Patent · US Expired

Disulfide intermediate for cimetidine

US4374996A · kind A · utility

0Cited by
2References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 3, 1981
Grant dateFeb 22, 1983
Priority date—
Expiry dateJun 3, 2001

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D233/64
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

A process for preparing cimetidine by sulfur extrusion from N-cyano-N'-methyl-N"-[2-(5-methyl-4-imidazolylmethyldithio)ethyl]guanidine .

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