Patent · US Expired

Aminomethanobenzazocine intermediates

US4032529A · kind A · utility

38Cited by
1References
21Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 24, 1975
Grant dateJun 28, 1977
Priority date—
Expiry dateNov 24, 1995

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07D221/22
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

N-Alkylated-8-aminated-2,6-methano-3-benzazocines, useful as strong analgesics, are prepared by one route comprising reduction of 8-nitro intermediates or by another route comprising Birch type reduction of 8-methoxy intermediates followed by dehydration-rearrangement of the oximes of the resulting 8-oxo intermediates.

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