Acetic acid (8R,9S,10S,13S,14S,17S)-17-acetoxy-4,4,13-trimethyl-3-oxo-1,2,3,4,7,8,9,11,12,13,14,15,16,17-tetradecahydro-cyclopenta[a]phenanthren-10-ylmethyl ester 在
palladium on activated charcoal
氢气 作用下,
以
乙醇 为溶剂,
生成
Acetic acid (5S,8R,9S,10S,13S,14S,17S)-17-acetoxy-4,4,13-trimethyl-3-oxo-hexadecahydro-cyclopenta[a]phenanthren-10-ylmethyl ester