Patent · US Expired

Processes for the preparation of (R)-&agr;-(2,3-dimethoxyphenyl)-1-[2-(4-fluorophenyl)ethyl]-4-piperidinemethanol

US6713627B2 · kind B2 · utility

0Cited by

24References

15Claims

0Family size

Assignee

Aventis Pharmaceuticals Inc. · US

Inventors

Edward D. Daugs · Midland, US
Jonathan C. Evans · Midland, US
Hans-Wolfram Flemming · Usingen, DE
Thomas Hilpert · Schmitten, DE
Johannes Nicolaas Koek · De Bilt, NL
Frederick M. Laskovics · Cincinnati, US
Sandra K. Stolz-Dunn · Midland, US
Ian A. Tomlinson · Midland, US

Key dates

Filing date	Jan 11, 2002
Grant date	Mar 30, 2004
Priority date	—
Expiry date	Jan 13, 2022

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D211/22
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention provides various processes for the preparation of (R)-&agr;-(2,3-dimethoxyphenyl)-1-[2-(4-fluorophenyl)ethyl]-4-piperidinemethanol. These processes may be characterized by the following scheme:

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