Patent · US Expired

Process for the preparation of morphinans

US5994327A · kind A · utility

4Cited by

6References

28Claims

0Family size

Assignee

Astra AB · SE

Inventors

Helmut Schmidhammer · Innsbruck, AT
Peter Schwarz · Speyer, DE
Zhong-Yong Wei · ᐙᔂᓂᐲ Waswanipi, CA

Key dates

Filing date	Mar 13, 1997
Grant date	Nov 30, 1999
Priority date	—
Expiry date	Mar 13, 2017

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D489/08
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process for the preparation of 14-alkoxyindolomorphinans and 14-alkoxybenzofuranomorphinans is disclosed. The process facilitates the preparation of a large variety of 14-alkoxy substituted indolomorphinans and benzofuranomorphinans in which a 3-hydroxy substituent is present.

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