Patent · US Active

Method for preparing enantiomerically pure 4-pyrrolidino phenylbenzyl ether derivatives

US7501528B2 · kind B2 · utility

2Cited by

4References

18Claims

0Family size

Assignee

Hoffmann-La Roche Inc. · US

Inventors

Stefan Hildbrand · Riehen, CH
Bruno Lohri · Kaiseraugst, CH
Wolfgang Wostl · Weil am Rhein, DE

Key dates

Filing date	Mar 8, 2006
Grant date	Mar 10, 2009
Priority date	—
Expiry date	Sep 1, 2027

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07B2200/07
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

The invention relates to a method for preparing enantiomerically pure 4-pyrrolidinophenylbenzyl ether derivatives of formula I:wherein R1, R21, R22, R23, R24 and n are as defined in the description and claims and to intermediates useful in the method of the invention as well as salts thereof.

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