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.
                            提供了一种合成诺布派诺啡和最终
布洛芬的方法,利用奥利啡作为起始物质。常规合成
布洛芬的方法使用
吗啡为起始物质,需要进行O-去甲基化步骤,通常产率较低。利用奥利啡作为起始物质不需要进行O-去甲基化步骤,因为奥利啡分子缺少O-3甲基基团。