Acetic acid (3S,5S,6S,8S,9S,10R,13S,14S,17S)-17-acetyl-10,13-dimethyl-hexadecahydro-cyclopropa[5,6]cyclopenta[a]phenanthren-3-yl ester 生成
1-((3S,5S,6S,8R,9S,10R,13S,14S,17R)-3,17-Dihydroxy-10,13-dimethyl-hexadecahydro-cyclopropa[5,6]cyclopenta[a]phenanthren-17-yl)-ethanone