Patents Examined by David E. Wheeler
  • Patent number: 3991060
    Abstract: The invention provides a compound of formula I ##SPC1##or an acid addition salt thereof, wherein R.sup.1, R.sup.2 and R.sup.4 are the same or different and represent hydrogen, or a lower alkyl radical, R.sup.5 represents hydrogen or single or multiple substitution by lower alkyl radicals, X is cyano, CONHR.sup.3, CSNHR.sup.3 or CO.sub.2 R.sup.3 wherein R.sup.3 is hydrogen or a lower alkyl radical, m is 1, 2 or 3 and R.sup.6 is hydrogen, a lower alkyl radical or a lower alkanoyl radical or an alkali-metal salt of a compound in which X is CO.sub.2 H.Compounds of formula I wherein X is CN or CSNHR.sup.3 and R.sup.6 is lower alkyl are anti-ulcer agents. The other compounds of formula I are intermediates.
    Type: Grant
    Filed: April 15, 1975
    Date of Patent: November 9, 1976
    Assignee: John Wyeth & Brother Limited
    Inventor: Adrian Charles Ward Curran
  • Patent number: 3991061
    Abstract: The present invention encompasses compounds of the formula ##SPC1##Wherein R represents hydrogen or lower alkyl having 1-7 carbon atoms and wherein one X represents (nitrogen) N and the other X represents methylidyne. The compounds of the present invention are prepared by the methods set out in the following scheme: ##SPC2##Wherein R and X are as defined above. Compounds of the present invention are useful anti-inflammatory agents.
    Type: Grant
    Filed: July 16, 1975
    Date of Patent: November 9, 1976
    Assignee: G. D. Searle & Co.
    Inventors: Robert J. Chorvat, Raphael Pappo
  • Patent number: 3991062
    Abstract: Polymerizable monomers of the formula I ##SPC1##whereinX denotes --O-- or --NH--,R denotes H--, --COOH or --COOR.sub.3,R.sub.1 denotes --H or --CH.sub.3 andR.sub.2 denotes H-- or --CH.sub.3, said monomers are obtained by acylation of 2-[4-hydroxyphenyl]-2-[5-(8-hydroxyquinolyl)]-propane or 2-[4-aminophenyl]-2-[5-(8-hydroxyquinolyl)]-propane with acid halides of the formula.
    Type: Grant
    Filed: May 2, 1975
    Date of Patent: November 9, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karsten Idel, Dieter Margotte, Gunther Reiff, Dieter Freitag, Hugo Vernaleken
  • Patent number: 3989695
    Abstract: The invention concerns 7.beta.-amino-cepham-3-ol-4-carboxylic acid compounds, particularly esters thereof, and the N-substituted, especially N-acylated derivatives of such compounds, as well as the 3-O-esters of these compounds. They can be used as intermediates, for example, for the manufacture of the corresponding 3-unsubstituted 7.beta.-amino-3-cephem-4-carboxylic acid compounds, which show outstanding pharmacological effects.
    Type: Grant
    Filed: June 26, 1973
    Date of Patent: November 2, 1976
    Assignee: Ciba-Geigy Corporation
    Inventors: Riccardo Scartazzini, Hans Bickel
  • Patent number: 3989691
    Abstract: 4-[3-(3-vinyl-1-acetyl-4-piperidyl)-1-propenyl]-6-methoxyquinoline, the corresponding epoxide and related compounds, useful in the synthesis of Cinchona alkaloids, are prepared by introducing an ylid group in the 4-position of a suitably substituted quinoline and reacting this ylid with an N-acetyl-4-piperidineacetaldehyde.
    Type: Grant
    Filed: January 9, 1975
    Date of Patent: November 2, 1976
    Assignee: Princeton University
    Inventors: Edward C. Taylor, Stephen F. Martin
  • Patent number: 3988326
    Abstract: A compound having the formula: ##EQU1## and a 7-amihocephalosporanic acid derivative having the formula: ##SPC1##Are reacted in a homogeneous aqueous solution of the reactants to prepare a reaction of the formula: ##SPC2##In the formulas, R may be H or other defined substituents such as carboxyl group; R.sub.1 is H, an alkyl of 1-4 carbons or other defined substitents; R.sub.2 is H or phenyl or when taken together with R.sub.1 form a defined cyclicradical; R.sub.3 is H or other defined substituents and M is an alkali metal cation, ammonium cation or H.
    Type: Grant
    Filed: February 13, 1975
    Date of Patent: October 26, 1976
    Assignee: Meiji Seika Kaisha, Ltd.
    Inventors: Shigeo Seki, Shingo Sugimoto, Shokichi Nakajima
  • Patent number: 3987178
    Abstract: A class of amino alicyclylmethyl penicillins, their salts, esters, method of preparation and oral compositions containing them are described. The penicillins give high and prolonged blood levels on oral administration and are active against both Gram-positive and Gram-negative bacteria.
    Type: Grant
    Filed: December 15, 1972
    Date of Patent: October 19, 1976
    Assignee: Beecham Group Limited
    Inventors: George Robert Fosker, John Barry Harbridge, Ronald Hubbard
  • Patent number: 3987047
    Abstract: Compounds of the formula ##SPC1##Wherein ##EQU1## where R.sub.1 is hydrogen, straight or branched aliphatic acyl of 1 to 12 carbon atoms, methoxy-substituted straight or branched aliphatic acyl of 1 to 12 carbon atoms, benzoyl, halo-benzoyl, carbalkoxy of 2 to 7 carbon atoms, carbcycloalkoxy of 4 to 7 carbon atoms, benzyl, methylbenzyl, phenylsulfonyl, halo-phenylsulfonyl, tolylsulfonyl, alkenyl of 2 to 6 carbon atoms, phenyl, trifluoroacetyl, amidino, amido, thioamido, phenoxycarbonyl, benzyloxycarbonyl, methylsulfonyl or--B -- XwhereB is straight or branched alkylene of 1 to 6 carbon atoms, andX is hydrogen, hydroxyl, methoxy, carboxyl, cyano, dimethylaminocarbonyl, morpholino-carbonyl or carbalkoxy of 2 to 6 carbon atoms,R.sub.2 is hydrogen, hydroxyl, alkyl of 1 to 3 carbon atoms, alkoxy of 1 to 3 carbon atoms, alkanoyloxy of 1 to 3 carbon atoms, alkoxycarbonyloxy of 2 to 4 carbon atoms, amino, dimethylamino, morpholino or halogen,R.sub.
    Type: Grant
    Filed: November 5, 1974
    Date of Patent: October 19, 1976
    Assignee: Boehringer Ingelheim GmbH
    Inventors: Gerhart Griss, Rudolf Hurnaus, Wolfgang Grell, Robert Sauter, Richard Reichl
  • Patent number: 3987048
    Abstract: In the preparation of vincadifformine and derivatives thereof, such as 3-oxo-1,2-dehydroaspidospermidine and 1,2-dehydro-aspidospermidine, 2-hydroxy-tryptamine or a derivative thereof substituted in the benzene ring is condensed with dimethyl 4-ethyl-4-formyl-pimelate to form an oxindolic lactam-ester as the first step of the process. By means of this process, vincadifformine and its derivatives can be obtained in a smaller number of steps than in known processes.
    Type: Grant
    Filed: June 18, 1974
    Date of Patent: October 19, 1976
    Assignee: Omnium Chimique Societe Anonyme
    Inventors: Jean Georges Le Men, Louisette Marie Therese Olivier nee Le Men, Jean Levy, Marie Christine Appert-Collin nee Levy, Jean Alfred Alphonse Joseph Hannart
  • Patent number: 3985740
    Abstract: 7-[D-(.alpha.-Amino-.alpha.-phenyl-, 2-thienyl- and 3-thienylacetamido)]-3-(thiazol-2-yl)carbonylthiomethyl-3-cephem-4-carboxy lic acid and 7-[D-(.alpha.-amino-.alpha.-phenyl-, 2-thienyl- and 3-thienylacetamido)]-3-(5-methylthiazol-2-yl)carbonylthiomethyl-3-cephem-4 -carboxylic acid and their pharmaceutically acceptable salts are valuable as antibacterial agents, as nutritional supplements in animal feeds, as agents for the treatment of mastitis in cattle and as therapeutic agents in poultry and animals, including man. The compounds are especially useful in the treatment, particularly by oral administration, of infectious diseases caused by many Gram-positive and Gram-negative bacteria. Also included within the invention are easily cleavable esters of the above acids and pharmaceutically acceptable acid addition salts of said esters.
    Type: Grant
    Filed: July 26, 1974
    Date of Patent: October 12, 1976
    Assignee: Bristol-Myers Company
    Inventors: John Michael Essery, Lee Cannon Cheney
  • Patent number: 3985737
    Abstract: 7-Acylamido-3-alkylsulfonyloxy (and phenyl or substituted phenylsulfonyloxy)-3-cephem-4-carboxylic acids and esters thereof are provided via sulfonation of 3-hydroxy-3-cephem esters. The 3-cephem-3-sulfonate esters are useful antibacterial compounds.
    Type: Grant
    Filed: February 6, 1974
    Date of Patent: October 12, 1976
    Assignee: Eli Lilly and Company
    Inventor: Wayne A. Spitzer
  • Patent number: 3985881
    Abstract: Novel isoquinoline derivatives of the formula ##SPC1##Wherein R.sub.1 is H or, together with R.sub.2, a C--N bond; R.sub.2 is H, R.sub.8 or, together with R.sub.1, a C--N bond; R.sub.3 is H, methyl or ethyl; R.sub.4 and R.sub.5 each are H or collectively a C--C bond; and R.sub.6 and R.sub.7 each are H or methoxy; R.sub.8 being acyl of 1-10 carbon atoms or alkyl of 1-17 carbon atoms optionally mono- or polysubstituted by phenyl, OH, ArCOO--, ArCONH--, piperidino, 3,4-dehydropiperidino, morpholino, carboxy, carbomethoxy and/or carbethoxy, Ar being 3,4,5-trimethoxyphenyl; and the physiologically acceptable acid addition salts and quaternary ammonium salts thereof, have cardiovascular activity and can be prepared by acylating a corresponding primary amine lacking the COAr group with 3,4,5-trimethoxybenzoic acid or a functional derivative thereof.
    Type: Grant
    Filed: December 9, 1974
    Date of Patent: October 12, 1976
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Werner Mehrhof, Rolf Pohlke, Karl Heinz Becker, Hans-Jochen Schliep
  • Patent number: 3985753
    Abstract: Certain substituted 6,7-dihydro-7-hydroxy-1-oxo-1H,5H-benzo[ij]quinolizine-2-carboxylic acids and salt and ester derivatives thereof are described. These compounds are useful antibacterial agents.
    Type: Grant
    Filed: April 14, 1975
    Date of Patent: October 12, 1976
    Assignee: Riker Laboratories, Inc.
    Inventors: Dietrich Schuppan, John F. Gerster, Charles M. Leir
  • Patent number: 3984417
    Abstract: Amino acids having masked amino groups react with amino acids having masked carboxyl groups to form peptide derivatives in good yields if the reaction medium contains an isonitrile. Isonitriles also are effective in causing condensation of amino acids having masked amino groups with compounds having active hydroxyl groups to the corresponding amino acid esters. The yields of the first-mentioned reaction are enhanced if the reaction mixture additionally contains one of the compounds having active hydroxyl groups. Both the peptide derivatives and the amino acid esters of the compounds having active hydroxyl groups are useful for peptide synthesis.
    Type: Grant
    Filed: December 9, 1974
    Date of Patent: October 5, 1976
    Assignee: Ajinomoto Co., Inc.
    Inventors: Naohiko Yasuda, Yasuo Ariyoshi, Koji Toi
  • Patent number: 3984416
    Abstract: Sulfonyl-ureas of the formula X--CO--NH--A--SO.sub.2 --NH--CO--NH--R.sup.1, in which R.sup.1 represents cyclopentylmethyl, alkyl-cyclopentylmethyl or dialkyl-cyclopentylmethyl, having up to 2 carbon atoms in the alkyl rest, or cyclopentylethyl, X represents a. ##SPC1##In which R.sup.2 represents hydrogen, F, Cl, Br, CF.sub.3, CH.sub.3 or OCH.sub.3,b. ##SPC2##In which R.sup.3 represents hydrogen, Cl or CH.sub.3,c. ##SPC3##In which R.sup.4 represents hydrogen, Cl or Br,A represents one of the groupings ##SPC4##And their physiologically tolerated salts, process for preparing them and pharmaceutical preparations containing them.
    Type: Grant
    Filed: May 29, 1975
    Date of Patent: October 5, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Helmut Weber, Walter Aumuller, Rudi Weyer, Karl Muth, Volker Hitzel
  • Patent number: 3981866
    Abstract: Mono-esters of .alpha.-carboxypenicillins and their preparation are described including intermediates for the mono-esters. The mono-esters are esterified on the .alpha.-carboxy group. They are well absorbed orally and de-esterified in vivo to give high serum concentrations of the parent .alpha.-carboxypenicillins.
    Type: Grant
    Filed: September 21, 1973
    Date of Patent: September 21, 1976
    Assignee: Beecham Group Limited
    Inventors: John Peter Clayton, Harry Ferres
  • Patent number: 3980650
    Abstract: A process is described for the preparation of pyrimidine derivatives having therapeutic properties. They have the general formula: ##SPC1##Wherein A represents an alkylene or alkenylene grouping which together with the carbon atoms of the pyrimidine nucleus to which it is attached forms a homocyclic ring containing five to seven carbon atoms, which homocyclic ring may carry one or more halogen, lower alkyl and/or lower alkoxy substituents and R represents an amino, lower alkylamino or di(lower)alkylamino group, or a nitrogen-, oxygen- or sulphur-containing saturated or unsaturated mononuclear heterocyclic group linked to the pyrimidine ring either through a carbon atom or, when the group contains a nitrogen atom, either through the nitrogen atom or a carbon atom and are prepared by reacting a cycloaliphatic(A)oaminonitrile with a nitrile of the formula R-CN where A and R have the above meanings in the presence of a basic alkali metal-containing compound and then reacting the resultant intermediate with water.
    Type: Grant
    Filed: May 20, 1974
    Date of Patent: September 14, 1976
    Assignee: N.V. Koninklijke Pharmaceutische Fabrieken v/h Brocades-Stheeman en Pharmacia
    Inventor: Wijbe Thomas Nauta
  • Patent number: 3980648
    Abstract: A process for the preparation of methyl 3-(2-quinoxalinylmethylene)carbazate N.sup.1,N.sup.4 -dioxide which comprises contacting a 2-quinoxalinecarboxaldehyde N.sup.1,N.sup.4 -dioxide nitrone with at least about an equimolar proportion of methyl carbazate in acidic solvent medium until reaction is substantially complete.
    Type: Grant
    Filed: March 12, 1975
    Date of Patent: September 14, 1976
    Assignee: Pfizer Inc.
    Inventors: Hermann Faubl, Banavara Lakshmana Mylari
  • Patent number: 3979386
    Abstract: Iminoisoindolinone pigments of the formula ##SPC1##WhereinX represents halogen atoms,Y represents a halogen atom, an alkoxy, cycloalkoxy, aralkoxy, aryloxy, alkylthio or arylthio group,R represents an aromatic radical containing a cyclic bound -CONH group, andQ represents an O-atom or the group =N--R and are useful for coloring plastics and lacquers in yellow shades having excellent fastness properties.
    Type: Grant
    Filed: May 22, 1974
    Date of Patent: September 7, 1976
    Assignee: Ciba-Geigy Corporation
    Inventors: Jost von der Crone, Andre Pugin, Rudolf Mory
  • Patent number: 3978064
    Abstract: Racemic 3-aminomethylene-6,7-dimethoxy-2-methyl-4-oxo-1,2,3,4-tetrahydro-1-quinoli ne carboxylic acid, alkyl, phenyl and benzyl esters as analgesic agents, synthesized from 3-hydroxymethylene-6,7-dimethoxy-2-methyl-4-oxo-1,2,3,4-tetrahydro-1-quino line carboxylic acid, alkyl, phenyl and benzyl esters and the dextrorotatory enantiomer 3-aminomethylene-6,7-dimethoxy-2-methyl-4-oxo-1,2,3,4-tetrahydro-1-quinoli ne carboxylic acid, ethyl ester, an outstanding analgesic agent.
    Type: Grant
    Filed: November 4, 1975
    Date of Patent: August 31, 1976
    Assignee: Pfizer Inc.
    Inventors: Michael R. Johnson, Jacob J. Plattner