Acetic acid (7R,8S,9S,13S,14S,17S)-3-acetoxy-7-ethyl-13-methyl-11-oxo-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-17-yl ester 在
palladium on activated charcoal
三乙基硅烷 、
三氟化硼乙醚 、
氢气 作用下,
以
乙醚 为溶剂,
生成 (7R,8S,9S,11S,13S,14S,17S)-11-Ethyl-7,13-dimethyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthrene-3,17-diol