((8R,9S,13S,14S,17R)-3,17-Diacetoxy-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-17-yl)-acetic acid 在
氯化亚砜 作用下,
生成
Acetic acid (8R,9S,13S,14S,17R)-3-acetoxy-17-chlorocarbonylmethyl-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-17-yl ester