Ring Chalcogen In The Tricyclo Ring System Patents (Class 548/430)
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Patent number: 5177210Abstract: 2,7-Diazabicyclo[3.3.0]octanes, suitable for 7-position substituents or antibacterially active quinolone carboxylic acids, of the formula ##STR1## in which R.sup.1, R.sup.3, R.sup.4, R.sup.5, R.sup.7 and R.sup.8 may be identical or different and in each case denote H, C.sub.1 -C.sub.5 -alkyl (optionally substituted by halogen, hydroxyl or C.sub.1 -C.sub.3 -alkoxy), C.sub.1 -C.sub.3 -alkoxycarbonyl or C.sub.6 -C.sub.12 -aryl,R.sup.4 additionally denotes halogen,R.sup.2 and R.sup.6 may be identical or different, denote H, C.sub.1 -C.sub.6 -alkyl, benzyl, C.sub.6 -C.sub.12 -aryl, C.sub.1 -C.sub.3 -alkanoyl, benzoyl or C.sub.1 -C.sub.5 -alkoxycarbonyl, orR.sup.2 and R.sup.3 together denote a bridge of the structure (CH.sub.2).sub.n, n=2-4, CH.sub.2 --CHOH--CH.sub.2, CH.sub.2 --S--CH.sub.2 or C(CH.sub.3).sub.2 --S--CH.sub.2,excluding 2,7-diazabicyclo[3.3.0]octane.Also their preparation by the reaction ##STR2## Intermediates II are also new.Type: GrantFiled: August 21, 1991Date of Patent: January 5, 1993Assignee: Bayer AktiengesellschaftInventors: Thomas Schenke, Uwe Petersen
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Patent number: 5175284Abstract: Intermediates are described for preparing conformationally constrained tricyclic thienothiopyran compounds that are topically effective carbonic anhydrase inhibitors useful in the treatment of ocular hypertension and glaucoma associated therewith.Type: GrantFiled: October 15, 1991Date of Patent: December 29, 1992Assignee: Merck & Co., Inc.Inventors: John J. Baldwin, Gerald S. Ponticello, Kenneth L. Shepard, Theresa M. Williams
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Patent number: 5171750Abstract: The present invention relates to substituted phenylcarbamate or naphthylcarbamate tricyclic compounds which provide highly potent and selective cholinergic agonist and blocking activity and their use as pharmaceutical agents. The invention further relates to improvements in therapy relative to cholinergic diseases such as glacuoma, Myasthenia Gravis, Alzheimer's disease and to improvements in therapy and organophosphate poisoning. The invention further provides for a selective acetylcholinesterase and butyrylcholinesterase agents and a method for inhibiting these esterases.Type: GrantFiled: September 26, 1991Date of Patent: December 15, 1992Assignee: The United States of America as represented by the Department of Health and Human ServicesInventors: Arnold Brossi, Malgarzota Brzostowska, Stanley I. Rapoport, Nigel Greig, Xiao-shu He
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Patent number: 5149819Abstract: Squarylium compounds having the following formula (I), ##STR1## and an optical information recording medium comprising a substrate, and a recording layer formed on the substrate, comprising a squarylium compound having formula (II) are disclosed: ##STR2##Type: GrantFiled: May 1, 1991Date of Patent: September 22, 1992Assignees: Ricoh Company, Ltd., Kyowa Hakko Kogyo Co., Ltd.Inventors: Tsutomu Satoh, Ikuo Shimizu, Yukiyoshi Ito
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Patent number: 5126363Abstract: Indole derivatives of formula (I) ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 may be hydrogen or lower alkyl optionally substituted by halogen; A.sup.1 represents a straight or branched alkylene chain containing from 2 to 4 carbon atoms; R.sup.5 is hydrogen or a straight or branched alkyl group; A.sup.2 is a straight or branched, saturated or unsaturated hydrocarbon chain containing from 2 to 6 carbon atoms; and R.sup.6 is selected from a group consisting of various structures, have been found to exhibit central nervous system activities.Type: GrantFiled: January 23, 1991Date of Patent: June 30, 1992Assignee: Novo Nordisk A/SInventors: Lone Jeppesen, Peter H. Andersen, Louis B. Hansen, Peter Faarup, John B. Hansen
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Patent number: 5087704Abstract: The present invention provides a cyanine compound represented by the formula ##STR1## wherein R.sup.1 is a hydrogen atom or a lower alkyl group, R.sup.2 is an optionally substituted lower alkyl group, X and Y are the same or different and each represent a methylene group or an oxygen atom, Z is an acidic residue, and n is 2 or 3. This cyanine compound is suitable for use as a near infrared light-absorbing organic dye useful as an optical disc recording medium for semiconductor laser recording.Type: GrantFiled: May 4, 1990Date of Patent: February 11, 1992Assignee: Asahi Chemical Co., Ltd.Inventors: Osamu Manabe, Shigeo Fujita, Shizuo Iwata, Morihiro Kamiyama
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Patent number: 5071853Abstract: A novel series of polycyclic amines, derivatives, methods of making the compounds, novel intermediates, compositions containing them, and methods for using them in the treatment and prevention of cerebrovascular disorders are disclosed.Type: GrantFiled: February 27, 1990Date of Patent: December 10, 1991Inventors: Christopher F. Bigge, Sheryl J. Hays, Graham Johnson, Perry M. Novak, Daniel F. Ortwine
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Patent number: 5055589Abstract: The present invention provides an indolenine derivative represented by the formula ##STR1## wherein R.sup.1 is a hydrogen atom or a lower alkyl group, X and Y are the same or different and each represent a methylene group or an oxygen atom. This indolenine derivative is useful as an intermediate for synthesizing a cyanine compound suitable for use as an organic near infrared light-absorbing dye useful as an optical disc recording medium adapted for semiconductor laser recording.Type: GrantFiled: May 14, 1990Date of Patent: October 8, 1991Assignee: Asahi Chemical Co., Ltd.Inventors: Osamu Manabe, Shigeo Fujita, Shizuo Iwata, Morihiro Kamiyama
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Patent number: 5053508Abstract: There are disclosed compounds of the formula ##STR1## wherein R.sup.1 and R.sup.2 taken together represent ##STR2## R.sup.3 and R.sup.4 are hydrogen; R.sup.5 is 2-pyridinyl, 2-pyrazinyl, 2-pyrimidinyl, 3-pyridazinyl or any of the foregoing R.sup.5 moieties substituted by lower alkyl, lower alkoxy, halo lower alkyl, cyano, nitro or halo;X, Y and Z are, independently, N, S, O, NR.sup.6, SO, SO.sub.2, CR.sup.6 or CH.sub.2 ;A is lower alkylene, O or S;R.sup.6 is hydrogen, lower alkyl, aryl, aralkyl;m is 3-7;and the pharmaceutically acceptable salts thereof, and their use as antipsychotic/-anxiolytic agents having a low liability for extrapyramidal side effects.Type: GrantFiled: March 9, 1990Date of Patent: October 1, 1991Assignee: American Home Products CorporationInventors: Guy A. Schiehser, Magid A. Abou-Gharbia, Charles Lin
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Patent number: 5030646Abstract: The invention relates to compounds of general formula: ##STR1## in which A, B, G, D which may be identical or different, each denote a hydrogen atom or a halogen atom, a lower alkoxy group or alternatively a lower alkyl group optionally substituted with one or more halogen atoms,X denotes a hydrogen atom, a linear or branched lower alkyl group or a group SO.sub.2 E in which E denotes a linear or branched lower alkyl group or an aryl group optionally substituted with a linear or branched lower alkyl group,T denotes a hydrogen atom or a lower alkyl group,R.sub.3 denotes a hydrogen atom or a linear or branched lower alkyl group or an aryl group optionally substituted with one or more linear or branched lower alkyl groups,n and m, which may be identical or different, each denote 0 or 1,R.sub.1 and R.sub.2, which may be identical or different, each denote a hydrogen atom or a linear or branched lower alkyl group,or alternatively,R.sup.1 and R.sup.Type: GrantFiled: December 5, 1989Date of Patent: July 9, 1991Assignee: Adir et CompagnieInventors: Charles Malen, Jean-Michel Lacoste, Michel Laubie
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Patent number: 5025096Abstract: Indole and indole derivatives are prepared by contacting under mild reaction conditions an N-(2-toly)formidate, N-(3-methyl-2-pyridyl)formimidate, or N-methyldiazyl formimidate with an alkali metal amide.Type: GrantFiled: August 22, 1985Date of Patent: June 18, 1991Assignee: Mine Safety Appliances CompanyInventors: Kuen-Wai Chiu, Lin-Chen Yu, John R. Strickler
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Patent number: 5023340Abstract: Swainsonine and analogs, namely, 1,4-dideoxy-1,4-imino-D-mannitol and the novel ring contacted swainsonines, (1S,2R,7R,7aR)-1,2-trihydroxypyrrolizidine and (1S,2R,7S,7aR)-1,2,7-trihydroxypyrrolizidine, are synthesized from the divergent intermediate, 4,5-anhydro-1-azido-1-deoxy-2,3-O-isopropylidene-D-talitol. These novel compounds are glycosidase inhibitors.Type: GrantFiled: October 20, 1989Date of Patent: June 11, 1991Assignee: Monsanto CompanyInventor: George W. J. Fleet
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Patent number: 4987235Abstract: A compound having the formula: ##STR1## wherein R is a hydrogen atom, a lower alkyl group, an alkanoyl group, an aralkyl group, an alkylsulfonyl group or an arylsulfonyl group, and R.sup.1 is a hydrogen atom or a protecting group for a hydroxyl group, or a salt thereof.Type: GrantFiled: November 3, 1988Date of Patent: January 22, 1991Assignee: Banyu Pharmaceutical Co., Ltd.Inventors: Ryosuke Ushijima, Susumu Nakagawa, Eiichi Mano
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Patent number: 4973694Abstract: A 6-tertiary amino-2-(Z.dbd.CH--)benzofuran dye is disclosed, where Z represents the atoms providing an electron withdrawing group and a conjugated methine linkage completing a resonant dye chromophore including the 6-tertiary amino group as an electron donor and the electron withdrawing group as an electron acceptor. The dyes are formed by condensing a 6-tertiary amino-2-formylbenzofuran with an electron withdrawing dye nucleus precursor containing an active methyl or methylene site. The dyes exhibit bathocromically shifted absorption peaks.Type: GrantFiled: August 17, 1989Date of Patent: November 27, 1990Assignee: Eastman Kodak CompanyInventors: Chin H. Chen, John L. Fox
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Patent number: 4965369Abstract: A method of preparing indole carboxylic acid derivatives from aniline derivatives is described which can be carried out in a single reaction vessel without any isolation of intermediate products. The method involes reacting an aniline derivative with a soluble nitrite in an acid medium, reducing the resulting nitrosamine by treating the acidic nitrosamine containing reaction solution with zinc in the presence of sufficient acid, optionally with addition of additional acid and/or a solvent such as a lower alcohol, reacting the resulting hydrazine derivative containing solution with a lower alkyl ester of pyruvic acid to obtain a corresponding hydrazone which cyclizes to yield an indole carboxylic acid ester, and if desired, hydrolyzing the ester to obtain the corresponding carboxylic acid.Type: GrantFiled: March 7, 1990Date of Patent: October 23, 1990Assignee: Kali-Chemie Pharma GmbHInventors: Uwe Maetzel, Walter Heitmann
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Patent number: 4963181Abstract: Fungicidal 3-cyano-4-phenyl-pyrrole= derivatives of the formula ##STR1## in which Ar stands for phenyl which is trisubstituted to pentasubstituted andR stands for alkyl, alkoxy or alkoxyalkyl.Claimed are compounds of the formula (I) wherein Ar is phenyl which is trisubstituted by halogen, at least one of which is fluorine, and R is alkyl, alkoxy or alkoxyalkyl each having 1 to 6 carbon atoms in the individual alkyl moieties, fungicidal compositions containing the compounds, and a method of combating fungi comprising administering the compounds to the fungi or their habitat.Type: GrantFiled: April 12, 1989Date of Patent: October 16, 1990Assignee: Bayer AktiengesellschaftInventors: Detlef Wollweber, Wilhelm Brandes, Stefan Dutzmann
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Patent number: 4958029Abstract: A process for producing a compound of the formula: ##STR1## wherein R.sup.1 is a hydrogen atom, a lower alkyl group or an aralkyl group, and R.sup.2 is a hydrogen atom or a hydroxyl-protecting group, or a salt thereof, which comprises removing from a compound of the formula: ##STR2## wherein R.sup.3 is a hydrogen atom or a hydroxyl-protecting group, R.sup.4 and R.sup.5 which may be the same or different are N-protecting groups selected from the group consisting of lower alkyl groups and aralkyl groups, and X.sup..crclbar. is an anion, the N-protecting group(s), if necessary, together with the hydroxyl-protecting group.Type: GrantFiled: January 5, 1988Date of Patent: September 18, 1990Assignee: Banyu Pharmaceutical Co., Ltd.Inventors: Susumu Nakagawa, Satoshi Murase, Ryosuke Ushijima, Yoshiaki Kato
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Patent number: 4880801Abstract: Compounds of the general formula (I) ##STR1## (R is H, alkyl, alkenyl, alkynyl, cycloalkyl, aralkyl or CHO, R.sup.1 and R.sup.2 are independently halogen, alkyl, alkoxy, hydroxyl, cyano, nitro or --NR.sup.3 R.sup.4 where R.sup.3 and R.sup.4 are independently H or alkyl and R.sup.2 may be H) and their salts have selective .alpha..sub.2 -adrenoreceptor antagonist action.The compounds may be prepared by amination of compounds of the general formula (II) ##STR2## (where R.sup.1 and R.sup.2 are as defined above and X is a leaving group.Type: GrantFiled: May 26, 1988Date of Patent: November 14, 1989Assignee: Glaxo Group LimitedInventors: John Kitchin, Peter C. Cherry, Adrian J. Pipe, Andrew J. Crame, Alan D. Borthwick
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Patent number: 4868199Abstract: The present invention relates to novel enolamide type compounds, pharmaceutical compositions, and methods of use thereof, useful in the treatment of diseases in which products of lipoxygenase enzyme activity or the action of leukotrienes contribute to the pathological condition.Type: GrantFiled: March 9, 1988Date of Patent: September 19, 1989Assignee: Warner-Lambert CompanyInventors: Mary E. Carethers, Wiaczeslaw A. Cetenko, David T. Connor, Elizabeth A. Johnson, John S. Kiely, Charles F. Schwender, Jagadish C. Sircar, Roderick J. Sorenson, Paul C. Unangst, Robert F. Bruns
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Patent number: 4840963Abstract: Novel 2-sulfamoyl-1H-indoles and derivatives thereof are shown to be useful for the treatment of elevated intraocular pressure in pharmaceutical compositions designed for systemic or topical ophthalmic administration.Type: GrantFiled: December 7, 1984Date of Patent: June 20, 1989Assignee: Merck & Co., Inc.Inventors: Kenneth L. Shepard, Samuel L. Graham
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Patent number: 4837336Abstract: A compound of formula (I) ##STR1## is prepared by cyclizing a compound of formula (IIa) or (IIb) or a mixture thereof ##STR2## wherein X is hydroxyl or halogen and R.sup.1 and R.sup.2 independently, represent hydroxy protecting groups) followed by removal of the protecting groups R.sup.1 and R.sup.2.The compound (I) is of use as an intermediate in the stereoselective preparation of (.+-.) trans-5-fluoro-2,3,3a,9a-tetrahydro-1H-[1,4]benzodioxino[2,3-c] pyrrole, which is a selective .beta..sub.2 -adrenoreceptor antagonist and is thus of potential value, in particular, for the treatment or prevention of depression.Type: GrantFiled: October 23, 1986Date of Patent: June 6, 1989Assignee: Glaxo Group LimitedInventors: David F. Hayman, Alastair C. Brodie, Panayiotis A. Procopiou
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Patent number: 4828603Abstract: The present invention relates to novel tricyclo ether derivative compounds, to compositions containing these ether derivative compounds, and to methods of using these compounds or compositions to control the growth of undesired vegetation.Type: GrantFiled: March 21, 1988Date of Patent: May 9, 1989Assignee: E. I. Du Pont de Nemours and CompanyInventors: Kanu M. Patel, James E. Powell
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Patent number: 4822375Abstract: Dyeing compositions for keratinous fibres based on indole derivatives, and new compounds.Dyeing composition for keratinous fibres, and especially human hair, characterized in that it contains, in a cosmetically acceptable medium suitable for dyeing these fibres, at least one dye corresponding to the formula: ##STR1## in which R.sub.1 denotes a hydrogen atom or a lower alkyl group or a group --SiR.sub.9 R.sub.10 R.sub.11 ;R.sub.2 and R.sub.3, which may be identical or different, denote a hydrogen atom, a lower alkyl group, a carboxyl group, a lower alkoxycarbonyl group or a group -COOSiR.sub.9 - R.sub.10 R.sub.11 ; and R.sub.5, which may be identical or different, denote at least one linear or branched C.sub.1 -C.sub.20 alkyl group, a formyl group, a linear or branched C.sub.2 -C.sub.20 acyl group, a linear or branched C.sub.3 -C.sub.20 alkenoyl group, a group --SiR.sub.9 R.sub.10 R.sub.11, a group --P(O)(OR.sub.6).sub.2 or a group R.sub.6 OSO.sub.2 --, the other group R.sub.4 or R.sub.Type: GrantFiled: March 5, 1987Date of Patent: April 18, 1989Assignee: L'OrealInventors: Gerard Lang, Herve Richard, Madeleine Leduc, Alex Junino
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Patent number: 4812162Abstract: Compounds of the formula: ##STR1## and stereoisomers thereof, wherein R.sup.1 and R.sup.2, which are the same or different, are hydrogen, cyano or halogen (fluorine, chlorine, bromine or iodine) or optionally substituted alkyl; V is either oxygen or sulphur; W, X, Y and Z, which may be the same or different, are hydrogen, halogen, nitro, cyano, optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted cycloalkylalkyl, optionally substituted aralkyl, optionally substituted aryl, optionally substituted aryloxy, optionally substituted alkoxy, optionally substituted arylalkoxy, optionally substituted alkenyl S(O).sub.n R.sup.3 (wherein n is 0, 1 or 2), or optionally substituted heteroaryl, or W, X or X, Y or Y, Z together form methylenedioxy; and R.sup.3 is optionally substituted alkyl, optionally substituted aryl, optionally substituted aralkyl or optionally substituted heteroaryl.Type: GrantFiled: November 20, 1987Date of Patent: March 14, 1989Assignee: Imperial Chemical Industries PLCInventors: Vivienne M. Anthony, John M. Clough, Christopher R. A. Godfrey, Paul J. de Fraine
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Patent number: 4769367Abstract: Compounds of the general formula (I) ##STR1## (wherein R is H, alkyl, alkenyl, alkynyl, cycloalkyl, aralkyl or CHO; and R.sup.1 and R.sup.2 each represents H, fluorine or chlorine);and their salts have selective .alpha..sub.2 -adrenoreceptor antagonist action.The compounds may be prepared by amination of compounds of the general formula (II): ##STR2## (wherein X is a leaving group).Type: GrantFiled: June 25, 1986Date of Patent: September 6, 1988Assignee: Glaxo Group LimitedInventors: Peter C. Cherry, Adrian J. Pipe, John Kitchin, Alan D. Borthwick, Richard J. Coles, Derek Burn
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Patent number: 4705857Abstract: Indole derivatives of formula I ##STR1## R is hydrogen, one or two halogen atoms or one or two organic radicals in the 4-, 5-, 6- or 7-position(s),R.sup.1 and R.sup.4 are the same or different and each is hydrogen, alkyl of 1 to 3 carbon atoms or alkoxyalkyl of 1 to 3 carbon atoms in each of the alkoxy and alkyl portions,R.sup.3 is phenyl, --COOalkyl, --PO.sub.3 (alkyl).sub.2, --SO.sub.2 aryl, --SO.sub.2 alkyl, ##STR2## each of 1 to 3 carbon atoms in each alkyl group, and A and B each independently is alkyl of 1 to 3 carbon atoms or together with the connecting N-atom form a pyrrolidono, piperidino, morpholino or piperazino group,are valuable intermediates for preparing valuable tryptophans and .beta.-carbolines.Type: GrantFiled: October 28, 1983Date of Patent: November 10, 1987Assignee: Schering AktiengesellschaftInventor: Helmut Biere
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Patent number: 4698345Abstract: There are provided benzopyrans of formula I, ##STR1## wherein the substituents, R.sub.5 -R.sub.8 and EA are as defined in the specification. These compounds are useful as anti-asthmatic agents.Type: GrantFiled: January 28, 1985Date of Patent: October 6, 1987Assignee: Fisons plcInventors: Ian D. Dicker, John L. Suschitzky
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Patent number: 4680411Abstract: The present invention relates as new industrial product to a derivative of pyrano-indole chosen from the group constituted by:(i) the pyrano[2,3-g]indoles of general formula: ##STR1## in which: X represents a group ##STR2## (where R is a lower alkyl group, OH, lower alkoxy, tosyloxy, NH.sub.2) or ##STR3## (where R' and R", which are identical or different, each represent H or a lower alkyl);R.sub.1 represents an atom of hydrogen, a lower alkyl group, or COY.sub.1(where Y.sub.1 is a lower alkyl group, an amino acid group CH.sub.2 CH(COOH) NH.sub.2 or an aminoalkylene group -(CH.sub.2).sub.n -NR'R" in which is a whole number between 1 and 4 and R' and R" are defined as hereinabove);R.sub.2 represents an atom of hydrogen, or a COY.sub.2 group (where Y.sub.2 is OH or lower alkoxy;R.sub.3 represents an atom of hydrogen, an atom of halogen, a CHO group, lower alkyl, CF.sub.3, (CH.sub.2).sub.n NR'R" or CO-CONR'R"(where n, R' and R" are defined as hereinabove), andR.sub.Type: GrantFiled: March 12, 1984Date of Patent: July 14, 1987Assignee: Societe de Recherches IndustriellesInventor: Francois Picart
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Patent number: 4665087Abstract: 1-(Carbamyl, thiocarbamyl, and iminocarbamyl)-indoline derivatives of the formula ##STR1## where each R.sub.1 is independently alkyl, alkoxy, acyloxy, hydroxy, halo or trifluoromethyl, n is 0, 1, 2 or 3, R.sub.2 and R.sub.3 are independently hydroxy, alkoxy, amino or substituted amino, R.sub.4 and R.sub.5 are independently hydrogen, alkyl or substituted alkyl, R.sub.6 is hydrogen, alkyl or substituted alkyl, and Y is O, S or N--R.sub.7 where R.sub.7 is hydrogen, alkyl, cyano or substituted alkyl, and salts thereof, which are useful as antihypertensive and cardioactive agents, methods of preparing the same, and pharmaceutical compositions thereof, are provided.Type: GrantFiled: September 5, 1985Date of Patent: May 12, 1987Assignee: Ciba-Geigy CorporationInventor: Isidoros Vlattas
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Patent number: 4505921Abstract: New sulfonylurea compounds of the formula: ##STR1## in which n is 1 or 2,R is thienyl, furyl, pyridyl or phenyl optionally mono or disubstituted,R.sub.1 and R.sub.2, the same or different, each are hydrogen, halogen, (C.sub.1 to C.sub.5)-alkyl, (C.sub.1 to C.sub.5)-alkoxy, or trifluoromethyl, or together represent --CH.sub.2 --O--CH.sub.2 --,R.sub.3 is hydrogen, or hydroxy, andR.sub.4 is (C.sub.1 to C.sub.5)-alkyl, (C.sub.3 to C.sub.8)-cycloalkyl or azacycloalkyl of the formula: ##STR2## in which p is zero or an integer from 1 to 5, or azabicycloalkyl of the formula: ##STR3## in which m is 1, 2, or 3. These new compounds and physiologically tolerable salts thereof may be used as medicines especially in the treatment of diabetes.Type: GrantFiled: September 6, 1983Date of Patent: March 19, 1985Assignee: ADIR, S.A.R.L.Inventors: Laszlo Beregi, Pierre Hugon, Jacques Duhault, Michelle Boulanger
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Patent number: 4503236Abstract: Novel 4Hfuro[3,2-b]indoles which are useful for treating allergies are disclosed. Also disclosed are methods for preparing said indoles, pharmaceutical compositions containing said indoles and methods for using said pharmaceutical compositions.Type: GrantFiled: January 10, 1983Date of Patent: March 5, 1985Assignee: Warner-Lambert CompanyInventor: Paul C. Unangst
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Patent number: 4496579Abstract: Compounds are disclosed of general formula ##STR1## where R is H, C.sub.1-6 alkyl optionally substituted by C.sub.3-7 cycloalkyl, C.sub.3-6 alkenyl or alkynyl, C.sub.3-7 cycloalkyl, aralkyl or --CHOand the physiologically acceptable salts thereof. The compounds have selective .alpha..sub.2 -adrenoreceptor antagonist action and are indicated as potentially useful for the treatment or prevention of migraine, thrombosis, diabetes, obesity, hypertension, constipation, paralytic ileus, senile dementia and analepsis, and for use in appetite suppression and for the treatment of depression; they may be formulated as pharmaceutical compositions in conventional manner. The compounds may be prepared, for example, by amination of a compound of formula ##STR2## where X is a leaving group such as halogen or a hydrocarbylsulphonyloxy group.Type: GrantFiled: October 25, 1983Date of Patent: January 29, 1985Assignee: Glaxo Group LimitedInventors: Andrew J. Crame, Alan D. Borthwick
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Patent number: 4479963Abstract: 1-Carboxy-(alkanoyl or aralkanoyl)-indoline-2-carboxylic acids, e.g., those of the formula ##STR1## R=H, alkyl, alkoxy, halogeno or CF.sub.3 ; R'=H or R-phenyl;m=0 or 1;p,q=0 to 2;and derivatives thereof, are antihypertensive and cardioactive agents.Type: GrantFiled: April 26, 1982Date of Patent: October 30, 1984Assignee: Ciba-Geigy CorporationInventor: Norbert Gruenfeld
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Patent number: 4440779Abstract: Tricyclic derivatives of substituted pyrrole acids, e.g., substituted 4,10-dihydro-10-oxo-1H-[1]benzoxepino[4,3-b]pyrrole-2-acetic acids or the 5-thia analogs thereof have been prepared via hydrolysis of a precursor or decarboxylation of a precursor-diacid. These tricyclic compounds are found to have high analgesic and anti-inflammatory activities but low ulcerogenic side effects.Type: GrantFiled: June 4, 1982Date of Patent: April 3, 1984Assignee: Merck & Co., Inc.Inventors: James B. Doherty, Conrad P. Dorn, Bruce E. Witzel, Debra L. Allison, Tsung-Ying Shen
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Patent number: 4385063Abstract: A compound of formula (I): ##STR1## wherein: R is C.sub.1-4 alkyl;R.sub.1 is hydrogen or C.sub.1-4 alkyl;one of A and B is sulphur, and the other of A and B is carbon doubly bound to the carbon spacing A and B; andthe dotted line represents an optionally present double bond;and pro-drugs thereof; and pharmaceutically acceptable salts thereof;have useful anti-inflammatory and analgesic activity.Type: GrantFiled: March 5, 1981Date of Patent: May 24, 1983Assignee: Beecham Group LimitedInventors: Alexander C. Goudie, Robert W. Ward, Howard E. Rosenberg
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Patent number: 4385056Abstract: Benzo[4,5]pyrano[2,3c]pyrrole derivatives of the general formula: ##STR1## or pharmaceutically acceptable acid addition salts thereof, in which R.sub.1 and R.sub.2 represent hydrogen, alkyl, alkoxy, aralkoxy, hydroxy, halogen, methylenedioxy or acyloxy, and R.sub.3 represents hydrogen, alkyl, aralkyl or aminoalkyl, are potent dopamine agonists.Type: GrantFiled: October 14, 1981Date of Patent: May 24, 1983Assignee: Akzo N.V.Inventor: Hubert J. J. Loozen
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Patent number: 4380645Abstract: Improved yields of Benzoxepino- or Benzthiapino[4,3-b]pyrrole-2-acetic acids have been achieved from processes based on modifications performed on a pyrrole carboxylic ester rather than on a pyrrole-.alpha.-oxoacetate.Type: GrantFiled: December 11, 1981Date of Patent: April 19, 1983Assignee: Merck & Co., Inc.Inventors: Bruce E. Witzel, Paul E. Finke, Debra L. Allison
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Patent number: 4374847Abstract: 1-Carboxy-(alkanoyl or aralkanoyl)-indoline-2-carboxylic acids, e.g., those of the formula ##STR1## R=H, alkyl, alkoxy, halogeno or CF.sub.3 ; R'=H or R-phenyl;m=0 or 1;p,q=0 to 2;and functional derivatives thereof, are antihypertensive and cardioactive agents.Type: GrantFiled: February 17, 1981Date of Patent: February 22, 1983Assignee: Ciba-Geigy CorporationInventor: Norbert Gruenfeld
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Patent number: 4370487Abstract: A method of preparation and/or purification of acid anhydrides is disclosed. Dicarboxylic or polycarboxylic acids contained in the anhydrides to be treated, are dehydrated in an organic solvent in the presence of activated carbon.Type: GrantFiled: April 15, 1981Date of Patent: January 25, 1983Inventors: Gerhard Meyer, Erich Klimesch