The present invention relates to an improved process for O-demethylating methoxy substituted morphinan-6-one derivatives using AlCl3 as a demethylating agent in a reaction-inert solvent having a water content ranging from 0.1% wt to 0.8% wt. 10.
本发明涉及一种在含
水量为 0.1% wt 至 0.8% wt 的反应惰性溶剂中使用
AlCl3 作为脱甲基剂对甲氧基取代的
吗啡烷-6-酮衍
生物进行 O-脱甲基化的改进工艺。 10.