Ring Chalcogen In The Tricyclo Ring System Patents (Class 548/430)
  • Patent number: 5177210
    Abstract: 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: Grant
    Filed: August 21, 1991
    Date of Patent: January 5, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Thomas Schenke, Uwe Petersen
  • Patent number: 5175284
    Abstract: 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: Grant
    Filed: October 15, 1991
    Date of Patent: December 29, 1992
    Assignee: Merck & Co., Inc.
    Inventors: John J. Baldwin, Gerald S. Ponticello, Kenneth L. Shepard, Theresa M. Williams
  • Patent number: 5171750
    Abstract: 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: Grant
    Filed: September 26, 1991
    Date of Patent: December 15, 1992
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: Arnold Brossi, Malgarzota Brzostowska, Stanley I. Rapoport, Nigel Greig, Xiao-shu He
  • Patent number: 5149819
    Abstract: 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: Grant
    Filed: May 1, 1991
    Date of Patent: September 22, 1992
    Assignees: Ricoh Company, Ltd., Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Tsutomu Satoh, Ikuo Shimizu, Yukiyoshi Ito
  • Patent number: 5126363
    Abstract: 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: Grant
    Filed: January 23, 1991
    Date of Patent: June 30, 1992
    Assignee: Novo Nordisk A/S
    Inventors: Lone Jeppesen, Peter H. Andersen, Louis B. Hansen, Peter Faarup, John B. Hansen
  • Patent number: 5087704
    Abstract: 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: Grant
    Filed: May 4, 1990
    Date of Patent: February 11, 1992
    Assignee: Asahi Chemical Co., Ltd.
    Inventors: Osamu Manabe, Shigeo Fujita, Shizuo Iwata, Morihiro Kamiyama
  • Patent number: 5071853
    Abstract: 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: Grant
    Filed: February 27, 1990
    Date of Patent: December 10, 1991
    Inventors: Christopher F. Bigge, Sheryl J. Hays, Graham Johnson, Perry M. Novak, Daniel F. Ortwine
  • Patent number: 5055589
    Abstract: 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: Grant
    Filed: May 14, 1990
    Date of Patent: October 8, 1991
    Assignee: Asahi Chemical Co., Ltd.
    Inventors: Osamu Manabe, Shigeo Fujita, Shizuo Iwata, Morihiro Kamiyama
  • Patent number: 5053508
    Abstract: 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: Grant
    Filed: March 9, 1990
    Date of Patent: October 1, 1991
    Assignee: American Home Products Corporation
    Inventors: Guy A. Schiehser, Magid A. Abou-Gharbia, Charles Lin
  • Patent number: 5030646
    Abstract: 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: Grant
    Filed: December 5, 1989
    Date of Patent: July 9, 1991
    Assignee: Adir et Compagnie
    Inventors: Charles Malen, Jean-Michel Lacoste, Michel Laubie
  • Patent number: 5025096
    Abstract: 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: Grant
    Filed: August 22, 1985
    Date of Patent: June 18, 1991
    Assignee: Mine Safety Appliances Company
    Inventors: Kuen-Wai Chiu, Lin-Chen Yu, John R. Strickler
  • Patent number: 5023340
    Abstract: 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: Grant
    Filed: October 20, 1989
    Date of Patent: June 11, 1991
    Assignee: Monsanto Company
    Inventor: George W. J. Fleet
  • Patent number: 4987235
    Abstract: 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: Grant
    Filed: November 3, 1988
    Date of Patent: January 22, 1991
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Ryosuke Ushijima, Susumu Nakagawa, Eiichi Mano
  • Patent number: 4973694
    Abstract: 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: Grant
    Filed: August 17, 1989
    Date of Patent: November 27, 1990
    Assignee: Eastman Kodak Company
    Inventors: Chin H. Chen, John L. Fox
  • Patent number: 4965369
    Abstract: 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: Grant
    Filed: March 7, 1990
    Date of Patent: October 23, 1990
    Assignee: Kali-Chemie Pharma GmbH
    Inventors: Uwe Maetzel, Walter Heitmann
  • Patent number: 4963181
    Abstract: 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: Grant
    Filed: April 12, 1989
    Date of Patent: October 16, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Detlef Wollweber, Wilhelm Brandes, Stefan Dutzmann
  • Patent number: 4958029
    Abstract: 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: Grant
    Filed: January 5, 1988
    Date of Patent: September 18, 1990
    Assignee: Banyu Pharmaceutical Co., Ltd.
    Inventors: Susumu Nakagawa, Satoshi Murase, Ryosuke Ushijima, Yoshiaki Kato
  • Patent number: 4880801
    Abstract: 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: Grant
    Filed: May 26, 1988
    Date of Patent: November 14, 1989
    Assignee: Glaxo Group Limited
    Inventors: John Kitchin, Peter C. Cherry, Adrian J. Pipe, Andrew J. Crame, Alan D. Borthwick
  • Patent number: 4868199
    Abstract: 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: Grant
    Filed: March 9, 1988
    Date of Patent: September 19, 1989
    Assignee: Warner-Lambert Company
    Inventors: 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
  • Patent number: 4840963
    Abstract: 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: Grant
    Filed: December 7, 1984
    Date of Patent: June 20, 1989
    Assignee: Merck & Co., Inc.
    Inventors: Kenneth L. Shepard, Samuel L. Graham
  • Patent number: 4837336
    Abstract: 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: Grant
    Filed: October 23, 1986
    Date of Patent: June 6, 1989
    Assignee: Glaxo Group Limited
    Inventors: David F. Hayman, Alastair C. Brodie, Panayiotis A. Procopiou
  • Patent number: 4828603
    Abstract: 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: Grant
    Filed: March 21, 1988
    Date of Patent: May 9, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Kanu M. Patel, James E. Powell
  • Patent number: 4822375
    Abstract: 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: Grant
    Filed: March 5, 1987
    Date of Patent: April 18, 1989
    Assignee: L'Oreal
    Inventors: Gerard Lang, Herve Richard, Madeleine Leduc, Alex Junino
  • Patent number: 4812162
    Abstract: 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: Grant
    Filed: November 20, 1987
    Date of Patent: March 14, 1989
    Assignee: Imperial Chemical Industries PLC
    Inventors: Vivienne M. Anthony, John M. Clough, Christopher R. A. Godfrey, Paul J. de Fraine
  • Patent number: 4769367
    Abstract: 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: Grant
    Filed: June 25, 1986
    Date of Patent: September 6, 1988
    Assignee: Glaxo Group Limited
    Inventors: Peter C. Cherry, Adrian J. Pipe, John Kitchin, Alan D. Borthwick, Richard J. Coles, Derek Burn
  • Patent number: 4705857
    Abstract: 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: Grant
    Filed: October 28, 1983
    Date of Patent: November 10, 1987
    Assignee: Schering Aktiengesellschaft
    Inventor: Helmut Biere
  • Patent number: 4698345
    Abstract: 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: Grant
    Filed: January 28, 1985
    Date of Patent: October 6, 1987
    Assignee: Fisons plc
    Inventors: Ian D. Dicker, John L. Suschitzky
  • Patent number: 4680411
    Abstract: 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: Grant
    Filed: March 12, 1984
    Date of Patent: July 14, 1987
    Assignee: Societe de Recherches Industrielles
    Inventor: Francois Picart
  • Patent number: 4665087
    Abstract: 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: Grant
    Filed: September 5, 1985
    Date of Patent: May 12, 1987
    Assignee: Ciba-Geigy Corporation
    Inventor: Isidoros Vlattas
  • Patent number: 4505921
    Abstract: 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: Grant
    Filed: September 6, 1983
    Date of Patent: March 19, 1985
    Assignee: ADIR, S.A.R.L.
    Inventors: Laszlo Beregi, Pierre Hugon, Jacques Duhault, Michelle Boulanger
  • Patent number: 4503236
    Abstract: 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: Grant
    Filed: January 10, 1983
    Date of Patent: March 5, 1985
    Assignee: Warner-Lambert Company
    Inventor: Paul C. Unangst
  • Patent number: 4496579
    Abstract: 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: Grant
    Filed: October 25, 1983
    Date of Patent: January 29, 1985
    Assignee: Glaxo Group Limited
    Inventors: Andrew J. Crame, Alan D. Borthwick
  • Patent number: 4479963
    Abstract: 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: Grant
    Filed: April 26, 1982
    Date of Patent: October 30, 1984
    Assignee: Ciba-Geigy Corporation
    Inventor: Norbert Gruenfeld
  • Patent number: 4440779
    Abstract: 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: Grant
    Filed: June 4, 1982
    Date of Patent: April 3, 1984
    Assignee: Merck & Co., Inc.
    Inventors: James B. Doherty, Conrad P. Dorn, Bruce E. Witzel, Debra L. Allison, Tsung-Ying Shen
  • Patent number: 4385063
    Abstract: 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: Grant
    Filed: March 5, 1981
    Date of Patent: May 24, 1983
    Assignee: Beecham Group Limited
    Inventors: Alexander C. Goudie, Robert W. Ward, Howard E. Rosenberg
  • Patent number: 4385056
    Abstract: 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: Grant
    Filed: October 14, 1981
    Date of Patent: May 24, 1983
    Assignee: Akzo N.V.
    Inventor: Hubert J. J. Loozen
  • Patent number: 4380645
    Abstract: 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: Grant
    Filed: December 11, 1981
    Date of Patent: April 19, 1983
    Assignee: Merck & Co., Inc.
    Inventors: Bruce E. Witzel, Paul E. Finke, Debra L. Allison
  • Patent number: 4374847
    Abstract: 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: Grant
    Filed: February 17, 1981
    Date of Patent: February 22, 1983
    Assignee: Ciba-Geigy Corporation
    Inventor: Norbert Gruenfeld
  • Patent number: 4370487
    Abstract: 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: Grant
    Filed: April 15, 1981
    Date of Patent: January 25, 1983
    Inventors: Gerhard Meyer, Erich Klimesch