Patents Represented by Attorney David E. Frankhouser
  • Patent number: 4626325
    Abstract: The specification describes a process for preparing 4-hydroxy-1,2-benzisothiazol-3(2H)-one-1,1-dioxide, a sweetener, from 1,2-benzisothiazol-3(2H)-one-1,1-dioxide by anodic oxidation in the presence of trifluoroacetic acid or trifluoromethanesulfonic acid and, optionally, in the presence of salts which increase the conductivity. The oxidation is effected in an anhydrous medium and the 4-trifluoroacetoxy-1,2-benzisothiazol-3(2H)-one-1,1-dioxide formed as an intermediate when, for example, trifluoroacetic acid is used is decomposed with water to obtain the desired end product.
    Type: Grant
    Filed: March 19, 1986
    Date of Patent: December 2, 1986
    Assignee: Karl Thomae GmbH
    Inventors: Gunter Trummlitz, Wolfgang Eberlein, Wolfhard Engel, Gerhard Mihm
  • Patent number: 4623646
    Abstract: The invention discloses a method of treating an individual having a disorder responsive to PAF-antagonist activity by treating the individual with a compound of formula I. ##STR1## wherein A is an anellated and optionally substituted benzene or 5- or 6- membered heterocyclic ring; R.sub.5 and Z are each independently hydrogen or an optionally substituted C.sub.1 -C.sub.8 alkyl, alkenyl or alkynyl; R.sub.6 is an optionally substituted phenyl, or is thienyl or .alpha.-pyridyl; Y is ##STR2## and nontoxic, pharmaceutically acceptable acid addition salts thereof.
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: November 18, 1986
    Assignee: Boehringer Ingelheim KG
    Inventors: Jorge Casals-Stenzel, Karl-Heinz Weber, Gerhard Walther, Albrecht Harreus, Gojko Muacevic
  • Patent number: 4622319
    Abstract: The invention discloses a method of treating an individual having a disorder responsive to PAF-antagonist activity by treating the individual with a compound of formula I or II ##STR1## wherein A is an anellated and optionally substituted benzene or 5- or 6-membered heterocyclic ring; R.sub.5 and Z are each independently hydrogen or an optionally substituted C.sub.1 -C.sub.8 alkyl, alkenyl or alkynyl; R.sub.6 is an optionally substituted phenyl, or is thienyl or is .alpha.-pyridyl; Y is CO, CS or CH.sub.2 ; and nontoxic, pharmaceutically acceptable acid addition salts thereof.
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: November 11, 1986
    Assignee: Boehringer Ingelheim KG
    Inventors: Jorge Casals-Stenzel, Karl-Heinz Weber, Gerhard Walther, Albrecht Harreus, Gojko Muacevic
  • Patent number: 4621083
    Abstract: The invention discloses a method of treating an individual having a disorder responsive to PAF-antagonist activity by treating the individual with a compound of formula I or II: ##STR1## wherein A is an annealed and optionally substituted benzene or 5- or 6-membered heterocyclic ring; B is an optionally substituted 5-membered heterocyclic ring; R.sub.5 and R.sub.7 are each independently hydrogen or an optionally substituted C.sub.1 -C.sub.8 alkyl, alkenyl or alkynyl; R.sub.6 is an optionally substituted phenyl, or is thienyl or .alpha.-pyridyl; and non-toxic, pharmaceutically acceptable acid addition salts thereof.
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: November 4, 1986
    Assignee: Boehringer Ingelheim KG
    Inventors: Jorge Casals-Stenzel, Karl-Heinz Weber, Gerhard Walther, Albrecht Harreus, Gojko Muacevic
  • Patent number: 4618677
    Abstract: Compounds of the formula ##STR1## wherein R is hydrogen or ##STR2## A is alkyl of 1 to 8 carbon atoms; cycloalkyl of 3 to 7 carbon atoms; phenyl; or phenyl mono-, di- or tri-substituted independently with alkyl of 1 to 4 carbon atoms, halogen, trihalomethyl, alkoxy of 1 to 3 carbon atoms, carboxylic acyl of 1 to 3 carbon atoms, carboxyl, (alkoxy of 1 to 3 carbon atoms)carbonyl, nitro, cyano or di(alkyl of 1 to 3 carbon atoms)amino;R.sub.1, R.sub.2 and R.sub.3, are independently hydrogen, halogen, alkyl of 1 to 4 carbon atoms, trihalomethyl, nitro, cyano, di(alkyl of 1 to 4 carbon atoms)amino, (alkoxy of 1 to 4 carbon atoms)carbonyl, alkoxy of 1 to 4 carbon atoms or hydroxyl;R.sub.4 and R.sub.5 are independently hydrogen, alkyl of 1 to 4 carbon atoms, or phenyl;R.sub.6, R.sub.7, R.sub.8 and R.sub.9 are independently hydrogen or methyl;Y is --CH.sub.2 -- or --CH.sub.2 --CH.sub.
    Type: Grant
    Filed: November 5, 1984
    Date of Patent: October 21, 1986
    Assignee: Boehringer Ingelheim Limited
    Inventors: Karl D. Hargrave, John P. Devlin, Edward A. Barsumian
  • Patent number: 4608381
    Abstract: Disclosed are novel 2-(2,2,2-trifluoroethylsulfonyl)-1H-benzimidazoles represented by formula I ##STR1## wherein R.sub.1 and R.sub.2 are each independently hydrogen, halogen or C.sub.1 -C.sub.2 lower alkyl and nontoxic, pharmaceutically acceptable salts thereof as well as the corresponding trifluoroethylmercapto compounds which are useful as intermediates in making the compounds of Formula I. The compounds of Formula I can be used for the treatment of chronic inflammation and inflammatory diseases such as rheumatoid arthritis.
    Type: Grant
    Filed: May 30, 1985
    Date of Patent: August 26, 1986
    Assignee: Boehringer Ingelheim Pharmaceuticals, Inc.
    Inventor: Edward S. Lazer
  • Patent number: 4604389
    Abstract: This invention relates to benzazepine derivatives of formula I ##STR1## wherein A is --CH.sub.2 CH.sub.2 -- or --CH.dbd.CH--;R.sub.1 is hydrogen, chlorine, bromine, C.sub.1 -C.sub.3 alkyl, amino, C.sub.1 -C.sub.3 alkylamino, C.sub.1 -C.sub.3 dialkylamino, acylamino, hydroxy, C.sub.1 -C.sub.3 alkoxy or phenyl C.sub.1 -C.sub.3 alkoxy;R.sub.2 is hydrogen, chlorine, bromine, hydroxy, C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkoxy or phenyl C.sub.1 -C.sub.3 alkoxy or, together with R.sub.1, can be C.sub.1 -C.sub.3 alkylenedioxy;R.sub.3 is hydrogen, chlorine, bromine or C.sub.1 -C.sub.3 alkoxy;R.sub.4 is hydrogen, benzyl, C.sub.1 -C.sub.3 alkyl or C.sub.3 -C.sub.5 alkenyl;R.sub.5 is hydrogen, halogen, C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.3 alkoxy;R.sub.6 is hydrogen, C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.3 alkoxy or, together with R.sub.5, can be a C.sub.1 -C.sub.2 alkylenedioxy;X is an imino, optionally substituted by a benzyl or C.sub.1 -C.sub.
    Type: Grant
    Filed: May 8, 1985
    Date of Patent: August 5, 1986
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Manfred Reiffen, Klaus Noll, Joachim Heider, Volkhard Austel, Norbert Hauel, Walter Kobinger, Christian Lillie
  • Patent number: 4603141
    Abstract: Disclosed is a method of treating chronic congestive heart failure and particularly of increasing exercise tolerance in individuals so afflicted which comprises orally administering to such individuals a therapeutically effective amount of 2-[(2,6-dichlorophenyl)amino]-2-imidazoline or a nontoxic, pharmaceutically acceptable addition salt thereof. Such oral administration is preferably in an amount of at least about 0.1 mg/day for periods of at least about one week.
    Type: Grant
    Filed: November 30, 1984
    Date of Patent: July 29, 1986
    Inventor: Thomas D. Giles
  • Patent number: 4594344
    Abstract: Disclosed are novel compounds having the formula ##STR1## wherein R.sub.1 is a hydrogen or halogen atom, a lower alkyl, lower alkoxy, lower alkoxy lower alkyl, lower alkenyl, lower alkenyl oxy, cyano, hydroxy, trifluoromethyl, nitro, amino, aminocarbonylmethyl, lower monoalkylamino, lower dialkylamino group;R.sub.2 is a hydrogen or halogen atom, cyano, lower alkyl or lower alkoxy or acylamino group;R.sub.3 is a hydrogen or halogen atom, a lower alkyl or lower alkoxy group, while R.sub.2 and R.sub.3 together can also be a butadienyl or methylene dioxy group;R.sub.4 is a hydrogen atom or a lower alkyl group;R.sub.5 is a chlorine atom or a trifluoromethyl group;X is an alkylene group;and the non-toxic, pharmaceutically acceptable acid addition salts thereof.The compounds are suitable for treatment and prophylaxis of hypertension.
    Type: Grant
    Filed: July 15, 1985
    Date of Patent: June 10, 1986
    Assignee: Boehringer Ingelheim KG
    Inventors: Herbert Koppe, Wolfgang Abele, deceased, Franz Esser, Wolfram Gaida, Wolfgang Hoefke
  • Patent number: 4584293
    Abstract: This invention related to new aminotetralin derivatives of formula I ##STR1## wherein ##STR2## B is methylene or, when A is --CH.sub.2 --CH.sub.2 --, --CH.dbd.CH--, --NH--CO-- or --CH.sub.2 --CO--, B can also be carbonyl or thiocarbonyl;E is a C.sub.2 -C.sub.4 straight-chain alkylene, optionally substituted by a C.sub.1 -C.sub.3 alkyl, or is 2-hydroxy-n-propylene, 2-hydroxy-n-butylene or 3-hydroxy-n-butylene;R.sub.1 is hydrogen, fluorine, chlorine, bromine, trifluoromethyl, nitro, amino, C.sub.1 -C.sub.3 alkylamino, C.sub.1 -C.sub.3 dialkylamino, C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkylthio, hydroxy, C.sub.1 -C.sub.3 alkoxy or phenyl C.sub.1 -C.sub.3 alkoxy;R.sub.2 is hydrogen, chlorine, bromine, hydroxy, C.sub.1 -C.sub.3 alkoxy phenyl C.sub.1 -C.sub.3 alkoxy, or C.sub.1 -C.sub.3 alkyl or, together with R.sub.1, can be a C.sub.1 -C.sub.2 alkylenedioxy;R.sub.3 and R.sub.4 are each independently selected from hydrogen, fluorine, chlorine, bromine, C.sub.1 -C.sub.3 alkyl, hydroxy, C.sub.1 -C.sub.
    Type: Grant
    Filed: May 8, 1985
    Date of Patent: April 22, 1986
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Manfred Reiffen, Joachim Heider, Volkhard Austel, Norbert Hauel, Walter Kobinger, Christian Lillie
  • Patent number: 4581177
    Abstract: A new process is disclosed for preparing 3-cyano-4-aminoacetophenone which, starting from 3-cyano-4-acetamidoacetophenone, enables this compound to be produced on an industrial scale in high yields.3-Cyano-4-aminoacetophenone is an intermediate product for the preparation of 2-amino-5-[1-hydroxy-2-(alkyl- or dialkyl-amino)ethyl]benzonitriles which show .beta..sub.2 -mimetic activities and may be used as feed additives.
    Type: Grant
    Filed: April 17, 1985
    Date of Patent: April 8, 1986
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Wolfgang Resemann, Ferdinand Fraunberger
  • Patent number: 4579947
    Abstract: Compounds of the formula ##STR1## having activity as antihistamine or inhibitors of mediator release from basophils or mast cells.
    Type: Grant
    Filed: May 29, 1984
    Date of Patent: April 1, 1986
    Assignee: Boehringer Ingelheim Pharmaceuticals, Inc.
    Inventors: John P. Devlin, Karl D. Hargrave, Edward L. Barsumian, Genus J. Possanza
  • Patent number: 4572740
    Abstract: The invention relates to new blowing and nucleating agents for the processing of plastics, which are based on mono- and diesters of citric acid.
    Type: Grant
    Filed: March 26, 1985
    Date of Patent: February 25, 1986
    Assignee: Boehringer Ingelheim KG
    Inventors: Gunther Kretzschmann, Dieter Scholz, Karl-Heinz Hilgert
  • Patent number: 4550107
    Abstract: Disclosed are novel condensed diazepinones of formula I ##STR1## wherein B is a fused ring selected from ##STR2## X is --CH-- or, when B is ortho-phenylene, X can also be nitrogen; A.sub.1 is C.sub.1 -C.sub.2 alkylene; A.sub.2 is C.sub.1 -C.sub.2 when it is in the 2-position relative to the saturated heterocyclic ring nitrogen or a single bond or methylene when it is in the 3- or 4-position; R.sub.1 is C.sub.1 -C.sub.3 alkyl; R.sub.2 is C.sub.1 -C.sub.7 alkyl, optionally hydroxy-substituted on at least one of its second to seventh carbon, or C.sub.3 -C.sub.7 cycloalkyl, optionally hydroxy substituted, or C.sub.3 -C.sub.7 cycloalkylmethyl; or R.sub.1 and R.sub.2 can, together with the nitrogen therebetween, be a 4- to 7-membered saturated monocyclic, heterocyclic ring which can optionally include an oxygen or N--CH.sub.3 ; R.sub.3 is hydrogen, chlorine, or methyl; R.sub.4 is hydrogen or C.sub.1 -C.sub.4 alkyl, R.sub.5 is hydrogen, chlorine or C.sub.1 -C.sub.
    Type: Grant
    Filed: March 14, 1985
    Date of Patent: October 29, 1985
    Assignee: Dr. Karl Thomae GmbH
    Inventors: Wolfhard Engel, Gunter Trummlitz, Wolfgang Eberlein, Gerhard Mihm, Gunther Schmidt, Rudolf Hammer, Antonio Giachetti
  • Patent number: 4418077
    Abstract: Fluorinated aminobutyric acid and diaminobutane compounds in vivo are inhibitors of gamma-aminobutyric acid transaminase and have the following formula: ##STR1## wherein: Y represents hydrogen or fluorine;Z represents --CH.sub.2 NR.sub.1 R.sub.2, where R.sub.1 and R.sub.2 are as defined below, or --COR.sub.3 where R.sub.3 is as defined below;R.sub.a represents hydrogen or R.sub.4, where R.sub.4 is as defined below;R.sub.1 represents hydrogen, C.sub.1 -C.sub.6 alkyl or phenyl-(C.sub.1 -C.sub.4 alkyl);R.sub.2 represents hydrogen, C.sub.1 -C.sub.6 alkyl, phenyl-(C.sub.1 -C.sub.4 alkyl) or, when R.sub.a is hydrogen, R.sub.4, where R.sub.4 is as defined below;R.sub.3 represents hydroxy, or when R.sub.a is hydrogen, C.sub.1 -C.sub.8 alkoxy, --NR.sub.5 R.sub.6, where R.sub.5 and R.sub.6 are as defined below, or an aminocarboxylic acid residue derived by removal of an hydrogen atom from the amino moiety of an L-aminocarboxylic acid;each R.sub.4, independently, represents C.sub.2 -C.sub.
    Type: Grant
    Filed: August 21, 1981
    Date of Patent: November 29, 1983
    Assignee: Merrell Toraude et Compagnie
    Inventors: Philippe Bey, Fritz Gerhart, Michel Jung, Daniel Schirlin
  • Patent number: 4413141
    Abstract: This invention relates to 2-(difluoromethyl)-2,5-diaminopentanoic acid, or a pharmaceutically acceptable acid addition salt thereof, and to the methods for the preparation and use thereof.
    Type: Grant
    Filed: September 17, 1982
    Date of Patent: November 1, 1983
    Assignee: Merrell Toraude et Compagnie
    Inventors: Philippe Bey, Michel Jung
  • Patent number: 4413012
    Abstract: 2-Amino-3-(3'-hydroxyphenyl)-3-butenoic acid or 2-amino-3-(3', 4'-dihydroxyphenyl)-3-butenoic acid can be used to treat depression either alone or in combination with an extracerebrally acting AADC inhibitor.
    Type: Grant
    Filed: May 26, 1982
    Date of Patent: November 1, 1983
    Assignee: Merrell Toraude et Compagnie
    Inventors: Michael G. Palfreyman, Ian A. McDonald
  • Patent number: 4405530
    Abstract: Certain .alpha.-(fluoromethyl or difluoromethyl)-.alpha.-aminoacetonitriles are prepared by treating the appropriate .alpha.-(fluoromethyl or difluoromethyl) ketimine magnesium halide with hydrogen cyanide or with an alkali metal cyanide or ammonium cyanide and a proton source. The products are useful as intermediates for making .alpha.-(fluoromethyl or difluoromethyl)-.alpha.-amino acids having pharmacological activity.
    Type: Grant
    Filed: November 16, 1981
    Date of Patent: September 20, 1983
    Assignee: Merrell Toraude et Compagnie
    Inventor: Fritz E. Gerhart
  • Patent number: 4375477
    Abstract: Beta-monofluoromethyl beta-alanine, beta-difluoromethyl beta-alanine and pharmaceutically acceptable esters and amides derived from the acid group, amides derived from the amine group, and salts thereof are novel compounds which inhibit .gamma.-aminobutyric acid transaminase (GABA-T).
    Type: Grant
    Filed: July 21, 1980
    Date of Patent: March 1, 1983
    Assignee: Merrell Toraude et Compagnie
    Inventors: Philippe Bey, Michael Jung, Fritz Gerhart
  • Patent number: 4374128
    Abstract: Novel compounds of the following general Formula I are useful pharmacological agents: ##STR1## wherein: Ado represents 5'-deoxyadenosin-5'-yl;R.sub.1 represents methyl, ethyl or, preferably hydrogen;R.sub.2 represents C.sub.1 -C.sub.8 alkylene;R.sub.4 represents C.sub.1 -C.sub.8 alkylene;R.sub.5 represents hydrogen, C.sub.1 -C.sub.6 alkyl or --R.sub.6 NHR.sub.7 ;R.sub.6 represents C.sub.1 -C.sub.4 alkylene; andR.sub.7 represents hydrogen or C.sub.1 -C.sub.6 alkyl;and pharmaceutically acceptable acid addition salts thereof.
    Type: Grant
    Filed: March 13, 1981
    Date of Patent: February 15, 1983
    Assignee: Merrell Toraude et Compagnie
    Inventors: Philippe Bey, Michel Jung, Michael Kolb, Charles Danzin