Patents Assigned to Biochemie
  • Cephalosporin derivative
    Patent number: 5138049
    Abstract: The invention relates to a nitrate of (6R,7R)-7-{[2-(2-amino-4-thiazolyl)]-2-oxoacetamido}-3-(1,2,3-thiadizol-5- yl)thiomethyl-3-cephem-4-carboxylic acid, a process for its production and its use.
    Type: Grant
    Filed: January 18, 1991
    Date of Patent: August 11, 1992
    Assignee: Biochemie
    Inventors: Gerd Ascher, Hubert Sturm
  • New process for producing cephalosporin antibiotics, and novel intermediates for use in such process and their production
    Patent number: 4767852
    Abstract: Process for the production of known 2-oximinoacetamido-3-cephem-4-carboxylic derivatives comprising acylation of 7-amino-3-cephem-4-carboxylic acid derivatives with novel 2-oximinoacetic acid thio esters, as well as such thioesters and their production.
    Type: Grant
    Filed: November 19, 1986
    Date of Patent: August 30, 1988
    Assignee: Biochemie
    Inventor: Gerd Ascher
  • Process for the production of penicillins
    Patent number: 4708825
    Abstract: The invention provides a novel method for producing phenylglycyl chloride hydrochlorides involving reaction of N-substituted phenylglycines with for example thionyl chloride and then gaseous hydrogen chloride, as well as certain novel starting materials for use in this process and certain end-products thereby produced.
    Type: Grant
    Filed: July 8, 1983
    Date of Patent: November 24, 1987
    Assignee: Biochemie
    Inventors: Gerd Ascher, Kurt Riedl
  • Pleuromutilin solvates
    Patent number: 4089891
    Abstract: The invention provides novel pleuromutilin solvates and a method of purifying pleuromutilin via such solvates.
    Type: Grant
    Filed: July 16, 1976
    Date of Patent: May 16, 1978
    Assignee: Biochemie
    Inventors: Franz Knauseder, Helmut Wagner