溶剂黄146 、
(22E,24S)-6β-methoxy-23,24-dimethyl-3α,5-cyclo-5α-cholest-22-ene 在
zinc diacetate 作用下,
反应 3.0h,
以88%的产率得到Acetic acid (3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-((E)-(1R,4S)-1,3,4,5-tetramethyl-hex-2-enyl)-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester