3-(3α-acetoxy-12-oxo-5β-cholanoxy-)-4-methylthiazole-2(3H)-thione 在
antimony triphenylsulphide 作用下,
以
氯苯 为溶剂,
反应 12.0h,
以90%的产率得到Acetic acid (3R,5R,8R,9S,10S,13R,14S,17R)-17-((R)-3-hydroxy-1-methyl-propyl)-10,13-dimethyl-12-oxo-hexadecahydro-cyclopenta[a]phenanthren-3-yl ester