Patent · US Expired

6-Isocyanato-6-substituted penicillins

US3996235A · kind A · utility

1Cited by
1References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 10, 1975
Grant dateDec 7, 1976
Priority date—
Expiry dateApr 10, 1995

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.