Process for making desvenlafaxine

Details Process for making desvenlafaxine Process for making desvenlafaxine

2006-12-20

2009-02-17

Barts, Samuel A (Department: 1621)

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

Organic compounds

Amino nitrogen containing

Reexamination Certificate

active

07491848

ABSTRACT:
Desvenlafaxine is formed from venlafaxine by the use of a demethylating agent comprising a metal sulfide, such as sodium sulfide, and optionally selenium.

REFERENCES:
patent: 4535186 (1985-08-01), Husbands et al.
patent: 5043466 (1991-08-01), Shepard
patent: 112669 (1983-07-01), None
patent: WO 00/32555 (2000-06-01), None
patent: WO 00/32556 (2000-06-01), None
patent: WO 00/59851 (2000-10-01), None
patent: WO 03/48104 (2001-04-01), None
patent: WO 02/64543 (2002-08-01), None

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