Patent · US Expired

"Use of N-cyano-N'-methyl-N""-[2-(5-methyl-4-imidazolylmethyldithio)ethyl]guanidi ne in the preparation of cimetidine"

US4447621A · kind A · utility

0Cited by
2References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 21, 1982
Grant dateMay 8, 1984
Priority date—
Expiry dateOct 21, 2002

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.