Chalcogen In The Hetero Ring Patents (Class 540/488)
  • Patent number: 4960767
    Abstract: This invention relates to isoxazolobenzoxazepines having the following formula ##STR1## wherein X.sub.1 is H; X.sub.2 is H or OH; or X.sub.1 and X.sub.2 taken together are carbonyl oxygen or ##STR2## R is (1) H, (2) loweralkyl, (3) arylloweralkyl, (4) loweralkynyl, (5) loweralkenyl, (6) ##STR3## where R.sub.1 and R.sub.2 are independently (a) H, (b) lower alkyl, (c) arylloweralkyl, (d) ##STR4## where Z is H, halogen, loweralkyl, loweralkoxy, CF.sub.3, nitro or amino and n' is an integer of 1 to 3; (e) ##STR5## where n" is an integer of 1 to 3; or (f) R.sub.1 and R.sub.2 taken together with the nitrogen atom are substituted or unsubstituted piperidino or pyrrolidino of the formula ##STR6## where R.sub.3 is H, loweralkyl or aryl, and m is an integer of 1 or 2; (7) ##STR7## where R.sub.4 is H or loweralkyl and m' is an integer of 3 or 4; (8) ##STR8## where Z and n' are as previously defined; (9) ##STR9## where m'" is an integer of 1, 2, or 3 (10) ##STR10## where R.sub.5 and R.sub.
    Type: Grant
    Filed: January 30, 1989
    Date of Patent: October 2, 1990
    Assignee: Hoechst-Roussel Pharmaceuticals Inc.
    Inventors: Gregory M. Shutske, Kevin J. Kapples
  • Patent number: 4959361
    Abstract: The invention relates to compounds of the formula ##STR1## wherein X is --CH.dbd.CH-- or S; R.sub.1 is lower alkyl, lower alkoxy or trifluoromethyl;R.sub.2 is hydrogen, lower alkyl, lower alkoxy, hydroxy or alkanoyloxy;R.sub.3 and R.sub.4, independently, are hydrogen, chlorine, fluorine, lower alkyl or lower alkoxy;s is an integer from 0 to 1, provided that when s is 1,R.sub.2 cannot be hydroxy, lower alkoxy or alkanoyloxy;R.sub.5 is a radical of the formula R.sub.6 --(CH.sub.2).sub.n -- or R.sub.7 --O--(CH.sub.2).sub.m --wherein R.sub.6 and R.sub.7 are aryl or a heterocyclic radical, n is an integer of from 0 to 2 and m is an integer of from 1 to 2, provided that, when n is 0, R.sub.6 must be attached through a carbon to carbon bond, and provided that R.sub.7 is always attached through a carbon to oxygen bond,and, when at least one asymmetric carbon is present, its enantiomers and racemates, and pharmaceutically acceptable acid addition salts thereof.
    Type: Grant
    Filed: October 3, 1988
    Date of Patent: September 25, 1990
    Assignee: Hoffmann-La Roche Inc.
    Inventor: Armin Walser
  • Patent number: 4959359
    Abstract: Compounds of the formula ##STR1## wherein R.sub.1 is phenyl substituted with 1 to 3 substituents selected from the group consisting of halogen and lower alkoxy; R.sub.2 is hydrogen, lower alkyl, lower alkanoyl, lower cycloalkanoyl, ##STR2## R.sub.3 and R.sub.4 are independently lower alkyl, phenyl lower alkyl or together form a piperidine or pyrrolidine ring; n is 2 to 4; m is 1 to 2; and pharmaceutically acceptable acid addition salts thereof are described. The compounds of formula I are active as calcium channel blockers and accordingly, are useful as agents for treating ischemia.
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: September 25, 1990
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Erno Mohacsi, Jay P. O'Brien
  • Patent number: 4958024
    Abstract: A process for preparing a 2-carbamoylocxyalkyl-1,4-dihydropyridine derivative represented by the general formula: ##STR1## which comprises: (a) reacting a 3-amino-3-carbamoyloxyalkylacrylic acid derivative represented by the general formula: ##STR2## with a benzylidene compound represented by the general formula: ##STR3## (b) reacting the 3-amino-3-carbamoyloxyalkylacrylic acid derivative of the general formula II with an aldehyde compound represented by the general formula: ##STR4## and a .beta.-keto-ester compound represented by the general formula:R.sup.4 --CO--CH.sub.2 --COOR.sup.2 (V)(c) reacting a 3-carbamoyloxyalkylpropiolic acid derivative represented by the general formula: ##STR5## with the benzylidene compound of the general formula III and ammonia or its salt; or(d) reacting the 3-carbamoyloxyalkylpropiolic acid derivative of the general formula VI with the aldehyde compound of the general formula IV, the .beta.-keto-ester compound of the general formula V and ammonia or its salt.
    Type: Grant
    Filed: August 10, 1988
    Date of Patent: September 18, 1990
    Assignee: Banyu Pharmaceutical Company, Ltd.
    Inventors: Tetsuji Miyano, Kunio Suzuki, Ryosuke Ushijima, Susumu Nakagawa
  • Patent number: 4946942
    Abstract: The invention relates to urethane-protected amino acid-N-carboxyanhydride and N-thiocarboxyanhydride compounds which are useful in peptide, polypeptide and protein synthesis. Disclosed herein is the preparation and use of these novel compounds.
    Type: Grant
    Filed: March 11, 1988
    Date of Patent: August 7, 1990
    Assignee: Bioresearch, Inc.
    Inventors: William D. Fuller, Michael P. Cohen, Fred R. Naider, Murray Goodman
  • Patent number: 4940704
    Abstract: Novel pyrido[3,4-b][1,4]benzoxazepines, intermediates for the preparation thereof, and methods for treating depression, alleviating pain, and relieving memory dysfunction are disclosed.
    Type: Grant
    Filed: August 16, 1989
    Date of Patent: July 10, 1990
    Assignee: Hoechst-Roussel Pharmaceutical Inc.
    Inventors: Richard C. Effland, Joseph T. Klein
  • Patent number: 4935513
    Abstract: An amide is thiated to the corresponding thioamide by reacting it with phosphorus pentasulfide in the presence of a Group IIA metal fluoride as an adjuvant.
    Type: Grant
    Filed: June 7, 1989
    Date of Patent: June 19, 1990
    Assignee: Ethyl Corporation
    Inventor: Barbara C. Stahly
  • Patent number: 4935510
    Abstract: Ammonium hydroxide is used in the recovery of a thiono compound prepared by reacting an organic carbonyl compound with phosphorus pentasulfide to improve the product yield.
    Type: Grant
    Filed: June 7, 1989
    Date of Patent: June 19, 1990
    Assignee: Ethyl Corporation
    Inventor: Barbara C. Stahly
  • Patent number: 4935514
    Abstract: An amide is thiated to the corresponding thioamide by reacting it with phosphorus pentasulfide in the presence of an adjuvant selected from diatomaceous earth, zeolites, and molecular sieves.
    Type: Grant
    Filed: June 6, 1989
    Date of Patent: June 19, 1990
    Assignee: Ethyl Corporation
    Inventor: Barbara C. Stahly
  • Patent number: 4923858
    Abstract: Compounds of the general formula: ##STR1## wherein the radicals R.sub.1 and R.sub.2 are the same or different and represent hydrogen or C.sub.1 -C.sub.6 -alkyl, the radicals R.sub.3 and R.sub.4 are the same or different and represent hydrogen, C.sub.1 -C.sub.6 -alkyl, hydroxy, C.sub.1 -C.sub.6 -alkoxy, C.sub.2 -C.sub.6 -alkanoyloxy, halogen or C.sub.2 -C.sub.6 -alkanoyl, X is oxygen, sulphur or the group --NR.sub.5 and R.sub.5 is hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.2 -C.sub.6 -alkanoyl or benzoyl, m and n in each case may represent the integers 1, 2 or 3 and the phenyl radical A is unsubsituted or is substituted by halogen, nitro, C.sub.1 -C.sub.6 -alkyl, trifluoromethyl, C.sub.3 -C.sub.7 -cycloalkyl, hydroxy, C.sub.1 -C.sub.6 -alkoxy, C.sub.2 -C.sub.6 -alkanoyloxy, amino, C.sub.1 -C.sub.6 -alkylamino, di-C.sub.1 -C.sub.6 -alkylamino, C.sub.2 -C.sub.6 -alkanoylamino, CN, carboxy, C.sub.1 -C.sub.6 -alkoxycarbonyl, phenyl, C.sub.1 -C.sub.
    Type: Grant
    Filed: May 16, 1989
    Date of Patent: May 8, 1990
    Assignee: Asta Pharma Aktiengesellschaft
    Inventors: Jurgen Engel, Peter Emig, Bernd Nickel, Istvan Szelenyi
  • Patent number: 4912102
    Abstract: (+)-Cis compounds of the formula ##STR1## wherein R is lower alkyl; R.sub.1 is ##STR2## wherein R.sub.3 is pyridyl, ##STR3## or phenyl unsubstituted or substituted by up to 3 substituents selected from the group consisting of hydroxy, halogen, lower alkoxy, and lower alkanoyloxy;(-)cis enantiomers, and (.+-.)-cis racemates thereof; or pharmaceutically acceptable acid addition salts thereof are described.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: March 27, 1990
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Erno Mohacsi, Jay P. O'Brien
  • Patent number: 4892870
    Abstract: A novel class of 5, 6 or 7 member heterocycles which belong to the 3-isoxazolidinone, 2H-1,2-oxazin-3 (4H)-one and 3-isoxazepinone series of compounds and which are substituted at the 4-carbon by a benzylidene radical. The compounds have utility as analgesic agents, immunomodulating agents, anti-inflammatory agents and anti-pyretic agents and they may be combined with excipients to provide formuations which are useful in treating arthritis and conditions generally associated with that disease.
    Type: Grant
    Filed: August 1, 1988
    Date of Patent: January 9, 1990
    Assignee: Biofor, Ltd.
    Inventor: Sung J. Lee
  • Patent number: 4886794
    Abstract: 4-[(.alpha.,.alpha.-Diaryl)-hydroxymethyl]-1-piperidinylalkylcyclic carbamate derivatives having the formula: ##STR1## wherein; R is hydrogen, loweralkyl, cycloalkyl, phenyl and substituted phenyl;Ar and Ar.sup.1 are phenyl, substituted phenyl or pyridinyl;alk is a straight or branched hydrocarbon chain;R.sup.1 is loweralkyl substituted for hydrogen on a ring carbon.The compounds are useful antihistamines and in controlling allergic response.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: December 12, 1989
    Assignee: A. H. Robins Company, Incorporated
    Inventor: David A. Walsh
  • Patent number: 4873234
    Abstract: This invention relates to isoxazolobenzoxazepines having the following formula ##STR1## wherein X.sub.1 is H; X.sub.2 is H or OH; or X.sub.1 and X.sub.2 taken together are carbonyl oxygen or ##STR2## R is (1) H, (2) loweralkyl, (3) arylloweralkyl, (4) loweralkynyl, (5) loweralkenyl, ##STR3## where R.sub.1 and R.sub.2 are independently (a) H, (b) lower alkyl, (c) arylloweralkyl, (d) lower alkylene ##STR4## where Z is H, halogen, loweralkyl, loweralkoxy, CF.sub.3, nitro or amino and n is a integer of 1 to 3; ##STR5## where n" is an integer of 1 to 3; or (f) R.sub.1 and R.sub.2 taken together with the nitrogen atom are substituted or unsubstituted piperidino or pyrrolidino of the formula ##STR6## where R.sub.3 is H, loweralkyl or aryl, and m is an integer of 1 to 2; ##STR7## wherein R.sub.4 is H or loweralkyl and m' is an integer of 3 to 4; ##STR8## where Z and n are as previously defined; ##STR9## where m'" is an integer of 1,2 or 3 ##STR10## where R.sub.5 and R.sub.
    Type: Grant
    Filed: August 1, 1988
    Date of Patent: October 10, 1989
    Assignee: Hoechst-Roussel Pharmaceuticals Inc.
    Inventors: Gregory M. Shutske, Kevin J. Kapples
  • Patent number: 4846875
    Abstract: A herbicidal compound which is a Q-substituted 1-aryl-4,5-dihydro-1,2,4-triazol-5(1H)-one in which the Q-substituent is on the ring-carbon atom at the 5-position of the aryl group and in which: Q is(a) --CH(R.sup.1)ZR in which Z is O or S(O).sub.n and n is zero, one or two; or(b) --CH(R.sup.1)N(R.sup.4)(R.sup.5); or(c) --C(R.sup.9).dbd.NR.sup.
    Type: Grant
    Filed: July 21, 1987
    Date of Patent: July 11, 1989
    Assignee: FMC Corporation
    Inventor: Jun H. Chang
  • Patent number: 4831161
    Abstract: Prepare N-(amidoalkyl)imides by contacting an imide with a 2-oxazoline under reaction conditions, optionally in the presence of a solvent.
    Type: Grant
    Filed: June 24, 1987
    Date of Patent: May 16, 1989
    Assignee: The Dow Chemical Company
    Inventors: Pen-Chung Wang, Steven P. Crain
  • Patent number: 4816454
    Abstract: Substituted 4,5-dihydro-3(2H)-pyridazinones of the formula I ##STR1## wherein R, for example, denotes a radical of the formula ##STR2## R.sup.1 and R.sup.2, for example, denote hydrogen or methyl, R.sup.3, for example, denotes 2-methoxy-ethoxy, 3-pyridyl-methoxy, amino-carbonyl-methoxy, hydroxy-carbonyl-methoxy, methyl-thio, (2-methoxy-ethyl)-amino-carbonyl-methoxy, 3-pyridyl-methyl or 5-methyl-1,3,4-oxadiazol-2-yl and R.sup.4, for example, denotes hydrogen, have useful pharmacological properties and can therefore be used for the preparation of pharmacological products.
    Type: Grant
    Filed: September 12, 1985
    Date of Patent: March 28, 1989
    Assignee: Cassella Aktiengesellschaft
    Inventors: Gerhard Zoller, Rudi Beyerle, Melitta Just, Helmut Bohn, Piero Martorana, Rolf-Eberhard Nitz
  • Patent number: 4812565
    Abstract: This invention is directed to compounds having the formula: ##STR1## wherein: A represents an aromatic or heterocyclic ring having two of its carbon atoms held mutually with the oxazepine, thiazepine or diazepine moiety selected from the group consisting of benzene, naphthalene, a quinoline, a pyridine in any of its four positions, any of which rings are optionally substituted by one or two Y radicals selected from the group consisting of halo, loweralkyl, loweralkoxy, diloweralkylamino, nitro, amino, lower acylamino, trilfuoromethyl, phenyl or phenyl substituted by one to three Y' groups selected from halo, loweralkyl, loweralkoxy, diloweralkylamino, nitro, amino, loweracylamino or trifluoromethyl,E is selected from oxygen, sulfur or ##STR2## B is selected from the group consisting of loweralkyl, cycloalkyl or phenyl-loweralkyl wherein phenyl is optionally substituted by one or two radicals selected from halo, loweralkyl, loweralkoxy, nitro or trifuoromethyl,N is 1 or 2,R.sup.4 and R.sup.
    Type: Grant
    Filed: February 25, 1987
    Date of Patent: March 14, 1989
    Assignee: A. H. Robins Company, Incorporated
    Inventor: Albert D. Cale, Jr.
  • Patent number: 4808580
    Abstract: Compounds of the formula: ##STR1## wherein R.sub.1 is phenyl substituted with 1 to 3 substituents selected from the group consisting of lower alkoxy and halogen; R.sub.2 is hydroxy, lower alkoxy, lower alkanoyloxy, lower cycloalkylcarbonyloxy; ##STR2## or ##STR3## R.sub.3 and R.sub.4 are independently lower alkyl, phenyl lower alkyl or together form a piperidine or pyrrolidine ring; n is 2 to 4; m is 1 to 2; or pharmaceutically acceptable acid addition salts thereof are described. The compounds of formula I have activity as calcium channel blockers and accordingly, are useful as agents for lowering blood pressure, and as agents for treating ischemia.
    Type: Grant
    Filed: December 17, 1987
    Date of Patent: February 28, 1989
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Erno Mohacsi, Jay P. O'Brien
  • Patent number: 4785016
    Abstract: Indole derivatives are disclosed of formula (I): ##STR1## wherein R.sub.1 represents H, alkyl or alkenyl;R.sub.2 represents H, alkyl, alkenyl, cycloalkyl or phenyl or phenyl alkyl the phenyl ring being optionally substituted by halogen, alkyl, alkoxy, hydroxyl or by a group --NR.sub.a R.sub.b, or --CONR.sub.a R.sub.b, wherein R.sub.a and R.sub.b are H, alkyl, alkenyl, or with the nitrogen atom form a saturated monocyclic ring;R.sub.3 and R.sub.4 are H, alkyl or propenyl or together form an aralkylidene group;Alk represents a Cf.sub.2-3 alkyl chain optionally substituted by one or two alkyl groups; andA.sup.1 represents a C.sub.2-5 alkenyl chain and salts and solvates thereof.The compounds have selective vasoconstrictor activity and are useful in treating and/or preventing pain resulting from dilatation of the cranial vasculature, particularly migraine. The compounds may be formulated in conventional manner with pharmaceutically acceptable carriers or excipients.
    Type: Grant
    Filed: December 3, 1985
    Date of Patent: November 15, 1988
    Assignee: Glaxo Group Limited
    Inventors: Brian Evans, Alexander W. Oxford, Darko Butain
  • Patent number: 4778790
    Abstract: Compounds of formula (I): ##STR1## (wherein A is an alkylene group substituted by an optionally substituted amino or heterocyclic group and optionally interrupted by an oxygen or sulfur atom, R.sup.2 is various organic groups, B is C.sub.1 -C.sub.2 alkylene and Y is sulfur or methylene) and pharmaceutically acceptable salts and esters thereof are valuable hypotensive agents which may be prepared by a condensation reaction of the corresponding compound having an amino group in place of the group A--CH(COOH)--NH--.
    Type: Grant
    Filed: April 3, 1987
    Date of Patent: October 18, 1988
    Assignee: Sankyo Company Limited
    Inventors: Hiroaki Yanagisawa, Sadao Ishihara, Akiko Ando, Hiroyuki Koike, Yasuteru Iijima
  • Patent number: 4766210
    Abstract: Antihypertensive compounds of the structure ##STR1## wherein: n is an integer from 0 to 2 inclusive,R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, and R.sub.7 are independently hydrogen, alkyl having from 1 to 6 carbon atoms, alkenyl having from 2 to 6 carbon atoms, alkynyl having from 2 to 6 carbon atoms, cycloalkyl having from 3 to 16 carbon atoms, phenyl, benzyl, tolyl, naphthyl, phenethyl, indanyl, tetrahydronaphthyl, decahydronaphthyl, pyridyl, quinolyl, pyrrolidyl, pyrrolyl, morpholinyl, thiomorpholinyl, furyl, furfuryl, tetrahydrofurfuryl, benzimidazole, thienyl, imidolyl, or tetrahydroindolyl, and where the R.sub.1 to R.sub.7 groups are alkyl, said groups carrying a substituent selected from hydroxy, alkoxy, amino, carboxy, or carbalkoxy, the alkyl group in alkoxy and carbalkoxy having from 1 to 6 carbon atoms, or R.sub.2 taken together with R.sub.3 and the carbons to which they are attached is tetrahydronapthyl or phenyl, and when phenyl R.sub.1 and R.sub.4 are absent, or R.sub.6 and R.sub.
    Type: Grant
    Filed: July 29, 1981
    Date of Patent: August 23, 1988
    Inventors: John T. Suh, Bruce E. Williams, Jerry W. Skiles, Bernard Loev
  • Patent number: 4746655
    Abstract: Novel aromatic-spiropiperidineoxazepinones and thiones exhibiting antihistamine activity are disclosed having the formula: ##STR1## wherein A represents an aromatic ring, selected from benzo when Z is carbon or pyrido[3,2-f] when Z is nitrogen either of which rings may be optionally substituted on carbon;B is selected from oxygen or sulfur;R.sup.1 is selected from the group consisting of loweralkyl, cycloalkyl, cycloalkyl-loweralkyl or phenyl-loweralkyl of which phenyl may be optionally substituted;R is selected from the group consisting of loweralkyl, cycloalkyl or phenyl-loweralkyl of which phenyl may be optionally substituted and the pharmaceutically acceptable salts thereof and novel chemical intermediates in the preparation thereof.
    Type: Grant
    Filed: June 10, 1987
    Date of Patent: May 24, 1988
    Assignee: A. H. Robins Company, Incorporated
    Inventor: Albert D. Cale, Jr.
  • Patent number: 4728735
    Abstract: Compounds of the Formula I: ##STR1## are inhibitors of the mammalian 5-lipoxygenase enzyme system of the arachidonic acid cascade. As such, these compounds are useful therapeutic agents for treating allergic conditions, asthma, cardiovascular disorders and inflammation and are useful as cytoprotective agents.
    Type: Grant
    Filed: November 10, 1986
    Date of Patent: March 1, 1988
    Assignee: Merck & Co., Inc.
    Inventors: Patrice C. Belanger, Joshua Rokach, John Scheigetz
  • Patent number: 4724266
    Abstract: The present invention provides combination of materials for strengthening the antithrombotic action of acetylsalicylic acid. It covers a composition which contains diltiazem or a pharmaceutically acceptable acid-addition salt thereof in combination with acetylsalicylic acid. It also forms the new compound diltiazem acetysalicylate. It also covers compositions containing the above and methods for using the compositions or compound.
    Type: Grant
    Filed: July 21, 1987
    Date of Patent: February 9, 1988
    Assignee: Godecke Aktiengesellschaft
    Inventors: Gerhard Satzinger, Gunter Wolf, Hartmut Osswald, Ute Weiershausen
  • Patent number: 4709027
    Abstract: There are disclosed compounds of the formula ##STR1## wherein R.sup.1 and R.sup.2 are each, independently, hydrogen or lower alkyl, or R.sup.1 and R.sup.2 taken together represent ##STR2## A is O or NR.sup.3 ; B is --(CH.sub.2).sub.n --, ##STR3## R.sup.3 is hydrogen or lower alkyl; R.sup.4 is hydrogen, lower alkyl, aryl of 6-12 carbon atoms or halo;R.sup.5 is unsubstituted or substituted phenyl, 2-pyridinyl, 2-pyrimidinyl, 2-pyrazinyl or 3-pyridazinyl, where the substituents are selected from the group lower alkyl, lower alkoxy, halo, cyano, nitro and trifluoromethyl;Z is --(CH.sub.2).sub.n -- or vinylene;X is lower alkylene, vinylene or O;m is 2-5;n is 1-3;o is 1-5;and the pharmaceutically acceptable salts thereof and their use as antipsychotic/anxiolytic agents having a low liability for extrapyramidal side effects.
    Type: Grant
    Filed: June 25, 1986
    Date of Patent: November 24, 1987
    Assignee: American Home Products Corporation
    Inventors: Magid A. Abou-Gharbia, Guy A. Schiehser
  • Patent number: 4705853
    Abstract: Aromatic azepinones and thiones having the formula ##STR1## wherein; A is benzene, naphthalene, quinoline or pyridine;B is oxygen or sulfur;E is oxygen, sulfur or ##STR2## n is 1, 2 or 3; Z is an amino or a heterocyclic nitrogen-containing radical;R is hydrogen, loweralkyl, cycloalkyl or phenylloweralkyl;Y is halo, loweralkyl, loweralkoxy, diloweralkylamino, nitro, amino, loweracetylamino, trifluoromethyl, phenyl or phenyl substituted by one to three Y' radicals selected from halo, loweralkyl, loweralkoxy, diloweralkylamino, nitro, amino, loweracylamino or trifluoromethyl;and having antihistaminic utility, a process for the preparation thereof and chemical intermediates therefor are disclosed.
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: November 10, 1987
    Assignee: A. H. Robins Company, Inc.
    Inventor: Albert D. Cale, Jr.
  • Patent number: 4699905
    Abstract: Compounds of formula (I): ##STR1## (wherein: R.sup.1 represents an optionally substituted alkyl, cycloalkyl, aryl, partially hydrogenated aryl or heterocyclic group; R.sup.2, R.sup.3, R.sup.4 and R.sup.5 represent hydrogen or an optionally substituted alkyl, cycloalkyl, aralkyl, aryl, heterocyclic or heterocyclic-alkyl group or any adjacent pair thereof form a cyclic structure, at least one not being hydrogen; A represents a bond, or a methylene, ethylene, oxymethyl or thiomethyl group; B represents an alkylene, alkylidene, cycloalkylene or cycloalkylidene group; and n is 0, 1 or 2) and salts and esters thereof are hypotensive agents.
    Type: Grant
    Filed: April 9, 1985
    Date of Patent: October 13, 1987
    Assignee: Sankyo Company, Limited
    Inventors: Hiroaki Yanagisawa, Sadao Ishihara, Akiko Ando, Takuro Kanazaki, Hiroyuki Koike, Yoshio Tsujita
  • Patent number: 4667031
    Abstract: Oxazepinones and thiazepinones correspoding to the formula: ##STR1## are prepared by mixing an alkali metal salt corresponding to the formula ##STR2## with oxalyl chloride or bromide in an inert solvent and heating to effect halogenation and fusion, A in the formulas representing a substituted or unsubstituted benzene, naphthalene, or pyridine ring bearing up to two Y substituents; E being oxygen or sulfur; R being an alkyl, cycloalkyl, or phenalkyl group or a substituted phenalkyl group bearing up to two ar-Y substituents; X being chloro or bromo; M being an alkali metal; n being one or two; and Y being a substituent selected from alkyl, alkoxy, trifluorimethyl, nitro, and halo. The products are useful as pharmaceutical intermediates.
    Type: Grant
    Filed: October 15, 1985
    Date of Patent: May 19, 1987
    Assignee: Ethyl Corporation
    Inventor: Kenneth C. Lilje
  • Patent number: 4663452
    Abstract: An organic carbonyl compound is thiated to the corresponding thiono compound by reacting it with phosphorus pentasulfide in the presence of an alkali metal bicarbonate and a hydrocarbon diluent. In preferred embodiments of the invention, the carbonyl compound is an amide, especially an aromatic amide, and the diluent is an inert hydrocarbon having a boiling point in the range of about 50.degree.-150.degree. C.
    Type: Grant
    Filed: August 29, 1985
    Date of Patent: May 5, 1987
    Assignee: Ethyl Corporation
    Inventor: Kenneth C. Lilje
  • Patent number: 4652561
    Abstract: Compounds of the formula ##STR1## wherein R.sub.1 is phenyl substituted with 1 to 3 lower alkoxy groups or 1 to 3 halogens; R.sub.2 is hydroxy, lower alkoxy, lower alkanoyloxy, lower cycloalkylcarbonyloxy; ##STR2## R.sub.3 and R.sub.4 are independently lower alkyl, phenyl lower alkyl or together form a piperidine or pyrrolidine ring; n is 2 to 4; m is 1 to 2; or pharmaceutically acceptable acid addition salts thereof are described. The compounds of formula I have activity as calcium channel blockers and accordingly, are useful as agents for lowering blood pressure, and as agents for treating ischemia.
    Type: Grant
    Filed: February 26, 1986
    Date of Patent: March 24, 1987
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Erno Mohacsi, Jay P. O'Brien
  • Patent number: 4642343
    Abstract: Aromatic azepinones and thiones having the formula ##STR1## wherein: A is benzene, naphthalene, quinoline or pyridine;B is oxygen or sulfur;E is oxygen, sulfur or ##STR2## n is 1, 2 or 3; Z is an amino or a heterocyclic nitrogen containing radical;R is hydrogen, loweralkyl, cycloalkyl or phenylloweralkyl;and having antihistaminic utility, a process for the preparation thereof and chemical intermediates therefor are disclosed.
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: February 10, 1987
    Assignee: A. H. Robins Company, Incorporated
    Inventor: Albert D. Cale, Jr.
  • Patent number: 4632695
    Abstract: N-Phenylsulfonyl-N'-triazinylureas of the general formula I ##STR1## and the salts of these compounds with amines, alkali metal bases or alkaline earth metal bases or with quaternary ammonium bases, have good selective herbicidal and growth regulating properties when applied pre- and postemergence. The symbols in formula I have the following meanings:R.sub.1 is hydrogen, halogen, nitro, cyano, or an alkyl, alkoxy, alkylthio, alkylsulfonyl, alkylcarbonyl, alkylcarbamoyl or alkoxycarbonyl group, each unsubstituted or substituted by halogen or alkoxy,R.sub.2 is hydrogen, halogen, alkyl, or an alkyl, alkoxy or alkylthio group, each unsubstituted or substituted by halogen or alkoxy,R.sub.3 is alkyl, haloalkyl, alkoxy or haloalkoxy,R.sub.4 is hydrogen, halogen, R.sub.3, alkylamino or dialkylamino,R.sub.
    Type: Grant
    Filed: December 6, 1985
    Date of Patent: December 30, 1986
    Assignee: Ciba-Geigy Corporation
    Inventors: Rolf Schurter, Rudolph C. Thummel, Werner Topfl, Willy Meyer, Dieter Durr
  • Patent number: 4628085
    Abstract: A process for selective preparation of lactams which comprises contacting, in the vapor phase, an aliphatic or aromatic aminonitrile having the formula HR.sub.1 N--D--CN wherein D is a divalent organic moiety and wherein R.sub.1 is (C.sub.1 -C.sub.4) alkyl or hydrogen with an effective amount of a silica catalyst, in the form of substantially spherical beads having a BET surface area greater than about 250 m.sup.2 /g, preferably between 300 and 500 m.sup.2 /g, and an average pore diameter less than about 20 nanometers preferably 8-10 nanometers at a temperature in the range of about 200.degree. to about 400.degree. C. and at a hydrogen or inert gas flow with a pressure in the range of about 0 to about 300 kPa, in the presence of: (a) ammonia in an amount equal to from 0 to about 50 mole percent of the molar amount of aliphatic or aromatic aminonitrile present; and (b) water in an amount from at least about 1.
    Type: Grant
    Filed: September 3, 1985
    Date of Patent: December 9, 1986
    Assignee: Allied Corporation
    Inventors: Frank Mares, Reginald T-H. Tang, James E. Galle, Rose M. Federici
  • Patent number: 4625023
    Abstract: Process for the selective conversion of dinitriles into the corresponding lactam by treating the dinitrile with an effective amount of a hydrogenation catalyst such as copper chromite in combination with a co-catalyst, such as titania, at a temperature in the range of from about 200.degree. C. to about 400.degree. C. and at a pressure of at least 50 kPa in the presence of water and hydrogen.
    Type: Grant
    Filed: September 3, 1985
    Date of Patent: November 25, 1986
    Assignee: Allied Corporation
    Inventors: Frank Mares, Reginald Y. Tang, James E. Galle, Rose M. Federici
  • Patent number: 4610819
    Abstract: A process for the preparation of 1,4-oxazepinones and thiones having the formula: ##STR1## wherein A is an aromatic ring selected from benzene, naphthalene, quinoline or pyridine; n is 1 to 3; Z is an amino radical; R is hydrogen, loweralkyl, cycloalkyl or phenylloweralkyl; and R.sup.4 and R.sup.5 are hydrogen and loweralkyl starting from chloroaromatic carboxylates and alkanolamines is disclosed.
    Type: Grant
    Filed: September 19, 1984
    Date of Patent: September 9, 1986
    Assignee: A. H. Robins Company, Inc.
    Inventors: Young S. Lo, Albert D. Cale, Jr.
  • Patent number: RE32519
    Abstract: Isoquinolines are disclosed of the formula (I) ##STR1## wherein R independently represents hydrogen, hydroxyl or alkoxy having 1 to 4 carbon atoms,R.sup.1 is hydrogen, alkyl having 1 to 4 carbon atoms and optionally substituted with phenyl, phenyl optionally substituted with one or more halogen or alkoxy group, cyano or carbomoyl,R.sup.2 is phenyl optionally substituted with one or more halogen, alkoxy or carboxyl, or a group of the general formula A ##STR2## wherein R.sup.3 is hydrogen, a straight or branched chained alkyl having 1 to 4 carbon atoms or phenyl,m and n independently represent 0, 1 or 2, with the proviso that m+n is at least 1,R.sup.4 is hydrogen, phenyl, hydroxyl, acyloxy, carboxyl, alkoxycarbonyl having 1 to 6 carbon atoms, carbamoyl, carbazoyl or dialkylamino containing 1 to 6 carbon atoms in the alkyl moiety, orR.sup.
    Type: Grant
    Filed: August 17, 1983
    Date of Patent: October 13, 1987
    Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara
    Inventors: Kalman Takacs, Maria H. Papp, Gabor Kovaacs, Ilona K. Ajzert, Antal Simay, Peter L. Nagy, Marian E. Puskas, Gyula Sebestyen, Istvan Stadler, Zoltan Sumeghy