[EN] PROCESS FOR THE SYNTHESIS AND PURIFICATION OF OXYCODONE<br/>[FR] PROCÉDÉ DE SYNTHÈSE ET DE PURIFICATION D'OXYCODONE
申请人:JOHNSON MATTHEY PLC
公开号:WO2012003468A1
公开(公告)日:2012-01-05
A method of preparing oxycodone includes forming 14-hydroxycodeine by reduction of 14-hydroxycodeinone and rearrangement of the 14-hydroxycodeine to form the oxycodone. During the reduction step, the ketone group of an undesirable contaminant precursor, 8, 14-dihydroxy-7,8-dihydrocodeinone, is reduced to a hydroxyl group thus forming a triol. This triol is substantially inert with respect to reforming 14- hydroxycodeinone and can be readily separated from oxycodone.