Patents by Inventor Kurt Stach

Kurt Stach has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4436742
    Abstract: New amine derivatives of 4-hydroxy-2,1,3-benzthiadiazoles of the formula: ##STR1## wherein R is straight-chained or branched alkyl and the pharmacologically compatible salts thereof, that are markedly effected as inhibitors of adrenogenic .beta.-receptors and thus useful for the treatment and prophylaxis of cardiac and circulatory diseases.
    Type: Grant
    Filed: November 20, 1980
    Date of Patent: March 13, 1984
    Assignee: Boehringer Mannheim GmbH
    Inventors: Erich Fauland, Wolfgang Kampe, Kurt Stach, Wolfgang Bartsch, Egon Roesch
  • Patent number: 4243807
    Abstract: 4-Phenoxymethyl-piperidines of the formula ##STR1## wherein R is hydrogen, halogen, nitro, lower alkyl or lower alkoxy, in the form of the free base or an acid addition salt, are provided and they are useful as intermediates in the production of anti-hypertensive agents through condensation with (a) propyl chloride and then with an adenine, or (b) a propyl indole.
    Type: Grant
    Filed: November 1, 1976
    Date of Patent: January 6, 1981
    Assignee: Boehringer Mannheim GmbH
    Inventors: Walter-Gunar Friebe, Max Thiel, Kurt Stach, deceased, by Werner Plattner, administrator
  • Patent number: 4238506
    Abstract: Phenyl-alkane-carboxylic acids of the formula ##STR1## wherein A is an aryl, aralkyl or arylvinyl radical optionally substituted by hydroxy, halogen, trifluoromethyl, alkyl, alkylthio, alkoxy, alkenyloxy, alkoxyalkoxy, alkyl-substituted amino, aryloxy or alkoxy-substituted aryloxy, or is an aryloxyalkyl or arylthioalkyl radical, or a heterocyclic ring system optionally substituted by halogen, alkyl or alkoxy,Y is a valency bond or an unbranched or branched lower alkylene radical containing up to 3 carbon atoms,X is a straight or branched, saturated or unsaturated divalent aliphatic hydrocarbon radical containing 2 to 8 carbon atoms, there being at least 2 carbon atoms between the benzene ring and the carboxyl group, andR is a hydrogen atom or a lower alkyl radical, as well as physiologically compatible salts, esters and amides thereof, exhibit hypoglycaemic and hypolipidaemic activity.
    Type: Grant
    Filed: June 29, 1978
    Date of Patent: December 9, 1980
    Assignee: Boehringer Mannheim GmbH
    Inventors: Kurt Stach, deceased, Elmar Bosies, Ruth Heerdt, Hans-Frieder Kuhnle, Felix H. Schmidt
  • Patent number: 4229464
    Abstract: New aminopropanol compounds of the formula ##STR1## wherein R is lower alkyl, cycloalkyl or alkylthioalkyl,R.sub.1 is hydrogen or lower alkyl, hydroxyalkyl, pivaloyloxyalkyl, alkoxyalkyl, alkoxycarbonyl, carboxyl or --CONR.sub.3 R.sub.4, in which R.sub.3 and R.sub.4 which can be the same or different, represent hydrogen or lower alkyl, andR.sub.2 is lower alkyl, hydroxyalkyl, alkoxyalkyl or pivaloyloxyalkyl or, when R is alkylthioalkyl or R.sub.1 is pivaloyloxyalkyl, R.sub.2 can also be hydrogen and the pharmacologically acceptable salts thereof; are outstandingly effective in the treatment or prophylaxis of cardiac and circulatory diseases.
    Type: Grant
    Filed: September 18, 1978
    Date of Patent: October 21, 1980
    Assignee: Boehringer Mannheim GmbH
    Inventors: Wolfgang Kampe, Kurt Stach, deceased, by Werner Plattner, administrator, Max Thiel, Wolfgang Bartsch, Karl Dietmann, Egon Roesch, Wolfgang Schaumann
  • Patent number: 4172136
    Abstract: New 3-nitropyrazole compounds of the formula: ##STR1## wherein R.sub.1 is lower alkyl;R.sub.2 is hydrogen or lower alkyl;R.sub.3 is cyano, carboxyl or lower alkoxycarbonyl or the radical --CO-NR.sub.4 R.sub.5, in whichR.sub.4 is hydrogen or hydroxyl, carbamoyl, alkylcarbamoyl, dialkylcarbamoyl, thiocarbamoyl, ureido, thioureido, hydroxyphenyl, picolyl or is a lower alkyl, alkenyl or cycloalkyl radical substituted, if desired, by a cyano, hydroxyl, pyrrolidino, piperidino, amino, lower alkylamino, lower dialkylamino or lower acylamino substituent andR.sub.5 is a hydrogen atom or a lower alkyl radical orR.sub.4 and R.sub.5 together represent a lower alkylene bridge;And the pharmacologically compatible salts thereof are outstandingly effective as anti-microbial agents, particularly systemically and in the urinary tract.
    Type: Grant
    Filed: March 23, 1978
    Date of Patent: October 23, 1979
    Assignee: Boehringer Mannheim GmbH
    Inventors: Herbert Berger, Rudi Gall, Kurt Stach, deceased, Max Thiel, Wolfgang Vomel
  • Patent number: 4152446
    Abstract: New aminopropanol compounds of the formula ##STR1## wherein R is lower alkyl, cycloalkyl or alkylthioalkyl,R.sub.1 is hydrogen or lower alkyl, hydroxyalkyl, pivaloyloxyalkyl, alkoxyalkyl, alkoxycarbonyl, carboxyl or --CONR.sub.3 R.sub.4, in which R.sub.3 and R.sub.4 which can be the same or different, represent hydrogen or lower alkyl, andR.sub.2 is lower alkyl, hydroxyalkyl, alkoxyalkyl or pivaloyloxyalkyl or, when R is alkylthioalkyl or R.sub.1 is pivaloyloxyalkyl, R.sub.2 can also be hydrogen and the pharmacologically acceptable salts thereof;Are outstandingly effective in the treatment or prophylaxis of cardiac and circulatory diseases.
    Type: Grant
    Filed: June 10, 1977
    Date of Patent: May 1, 1979
    Assignee: Boehringer Mannheim GmbH
    Inventors: Wolfgang Kampe, Kurt Stach, Max Thiel, Wolfgang Bartsch, Karl Dietmann, Egon Roesch, Wolfgang Schaumann
  • Patent number: 4151303
    Abstract: Novel phenoxyalkylcarboxylic acid compounds of the formula ##STR1## wherein A is aryl, aryloxy, substituted aryl or substituted aryloxy, wherein the substituents are selected from lower alkyl, lower alkoxy, halogen and haloalkyl;B is a straight-chained or branched, saturated or unsaturated hydrocarbyl containing up to 5 carbon atoms;N is 1, 2 or 3 andR.sub.1, r.sub.2 and R.sub.3, which may be the same or different, are hydrogen or lower alkyl;And the pharmacologically compatible salts thereof; have been found to be outstandingly effective in depressing serum-lipid and triglycerides in the serum of mammals.
    Type: Grant
    Filed: September 1, 1976
    Date of Patent: April 24, 1979
    Assignee: Boehringer Mannheim GmbH
    Inventors: Ernst-Christian Witte, Hans P. Wolff, Kurt Stach, deceased, Wolfgang Schaumann, Karlheinz Stegmeier
  • Patent number: 4113871
    Abstract: Phenyl-alkane-carboxylic acids of the formula ##STR1## wherein A is an aryl, aralkyl or arylvinyl radical optionally substituted by hydroxy, halogen, trifluoromethyl, alkyl, alkylthio, alkoxy, alkenyloxy, alkoxyalkoxy, alkyl-substituted amino, aryloxy or alkoxy-substituted aryloxy, or is an aryloxyalkyl or arylthioalkyl radical, or a heterocyclic ring system optionally substituted by halogen, alkyl or alkoxy,Y is a valency bond or an unbranched or branched lower alkylene radical containing up to 3 carbon atoms,X is a straight or branched, saturated or unsaturated divalent aliphatic hydrocarbon radical containing 2 to 8 carbon atoms, there being at least 2 carbon atoms between the benzene ring and the carboxyl group, andR is a hydrogen atom or a lower alkyl radical, as well as physiologically compatible salts, esters and amides thereof, exhibit hypoglycaemic and hypolipidaemic activity.
    Type: Grant
    Filed: April 8, 1976
    Date of Patent: September 12, 1978
    Assignee: Boehringer Mannheim GmbH
    Inventors: Kurt Stach, deceased, Elmar Bosies, Ruth Heerdt, Hans-Frieder Kuhnle, Felix Helmut Schmidt
  • Patent number: 4107299
    Abstract: 12-Epi-digoxins of the formula ##STR1## wherein R.sub.1 and R.sub.2 each independently is hydrogen or a lower alkanoyl or alkyl radical,R.sub.3 is hydrogen or a lower alkanoyl radical, andR.sub.4 is hydrogen or a lower alkyl, alkenyl or alkynyl radical,Are characterized by marked cardioactivity and therapeutic spectrum. They are produced by reduction of the corresponding 12-dehydrodigoxin.
    Type: Grant
    Filed: November 4, 1976
    Date of Patent: August 15, 1978
    Assignee: Boehringer Mannheim GmbH
    Inventors: Fritz Kaiser, Wolfgang Schaumann, Kurt Stach, deceased, by Werner Plattner, administrator, Wolfgang Voightlander
  • Patent number: 4105772
    Abstract: New 3-nitropyrazole compounds of the formula: ##STR1## wherein R.sub.1 is lower alkyl;R.sub.2 is hydrogen or lower alkyl;R.sub.3 is cyano, carboxyl or lower alkoxycarbonyl or the radical --CO--NR.sub.4 R.sub.5, in whichR.sub.4 is hydrogen or hydroxyl, carbamoyl, alkylcarbamoyl, dialkylcarbamoyl, thiocarbamoyl, ureido, thioureido, hydroxyphenyl, picolyl or is a lower alkyl, alkenyl or cycloalkyl radical substituted, if desired, by a cyano, hydroxyl, pyrrolidino, piperidino, amino, lower alkylamino, lower dialkylamino or lower acylamino substituent andR.sub.5 is a hydrogen atom or a lower alkyl radical orR.sub.4 and R.sub.5 together represent a lower alkylene bridge;And the pharmacologically compatible salts thereof, are outstandingly effective as anti-microbial agents, particularly systemically and in the urinary tract.
    Type: Grant
    Filed: November 22, 1976
    Date of Patent: August 8, 1978
    Assignee: Boehringer Mannheim GmbH
    Inventors: Herbert Berger, Rudi Gall, Kurt Stach, deceased, by Werner Plattner, administrator, Max Thiel, Wolfgang Vomel
  • Patent number: 4092416
    Abstract: Benzopyrones of the formula ##STR1## wherein R.sub.1 is a hydrogen or halogen atom or a hydroxyl, lower alkyl, alkoxy, alkylthio or trifluoromethyl radical,R.sub.2, r.sub.3, r.sub.4 and R.sub.5 each independently is hydrogen, a halogen atom, a hydroxyl radical, a lower alkyl or lower alkoxy radical, or a lower alkyl or lower alkoxy radical substituted by at least one of hydroxyl, halogen, mesyloxy or tosyloxy or by an oxirane, dioxane or dioxolane ring,A is a lower alkylene radical, andn is 0, 1 or 2,And salts thereof exhibit anti-allergic activity.
    Type: Grant
    Filed: December 1, 1976
    Date of Patent: May 30, 1978
    Assignee: Boehringer Mannheim GmbH
    Inventors: Werner Winter, Max Thiel, Kurt Stach, deceased, Androniki Roesch, by Werner Plattner, administrator, Wolfgang Schaumann
  • Patent number: 4087520
    Abstract: An L-3-(3,4-dihydroxyphenyl)-2-methyl-alanine peptide of the formula ##STR1## wherein A is an alkylene radical which can be substituted by a hydroxyl group or by a phenyl radical which optionally carries at least one hydroxyl group, andR is a hydrogen atom or a lower alkyl radical or a glycyl or alanyl radical,Or a pharmacologically compatible salt thereof. These compounds are outstanding in lowering blood pressure.
    Type: Grant
    Filed: March 9, 1976
    Date of Patent: May 2, 1978
    Assignee: Boehringer Mannheim GmbH
    Inventors: Franz Braun, Kurt Stach, deceased, by Werner Plattner, executor, Max Thiel, Gisbert Sponer, Karl Dietmann
  • Patent number: 4086347
    Abstract: 9-[3-(4-Phenoxymethylpiperidino)-propyl]-adenines of the formula ##STR1## wherein R.sub.1 is a hydrogen atom or a lower alkyl radical,R.sub.2 is a hydrogen atom, a ower alkyl radical optionally substituted by hydroxyl, or a cycloalkyl radical, orR.sub.1 and R.sub.2 together with the nitrogen atom to which they are attached form a heterocyclic ring, andR.sub.3 is a hydrogen atom, a halogen atom, a lower alkyl radical or a lower alkoxy radical,In the form of the free base or a salt thereof, exhibit anti-allergic, anti-inflammatory, anti-oedematous and anti-hypertensive activity.
    Type: Grant
    Filed: November 2, 1976
    Date of Patent: April 25, 1978
    Assignee: Boehringer Mannheim GmbH
    Inventors: Walter-Gunar Friebe, Max Thiel, Kurt Stach, deceased, by Werner Plattner, administrator, Otto-Henning Wilhelms, Erika VON Mullendorff, Gisbert Sponer
  • Patent number: 4076829
    Abstract: New aminopropanol compounds of the formula ##STR1## wherein R is lower alkyl, cycloalkyl or alkylthioalkyl,R.sub.1 is hydrogen or lower alkyl, hydroxyalkyl, pivaloyloxyalkyl, alkoxyalkyl, alkoxycarbonyl, carboxyl or --CONR.sub.3 R.sub.4, in which R.sub.3 and R.sub.4 which can be the same or different, represent hydrogen or lower alkyl, andR.sub.2 is lower alkyl, hydroxyalkyl, alkoxyalkyl or pivaloyloxyalkyl or, when R is alkylthioalkyl or R.sub.1 is pivaloyloxyalkyl, R.sub.2 can also be hydrogen andThe pharmacologically acceptable salts thereof; are outstandingly effective in the treatment or prophylaxis of cardiac and circulatory diseases.
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: February 28, 1978
    Assignee: Boehringer Mannheim GmbH
    Inventors: Wolfgang Kampe, Kurt Stach, Max Thiel, Wolfgang Bartsch, Karl Dietmann, Egon Roesch, Wolfgang Schaumann
  • Patent number: 4070373
    Abstract: Novel tricyclic aminoalkyl derivatives are disclosed which are characterized by valuable pharmacological activities and namely by cardiac and circulatory activities. The tricyclic aminoalkyl derivatives are compounds of the formula: ##STR1## wherein X is an oxygen or a sulfur atom, a saturated or unsaturated, straight chain or branched alkylene group containing up to 3 carbon atoms, an oxymethylene, thiamethylene or thiaethylene group or a valency bond, R.sub.1 is hydrogen, halogen, alkyl, alkoxy or trifluoromethyl, R.sub.2 is hydrogen or hydroxyl, R.sub.3 is hydrogen or together with R.sub.2 represents a further valency bond, R.sub.4 and R.sub.
    Type: Grant
    Filed: September 22, 1972
    Date of Patent: January 24, 1978
    Assignee: C.F. Boehringer & Soehne GmbH
    Inventors: Werner Winter, Max Thiel, Kurt Stach, deceased, by Werner Plattner, administrator, Wolfgang Schaumann, Karl Dietmann
  • Patent number: 4049811
    Abstract: Cycloalkano-quinolone derivatives having anti-microbial activity characterized by the formula: ##STR1## wherein one of R.sub.1 and R.sub.2 designates hydrogen, halogen, nitro, amino, hydroxyl, acylamino, acyloxy, alkoxy or aryloxy and the other taken together with R.sub.3 forms an alkylene bridge containing 2 to 6 carbon atoms, X is hydrogen, lower alkyl, which may be substituted by a member of the group consisting of halogen, hydroxyl, acyloxy, alkoxy, aryloxy, aralkyloxy, mercapto, alkylmercapto, arylmercapto, arylsulfonyl, and alkylsulfonyl, or X is unsubstituted alkenyl including alkadienyl, or alkynyl and Y is hydroxyl, amino or lower alkoxy, and the pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: April 12, 1976
    Date of Patent: September 20, 1977
    Assignee: Boehringer Mannheim G.m.b.H.
    Inventors: Herbert Berger, Alfred Rhomberg, Kurt Stach, Wolfgang Vomel, Winfriede Sauer
  • Patent number: 4033967
    Abstract: New cyclopenteno-quinolone derivatives of the formula ##STR1## wherein R is a saturated or unsaturated aliphatic hydrocarbyl, e.g., alkyl and alkenyl,X is hydrogen or alkyl, andY is halogen, azido, alkylthio, alkyl-sulfonyl, or nitrile or unsubstituted or substituted (e.g., alkyl mono or di-substituted) amino;And the pharmacologically compatible salts thereof; are outstandingly effective as bacteriostats in mammals.
    Type: Grant
    Filed: October 17, 1974
    Date of Patent: July 5, 1977
    Assignee: Boehringer Mannheim G.m.b.H.
    Inventors: Alfred Rhomberg, Herbert Berger, Kurt Stach, deceased, Werner Plattner, administrator, Wolfgang Vomel, Winfriede Sauer
  • Patent number: 4034096
    Abstract: New cyclopenteno-quinolone derivatives of the formula ##STR1## wherein R is a saturated or unsaturated aliphatic hydrocarbyl, e.g., alkyl and alkenyl,X is hydrogen or alkyl, andY is halogen, azido, alkylthio, alkyl-sulfonyl, or nitrile or unsubstituted or substituted (e.g., alkyl mono or di-substituted) amino;And the pharmacologically compatible salts thereof; are outstandingly effective as bacteriostats in mammals.
    Type: Grant
    Filed: July 14, 1975
    Date of Patent: July 5, 1977
    Assignee: Boehringer Mannheim G.m.b.H.
    Inventors: Alfred Rhomberg, Herbert Berger, Kurt Stach, deceased, by Werner Plattner, administrator, Wolfgang Vomel, Winfriede Sauer
  • Patent number: 4029783
    Abstract: New N-substituted 1-amino-3-phenoxy-propan-2-ol compounds of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are, individually, hydrogen or, taken together, represent a sulfur linkage, an ethylene radical or a valency bond;B is straight or branched chain alkylene or hydroxyalkylene of from 2 to 5 carbon atoms; andR.sub.3 is hydrogen or alkyl of up to 3 carbon atoms;And the physiologically compatible salts thereof; possess valuable cardiac and circulatory activity.
    Type: Grant
    Filed: December 8, 1975
    Date of Patent: June 14, 1977
    Assignee: Boehringer Mannheim G.m.b.H.
    Inventors: Fritz Wiedemann, Max Thiel, Kurt Stach, Karl Dietmann, Gisbert Sponer
  • Patent number: 4017539
    Abstract: New biguanide compounds of the formula: ##STR1## wherein A is saturated or unsaturated cycloaliphatic hydrocarbyl, and the physiologically compatible salts thereof; display outstanding anti-diabetic effectiveness in the treatment of diabetes mellitus, without showing the typical side effects of biguanide treatment, viz., lactacidosis.
    Type: Grant
    Filed: May 7, 1975
    Date of Patent: April 12, 1977
    Assignee: Boehringer Mannheim G.m.b.H.
    Inventors: Elmar Bosies, Kurt Stach, Felix Helmut Schmidt, Ruth Heerdt, Helmut Weber