6t-acetoxy-5c-methanesulfonyloxy-1,2-dimethoxy-12-methyl-(4br,11bc)-4b,5,6,11b,12,13-hexahydro-[1,3]dioxolo[4',5':4,5]benzo[1,2-c]phenanthridine 在
氢氧化钾 作用下,
反应 1.0h,
生成 (4bα,10bα,11β)-4b,5,6,10b,11,12-hexahydro-7,8,12-trimethoxy-5-methyl-2,3-methylenedioxybenzo
phenanthridine-11-ol