甲基磺酰氯 、 Methanesulfonic acid (3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-((E)-(R)-1,4,5-trimethyl-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 在
吡啶 作用下,
以
二氯甲烷 为溶剂,
反应 4.0h,
生成
(3R,8S,9S,10R,13R,14S,17R)-3-Benzyloxy-10,13-dimethyl-17-((E)-(R)-1,4,5-trimethyl-hex-2-enyl)-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene 、
(1aR,3aR,3bS,5aR,6R,8aS,8bS,10aR)-10-Benzyloxy-3a,5a-dimethyl-6-((E)-(R)-1,4,5-trimethyl-hex-2-enyl)-hexadecahydro-cyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalene