Acetic acid (S)-1-((3S,8S,9S,10S,13S,14S,17S)-3,17-diacetoxy-13-methyl-1,2,3,4,7,8,9,11,12,13,14,15,16,17-tetradecahydro-cyclopenta[a]phenanthren-10-yl)-ethyl ester 在
氢气 作用下,
生成
Acetic acid (S)-1-((3S,5S,8S,9S,10R,13S,14S,17S)-3,17-dihydroxy-13-methyl-hexadecahydro-cyclopenta[a]phenanthren-10-yl)-ethyl ester