(3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-((R)-6-methylheptan-2-yl)-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl (2S,4R)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-hydroxypyrrolidine-1-carboxylate 在
N-甲基咪唑 、
三乙胺 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
生成 1-O-[(3R,5S)-5-[[bis(4-methoxyphenyl)-phenylmethoxy]methyl]-1-[[(3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl]oxycarbonyl]pyrrolidin-3-yl] 4-O-(2,3,5,6-tetrafluorophenyl) butanedioate