki Sugiyama, Takafumi Kawaguchi, Makio Ohtsuki, Kenji Chiba
  • Patent number: 6638685
    Abstract: 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: Grant
    Filed: November 14, 2001
    Date of Patent: October 28, 2003
    Assignee: NEC Corporation
    Inventors: Katsumi Maeda, Shigeyuki Iwasa, Kaichiro Nakano, Etsuo Hasegawa
  • Patent number: 6638971
    Abstract: 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: Grant
    Filed: February 5, 2001
    Date of Patent: October 28, 2003
    Assignee: Mars, Incorporated
    Inventors: 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
  • Publication number: 20030171372
    Abstract: 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: Application
    Filed: January 16, 2003
    Publication date: September 11, 2003
    Applicant: Immugen Pharmaceuticals, Inc.
    Inventor: Craig R. Travis
  • Patent number: 6589962
    Abstract: 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: Grant
    Filed: April 16, 2002
    Date of Patent: July 8, 2003
    Assignee: Merck & Co., Inc.
    Inventors: James R Tata, Zhijian Lu, Subharekha Raghavan, Tracy T. Huening, Thomas A. Rano, Mark G. Charest