The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 23, 1977
Filed:
Sep. 22, 1975
Applicant:
Inventors:
Noritaka Hamma, Sakai, JA;
Masataka Fukumura, Kobe, JA;
Kaoru Maeshima, Takarazuka, JA;
Takenari Nakagome, Nishinomiya, JA;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JA;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2601 / ; 260983 ; 544 21 ; 544 24 ; 544 26 ; 544 28 ; 544 29 ; 544 30 ; 544 16 ;
Abstract
An improved process for producing a peptide and a cephalosporin which comprises treating a phosphoramide derivative of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are each an alkyl group, a cycloalkyl group, an aryl group or an aralkyl group, and A.sub.1 is a peptide residue or a cephalosporin residue, with a phosphorus acid to produce a peptide or a cephalosporin of the formula A.sub.1 --NH.sub.2 wherein A.sub.1 is as hereinbefore defined.