Patent · US Expired

Isocyanocephalosporanates

US3936446A · kind A · utility

7Cited by
0References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 19, 1974
Grant dateFeb 3, 1976
Priority date—
Expiry dateFeb 19, 1994

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D499/21
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Intermediates useful in the preparation of compounds having a penam or cephem ring structure, particularly penicillins and cephalosporins, and their preparation.

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