6-isopropyl-1-oxa-spiro[2.5]octane 、 (3S,5S,8R,9S,10S,13S,14S,17R)-17-[(2S)-1-(benzenesulfonyl)propan-2-yl]-10,13-dimethyl-3-(trifluoromethyl)-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-ol 在
正丁基锂 作用下,
以
四氢呋喃 、
正己烷 为溶剂,
反应 17.0h,
生成 (3S,5S,8R,9S,10S,13S,14S,17R)-17-[(2S)-3-(benzenesulfonyl)-4-(1-hydroxy-4-propan-2-ylcyclohexyl)butan-2-yl]-10,13-dimethyl-3-(trifluoromethyl)-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-ol