Patents Examined by Matthew V. Grumbling
  • Patent number: 5494908
    Abstract: This application relates to compounds of the formula ##STR1## wherein R.sup.1, X, Y and n are as defined in the specification; and pharmaceutically acceptable addition salts thereof and optical and geometric isomers or racemic mixtures thereof; which compounds are useful for the treatment of various memory dysfunctions characterized by a decreased cholinergic function such as Alzheimer's disease. Compounds of this invention also inhibit monoamine oxidase and hence are useful as antidepressants.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: February 27, 1996
    Assignee: Hoechst-Roussel Pharmaceutical Incorporated
    Inventors: Gerard J. O'Malley, Mark G. Palermo
  • Patent number: 5491144
    Abstract: Compounds of formula I ##STR1## wherein Ar.sub.1, Ar.sub.2, A.sub.1, A.sub.2, R and X are as defined in the description, exhibit valuable pharmaceutical properties and are effective especially against diseases responsive to the inhibition of protein kinases, for example tumors. They are prepared in a manner known per se.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: February 13, 1996
    Assignee: Ciba-Geigy Corporation
    Inventors: Uwe Trinks, Peter Traxler
  • Patent number: 5486515
    Abstract: Compounds of formula I ##STR1## wherein X.sup.a, X.sup.b, R, R.sup.1 and R.sup.2 have any of the meanings given in the specification, and their pharmaceutically acceptable salts are useful as potassium channel openers for the treatment of urinary incontinence. Also disclosed are pharmaceutical compositions, processes for preparing the compounds of formula I and intermediates.
    Type: Grant
    Filed: May 9, 1994
    Date of Patent: January 23, 1996
    Assignee: Zeneca Limited
    Inventors: Frederick J. Brown, Keith Russell, Paul J. Warwick, Jr.
  • Patent number: 5482934
    Abstract: The present invention relates to compounds of the formula: ##STR1## in which X.sub.1 and X.sub.2 correspond to H or F without distinction; R.sub.1 represents the following radicals: ##STR2## and R.sub.2 represents the radicals ##STR3## in the form of an R epimer, an S epimer, or a stereoisomeric mixture of the R and S epimers in terms of the orientation of the substituents on the carbon atom at position 22, novel intermediates and a method of their preparation by hydrolysis-ketalization, and use of such compounds as drugs and/or therapeutic agents.
    Type: Grant
    Filed: July 20, 1994
    Date of Patent: January 9, 1996
    Assignee: Especialidades Latinas Medicamentos Universales, S.A. (Elmu, S.A.)
    Inventors: Jose Calatayud, Jose R. Conde, Manuel Luna
  • Patent number: 5482941
    Abstract: Compounds of formula: ##STR1## and pharmaceutically acceptable salts thereof whereinR.sup.1 is H, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or CONR.sup.5 R.sup.6 ;R.sup.2 is H or- C.sub.1 -C.sub.4 alkyl;R.sup.3 is C.sub.2 -C.sub.4 alkyl;R.sup.4 is H, C.sub.2 -C.sub.4 alkanoyl optionally substituted with NR.sup.7 R.sup.8, (hydroxy)C.sub.2 -C.sub.4 alkyl optionally substituted with NR.sup.7 R.sup.8, CH.dbd.CHCO.sub.2 R.sup.9, CH.dbd.CHCONR.sup.7 R.sup.8, CH.sub.2 CH.sub.2 CO.sub.2 R.sup.9, CH.sub.2 CH.sub.2 CONR.sup.7 R.sup.8, SO.sub.2 NR.sup.7 R.sup.8, SO.sub.2 NH(CH.sub.2).sub.n NR.sup.7 R.sup.8 or imidazolyl;R.sup.5 and R.sup.6 are each independently H or C.sub.1 -C.sub.4 alkyl;R.sup.7 and R.sup.8 are each independently H or C.sub.1 -C.sub.4 alkyl, or together with the nitrogen atom to which they are attached form a pyrrolidino, piperidino, morpholino or 4-(NR.sup.10)-1-piperazinyl group wherein any of said groups is optionally substituted with CONR.sup.5 R.sup.6 ;R.sup.9 is H or C.sub.1 -C.sub.
    Type: Grant
    Filed: May 6, 1994
    Date of Patent: January 9, 1996
    Assignee: Pfizer Inc.
    Inventor: Nicholas K. Terrett
  • Patent number: 5478832
    Abstract: A quinoline compound represented by the formula (1) or a salt thereof: ##STR1## wherein the definition of each substituents are described in the specification, which have angiotensin II antagonism and hypotensive action and are useful as an agent for the prevention and treatment of cardiovascular system diseases such as hypertension, heart failure and the like.
    Type: Grant
    Filed: May 4, 1993
    Date of Patent: December 26, 1995
    Assignees: The Green Cross Corporation, Asahi Glass Co., Ltd.
    Inventors: Yoshihisa Inoue, Hajime Ebisu, Naomichi Ishida, Norifumi Nakamura, Jun Sasaki, Takashi Okazoe, Yoshitomi Morizawa, Arata Yasuda
  • Patent number: 5476851
    Abstract: This invention relates to pyrazolo[3,4-g]quinoxaline compounds exhibiting protein tyrosine kinase inhibition activity of the formula: ##STR1## where: ------ may be a double bond;R, R.sub.2, R.sub.3 and R.sub.4 are as described in claim 1;a pharmaceutically acceptable salt thereof.More specifically, compounds of this invention are novel as selective inhibitors of the PDGF-R protein tyrosine kinase and can be applied as potential therapeutic agents for various disease states which are characterized by uncontrolled cellular proliferation. Further, the present invention provides pharmaceutical compositions and a method for treating such disorders comprising the administration to a patient of a PDGF receptor inhibiting effective amount of a pyrazolo[3,4-g]quinoxaline compound exhibiting protein tyrosine kinase inhibition activity. Processes for the preparation of pyrazolo[3,4-g]quinoxaline compounds are also described.
    Type: Grant
    Filed: September 8, 1994
    Date of Patent: December 19, 1995
    Assignee: Rhone-Poulenc Rorer Pharmaceuticals, Inc.
    Inventors: Michael R. Myers, Paul E. Persons, Cuong Q. Ly, Alfred P. Spada
  • Patent number: 5475001
    Abstract: The invention concerns quinazoline derivatives of the formula I ##STR1## wherein R.sup.1 includes hydroxy, amino, hydroxyamino, (1-4C)alkoxy, (1-4C)alkylamino and di-[(1-4C)alkyl]amino;R.sup.3 is halogeno;n is 1, 2 or 3 and R.sup.2 includes hydrogen, hydroxy, halogeno and (1-4C)alkyl;or a pharmaceutically-acceptable salt thereof;processes for their preparation; pharmaceutical compositions containing them; and the use of the receptor tyrosine kinase inhibitory properties of the compounds in the treatment of cancer.
    Type: Grant
    Filed: July 19, 1994
    Date of Patent: December 12, 1995
    Assignee: Zeneca Limited
    Inventor: Andrew J. Barker
  • Patent number: 5474994
    Abstract: This invention provides bicyclic heterocyclic derivatives and their pharmaceutically acceptable salts useful for the treatment of hypertension, urethral and lower urinary tract contractions, and other disorders. The compounds are also useful for binding .alpha..sub.1 -adrenergic and 5HT.sub.1A serotonergic receptors, in vitro or in vivo.
    Type: Grant
    Filed: May 26, 1993
    Date of Patent: December 12, 1995
    Assignee: Recordati S.A., Chemical and Pharmaceutical Company
    Inventors: Amedeo Leonardi, Gianni Motta, Carlo Riva, Rodolfo Testa
  • Patent number: 5473072
    Abstract: Process for the preparation of 8 -[4 -[4-(pyrimidine-2-yl)-piperazine-1-yl]-butyl]-8-aza-spiro[4.5]decane-7,9-d ione (buspiron) of the Formula I ##STR1## and the hydrochlorides thereof having high purity by continuously adding a solution of 8-[4-[4-(pyrimidine-2-yl)-piperazine-1-yl]-but-2 -inyl]-8-aza-spiro[4.5]decane-7,9-dione of the formula II ##STR2## formed with an inert organic solvent having a concentration of at least 40% by weight to a suspension of a hydrogenation catalyst in an inert organic solvent and optionally converting the 8-[4-[4-(pyrimidine-2-yl)-piperazine-1-yl]-butyl]-8-aza-spiro[4.5]decane-7 ,9-dione thus obtained into the hydrochloride thereof.
    Type: Grant
    Filed: July 14, 1994
    Date of Patent: December 5, 1995
    Assignee: Egis Gyogyszergyar Rt.
    Inventors: Tibor Mezei, Gabor Blasko, Zoltan Budai, Margit Csorgo, Eva Furdyga, Imre Klebovich, Laszlo Koncz, Ilona Sztruhar, Attila Mandi, Kalman Nagy, Klara Reiter nee Esses, Gyula Simig, Judit Szego, Gyongyi Vereczkey nee Donath
  • Patent number: 5473067
    Abstract: A process for synthesizing carbonic anhydrase inhibitors is disclosed.
    Type: Grant
    Filed: January 14, 1994
    Date of Patent: December 5, 1995
    Assignee: Alcon Laboratories, Inc.
    Inventors: William D. Dean, Paul W. Zinke, Steven J. Sproull, Michael E. Deason, Raymond E. Conrow, Anura P. Dantanarayana
  • Patent number: 5470853
    Abstract: The present invention provides 4-amino-6-substituted-hexahydrobenz[cd]indoles which are useful in treating disease states which can be benefited by an alteration of 5-HT.sub.1.sbsb.A receptors.
    Type: Grant
    Filed: March 30, 1994
    Date of Patent: November 28, 1995
    Assignee: Eli Lilly and Company
    Inventors: Michael E. Flaugh, Michael J. Martinelli
  • Patent number: 5470857
    Abstract: This invention relates to a method of effecting immunosuppression in a patient in need thereof comprising administering an effective amount of a compound of the formula (1) ##STR1## wherein the hydroxy substituent on the cyclopentenyl ring is in the CIS configuration relative to the bicyclic substituent,Y.sub.3, Y.sub.7, Y.sub.8 and Y.sub.9 are each independently nitrogen or a CH group,Q is NH.sub.2, halogen or hydrogen, andZ is hydrogen, halogen, or NH.sub.2 ;or a pharmaceutically-acceptable salt thereof.
    Type: Grant
    Filed: November 8, 1994
    Date of Patent: November 28, 1995
    Assignee: Marion Merrell Dow Inc.
    Inventors: David R. Borcherding, Carl K. Edwards, III, Ronald E. Esser, Douglas L. Cole
  • Patent number: 5466687
    Abstract: The invention relates to arylidene-1-azacycloalkanes and arylalkyl-1-azacycloalkanes of the general formula ##STR1## (wherein n, m, p, A, W.sup.1, W.sup.2, X, Y, and R.sup.1 to R.sup.11 are as defined in claim 1) and the isomers, isomer mixtures and salts thereof, which have useful properties, in particular an inhibitory effect on cholesterol biosynthesis.
    Type: Grant
    Filed: March 25, 1994
    Date of Patent: November 14, 1995
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Roland Maier, Peter Muller, Eberhard Woitun, Rudolf Hurnaus, Michael Mark, Bernhard Eisele, Ralph-Michael Budzinski, Gerhard Hallermayer
  • Patent number: 5463047
    Abstract: The invention relates to the 3-(1'-hydroxyethyl)-2-azetidinone of formula ##STR1## which can be transformed into 4-acyloxy-3-(1-hydroxyethyl)-2-azetidinone derivatives. The latter can be used as starting materials for the manufacture of a large number of highly active .beta.-lactam antibiotics.
    Type: Grant
    Filed: September 15, 1994
    Date of Patent: October 31, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Peter Schneider, Gerardo Ramos, Jacques Bersier
  • Patent number: 5462913
    Abstract: The invention relates to new 1-H-3-aryl-pyrrolidine-2,4-dione derivatives of the formula (I) ##STR1## in which A and B together with the carbon atom to which they are bonded represent a substituted cycle,X represents alkyl, halogen or alkoxy,Y represents hydrogen, alkyl, halogen, alkoxy or halogenoalkyl,Z represents alkyl, halogen or alkoxy,n represents 0, 1, 2 or 3,G represents hydrogen (a) or the groups ##STR2## represents a metal ion equivalent or an ammonium ion, L and M represents oxygen and/or sulphur,R.sup.1 represents in each case optionally halogen-substituted alkyl, alkenyl, alkoxyalkyl, alkylthioalkyl, polyalkoxyalkyl or cycloalkyl, which can be interrupted by hetero atoms, optionally substituted phenyl, optionally substituted phenylalkyl, substituted hetaryl, substituted phenoxyalkyl or substituted hetaryloxyalkyl,R.sup.2 represents in each case optionally halogen-substituted alkyl, alkenyl, alkoxyalkyl, polyalkoxyalkyl or in each case optionally substituted phenyl or benzyl,R.sup.3, R.sup.
    Type: Grant
    Filed: October 21, 1993
    Date of Patent: October 31, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Reiner Fischer, Thomas Bretschneider, Bernd-Wieland Kruger, Christoph Erdelen, Hans-Joachim Santel, Klaus Lurssen, Robert R. Schmidt, Ulrike Wachendorff-Neumann, Wilhelm Stendel
  • Patent number: 5459129
    Abstract: A novel compound of the formula: ##STR1## wherein a ring A stands for an optionally substituted 5-membered ring; B stands for an optionally substituted divalent cyclic or chain group; either one of Q.sup.1 and Q.sup.2 stands for N and the other stands for N or CH; X stands for an amino group, hydroxyl group or mercapto group; Y stands for H, halogen atom or a group bonded through C, N, 0 or S; Z stands for a straight-chain divalent group having 2 to 5 atoms constituted of optionally substituted carbon atoms or constituted of optionally substituted carbon atoms and one optionally substituted hetero-atom; COOR.sup.1 and COOR.sup.2 independently stand for an optionally esterified carboxyl group; n denotes an integer of 2 to 6; and R.sup.1 may be different in each of n repeating units, or their salts and it is useful as a therapeutic drug for tumor in mammals.
    Type: Grant
    Filed: August 27, 1993
    Date of Patent: October 17, 1995
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Hiroshi Akimoto, Kazuyoshi Aso, Koichiro Ootsu
  • Patent number: 5457201
    Abstract: A chiral resolution process is described for the purification of a substituted chiral quinazoline, by salt formation with a resolving agent, followed by crystallization.
    Type: Grant
    Filed: January 17, 1995
    Date of Patent: October 10, 1995
    Assignee: Merck & Co., Inc.
    Inventors: Nobuyoshi Yasuda, Ann E. DeCamp, Edward J. J. Grabowski
  • Patent number: 5457105
    Abstract: The invention concerns quinazoline derivatives of the formula I ##STR1## wherein m is 1, 2 or 3 and each R.sup.1 includes hydroxy, amino, carboxy, carbamoyl, ureido, (1-4C)alkoxycarbonyl, N-(1-4C)alkylcarbamoyl, N,N-di-[(1-4C)alkyl]carbamoyl, hydroxyamino, (1-4C)alkoxyamino, (2-4C)alkanoyloxyamino, trifluoromethoxy, (1-4C)alkyl, (1-4C)alkoxy and (1-3C)alkylenedioxy;n is 1 or 2 and each R.sup.2 includes hydrogen, hydroxy, halogeno, trifluoromethyl, amino, nitro, cyano and (1-4C)alkyl;or a pharmaceutically-acceptable salt thereof;processes for their preparation; pharmaceutical compositions containing them; and the use of the receptor tyrosine kinase inhibitory properties of the compounds in the treatment of cancer.
    Type: Grant
    Filed: August 2, 1994
    Date of Patent: October 10, 1995
    Assignee: Zeneca Limited
    Inventor: Andrew J. Barker
  • Patent number: 5457091
    Abstract: N1-Substituted 1H-1,2,3-triazolo[4,5-d]pyrimidine compounds of the formula I ##STR1## in which the substituents X, Y, R.sup.1, R.sup.2 and R.sup.3 have the meanings recited in the specification, are described as pharmaceutical compositions containing them and processes for their preparation. The compounds are effective antiviral agents.
    Type: Grant
    Filed: September 23, 1993
    Date of Patent: October 10, 1995
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gerhard Jaehne, Matthias Helsberg, Irvin Winkler, Gerhard Gross, Thomas Scholl