[EN] PROCESS FOR OBTAINING 3,14-DIACETYLOXYMORPHONE FROM ORIPAVINE<br/>[FR] PROCÉDÉ D'OBTENTION DE 3,14-DIACÉTYLOXYMORPHONE À PARTIR D'ORIPAVINE
申请人:ALCALIBER INVESTIGACIÓN DESARROLLO E INNOVACIÓN S L
公开号:WO2017207519A1
公开(公告)日:2017-12-07
The present invention relates to a new process for obtaining 3,14-diacetyloxymorphone from oripavine, a process to transform the obtained 3,14-diacetyloxymorphone into a noroxymorphone and a process to transform said noroxymorphone into naloxone, naltrexone, nalbuphine, nalfurafine or nalmefene.
[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.
LOW ABUK OXYCODONE, ITS SALTS AND METHODS OF MAKING SAME
申请人:Johnson Matthey Public Limited Company
公开号:US20140206871A1
公开(公告)日:2014-07-24
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.
Use of Oripavine as a Starting Material For Buprenorphine
申请人:Mannino Anthony
公开号:US20080312441A1
公开(公告)日:2008-12-18
There is provided a method for the synthesis of norbuprenorphine, and ultimately buprenorphine, utilizing oripavine as the starting material. Conventional methods of producing buprenorphine utilize thebaine as the starting material, requiring an O-demethylation step, typically a low to moderate yield transformation. The present use of oripavine as a starting material does not require an O-demethylation step, since the oripavine molecule lacks an O-3 methyl group.