Patents Examined by Hong Liu
  • Patent number: 6159966
    Abstract: A compound of formula (I) ##STR1## its tautomeric forms, its stereoisomers, its polymorphs, its pharmaceutically acceptable salts or its pharmaceutically acceptable solvates, wherein R.sup.3, R.sup.4, R.sup.5, and R.sup.6 are the same or different; R.sup.1 and R.sup.2 together represent along with carbon atoms to which they are attached an aromatic cyclic structure containing 5-6 ring atoms which may optionally be substituted; X represents a heteroatom selected from oxygen or sulfur; R.sup.7 represents hydrogen atom, hydroxy, alkoxy, halogen, lower alkyl group or optionally substituted aralkyl group or forms a bond together with R.sup.8 ; R.sup.8 represents hydrogen atom, hydroxy, alkoxy, halogen, lower alkyl group or optionally substituted aralkyl or R.sup.8 forms a bond together with R.sup.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: December 12, 2000
    Assignees: Reddy-Cheminor Inc., Dr. Reddy's Research Foundation
    Inventors: Braj Bhushan Lohray, Vidya Bhushan Lohray, Ashok Chennaveerappa Bajji, Shivaramayya Kalchar, Sekar Reddy Alla, Rajagopalan Ramanujam, Reeba Kannimel Vikramadithyan
  • Patent number: 6156757
    Abstract: The present invention concerns the compounds of formula ##STR1## the N-oxides, the pharmaceutically acceptable addition salts and the stereochemically isomeric forms thereof, wherein each R.sup.1 is independently hydrogen, halogen, C.sub.1-6 alkyl, nitro, hydroxy or C.sub.1-4 alkyloxy; Alk is C.sub.1-6 alkanediyl; n is 1 or 2; D is an optionally substituted mono-, bi- or tricyclic nitrogen containing heterocycle having central .alpha..sub.2 -adrenoceptor antagonist activity. It further relates to their preparation, compositions comprising them and their use as a medicine.
    Type: Grant
    Filed: October 4, 1999
    Date of Patent: December 5, 2000
    Assignee: Janssen Pharmaceutica N.V.
    Inventors: Ludo Edmond Josephine Kennis, Christopher John Love, Paul Fran.cedilla.ois Bischoff
  • Patent number: 6156930
    Abstract: The present invention provides a method for producing trifluoromethanesulfonyl chloride. This method includes the step of reacting trifluoromethanesulfonic acid with phosphorous trichloride and chlorine. With this method, trifluoromethanesulfonyl chloride can be easily and highly selectively produced at high yield. The reaction may be carried out at about atmospheric pressure. Furthermore, the reaction may be carried out in the presence of phosphorus oxychloride either under a pressurized condition or at about atmospheric pressure.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: December 5, 2000
    Assignee: Central Glass Company, Limited
    Inventors: Kaoru Mori, Takanori Hamana, Shigenori Sakai, Tadayuki Kawashima
  • Patent number: 6150360
    Abstract: This invention concerns the use of the compounds of formula ##STR1## the N-oxides, the pharmaceutically acceptable addition salts and the stereochemically isomeric forms thereof, wherein A is CH, CR.sup.4 or N; n is 0, 1, 2, 3 or 4; R.sup.1 and R.sup.2 are each independently selected from hydrogen, hydroxy, C.sub.1-12 alkyl, C.sub.1-12 alkyloxy, C.sub.1-12 alkylcarbonyl, C.sub.1-12 -alkyloxycarbonyl, aryl, amino, mono- or di(C.sub.1-12 alkyl)amino, mono- or di(C.sub.1-12 alkyl)aminocarbonyl wherein each of the aforementioned C.sub.1-12 alkyl groups may optionally and each individually be substituted; or R.sup.1 and R.sup.2 taken together may form pyrrolidinyl, piperidinyl, morpholinyl, azido or mono- or di(C.sub.1-12 alkyl)aminoC.sub.1-4 alkylidene; R.sup.3 is hydrogen, aryl, C.sub.1-6 alkylcarbonyl, optionally substituted C.sub.1-6 alkyl; and each R.sup.4 independently is hydroxy, halo, C.sub.1-6 alkyl, C.sub.1-6 -alkyloxy, cyano, aminocarbonyl, nitro, amino, trihalomethyl or trihalomethyloxy; L is --X--R.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: November 21, 2000
    Assignee: Janssen Pharmaceutica N.V.
    Inventors: Frederik Frans Desire Daeyaert, Bart De Corte, Marc Rene De Jonge, Jan Heeres, Chih Yung Ho, Paul Adriaan Jan Janssen, Robert W. Kavash, Lucien Maria Henricus Koymans, Michael Joseph Kukla, Donald William Ludovici
  • Patent number: 6150352
    Abstract: There are disclosed compounds of formula (I) ##STR1## and pharmaceutically acceptable salts thereof which are useful as antagonists of GnRH and as such may be useful for the treatment of a variety of sex-hormone related conditions in both men and women.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: November 21, 2000
    Assignee: Merck & Co., Inc.
    Inventors: Mark Goulet, Eric E Allen, Matthew J. Wyvratt, Jr., Jinlong Jiang, Richard B. Toupence, Thomas F Walsh, Feroze Ujjainwalla, Jonathan R Young, Robert J. Devita
  • Patent number: 6143743
    Abstract: Corticotropin releasing factor (CRF) antagonists of formula (I): ##STR1## and their use in treating psychiatric disorders and neurological diseases, anxiety-related disorders, post-traumatic stress disorder, supranuclear palsy and feeding disorders as well as treatment of immunological, cardiovascular or heart-related diseases and colonic hypersensitivity associated with psychopathological disturbance and stress in mammals.
    Type: Grant
    Filed: July 2, 1998
    Date of Patent: November 7, 2000
    Assignee: Dupont Pharmaceuticals Company
    Inventors: Richard Gerald Wilde, Rajagopal Bakthavatchalam, James Peter Beck, Argyrios Georgious Arvanitis
  • Patent number: 6133255
    Abstract: Tricyclic pyridin-2-one analogues which are ligands for GABA.sub.
    Type: Grant
    Filed: September 27, 1999
    Date of Patent: October 17, 2000
    Assignee: Merck Sharp & Dohme Limited
    Inventors: Timothy Harrison, Richard Thomas Lewis, Christopher Richard Moyes, Alan Nadin, Andrew Pate Owens
  • Patent number: 6127365
    Abstract: The present invention is directed to compounds of the formula (I): ##STR1## (wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.9a, R.sup.9b, m and n are as defined herein) which are tachykinin antagonists and which are particularly useful in the treatment of pain, inflammation, migraine, emesis and postherpetic neuralgia.
    Type: Grant
    Filed: August 13, 1998
    Date of Patent: October 3, 2000
    Assignee: Merck Sharp & Dohme Ltd.
    Inventors: Jason Matthew Elliott, Fintan Kelleher, Christopher John Swain
  • Patent number: 6127374
    Abstract: This invention provides irreversible inhibitors of tyrosine kinases having for formula ##STR1## which compounds are useful for treating cancer, restenosis, atherosclerosis, endometriosis and psoriasis.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: October 3, 2000
    Assignee: Warner-Lambert Company
    Inventor: Alexander James Bridges
  • Patent number: 6124283
    Abstract: New piperidinyl- or piperazinyl-substituted-1,2,3,4-tetrahydronaphthalene derivatives having the formula ##STR1## wherein X is N or CH;Y is NR.sub.2 CH.sub.2, CH.sub.2 --NR.sub.2, NR.sub.2 --CO, CO--NR.sub.2 or NR.sub.2 SO.sub.2 ;R.sub.1 is H, C.sub.1 -C.sub.6 alkyl or C.sub.3 -C.sub.6 cycloalkyl;R.sub.3 is C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.6 cycloalkyl or (CH.sub.2).sub.n -aryl,where aryl is phenyl or a heteroaromatic ring containing one or two heteroatoms selected from N, O and S and which may be mono- or di-substituted;n is 0-4;as (R)-enantiomer, (S)-enantiomer or a racemate in the form of the free base or a pharmaceutically acceptable salt or hydrate thereof; a pharmaceutical formulation containing the compounds, use of the compounds in the treatment of 5-hydroxytryptamine mediated disorders, processes for the preparation of the compounds and intermediates for the preparation of the compounds.
    Type: Grant
    Filed: April 25, 1997
    Date of Patent: September 26, 2000
    Assignee: Astra Aktiebolag
    Inventors: Stefan Berg, Lennart Florvall, Svante Ross, Seth-Olov Thorberg
  • Patent number: 6117869
    Abstract: The present invention relates to compounds of Formula I that inhibit matrix metalloproteinases and to a method of inhibiting matrix metalloproteinases using the compounds ##STR1## More particularly, the present invention relates to a method of treating diseases in which matrix metalloproteinases are involved such as multiple sclerosis, atherosclerotic plaque rupture, restenosis, aortic aneurysm, heart failure, periodontal disease, corneal ulceration, burns, decubital ulcers, chronic ulcers or wounds, cancer metastasis, tumor angiogenesis, osteoporosis, rheumatoid or osteoarthritis, renal disease, left ventricular dilatation, or other autoimmune or inflammatory diseases dependent upon tissue invasion by leukocytes.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: September 12, 2000
    Assignee: Warner-Lambert Company
    Inventors: Joseph Armand Picard, Bruce David Roth, Drago Robert Sliskovic
  • Patent number: 6110915
    Abstract: A class of substituted 7,8-ring fused 1,2,4-triazolo[4,3-b]pyridazine derivatives, as shown in Formula I, possessing an optionally substituted cycloalkyl, phenyl or heteroaryl substituent at the 3-position and a substituted alkoxy moiety at the 6-position, are selective ligands for GABA.sub.A receptors, in particular having high affinity for the .alpha.2 and/or .alpha.3 subunit thereof, and are accordingly of benefit in the treatment and/or prevention of emesis.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: August 29, 2000
    Assignee: Merck & Co., Inc.
    Inventors: Jose Luis Castro Pineiro, Frederick David Tattersall
  • Patent number: 6107294
    Abstract: The present invention describes novel thiazolo[4,5-d]pyrimidines of formula: ##STR1## wherein R.sup.3 is a substituted aromatic or heteroaromatic group, or pharmaceutically acceptable salt forms thereof, which are useful as CRF antagonists.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: August 22, 2000
    Assignee: Dupont Pharmaceuticals
    Inventor: James Peter Beck
  • Patent number: 6080738
    Abstract: A heterocyclic amide compound of the formula (I) ##STR1## wherein each symbol is as defined in the specification, a pharmacologically acceptable salt thereof, a pharmaceutical composition thereof and a pharmaceutical use thereof. The heterocyclic amide compound and a pharmacologically acceptable salt thereof of the present invention have superior inhibitory action on chymase group in mammals inclusive of human, and can be administered orally or parenterally. Therefore, they are useful as chymase inhibitors and can be used for the prophylaxis and treatment of various diseases caused by chymase, such as those caused by angiotensin II.
    Type: Grant
    Filed: April 22, 1999
    Date of Patent: June 27, 2000
    Assignee: Yoshitomi Pharmaceuticals Industries, Ltd.
    Inventors: Fumihiko Akahoshi, Atsuyuki Ashimori, Takuya Yoshimura, Masahiro Eda, Hiroshi Sakashita, Masahide Nakajima, Teruaki Imada
  • Patent number: 6075019
    Abstract: The invention relates to novel S-aryl-dithiazine dioxides, to processes for their preparation and to the use in crop protection and in the protection of materials.
    Type: Grant
    Filed: June 23, 1999
    Date of Patent: June 13, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hermann Uhr, Martin Kugler, Peter Wachtler
  • Patent number: 6071909
    Abstract: The present patent application discloses compounds having formula (I) ##STR1## or a pharmaceutically acceptable salt thereof or an oxide thereof, wherein R.sup.3 is (II), ##STR2## wherein A, B and D each is CH, or one or two of A, B and D is N and the others are CH; R.sub.11 is phenyl, benzimidazolyl, or monocyclic heteroaryl all of which may be substituted one or more times with substituents selected from alkyl, alkoxy, phenyl, halogen, CF.sub.3, amino, nitro, cyano, acyl, acylamino, phenyl and monocyclic heteroaryl; and one of R.sup.6 and R.sup.7 is hydrogen and the other is furanyl or isoxazolyl each of which may be substituted one or more times with substituents selected from halogen, alkyl, alkoxy and phenyl. The compounds are useful for the treatment of various central nervous system disorders such as epilepsy and other convulsive disorders, anxiety, sleep disorders and memory disorders.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: June 6, 2000
    Assignee: Merck Sharpe & Dohme Ltd.
    Inventors: Timothy Harrison, Timothy Jason Sparey, Martin Richard Teall
  • Patent number: 6063784
    Abstract: A compound selected from the group consisting of a compound of the formula ##STR1## wherein the substituents are defined as in the application and its non-toxic, pharmaceutically acceptable acid addition salts which are useful for treating hypertension.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: May 16, 2000
    Assignee: Societe de Conseils de Recherches et D'Applications Scientifiques (S.C.R.A.S. )
    Inventors: Dennis Bigg, Marie-Odile Galcera
  • Patent number: 6057326
    Abstract: Novel and known bicyclic 4-aralkylaminopyrimidine derivatives of formula (I) wherein A is a benzene or imidazole ring; B is a benzene, tetralin, indane or 2-oxindole ring R is (C.sub.1 -C.sub.4)perfluoroalkyl, phenyl, phenyl-(C.sub.1 -C.sub.4)alkyl, hydroxy-(C.sub.1 -C.sub.4)alkyl, (C.sub.1 -C.sub.4)alkoxy-(C.sub.1 -C.sub.4)alkyl, (C.sub.2 -C.sub.4)acyloxy-(C.sub.1 -C.sub.4)alkyl, halobenzoyloxy-(C.sub.1 -C.sub.4)alkyl, carboxy, carbamoyl, (C.sub.1 -C.sub.4)alkoxycarbonyl, cyano, (C.sub.1 -C.sub.4)alkylcarbonyl, carboxy-(C.sub.1 -C.sub.4)alkyl, carbamoyl-(C.sub.1 -C.sub.4)alkyl, (C.sub.1 -C.sub.4)alkoxycarbonyl-(C.sub.1 -C.sub.4)alkyl, halo-(C.sub.1 -C.sub.4)alkyl, amino-(C.sub.1 -C.sub.4)alkyl, mono- or di-(C.sub.1 -C.sub.4)alkylamino-(C.sub.1 -C.sub.4)alkyl, sulfo-(C.sub.1 -C.sub.4)alkyl or sulfamido-(C.sub.1 -C.sub.4)alkyl; each of R.sub.1 and R.sub.2, which may be the same or different, is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen or --NR.sub.5 R.sub.6 in which each of R.sub.
    Type: Grant
    Filed: February 6, 1998
    Date of Patent: May 2, 2000
    Assignee: Pharmacia & Upjohn S.p.A
    Inventors: Maria Gabriella Brasca, Dario Ballinari, Antonio Longo, Franco Buzzetti
  • Patent number: 6046135
    Abstract: 1,3-Oxazin-4-one derivatives of formula (I): ##STR1## wherein Q represents --C(.dbd.O)--, --CH(OH)-- or --C(OR.sup.11)(OR.sup.11)--, in which R.sup.11 represents lower alkyl; or the two groups --OR.sup.11, together with the carbon atom to which they are attached, form a five or six membered cyclic ketal group; and their use as herbicides.
    Type: Grant
    Filed: September 2, 1998
    Date of Patent: April 4, 2000
    Assignees: Rhone-Poulenc Agriculture Ltd, Mitsubishi Chemical Corporation
    Inventors: Michael Colin Cramp, Yoshihiro Usui, Sachio Kudo