Process for preparing a piperidine derivative

Details Process for preparing a piperidine derivative Process for preparing a piperidine derivative

1994-08-09

1997-02-04

Ivy, C. Warren

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546223, C07D21156

Patent

active

055999387

ABSTRACT:
A process for the preparation of the compound of formula (I), a useful intermediate for the preparation of analgesic agents. ##STR1## which comprises reading a compound of formula (II) or an acid addition salt thereof ##STR2## with propionic anhydride and then treating the resultant product with methanol.

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patent: 4179569 (1979-12-01), Janssen
patent: 5019583 (1991-05-01), Feldman et al.
Feldman et al., J. Org. Chem., 1990, 55, 4207-4209.
Taber et al., J. Org. Chem., 1992, 57, 4037-4038.
Van Daele et al., Arzneim.-Forsch., 1976, 26(8), 1521-1531.

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