THE USE OF ORIPAVINE AS A STARTING MATERIAL FOR BUPRENORPHINE

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 yiel...

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Hauptverfasser: MANNINO, ANTHONY, HILL, LLOYD, P, BUEHLER, HENRY, J, HOEFGEN, ERIK, R
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung: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.