(3S,5S,6R,8R,9S,10R,13S,14S,17S)-6,10,13-Trimethyl-17-(2-methyl-[1,3]dioxolan-2-yl)-hexadecahydro-cyclopenta[a]phenanthrene-3,6-diol 在
对甲苯磺酸 作用下,
以
水 、
丙酮 为溶剂,
生成 1-((3S,5S,6R,8R,9S,10R,13S,14S,17S)-3,6-Dihydroxy-6,10,13-trimethyl-hexadecahydro-cyclopenta[a]phenanthren-17-yl)-ethanone