(3S,5S,8R,9S,10S,13S,14S)-10,13-dimethyl-3-((triisopropylsilyl)oxy)hexadecahydro-17H-cyclopenta[a]phenanthren-17-one 在
甲醇 、 sodium tetrahydroborate 作用下,
反应 1.0h,
以100%的产率得到(3S,5S,8R,9S,10S,13S,14S,17S)-10,13-dimethyl-3-((triisopropylsilyl)oxy)hexadecahydro-1H-cyclopenta[a]phenanthren-17-ol