(8R,9S,10R,13S,14S,16R)-16-fluoro-6-(methoxyimino)-10,13-dimethyltetradecahydrospiro[cyclopenta[a]phenanthrene-17,2'-[1,3]dioxolan]-3(2H)-one 在
高氯酸 作用下,
以
氯仿 为溶剂,
反应 0.17h,
以77%的产率得到(8R,9S,10R,13S,14S,16R)-16-fluoro-6-(methoxyimino)-10,13-dimethyltetradecahydro-3H-cyclopenta[a]phenanthrene-3,17(2H)-dione