Acetic Anhydride → (5alpha,14alpha)-3-Methoxy-17-methyl-6-oxo-4,5-epoxymorphinan-14-yl acetate

Participants

Reaction Steps

The noroxycodone used as starting material for Method II is prepared from oxycodone by the following steps: ##STR13## Oxycodone is refluxed with acetic anhydride to yield 14-acetyloxycodone. This product is reacted with cyanogen bromide to yield 14-acetyloxy-17-cyano-7,8-dihydronorcodone which is in turn converted to noroxycodone by reaction with hydrogen chloride. The oxycodone starting material is prepared according to M. Freund and E. Speyer, J. fur Praktische Chemie, 94, 135-137 (1916), the disclosure of which is hereby incorporated by reference.

Provenance & Evidence