Patents Examined by D. Margaret M. Mach
  • Patent number: 5605914
    Abstract: Cyclic imides are inhibitors of tumor necrosis factor .alpha. and can be used to combat cachexia, endotoxic shock, and retrovirus replication. A typical embodiment is 2-(2,6-dioxo-3-piperidinyl)-4-azaisoindoline-1,3-dione.
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: February 25, 1997
    Assignee: Celgene Corporation
    Inventor: George W. Muller
  • Patent number: 5606067
    Abstract: A process for the preparation of N-allyl compounds of the general formula I ##STR1## in which ##STR2## denotes a nitrogen-containing heterocyclic compound, R.sup.1, R.sup.3, and R.sup.4 independently denote hydrogen or C.sub.1 -C.sub.4 alkyl,R.sup.2 denotes hydrogen or methyl,n is equal to 1, 2, 3, or 4, andX denotes a water-solubilizing anion,wherein a compound of formula II ##STR3## is caused to react, in aqueous medium, with a compound of formula III ##STR4## in which A denotes a radical which can be eliminated as an anion. The compounds produced by the process of the invention are very well suited for use as brighteners in nickel electroplating.
    Type: Grant
    Filed: October 19, 1994
    Date of Patent: February 25, 1997
    Assignee: BASF Aktiengesellschaft
    Inventors: Bernd Burkhart, Alfred Oftring, Rudi Widder, Ulrich Schroeder
  • Patent number: 5604235
    Abstract: This invention encompasses compounds of formula (I), and pharmaceutically acceptable non-toxic salts thereof wherein X and Y am the same or different and represent oxygen or H.sub.2 with the proviso that not both X and Y are H.sub.2 ; W represents phenyl, thienyl, or pyridyl, each of which may be unsubstituted or mono or disubstituted with organic or inorganic substituents; and R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are variables representing organic and inorganic substituents. These compounds are highly selective agonists, antagonists or inverse agonists for GABAa brain receptors or prodrugs thereof and are useful in the diagnosis and treatment of anxiety, sleep, and seizure disorder overdose with benzodiazepine drugs, and enhancement of memory.
    Type: Grant
    Filed: February 27, 1995
    Date of Patent: February 18, 1997
    Assignee: Neurogen Corporation
    Inventors: Kenneth Shaw, Jun Yuan
  • Patent number: 5604238
    Abstract: This invention concerns compounds having the Z-configuration of formula: ##STR1## or salts thereof, wherein R represents an optionally substituted aryl or heteroaryl radical, R.sup.1, R.sup.2 and R.sup.3 each independently represent hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, (C.sub.1 -C.sub.6 alkoxy)carbonyl, carboxy, hydroxy (C.sub.1 -C.sub.6)alkyl, halogen, halo(C.sub.1 -C.sub.6)alkyl, carboxy(C.sub.1 -C.sub.6)alkyl, optionally substituted aryl or heteroaryl or optionally substituted aralkyl or heteroarylalkyl; n represents 0, 1 or 2; R.sup.4 and R.sup.5 each independently represent hydrogen or a substituent selected from lower alkyl, optionally substituted aryl and optionally substituted aralkyl or R.sup.4 and R.sup.5 are geminal C.sub.1 -C.sub.6 alkyl substituents and R.sup.6 is hydrogen or C.sub.1 -C.sub.6 alkyl which possess antiinflammatory activity.
    Type: Grant
    Filed: April 18, 1995
    Date of Patent: February 18, 1997
    Assignee: John Wyeth & Brothers Limited
    Inventors: Roger Crossley, Albert Opalko
  • Patent number: 5602145
    Abstract: This invention relates to compounds of the formula: ##STR1## which are effective for inhibiting platelet aggregation, pharmaceutical compositions for effecting such activity, and a method for inhibiting platelet aggregation.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: February 11, 1997
    Assignee: Smithkline Beecham Corporation
    Inventor: James Samanen
  • Patent number: 5602256
    Abstract: A process for the preparation of 1-substituted,4-substituted-1H-imidazo-[4,5-c]quinolines, intermediates in the preparation of such compounds, and processes for the preparation of such intermediates.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: February 11, 1997
    Assignee: Riker Laboratories, Inc.
    Inventors: Jean-Denis Andr e, Daniel Lagin
  • Patent number: 5602146
    Abstract: Compounds of the formula I ##STR1## and tautomeric forms thereof, of the formula Ia, ##STR2## in which the substituents R1-R4 and X and Y have the meanings given; have an antiviral activity.
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: February 11, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Uta-Maria Billhardt-Troughton, Manfred R osner, Rudolph Bender, Christoph Meichsner
  • Patent number: 5597834
    Abstract: This invention concerns compounds having the Z-configuration of formula: ##STR1## or salts thereof, wherein R represents an optionally substituted aryl or heteroaryl radical, R.sup.1, R.sup.2 and R.sup.3 each independently represent hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, (C.sub.1 -C.sub.6 alkoxy)carbonyl, carboxy, hydroxy (C.sub.1 -C.sub.6)alkyl, halogen, halo(C.sub.1 -C.sub.6)alkyl, carboxy(C.sub.1 -C.sub.6)alkyl, optionally substituted aryl or heteroaryl or optionally substituted aralkyl or heteroarylalkyl; n represents O, 1 or 2; R.sup.4 and R.sup.5 each independently represent hydrogen or a substituent selected from lower alkyl, optionally substituted aryl and optionally substituted aralkyl or R.sup.4 and R.sup.5 are geminal C.sub.1 -C.sub.6 alkyl substituents and R.sup.6 is hydrogen or C.sub.1 -C.sub.6 alkyl which possess antiinflammatory activity.
    Type: Grant
    Filed: December 1, 1994
    Date of Patent: January 28, 1997
    Assignee: American Home Products Corporation
    Inventors: Roger Crossley, Albert Opalko
  • Patent number: 5597920
    Abstract: The present invention provides methods for screening drug compounds utilizing compounds of formulas I and II, where formulas I and II are ##STR1## and the pharmaceutically acceptable salts thereof where: R.sub.1, R.sub.2, R.sub.3, and R.sub.4 represent hydrogen, halogen, alkyl or alkoxy substituents;R5 is hydrogen or lower alkyl;X and Y represent hydrogen, halogen, alkyl or alkoxy substituents; andZ is hydrogen or fluorine.The invention also provides tritium or iodine isotope radiolabeled compounds of the formulas I and II radiolabeled with tritium or isotopes of iodine.The invention further provides novel GABAa receptor subtypes which specifically bind to compounds of formulas I or II.The invention also provides GABAa receptor subtypes which are bound in situ to a compound of formula I or II.The compounds provided herein bind selectively to a novel subtype of the GABAa binding site.
    Type: Grant
    Filed: April 30, 1992
    Date of Patent: January 28, 1997
    Assignee: Neurogen Corporation
    Inventors: Kenneth Shaw, Alan Hutchison, Andrew Thurkauf, John Tallman
  • Patent number: 5597923
    Abstract: 1-Cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-7-(3-methylaminopiperidin-1-yl )-4-oxoquinoline-3-carboxylic acid dihydrate having the following formula: ##STR1## The crystal of this dihydrate exhibits excellent stability over the other crystal forms under various pharmaceutical formulation conditions such as moisture absorption and blending in solvents and, hence, it is a most advantageous crystal form in the manufacture of pharmaceuticals.
    Type: Grant
    Filed: July 21, 1994
    Date of Patent: January 28, 1997
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Hiroyuki Nagano, Nobuyuki Suzuki
  • Patent number: 5597924
    Abstract: The invention is a process for preparing substituted 8-hydroxyquinolines from substituted 8-chloroquinolines.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: January 28, 1997
    Assignee: American Cyanamid Company
    Inventors: Robert S. Marmor, Henry L. Strong
  • Patent number: 5597833
    Abstract: Substituted quinol-2-yl-methoxy-phenylacetic acid derivatives are prepared by reacting correspondingly substituted phenols with quinolylmethyl halides or by reacting unsubstituted phenols with quinolylmethyl halides and subsequent alkylation. The substituted quinol-2-yl-methoxy-phenylacetic acid derivatives may be employed as active substances in medicaments.
    Type: Grant
    Filed: August 4, 1993
    Date of Patent: January 28, 1997
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Matzke, Klaus-Helmut Mohrs, Siegfried Raddatz, Romanis Fruchtmann, Reiner M uller-Peddinghaus, Armin Hatzelmann
  • Patent number: 5596002
    Abstract: Novel aminoquinoline derivatives of the general formula ##STR1## are described. Also described are methods for the treatment of malaria pathogens, particularly chloroquine-resistance malaria pathogens with compounds of formula I or the pharmaceutically acceptable salts and hydrolyzable esters thereof.
    Type: Grant
    Filed: October 26, 1994
    Date of Patent: January 21, 1997
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Werner Hofheinz, Catherine Jaquet, Syn ese Jolidon
  • Patent number: 5594006
    Abstract: This invention provides a carbostyril derivative of the formula (1): ##STR1## where R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6 and n are as defined, or its salt. This carbostyril derivative or its salt possess an excellent matrix metalloproteinases inhibitory action.
    Type: Grant
    Filed: February 16, 1995
    Date of Patent: January 14, 1997
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Makoto Sakamoto, Takeshi Imaoka, Masaaki Motoyama, Yoshihito Yamamoto, Hideki Takasu
  • Patent number: 5591857
    Abstract: An improved process for the preparation of 2,3,5,6-tetrachloropyridine of the formula ##STR1## consists in that 3,3,5-trichloroglutarimide of the formule ##STR2## is reacted either a. with phosphorus trichloride or phosphorus oxytrichloride or mixtures thereof in the presence from the start of catalytic amounts of hydrogen chloride, followed by a conversion of polyphosphorous compounds formed into phosphorus oxytrichloride by supplying chlorine, optionally only after supplying further phosphorus trichloride, orb. with phosphorus trichloride and chlorine, optionally in the presence of phosphorus oxytrichloride as a solvent, followed by a dehydrochlorination of the reaction mixture and finally conversion of polyphosphorus compounds formed into phosphorus oxytrichloride by supplying chlorine, optionally only after supplying further phosphorus trichloride.Improved yields of a purer product are obtained.
    Type: Grant
    Filed: August 22, 1994
    Date of Patent: January 7, 1997
    Assignee: Cheminova Agro A/S
    Inventors: Niels Friis, Per Fr.o slashed.lich
  • Patent number: 5591751
    Abstract: Peripheral vasodilating agents containing, as the active ingredient, carbostyril derivatives represented by the general formula: ##STR1## or a salt thereof; and novel carbostyril derivatives included within the scope of the above-mentioned general formula.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: January 7, 1997
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Takafumi Fujioka, Shuji Teramoto, Michinori Tanaka, Hiroshi Shimizu, Fujio Tabusa, Michiaki Tominaga
  • Patent number: 5587389
    Abstract: Substituted heteroarylalkylthiopyridines of the formula (I) ##STR1## are suitable for treating conditions caused by Helicobacter bacteria, in particular the strain Helicobacter pylori.
    Type: Grant
    Filed: August 15, 1995
    Date of Patent: December 24, 1996
    Assignee: BYK Gulden Lomberg Chemische Fabrik GmbH
    Inventors: Bernhard Kohl, J org Senn-Bilfinger, Gerhard Grundler
  • Patent number: 5587385
    Abstract: The invention relates to compounds of formula ##STR1## wherein Ar is mono- or bicyclic ring system chosen from benzene, naphthalene, tetrahydronaphthalene, quinoline and indole;Het is ##STR2## R is hydrogen, halogen, hydroxy, C.sub.1 -C.sub.6 alkoxy, C.sub.2 -C.sub.6 acyloxy, cyano, nitro, amino or --COOR.sub.3 in which R.sub.3 is hydrogen or C.sub.1 -C.sub.6 alkyl;R.sub.1 is hydrogen, hydroxy, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 alkoxy, C.sub.2 -C.sub.6 acyloxy, cyano, nitro, amino or --COOR.sub.3 in which R.sub.3 is as defined above;R.sub.2 is hydrogen, halogen, hydroxy or C.sub.1 -C.sub.6 alkyl; and the pharmaceutically acceptable salts thereof, and wherein when at the same time the (Ar) R.sub.1 R.sub.2 group represents unsubstituted phenyl or 4-chloro-, 4-cyano-, 4-amino- or 3,4-dimethoxy-phenyl and Het is a 4-homophthalimide group, then R is other than hydrogen, which are useful as anti-proliferative agents.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: December 24, 1996
    Assignee: Farmitalia Carlo Erba S.r.L.
    Inventors: Franco Buzzetti, Silvia Fustinoni, Maria G. Brasca, Sergio Penco
  • Patent number: 5576438
    Abstract: The present invention relates to hitherto unknown compounds of formula; Y stands for --CH.dbd.CH--; R.sub.1 is hydrogen or halogen, preferably fluorine, chlorine or bromine; R.sub.2 is halogen, preferably fluorine, chlorine or bromine, CH.sub.3, OCH.sub.3, NO.sub.2 or CF.sub.3, and n=0-3, preferably 0, 1 or 2; A stands for an acidic group, e.g. carboxy, 1-H-tetrazolyl or a hydroxamic acid group. The present compounds are of value in the human and veterinary practice as lipoxygenase inhibitors and/or leukotriene antagonists.
    Type: Grant
    Filed: January 13, 1995
    Date of Patent: November 19, 1996
    Assignee: Leo Pharmaceutical Products Ltd. A/S (L.o slashed.vens Kemiske Fabrik Produktionsaktiesel Skab)
    Inventors: Dorte Kirstein, Schneur Rachlin
  • Patent number: 5576435
    Abstract: The present invention provides novel intermediates which are useful for the preparation of excitatory amino acid receptor antagonists. Further provided is a process to enatioselectively prepare hydroisoquinoline compounds with central nervous system activity.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: November 19, 1996
    Assignee: Eli Lilly and Company
    Inventors: Anita Melikian-Badalian, Paul L. Ornstein