Patent · US Expired

Process for preparation of clonidine derivatives

US5684156A · kind A · utility

1Cited by
11References
23Claims
0Family size

Inventors

Key dates

Filing dateAug 31, 1995
Grant dateNov 4, 1997
Priority date—
Expiry dateAug 31, 2015

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D243/04
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

A novel process for preparing clonidine derivatives has been discovered which is shorter, less expensive and safer than previously known methods. A new thiourea complex has also been discovered which can be directly cyclized to produce the corresponding heterocyclic product.

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