Patents by Inventor Gerd Buschmann

Gerd Buschmann 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: 4924004
    Abstract: New 1-phenyl-2-aminocarbonylindole compounds are described which have the general formula I ##STR1## where R.sub.1 is a hydrogen atom, or a lower alkyl, alkenyl, cycloalkyl or cycloalkylalkyl radical, R.sub.2 is a hydrogen atom or a lower alkyl radical, R.sub.3 is a hydrogen or halogen atom, or a lower alkyl, hydroxyl or lower alkoxy radical, R.sub.4 is a hydrogen or halogen atom, or a lower alkyl, hydroxyl or lower alkoxy radical, or, if R.sub.3 is a hydrogen atom, R.sub.4 may be a nitro or trifluoromethyl radical, or R.sub.3 and R.sub.4 together denote a methylenedioxy or ethylenedioxy radical, R.sub.5 has the meanings given for R.sub.3, R.sub.6 has the meanings given for R.sub.4, R.sub.7 is a hydrogen atom or, if R.sub.5 and R.sub.6 are lower alkoxy radicals, R.sub.7 may also be a lower alkoxy radical, R.sub.8 and R.sub.9 are each a hydrogen atom or a lower alkyl radical or, together with the nitrogen atom, form a heterocyclic group, and Z is a alkylene chain which is optionally substituted by hydroxyl.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: May 8, 1990
    Assignee: Kali-Chemie Pharma GmbH
    Inventors: Heinrich-Wilhelm Ohlendorf, Wilhelm Kaupmann, Ulrich Kuehl, Gerd Buschmann, Stephen Magda
  • Patent number: 4912113
    Abstract: 3,7-Diazabicyclo[3,3,1]nonane compounds having valuable heart rate-affecting pharmacological properties corresponding to the Formula I: ##STR1## wherein R.sup.1 is alkyl, cycloalkylalkyl or benzyl,R.sup.2 is lower alkyl,R.sup.3 is lower alkyl, orR.sup.2 and R.sup.3 together form an alkylene chain, andR.sup.4 represents a benzhydryl group, optionally substituted by halogen, lower alkoxy, lower alkyl, hydroxy or trifluoromethyl, or a cinnamyl group optionally substituted by halogen, lower alkyl, lower alkoxy, hydroxy, nitro or trifluoromethyl.
    Type: Grant
    Filed: September 2, 1988
    Date of Patent: March 27, 1990
    Assignee: Kali-Chemie Pharma GmbH
    Inventors: Uwe Schon, Wolfgang Kehrbach, Gerd Buschmann, Ulrich Kuhl, Dieter Ziegler
  • Patent number: 4879299
    Abstract: Compounds of Formula (I)S--(CH2)n--Atm (I)in whichS is a 17-spartein nucleus,n is 0 or 1, andA is 2-furyl, 2-thienyl or 2-(N-loweralkyl)pyrrylwhen n=0, or3-furyl or 3-thienyl when n=1, or pyridyl, or a phenyl group of Formula (II) ##STR1## in which at least one of R.sub.1, R.sub.2 and R.sub.3 is a defined substituent other than hydrogen. Such compounds and corresponding compounds in which A is an unsubstituted phenyl group are useful in pharmaceutical compositions as heart affecting agents. Methods of preparing such compounds and pharmaceutical compositions are disclosed. Also described is the use of such compounds or compositions, particularly compounds or compositions with positive inotropic activity, to treat various heart conditions.
    Type: Grant
    Filed: December 18, 1987
    Date of Patent: November 7, 1989
    Assignee: Kali-Chemie Pharma GmbH
    Inventors: Uwe Schoen, Wolfgang Kehrbach, Bernd Hachmeister, Gerd Buschmann, Ulrich G. Kuehl
  • Patent number: 4814345
    Abstract: Novel 1-phenyl-2-aminocarbonylindole compounds are disclosed having the general formula I ##STR1## wherein R.sub.1 is an aliphatic or aromatic acyl group or an optionally substituted benzyl group; R.sub.2 is hydrogen or a lower alkyl radical; R.sub.3 is a hydrogen, a halogen, a lower alkyl radical, or a lower alkoxy radical; R.sub.4 is hydrogen, a halogen, a lower alkyl radical, or a lower alkoxy radical; R.sub.5 has the significance given R.sub.3 ; R.sub.6 has the significance given for R.sub.4, or R.sub.6 is nitro or trifluoromethyl; R.sub.7 and R.sub.8 each represent hydrogen or a lower alkyl radical, or together with a nitrogen atom form a heterocyclic group; and Z signifies an alkylene chain optionally substituted by hydroxy or acyloxy. The compounds have pharmacological, in particular antiarrhythmic, properties.
    Type: Grant
    Filed: November 20, 1987
    Date of Patent: March 21, 1989
    Assignee: Kali-Chemie Pharma GmbH
    Inventors: Heinrich-Wilhelm Ohlendorf, Wilhelm Kaupmann, Ulrich Kuhl, Gerd Buschmann, Stephen J. Magda
  • Patent number: 4803198
    Abstract: New 1-phenyl-2-aminocarbonylindole compounds are described which have the general formula I ##STR1## where R.sub.1 is a hydrogen atom, or a lower alkyl, alkenyl, cycloalkylalkyl radical, R.sub.2 is a hydrogen atom or a lower alkyl radical, R.sub.3 is a hydrogen or halogen atom, or a lower alkyl, hydroxyl or lower alkoxy radical, R.sub.4 is a hydrogen or halogen atom, or a lower alkyl, hydroxyl or lower alkoxy radical, or, if R.sub.3 is a hydrogen atom, R.sub.4 may be a nitro or trifluoromethyl radical, or R.sub.3 and R.sub.4 together denote a methylenedioxy or ethylenedioxy radical, R.sub.5 has the meanings given for R.sub.3, R.sub.6 has the meanings given for R.sub.4, R.sub.7 is a hydrogen atom or, if R.sub.5 and R.sub.6 are lower alkoxy radicals, R.sub.7 may also be a lower alkoxy radical, R.sub.8 and R.sub.9 are each a hydrogen atom or a lower alkyl radical or, together with the nitrogen atom, form a heterocyclic group, and Z is an alkylene chain which is optionally substituted by hydroxyl.
    Type: Grant
    Filed: July 15, 1986
    Date of Patent: February 7, 1989
    Assignee: Kali-Chemie Pharma GmbH
    Inventors: Heinrich-Wilhelm Ohlendorf, Wilhelm Kaupmann, Ulrich Kuehl, Gerd Buschmann, Stephen J. Magda
  • Patent number: 4755520
    Abstract: Compounds of Formula (I)S--(CH.sub.2).sub.n --A (I)in whichS is a 17-spartein nucleusn is 0 or 1and A is 2-furyl, 2-thienyl or 2-(N-alkyl)pyrryl when n=0, or 3-furyl or 3-thienyl when n=1, or pyridyl or a phenyl group of Formula (II) ##STR1## in which at least one of R.sub.1, R.sub.2 and R.sub.3 is a defined substituent other than hydrogen. Such compounds and corresponding compounds in which A is an unsubstituted phenyl group are useful in pharmaceutical compositions as heart affecting agents. Methods of preparing such compounds and pharmaceutical compositions are also disclosed.
    Type: Grant
    Filed: June 17, 1986
    Date of Patent: July 5, 1988
    Assignee: Kali-Chemie Pharma GmbH
    Inventors: Uwe Schon, Wolfgang Kehrbach, Bernd Hachmeister, Gerd Buschmann, Ulrich G. Kuhl
  • Patent number: 4742172
    Abstract: 3,7-diaza bicyclo-(3,3,1)-nonane compounds of the formula ##STR1## in which substituents R.sub.1, R.sub.2, R.sub.3, R.sub.4, Z.sub.1, and Z.sub.2 indicate the substituents as they are given in the description of the invention, can be employed to produce certain pharmaceutically useful compounds.
    Type: Grant
    Filed: May 27, 1987
    Date of Patent: May 3, 1988
    Assignee: Kali-Chemie Pharma GmbH
    Inventors: Uwe Schoen, Bernd Hachmeister, Wolfgang Kehrbach, Ulrich Kuehl, Gerd Buschmann
  • Patent number: 4714709
    Abstract: N-(2,10-dioxa-tricyclo-[5,3,1,0.sup.3,8 ]-undecane-5-yl)-tryptamine compounds corresponding to the formula ##STR1## with blood-pressure lowering effects, a method of producing such compounds and pharmaceutical compositions incorporating such compounds, wherein R.sub.1 is hydrogen, a benzyl or lower alkyl group; R.sub.2 is a lower alkyl or lower alkanoyl group; R.sub.3 is hydrogen or a lower alkyl group; R.sub.4 is hydrogen, benzyloxy, hydroxy or a lower alkoxy group; R.sub.5 is hydrogen, benzyloxy, hydroxy or a lower alkoxy group; and A and B either are both hydrogen or together represent a bond between their respective carbons.
    Type: Grant
    Filed: September 24, 1984
    Date of Patent: December 22, 1987
    Assignee: Kali-Chemie Pharma GmbH
    Inventors: Peter W. Thies, Samuel David, Ulrich Kuehl, Gerd Buschmann, Peter Flecker
  • Patent number: 4695566
    Abstract: 3-(aminoalkylaminocarbonylmethoxy)-5-phenylpyrazole compounds corresponding to the formula: ##STR1## in which R.sub.1, R.sub.2, R.sub.5, R.sub.6, R.sub.7, and R.sub.8 and R.sub.9 may be hydrogen or lower alkyl groups, or R.sub.5 with R.sub.6 and/or R.sub.8 with R.sub.9 may also form specified cyclic groups, R.sub.3 and R.sub.4 may be hydrogen, halogen, lower alkyl, lower alkoxy, trifluoromethyl, nitro, hydroxy or alkylene dioxy, and Z represents an alkylene chain or the 2-hydroxypropylene chain. The compounds possess pharmacological, in particular antiarrhythmic, properties.
    Type: Grant
    Filed: July 2, 1985
    Date of Patent: September 22, 1987
    Assignee: Kali-Chemie Pharma GmbH
    Inventors: Henning Heinemann, Wolfgang Kehrbach, Uwe Schoen, Gerd Buschmann, Ulrich Kuhl
  • Patent number: 4554274
    Abstract: New quaternary derivatives of 10-bromoajmaline and 10-bromoisoajmaline are disclosed which exhibit antiarrhythmic and adrenolytic properties and which have the formula I ##STR1## wherein R represents a carbon-attached organic group containing 1 to 10 carbon atoms and A.sup.- represents an acid anion as well as pharmaceutical formulations thereof and processes and intermediates for their preparation.
    Type: Grant
    Filed: May 31, 1984
    Date of Patent: November 19, 1985
    Assignee: Kali-Chemie Pharma GmbH
    Inventors: Wolfgang Kehrbach, Joachim Wegener, Ulrich Kuehl, Renke Budden, Gerd Buschmann
  • Patent number: 4552877
    Abstract: New N.sub.b -quaternary 10-bromosandwicine and 10-bromoisosandwicine derivatives are disclosed which exhibit antiarrhythmic properties and adrenolytic properties and which have the formula I ##STR1## wherein R represents a carbon-attached organic group containing 1 to 10 carbon atoms and A.sup..crclbar. represents an acid anion, as well as pharmaceutical formulations thereof and processes and intermediates for their preparation.
    Type: Grant
    Filed: May 31, 1984
    Date of Patent: November 12, 1985
    Assignee: Kali-Chemie Pharma GmbH
    Inventors: Wolfgang Kehrbach, Joachim Wegener, Ulrich Kuehl, Renke Budden, Gerd Buschmann
  • Patent number: 4550112
    Abstract: Novel 3,7-diaza bicyclo-(3,3,1)-nonane compounds are described which are represented by the formula: ##STR1## wherein Z.sub.1 and Z.sub.2 each denotes hydrogen,R.sub.1 and R.sub.2 each denotes (A) a substituent which contains up to 12 carbon atoms and which is selected from the group consisting of alkyl, alkenyl, and alkinyl, or (B) a cycloalkyl group containing 3 to 6 carbon atoms which is attached to the nitrogen atom directly or by an alkylene group containing 1 to 3 carbon atoms, andR.sub.3 and R.sub.4 each denotes an alkyl group with up to 7 carbon atoms, or both together form an alkylene chain represented by the formula --(CH.sub.2).sub.n --, wherein n is an integer ranging between about 3 and 6, such that the substituents R.sub.1, R.sub.2, R.sub.3, and R.sub.4 together contain at least 5 carbon atoms. Also described are processes of producing said compounds, pharmaceutical compositions containing compounds of Formula I, and methods of preparing and using said compositions.
    Type: Grant
    Filed: September 16, 1983
    Date of Patent: October 29, 1985
    Assignee: Kali-Chemie Pharma GmbH
    Inventors: Uwe Schoen, Bernd Hachmeister, Wolfgang Kehrbach, Ulrich Kuehl, Gerd Buschmann
  • Patent number: 4451468
    Abstract: Acidiferous salts of 17-.beta.-n-pentyl sparteine are crystallized out of a solution of 17-.beta.-n-pentyl sparteine and a dicarboxylic acid selected from the group consisting of tartaric acid, fumaric acid or mixtures thereof. The novel acidiferous pentyl sparteine salts are employed in pharmaceutical compositions for the treatment of cardiac disorders and in venous therapeutical applications, and process improved stability and pharmacological properties.
    Type: Grant
    Filed: September 30, 1981
    Date of Patent: May 29, 1984
    Assignee: Kali-Chemie Pharma GmbH
    Inventors: Bernd Hachmeister, Wolfgang Milkowski, Ulrich Kuhl, Gerd Buschmann, Renke Budden
  • Patent number: 4415577
    Abstract: Disclosed are a novel dimeric sparteine derivative, the 17S,17'S-bissparteine, and its physiologically compatible acid addition salts. Said compounds are produced by dimerization of 17-hydroxy sparteine or 17-dehydrosparteine salts by means of activated magnesium or an alkali metal. Pharmaceutical compositions containing said novel dimeric sparteine derivatives and their preparation are also described.
    Type: Grant
    Filed: August 19, 1981
    Date of Patent: November 15, 1983
    Assignee: Kali-Chemie Pharma GmbH
    Inventors: Bernd Hachmeister, Wolfgang Kehrbach, Ulrich Kuehl, Gerd Buschmann