Patent · US Expired

Process for the preparation of esters of N-blocked penicillin acids which comprises reacting the acid or a salt thereof with a primary amine and a nitrosating agent

US3960843A · kind A · utility

0Cited by

1References

6Claims

0Family size

Assignee

Glaxo Laboratories Limited

Inventors

Alan Long · Flowery Branch, US
Derek Walker · Jamesville, US
David T. Eastlick
Harry C. Stables

Key dates

Filing date	Jul 9, 1973
Grant date	Jun 1, 1976
Priority date	—
Expiry date	Jul 9, 1993

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D499/00
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process is described for the preparation of esters of N-blocked amino acids (such as penicillins or cephalosporins) wherein the amino acid or a salt thereof is reacted with a primary amine and nitrosating agent.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.