(5R,8S,11R,13S,14S,17S)-11-(3-ethenylphenyl)-5',5',13-trimethyl-17-(pentafluoroethyl)-1,2,3,4,6,7,8,11,12,13,14,15,16,17-tetradecahydrospiro[cyclopenta[a]phenanthrene-3,2'-[1,3]dioxane]-5,17-diol 在
9-硼双环[3.3.1]壬烷 、
双氧水 、 sodium hydroxide 作用下,
以
四氢呋喃 、
水 为溶剂,
反应 4.0h,
以67%的产率得到(5R,8S,11R,13S,14S,17S)-5',5',13-trimethyl-11-[3-(2-hydroxyethyl)phenyl]-17-(pentafluoroethyl)-1,2,3,4,6,7,8,11,12,13,14,15,16,17-tetradecahydrospiro[cyclopenta[a]phenanthrene-3,2'-[1,3]dioxane]-5,17-diol