Patent · US Expired

Process for preparing desacetoxycephalosporins

US3944545A · kind A · utility

8Cited by
4References
11Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 12, 1973
Grant dateMar 16, 1976
Priority date
Expiry dateApr 12, 1993

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07F7/10
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

A penicillin sulfoxide is heated in the presence of silylating agent to produce a novel silyl ester azetidine-2-sulfenate which, by treatment with acid, is converted to a desacetoxycephalosporin compound.

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