Patents by Inventor Klaus Perrey

Klaus Perrey 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).

  • N,N'-Disubstituted piperazine derivative
    Patent number: 4221793
    Abstract: A compound of the formula ##STR1## or its acid addition salt with a physiologically compatible acid, a process for its preparation by a reaction selected from the group consisting of(a) reacting N-benzyl-piperazine and 5-methoxycumarilic acid(a1) at an elevated temperature in the absence of a condensation agent,(a2) at a temperature of at least 15.degree. C. in the presence of a condensation agent;(b) reacting N-benzyl-piperazine with an activated derivative of 5-methoxy-cumarilic acid;(c) N-(5-methoxycumaroyl)-piperazine with a benzyl compound selected from the group consisting of benzyl halide, benzylalkyl sulfonate and benzyl-aryl sulfonate and a pharmaceutical composition containing said compounds.
    Type: Grant
    Filed: December 21, 1978
    Date of Patent: September 9, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rolf-Ortwin Weber, Klaus Perrey, Wolfrad von Rechenberg
  • Analgesic phosphinyl compounds and compositions
    Patent number: 4160828
    Abstract: A phosphinyl derivative of formula (I) ##STR1## wherein X is =CH-- or =N--,R.sup.1 is(a) phenyl radical,(b) a quinolyl radical,(c) one of the radicals (a) and (b) being substituted by at least one substituent selected from the group consisting of halogen, trifluoromethyl and 1 to 3 alkyl radicals having in total up to 4 carbon atoms,R.sup.2 is selected from the group consisting of a dialkyl-phosphinylalkyl radical and a dialkyl phosphinyl-hydroxyalkyl radical each of said radicals R.sup.2 having a total of from 3 to 7 carbon atomsAnd acid addition salts thereof, pharmaceutical preparations containing said derivatives.
    Type: Grant
    Filed: February 10, 1978
    Date of Patent: July 10, 1979
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Alfons Soder, Klaus Perrey
  • Phosphinyl compounds
    Patent number: 4091095
    Abstract: A phosphinyl derivative of formula ##STR1## wherein X is selected from the group consisting of a carbon atom with a hydrogen atom attached thereto and a nitrogen atom,R.sup.1 isA. a phenyl radical,B. a quinolyl radical,C. one of the radicals (a) and (b) being substituted by at least one substituent selected from the group consisting of halogen, trifluoromethyl and 1 to 3 alkyl radicals having in total up to 4 carbon atoms,R.sup.2 is selected from the group consisting of a dialkylphosphinylalkyl radical and a dialkyl phosphinyl-hydroxyalkyl radical each of said radicals R.sup.2 having a total of from 3 to 7 carbon atomsAnd acid addition salts thereof, pharmaceutical preparations containing said derivatives.
    Type: Grant
    Filed: July 6, 1976
    Date of Patent: May 23, 1978
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Alfons Soder, Klaus Perrey