Plural Chalcogens Bonded Directly To The Hetero Ring Patents (Class 549/400)
  • Patent number: 5760074
    Abstract: The invention relates to certain cis and trans benzopyrans having substituted benzamides at position C-4 and to their use in treating and/or preventing certain CNS disorders.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: June 2, 1998
    Assignee: SmithKline Beecham p.l.c.
    Inventors: Wai Ngor Chan, Helen Kate Ann Morgan, Mervyn Thompson, John Morris Evans
  • Patent number: 5756538
    Abstract: Certain flavonoids, notably derivatives of flavone, chrysin and apigenin, together with dimers thereof such as amentoflavone, have been found to possess anxiolytic properties (i.e., anxiety reducing properties) without exhibiting a sedative effect. Novel compounds and pharmaceutical formulations are also described.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: May 26, 1998
    Assignee: University of Strathclyde
    Inventors: Bruce Kennedy Cassels, Federico Jose Dajas, Jorge Horacio Medina, Alejandro Constantino Paladini, Rodolfo Horacio Silveira
  • Patent number: 5702691
    Abstract: The present invention relates to flavanonol derivatives represented by formula (1): ##STR1## (wherein R.sup.1 represents an alkyl group, and each of R.sup.2 and R.sup.3 represents a hydrogen atom, an alkyl group which may have a substituent, an alkoxyl group which may have a substituent, a hydroxyl group, a cyano group, or a halogen atom), as well as to hair-nourishing and hair-growing compositions containing the derivatives. The compounds accelerate differentiation and proliferation of hair matrix cells, thereby exhibiting remarkable hair-nourishing and hair-growing effects.
    Type: Grant
    Filed: September 16, 1996
    Date of Patent: December 30, 1997
    Assignee: Kao Corporation
    Inventors: Susumu Ichinose, Yoshinori Nishizawa, Atsushi Ohuchi, Hideshi Kidena, Mitsuyuki Hotta
  • Patent number: 5675023
    Abstract: The present invention relates to a chromone derivative and an aldose reductase inhibitor comprising said compound as efective component, which is represented by the following formula: ##STR1## wherein R.sub.1 and R.sub.2 each represent a lower alkyl group, etc., R.sub.3 represents an oxygen atom, a sulfur atom, etc., R.sub.7 represents a phenyl group substituted or not substituted, etc., and R represents a hydrogen atom or a lower alkoxy group. The present compounds exhibit superior inhititory action on aldose reductase and are useful for the treatment of various complications of diseases in diabetes, such as cataract, retinopathy, keratopathy, nephropathy, and neuropathy.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: October 7, 1997
    Assignee: Tsumura & Co.
    Inventors: Yasushi Igarashi, Takuji Yamaguchi, Yoshimitsu Ogawa, Mika Tomita, Hiroko Hayashi, Toshitsugu Sato, Kunio Hosaka
  • Patent number: 5637709
    Abstract: Polychromatic compounds of pyrans having a substituted adamantane or a polycyclic ring system, with the exception of adamantane, in the 2-position of the pyran ring, having the structure ##STR1## whereby the residues R.sub.1 -R.sub.4 are independently substituents selected from the series H, alkyl, substituted phenyl, phenyl, naphthyl, OH, alkoxy (C.sub.1 -C.sub.4), halogen, alkylamino, dialkylamino, cyan, trifluormethyl, or, R.sub.1 and R.sub.2 or R.sub.3 and R.sub.4 or R.sub.2 and R.sub.3 are constituents of at least one condensed aromatic, heteroaromatic or an alkane ring, wherein said heteroaromatic ring is selected from the group consisting of pyridine, pyrimidine, pyridazine, quinoline, isoquinoline, naphthyridine, quinazoline, quinoxaline, phthalazine, pteridine, phenazine, and benzoquinoline which are substituted by the same residues as R.sub.1 -R.sub.
    Type: Grant
    Filed: February 9, 1995
    Date of Patent: June 10, 1997
    Assignee: Optische Werke G. Rodenstock
    Inventor: Manfred Melzig
  • Patent number: 5629424
    Abstract: Process for enriching the concentration of an enantiomer (or a diastereomer) in a mixture of optically active isomers. The process includes preparing a solution containing the mixture of the optically active isomers and a chiral collector in which the chiral collector and the enantiomer (or diastereomer) are associated with each other. A gas is bubbled through a pool of the solution to form a foam, the surfaces of the bubbles in the foam having the chiral collector and the enantiomer (or diastereomer) preferentially adsorbed thereto so that the concentration ratio of the optically active isomers at said bubble surfaces differs from that in the bulk of the pool. The foam is moved vertically through a column above the pool such that during said movement at least a portion of the bubbles comprising the foam break thereby allowing liquid to drain toward the pool to provide an internal reflux within the column.
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: May 13, 1997
    Assignee: The Curators of the University of Missouri
    Inventors: Daniel W. Armstrong, Yubing Tang
  • Patent number: 5616719
    Abstract: Photoactive indicator compounds of the formula ##STR1##
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: April 1, 1997
    Assignee: Behringwerke AG
    Inventors: Dariush Davalian, Rajendra Singh, Edwin F. Ullman
  • Patent number: 5596100
    Abstract: A method is provided for the regioselective, palladium catalyzed carbo- or heteroannulation of internal alkynes by aryl iodides containing o-substituted side chains to yield aromatic carbocyclic and heterocyclic ring systems.
    Type: Grant
    Filed: April 4, 1995
    Date of Patent: January 21, 1997
    Assignee: Iowa State University Research Foundation, Inc.
    Inventor: Richard C. Larock
  • Patent number: 5571844
    Abstract: The invention relates to amidinophenylalanine derivatives, to the synthesis of these compounds, to their use and to pharmaceutical compositions which contain these compounds which act as thrombin inhibitors.
    Type: Grant
    Filed: December 8, 1994
    Date of Patent: November 5, 1996
    Assignee: Behringwerke Aktiengesellschaft
    Inventors: Werner St uber, Rainer Koschinsky
  • Patent number: 5552551
    Abstract: Proton-transfer, low self-absorbing chromophores of the formula: ##STR1## wherein R.sub.2 and R.sub.3 are independently hydrogen, alkyl, aryl, cyano, nitro, halo or an ether group, R.sub.4 is O or N--H, and R.sub.5 is thienyl, naphthyl, furanyl, pyrrolyl, phenyl vinyl, diphenyl vinyl, phenyl ethynyl, hydroxy chromonyl phenyl, didecyloxy hydroxy chromonyl phenyl, phenyl or ##STR2## wherein R.sub.1 is vinyl, vinyl phenyl, vinyl benzyl, alkyl ethenyl, or alkyl phenyl ethenyl, provided that when R.sub.5 is phenyl and R.sub.2 and R.sub.3 are hydrogen, R.sub.4 is N--H.
    Type: Grant
    Filed: July 26, 1995
    Date of Patent: September 3, 1996
    Assignee: Florida State University
    Inventors: Joseph B. Schlenoff, Kurtis F. Johnson, Jayesh Dharia, Feng Gao
  • Patent number: 5550152
    Abstract: The invention relates to benzopyran leukotriene B.sub.4 (LTB.sub.4) antagonists and pharmaceutical compositions containing the compounds. The compounds inhibit the action of LTB.sub.4 and are therefore useful in the treatment of LTB.sub.4 induced illnesses such as inflammatory disorders.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: August 27, 1996
    Assignee: Pfizer Inc.
    Inventors: Kevin Koch, Lawrence S. Melvin, Jr., Lawrence A. Reiter, Sally G. Ruggeri
  • Patent number: 5521216
    Abstract: The present invention relates to a chromone derivative of formula (1): ##STR1## (wherein R.sub.1 and R.sub.2 are the same or different and independently represent a hydrogen atom or a lower alkyl group) as well as a synthetic intermediate thereof and an aldose reductase inhibitor comprising said derivative as an active ingredient. The chromone derivatives of the present invention can be easily synthesized, and are useful as aldose reductase inhibitor with an excellent inhibitory action on aldose reductase.
    Type: Grant
    Filed: May 12, 1994
    Date of Patent: May 28, 1996
    Assignee: Tsumura & Co.
    Inventors: Yasushi Igarashi, Takuji Yamaguchi, Kunio Hosaka
  • Patent number: 5510373
    Abstract: This invention relates to certain hydroxy derivatives of 3,4-dihydro-2,5,7,8-tetraalkyl-2H-1-benzopyran-2-carboxylic acids and the lactones thereof, to the processes and intermediates useful for their preparation and to their use as free radical scavengers useful in the treatment of tissue damage implicated with free oxygen radicals.
    Type: Grant
    Filed: October 5, 1994
    Date of Patent: April 23, 1996
    Assignee: Merrell Pharmaceuticals Inc.
    Inventors: J. Martin Grisar, Margaret A. Petty, Frank Bolkenius
  • Patent number: 5455267
    Abstract: The present invention relates to a chromone derivative and an aldose reductase inhibitor comprising said compound as efective component, which is represented by the following formula: ##STR1## wherein R.sub.1 and R.sub.2 each represent a lower alkyl group, etc., R.sub.3 represents an oxygen atom, a sulfur atom, etc., R.sub.7 represents a phenyl group substituted or not substituted, etc., and R represents a hydrogen atom or a lower alkoxy group. The present compounds exhibit superior inhititory action on aldose reductase and are useful for the treatment of various complications of diseases in diabetes, such as cataract, retinopathy, keratopathy, nephropathy, and neuropathy.
    Type: Grant
    Filed: October 12, 1994
    Date of Patent: October 3, 1995
    Assignee: Tsumura & Co.
    Inventors: Yasushi Igarashi, Takuji Yamaguchi, Yoshimitsu Ogawa, Mika Tomita, Hiroko Hayashi, Toshitsugu Sato, Kunio Hosaka
  • Patent number: 5416118
    Abstract: Novel bicyclic amides of the formula ##STR1## wherein Ar.sup.1 and Ar.sup.2 are phenyl, R.sup.2 -substituted phenyl, heteroaryl or R.sup.2 -substituted heteroaryl, wherein R.sup.2 is 1 to 3 substituents independently selected from the group consisting of halogeno, hydroxy, lower alkyl, lower alkoxy, nitro, amino, lower alkylamino and lower dialkylamino;X, Y and Z are --CH.sub.2 --, --CH(alkyl)--, --C(alkyl).sub.2 --, --NH--, --N(alkyl)--, --O-- or --SO.sub.r, wherein r is 0, 1 or 2, and m, n and p are 0 or 1;R.sup.1 is an alkyl chain of 1 to 25 carbon atoms; an alkyl chain substituted by one or more optionally substituted phenyl or heteroaryl groups; an alkyl chain --O--, --SO.sub.r, phenylene, R.sup.2 -substituted phenylene, heteroarylene or R.sup.
    Type: Grant
    Filed: September 28, 1993
    Date of Patent: May 16, 1995
    Assignee: Schering Corporation
    Inventors: John W. Clader, Thomas Fevig, Wayne Vaccaro, Joel G. Berger
  • Patent number: 5403842
    Abstract: The invention relates to benzopyranone and benzothiopyranone compounds, compositions and methods of use which have adrenergic and serotonergic activity.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: April 4, 1995
    Assignee: Recordati S.A., Chemical and Pharmaceutical Company
    Inventors: Amedeo Leonardi, Gianni Motta, Carlo Riva, Rodolfo Testa
  • Patent number: 5360915
    Abstract: A modified alkali metal or ammonium huminate being made from molecules of the group consisting of ##STR1## wherein R.sub.1, R.sub.3 and R.sub.4 are individually hydrogen or --OH, R.sub.2 is ##STR2## or --CH.sub.2 -- and R.sub.5 and R.sub.6 are individually selected from the group consisting of hydrogen, --OH and --OCH.sub.3, with the proviso that R.sub.4, R.sub.5 and R.sub.6 are not all hydrogen at the same time and their preparation and their medical uses.
    Type: Grant
    Filed: October 14, 1992
    Date of Patent: November 1, 1994
    Assignee: Rutgerswerke Aktiengesellschaft AG
    Inventors: Urs N. Riede, Bernhard Seubert
  • Patent number: 5359098
    Abstract: Sigma binding site agents having the formula ##STR1## wherein A.sup.1, A.sup.2, A.sup.3, B, y and 2 are defined in the specification, W is halogen, which are novel intermediates useful in preparing the presently binding site agents.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: October 25, 1994
    Assignee: Guilford Pharmaceuticals Inc.
    Inventors: Ronald H. Erickson, Kenneth J. Natalie, Jr., Michael J. Pontecorvo, Waclaw J. Rzeszotarski
  • Patent number: 5278174
    Abstract: Sigma binding site agents having the formula ##STR1## which are useful to inhibit sigma binding site-induced activity, pharmaceutical compositions including these agents, and methods of using these agents to inhibit sigma binding site-induced activity in mammals. Also disclosed are novel intermediates useful in preparing the presently invented agents.
    Type: Grant
    Filed: May 17, 1991
    Date of Patent: January 11, 1994
    Assignee: Scios Nova, Inc.
    Inventors: Ronald H. Erickson, Kenneth J. Natalie, Jr., Michael J. Pontecorvo, Waclaw J. Rzeszotarski
  • Patent number: 5276054
    Abstract: Substituted hexahydrobenzopyran derivatives of the Formulae A, B, or C are useful as angiotensin II antagonists: ##STR1##
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: January 4, 1994
    Assignee: Merck & Co., Inc.
    Inventors: Maria T. Diez, Michael A. Goetz, Robert A. Giacobbe, Otto D. Hensens, Leeyan Huang, Isabel Martin, E. Tracy T. Jones, Siobhan Stevens-Miles, Yu L. Kong
  • Patent number: 5232944
    Abstract: Novel chroman derivatives of the formula I ##STR1## in which X is O or NR.sup.11,Z is CH.sub.2, O, S or CHHal,R.sup.1 and R.sup.5 are each A,R.sup.2 is H or A,R.sup.1 and R.sup.2 together are also alkylene having 3-6 C atoms,R.sup.3 is OH or OAc,R.sup.4 is H,R.sup.3 and R.sup.4 together are also a bond,R.sup.6 and R.sup.7 are each H, A, HO, AO, CHO, ACO, ACS, HOOC, AOOC, AO--CS, ACOO, A--CS--O, hydroxyalkyl, NO.sub.2, NH.sub.2, NHA, NA.sub.2, CN, F, Cl, Br, I, CF.sub.3, ASO, ASO.sub.2, AO--SO, AO--SO.sub.2, AcNH, AO--CO--NH, H.sub.2 NSO, HANSO, A.sub.2 NSO, H.sub.2 NSO.sub.2, HANSO.sub.2, A.sub.2 NSO.sub.2, H.sub.2 NCO, HANCO, A.sub.2 NCO, H.sub.2 NCS, HANCS, A.sub.2 NCS, ASONH, ASO.sub.2 NH, AOSONH, AOSO.sub.2 NH, ACO-alkyl, nitro-alkyl, cyanoalkyl, A--C(.dbd.NOH) or A--C(.dbd.NNH.sub.2),R.sup.8 and R.sup.9 are each H or A or together are .dbd.O or .dbd.S,R.sup.10 is H, Hal, CHO or CH.sub.2 OH,R.sup.11 is H, A, Ac or CH.sub.
    Type: Grant
    Filed: April 20, 1992
    Date of Patent: August 3, 1993
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Rolf Gericke, Manfred Baumgarth, Ingeborg Lues, Jacques De Peyer, Rolf Bergmann
  • Patent number: 5223629
    Abstract: A process is disclosed for the preparation of (.+-.)-6-cyano-3,4-dihydro-2,2-dimethyl-trans-4-(2-oxo-1-pyrrol idino)-2H-1-benzopyran-3-ol of the Formula (VI) ##STR1## from 4-cyanophenol of the Formula (I) ##STR2## which comprises reacting 4-cyanophenol of the Formula (I) with isoprene, followed with bromination and dehydrobromination steps with formation of intermediates to react with 2-pyrrolidone resulting in obtaining the compound of the Formula (VI).
    Type: Grant
    Filed: December 17, 1991
    Date of Patent: June 29, 1993
    Assignee: Alkaloida Vegyeszeti Gyar
    Inventors: Tibor Timar, Tibor Eszenyi, Peter Sebok, Vilmos Galamb, Julia Fazekas, Terezia Istvan, Eva Kovach, Erika Nagy
  • Patent number: 5190956
    Abstract: Compounds useful as antiviral agents against DNA containing viruses, such as herpes group viruses, are disclosed. The compounds are selected from the group consisting of: ##STR1## and their pharmaceutically acceptable salts and solvates. Pharmaceutical compositions containing compounds represented by Formula 1.00 are disclosed. Also disclosed are methods of treating a viral infection using compounds represented by Formula 1.00The compounds of Formula 1.00 are also useful as intermediates to compounds of: ##STR2## Compounds of Formula 1.0 are useful as antiviral agents against the same viruses that the compounds of Formula 1.00 are useful against.
    Type: Grant
    Filed: September 7, 1990
    Date of Patent: March 2, 1993
    Assignee: Schering Corporation
    Inventors: Adriano Afonso, Jay Weinstein, Margaret J. Gentles
  • Patent number: 5189183
    Abstract: Novel aromatic amine derivatives of specific structure are useful intermediates for herbicides. The aromatic amine compounds have the structure shown by formula [I]: ##STR1## wherein Ar and A are as defined herein.
    Type: Grant
    Filed: October 16, 1990
    Date of Patent: February 23, 1993
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Daisuke Fukuoka, Katsuya Takahashi, Isao Hashimoto
  • Patent number: 5151442
    Abstract: Compounds of the formula ##STR1## in which: Z represents a halogen or a cyano, acetyl, trifluoroacetyl, nitro, C.sub.1 -C.sub.4 alkylthio, carboxyl, phosphono, dialkoxyphosphonyl or alkoxycarbonyl group, the alkylthio and alkoxy groups containing from 1 to 3 carbon atoms;R.sub.1 denotes a hydroxyl group and R.sub.2 represents hydrogen, or R.sub.1 and R.sub.2 taken together form an additional bond between the carbon atoms by which they are carried; andR.sub.3 representsa group NH--X--R.sub.4, in which X denotes a direct bond or an SO.sub.2 group and R.sub.4 represents a phenyl group which is unsubstituted or monosubstituted or disubstituted by a halogen, a nitro group, a C.sub.1 -C.sub.4 group, a trifluoromethyl group, an amino group, a group --N(Alk).sub.2, a group --COOAlk or a group OAlk, Alk denoting a C.sub.1 -C.sub.4 Alkyl group;a group --S--R.sub.5, in which R.sub.5 represents a C.sub.1 -C.sub.4 alkyl group, a C.sub.3 -C.sub.
    Type: Grant
    Filed: October 23, 1991
    Date of Patent: September 29, 1992
    Assignee: Sanofi
    Inventors: Georges Garcia, Alain Di Malta, Philippe Soubrie
  • Patent number: 5125954
    Abstract: The present invention relates to novel bicyclo ether derivatives, to compositions containing them, and to their method of use especially to control the growth of undesired vegetation in rice.
    Type: Grant
    Filed: November 2, 1990
    Date of Patent: June 30, 1992
    Assignee: E.I. Du Pont de Nemours and Company
    Inventors: James E. Powell, Richard B. Phillips
  • Patent number: 5116954
    Abstract: Substituted six-membered benzo-fused heterocycles of the formula (I) ##STR1## in which: X=0, NH, S.fwdarw.(O).sub.n (n=0 or 2);R.sub.1 is phenyl, phenyl substituted by methoxy, hydroxy, chlorine, fluorine, diethylaminoethoxy, phenoxy, 2-methyl-4-thiazolyl, 2-amino-4-thiazolyl, phenyl, amino, nitro, terbutyl, carboxymethyl, acetamido, dimethyltriazenyl, benzoyl, hexyl, undecyl, trifluoromethyl, carbamoyl; or R.sub.1 is trifluoromethyl, pyridyl-2,pyridyl-4;R.sub.2 is H, methoxy, hydroxy; orR.sub.1 and R.sub.2 are --CH.dbd.CH--CH.dbd.CH--;R.sub.3 and R.sub.4 are methoxy, hydroxy, fluorine or form a fused benzene ring;CR.sub.5 R.sub.6 R.sub.7 is carboxymethyl, --CH.sub.2 --PO.sub.3 H,--CH.sub.2 --PO(oET).sub.2, 4-methylpiperazinyl, aminomethyl,3-4-5-trimethoxyphenylaminomethyl, acetyl, bromoacetyl, hydroxyethyl, acetoxyethyl, mercaptomethyl, acetylthiomethyl, methoxy-carbopnylthiomethyl, --CH--CONH.sub.2, ##STR2## substituted thiazolyl, subsituted furanone, imidazo(1,2-a)pyridinyl, indolizinyl, or R.sub.4 and R.
    Type: Grant
    Filed: August 2, 1989
    Date of Patent: May 26, 1992
    Assignee: Lipha, Lyonnaise Industrielle Pharmaceutique
    Inventors: Philippe Briet, Jean-Jacques Berthelon, Francois Collonges
  • Patent number: 5071871
    Abstract: New benz[b]pyranes and pyranopyridines of formula I, ##STR1## wherein the significances of substituents V, T, W, R.sub.3 to R.sub.5, R.sub.9, R.sub.10, m, X, Y and Z are given in claim 1 and their N-oxides and their salts and their use in the treatment of raised blood pressure in the treatment of vascular disorders and other disorders in which a reduction in tension of the smooth muscles is therapeutically useful, as well as in the treatment of hair loss and baldness. Further the compounds are useful in the treatment of asthma and obstructive disorders of the respiratory system as well as in the prophylactic treatment of obstructive or inflammatory airways disease, for example asthma, as well as novel pharmaceutical compositions comprising said K.sup.+ channel activators suitable for such use.
    Type: Grant
    Filed: July 10, 1990
    Date of Patent: December 10, 1991
    Assignee: Sandoz Ltd.
    Inventors: Stefan Blarer, John Morley, Ian D. Chapman
  • Patent number: 5011950
    Abstract: Novel aromatic amine derivatives of specific structure are useful intermediates for herbicides. The aromatic amine compounds have the structure shown by formula [I]: ##STR1## wherein Ar and A are as defined herein.
    Type: Grant
    Filed: February 2, 1988
    Date of Patent: April 30, 1991
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Daisuke Fukuoka, Katsuya Takahashi, Isao Hashimoto
  • Patent number: 4954518
    Abstract: This invention relates to a 4H-1-benzopyran-4-one derivative represented by the formula: ##STR1## or a salt thereof, a process for producing the same and a pharmaceutical composition comprising the same as active ingredient.
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: September 4, 1990
    Assignee: Toyama Chemical Company, Ltd.
    Inventors: Shuntaro Takano, Chosaku Yoshida, Takihiro Inaba, Keiichi Tanaka, Ryuko Takeno, Hideyoshi Nagaki, Tomoya Shimotori, Shinji Makino
  • Patent number: 4897402
    Abstract: Novel HMG-CoA reductase inhibitors are useful as antihypercholesterolemic agents and are represented by stuctural formulae (I) and (II): ##STR1## wherein A is O, S(O).sub.n or N--R.sub.13.
    Type: Grant
    Filed: June 29, 1988
    Date of Patent: January 30, 1990
    Assignee: Merck & Co., Inc.
    Inventors: Mark E. Duggan, George D. Hartman
  • Patent number: 4838924
    Abstract: This invention relates to novel compounds of formula [I], a process for their production, and their use as a herbicide. ##STR1## wherein A represents the bond ##STR2## in which X is a hydrogen atom, a chlorine atom, a nitro group or a trifluoromethyl group;B represents a hydrogen atom, a methyl group or a methoxy group; andAr represents one member selected from the group consisting of ##STR3## in which R.sup.1 to R.sup.38, are as defined hereinafter.
    Type: Grant
    Filed: April 1, 1987
    Date of Patent: June 13, 1989
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Tetsuo Takematsu, Daisuke Fukuoka, Katsuya Takahashi, Isao Hashimoto
  • Patent number: 4829080
    Abstract: An aromatic benzopyranyl or benzothiopyranyl compound of the formula ##STR1## wherein n is 0 or 1,X represents ##STR2## R' represents H, OH, acyloxy or NH.sub.2, R" represents H or alkoxy orR' and R" taken together form an oxo, methano or hydroxyimino radical,R.sub.8 represents H, ##STR3## R.sub.9 represents H, alkyl, mono or polyhydroxyalkyl, aryl, aralkyl, a residue of a sugar or ##STR4## p equals 1, 2 or 3, r' and r" represent H, alkyl, monohydroxyalkyl, polyhydroxyalkyl, aryl, benzyl, the residue of an amino acid or an aminated sugar, or together form a heterocycle,R.sub.1, R.sub.2, R.sub.3 and R.sub.4 represents H or lower alkyl,R.sub.5, R.sub.6 and R.sub.7 represent H or methyl or when n=1, R.sub.5 and R.sub.7 taken together form with the benzene ring a naphthalene ring (R.sub.5 -R.sub.7 .dbd.--CH.dbd.CH--), andthe salts of said compounds as well as their geometric and optical isomers.These compounds are useful in pharmaceutical and cosmetic compositions.
    Type: Grant
    Filed: March 12, 1987
    Date of Patent: May 9, 1989
    Assignee: L'Oreal
    Inventors: Jean Maignan, Gerard Lang, Gerard Malle, Serge Restle, Braham Shroot
  • Patent number: 4764508
    Abstract: The invention relates to novel compounds comprising lipophilic complexes of silybin, silidianin, and silicristin with phospholipids, and the preparation of these complexes by non-conventional methods. Absorption of the novel compounds in the gastrointestinal tract is appreciably greater, resulting in higher plasma levels than for the individual flavanolignans. The resulting improvement in the pharmacokinetic and pharmacological parameters is such that the substances can advantageously be used in the treatment of acute and chronic liver disease of toxic, metabolic or infective origin or of degenerative nature.
    Type: Grant
    Filed: July 7, 1986
    Date of Patent: August 16, 1988
    Assignee: Inverni Della Beffa S.p.A.
    Inventors: Bruno Gabetta, Ezio Bombardelli, Giorgio Pifferi
  • Patent number: 4760088
    Abstract: Sulfide derivatives of catechins derived from condensed tannins have broad spectrum biocidal characteristics. Epicatechin-4-alkylsulfides and cupric complexes thereof containing up to 20, preferably 5 to 15, carbon atoms are particularly effective biocides against wood rotting fungi and gram-positive bacteria.Such sulfides are prepared by reacting condensed tannin, either in the form of a purified tannin extract or comminuted plant tissue, with an appropriate thiol under mild acidic conditions.
    Type: Grant
    Filed: September 15, 1986
    Date of Patent: July 26, 1988
    Assignee: Board of Control of Michigan Technological University
    Inventor: Peter E. Laks
  • Patent number: 4665097
    Abstract: Novel bicyclooxyaryl thioureas are provided together with methods for their preparation and use as the active toxicant in pesticidal compositions.
    Type: Grant
    Filed: March 31, 1983
    Date of Patent: May 12, 1987
    Assignee: Union Carbide Corporation
    Inventor: Paul A. Cain
  • Patent number: 4665202
    Abstract: The invention relates to pharmaceutical preparations containing compounds of formula I ##STR1## in which X.sub.1 and X.sub.2, independently of each other, represent hydrogen, halogen, unsubstituted or substituted amino or a quaternary ammonium salt; etherified or esterified hydroxy; free, etherified, esterified or oxidized mercapto; nitro; functionally modified formyl; free or functionally modified carboxyl; acyl; an unsubstituted or substituted hydrocarbon radical, or an unsubstituted or substituted heterocyclic radical; with the proviso that at least one of the radicals X.sub.1 and X.sub.2 is bonded by a carbon atom to the ring system and with the proviso that X.sub.1 and X.sub.2 cannot be together halogen and formyl; in which Y represents oxygen, sulfur, sulfinyl or sulfonyl but must be sulfur, sulfinyl or sulfonyl, if X.sub.1 is hydrogen and X.sub.
    Type: Grant
    Filed: August 24, 1984
    Date of Patent: May 12, 1987
    Assignee: Zyma SA
    Inventors: Christian G. Rimbault, Philippe M. Narbel
  • Patent number: 4636575
    Abstract: Compounds of formula II and X ##STR1## wherein X is O, S, SO.sub.2, methylene, isopropylidene or NCOR.sub.7 where R.sub.7 is alkyl or phenyl, Y is a direct bond or methylene, n is 1 or 2, R.sub.4 is alkyl, phenyl, naphthyl, cycloalkyl, aralkyl, camphoryl, CF.sub.3, CCl.sub.3, F or NH.sub.2 ; or is alkylene, phenylene or naphthylene, R.sub.5 is hydrogen or halogen, R.sub.6 is hydrogen, alkyl, phenyl or cyano, R.sub.8 is substituted phenyl, substituted naphthyl, anthryl or phenanthryl, R.sub.9 is alkyl R.sub.10 is alkyl or substituted phenyl, and R.sub.11 is alkyl, substituted phenyl, naphthyl, camphoryl, alkylene, phenylene or naphthylene, are latent curing catalysts for acid-curable stoving lacquers. They are distinguished by satisfactory solubility in the acid-curable resin systems, can be stored virtually indefinitely in the dark and, when exposed to shortwave light, make it possible to cure the resins by acid catalysts at a relatively low temperature.
    Type: Grant
    Filed: December 17, 1984
    Date of Patent: January 13, 1987
    Assignee: Ciba-Geigy Corporation
    Inventor: Rudolf Kirchmayr
  • Patent number: 4609744
    Abstract: Compounds of the Formula I: ##STR1## and pharmaceutically acceptable salts thereof are leukotriene antagonists. These compounds inhibit SRS-A and leukotriene synthesis and are antagonists of SRS-A and are thus useful in the treatment of asthma, allergic disorders, inflammation, skin diseases and certain cardiovascular disorders.
    Type: Grant
    Filed: March 19, 1984
    Date of Patent: September 2, 1986
    Assignee: Merck Frosst Canada Inc.
    Inventors: Robert N. Young, Joshua Rokach, Haydn R. Williams, Masatoshi Kakushima, Yvan Guindon
  • Patent number: 4587342
    Abstract: Novel 2,4-diaminopyrimidines having substituted heterobicyclomethyl moieties in the 5-position have superior antibacterial properties.
    Type: Grant
    Filed: October 31, 1983
    Date of Patent: May 6, 1986
    Inventors: Susan M. Daluge, Paul M. Skonezny
  • Patent number: 4477646
    Abstract: Novel piperazinoethyl ureas are prepared by reacting an aminoethyl piperazine with urea and recovering the monosubstituted urea product. These products are useful as curing agents for epoxy resins.
    Type: Grant
    Filed: August 24, 1983
    Date of Patent: October 16, 1984
    Assignee: The Dow Chemical Company
    Inventor: Jimmy Myers
  • Patent number: 4394382
    Abstract: A benzopyran compound represented by the following ##STR1## wherein A represents a direct bond or the bond --CH.sub.2 --O--,R.sub.1 represents a member selected from the group consisting of a C.sub.3 -C.sub.5 alkyl group, a hydroxy-(C.sub.3 -C.sub.5 alkyl) group, a lower alkylamino-lower alkyl group, a nitrato-(C.sub.3 -C.sub.5 alkyl) group and a phenyl-(C.sub.1 -C.sub.5) alkyl group, provided that the phenyl may be substituted by a lower alkoxy group, R.sub.2 represents a member selected from the group consisting of hydrogen, halogen, OH, NO.sub.2, a carbamoyl group, a lower alkyl group, a lower alkoxy group, a lower alkyleneoxy group and acetyl group,R.sub.3 represents hydrogen or NO.sub.2,B represents a direct bond, a C.sub.1 -C.sub.7 alkylene group, a --O-lower alkylene group or a --CONH-lower alkylene group, andn represents 1 or 2;and an acid addition salt thereof and a pharmaceutical composition comprising aforesaid compound.
    Type: Grant
    Filed: June 9, 1981
    Date of Patent: July 19, 1983
    Assignee: Kowa Company, Ltd.
    Inventors: Masami Shiratsuchi, Noboru Shimizu, Hiromichi Shigyo, Yoshinori Kyotani, Hisashi Kunieda, Kiyoshi Kawamura, Seiichi Sato, Toshihiro Akashi, Masahiko Nagakura, Naotoshi Sawada, Yasumi Uchida
  • Patent number: 4352792
    Abstract: Antiviral compositions containing 3-alkoxyflavone compounds as their active ingredients are disclosed.
    Type: Grant
    Filed: April 7, 1980
    Date of Patent: October 5, 1982
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Hideo Ishitsuka, Haruyoshi Shirai, Isao Umeda, Yasuji Suhara