(R)-5-((3S,5S,8R,9S,10S,13R,14S,17R)-10,13-dimethyl-3-(trifluoromethyl)-3-((trimethylsilyl)oxy)hexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)-2-methylhexan-2-ol 在
盐酸 作用下,
以
1,4-二氧六环 、
水 为溶剂,
反应 3.0h,
以37%的产率得到(3S,5S,8R,9S,10S,13R,14S,17R)-17-[(2R)-5-hydroxy-5-methylhexan-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