(2E)-2-phenylmethoxyiminoacetyl chloride 、
(3R,5R,8R,9S,10S,13R,14S,17R)-10,13-dimethyl-17-[(2R)-5-phenylsulfanylpentan-2-yl]-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol 在
sodium hydride 作用下,
以
四氢呋喃 为溶剂,
反应 18.0h,
以55%的产率得到[(3R,5R,8R,9S,10S,13R,14S,17R)-10,13-dimethyl-17-[(2R)-5-phenylsulfanylpentan-2-yl]-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl] (2E)-2-phenylmethoxyiminoacetate