Processes for preparing venlafaxine and venlafaxine...

Details Processes for preparing venlafaxine and venlafaxine... Processes for preparing venlafaxine and venlafaxine...

2009-06-04

2010-06-01

Witherspoon, Sikarl A (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

Reexamination Certificate

active

07728173

ABSTRACT:
A process for preparing venlafaxine in a high yield as well as processes for producing venlafaxine hydrochloride of form I having a very hight polymorphic purity are described.

REFERENCES:
patent: 0112669 (1984-07-01), None
patent: 0797991 (1997-10-01), None
patent: WO 02/45658 (2002-06-01), None
patent: WO 02/50017 (2002-06-01), None
patent: WO 03/050074 (2003-06-01), None
John P. Yardley, et al., 2-Phenyl-2-(1-hydroxycycloalkyl)ethylamine Derivatives: Synthesis and Antidepressant Activity, J. Med. Chem., vol. 33, p. 2899-2905 (1990).

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