Patent · US Expired

Intermediates of peripherally selective N-carbonyl-3,4,4-trisubstituted piperidine opioid antagonists

US5159081A · kind A · utility

114Cited by
12References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 29, 1991
Grant dateOct 27, 1992
Priority date—
Expiry dateMar 29, 2011

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D211/14
  • WIPO fieldPharmaceuticals
  • WIPO sectorChemistry

Abstract

Intermediates of N-carbonyl-3,4,4-substituted piperidines are provided which are useful in the preparation of peripheral opioid antagonists.

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