Patents by Inventor Heinrich Thaler

Heinrich Thaler 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).

  • Cephalosporin intermediate products
    Patent number: 5585485
    Abstract: A cephalosporin intermediate of the formula ##STR1## where R.sub.3 is carboxyl, carboxylate, or a carboxylic acid ester group and,R.sub.8 and R.sub.9 are each independently hydrogen, halogen,(C.sub.1-4) alkyl, hydroxy, carboxamido,(C.sub.1-4) alkoxycarbonyl, amino,mono- (C.sub.1-4) alkylamino, di- (C.sub.1-4) alkylamino, ortogether are a 5 or 6-membered carbocyclic ring or an alkali metal, alkaline earth metal, or acid addition salt thereof. Valuable cephalosporin antibiotics can be produced from the cephalosporin intermediate products of formula I.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: December 17, 1996
    Assignee: Biochemie Gesellschaft m.b.h.
    Inventors: Gerd Ascher, Hubert Sturm, Heinrich Thaler, Werner Veit
  • 2-(2-aminothiazol-4-yl)-2-oxoacetic acid derivatives
    Patent number: 5484928
    Abstract: Compound of formula IVe ##STR1## where Het is 2-pyridyl or 2-benzothiazolyl, are useful as acylating agents in preparing 7-[2-(2-amino-4-thiazol)-2-oxoacetyl]-cephalosporin intermediates.
    Type: Grant
    Filed: April 30, 1993
    Date of Patent: January 16, 1996
    Assignee: Biochemie Gesellschaft m.b.H.
    Inventors: Hubert Sturm, Heinrich Thaler, Werner Veit
  • Deacylation of amides
    Patent number: 4562253
    Abstract: De-acylation of Penicillins and Cephalosporins to obtain the corresponding 6-aminopenicillanic acid or 7-aminocephalosporanic acid by the imino halide/imino ether process using long chain bases.
    Type: Grant
    Filed: August 3, 1983
    Date of Patent: December 31, 1985
    Assignee: Biochemie Gesellschaft m.b.H.
    Inventors: Bernhard C. Prager, Peter Punk, Heinrich Thaler
  • Method for producing 6,7-dimethoxy-4-amino-2-[4-(2-furoyl)-1-piperazinyl] q u
    Patent number: 4271300
    Abstract: An improved method is disclosed for producing antihypertensively active 6,7-dimethoxy-4-amino-2-[4-(2-furoyl)-1-piperazinyl] quinazoline hydrochloride, viz prazosine hydrochloride, by reacting methyl-N-(3,4-dimethoxy-6-cyano-phenyl)-[4-(2-furoyl)-1-piperazinyl]thiofo rmamidate with a large excess of ammonium chloride.
    Type: Grant
    Filed: January 9, 1980
    Date of Patent: June 2, 1981
    Assignee: Orion-yhtyma Oy
    Inventors: Erkki J. Honkanen, Aino K. Pippuri, Pekka J. Kairisalo, Heinrich Thaler, Maija K. Koivisto, Sirpa A. Tuomi