(7R,8S,9S,13S,14S,17S)-7-Ethyl-13-methyl-11-vinyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthrene-3,11,17-triol 在
三乙基硅烷 、
三氟化硼乙醚 作用下,
以
乙醚 为溶剂,
生成 (7R,8S,9S,13S,14S,17S)-7-Ethyl-13-methyl-11-vinyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthrene-3,17-diol