methyl (4R)-4-[(3S,5R,7R,8R,9S,10S,12S,13R,14S,17R)-10,13-dimethyl-3-[3-(4-methylphenyl)sulfonyloxypropyl]-3,7,12-tris(trimethylsilyloxy)-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-17-yl]pentanoate 在
lithium hydroxide 、
N,N-二异丙基乙胺 、 sodium iodide 作用下,
以
1,4-二氧六环 、
乙腈 为溶剂,
反应 32.0h,
生成 (4R)-4-[(3S,5R,7R,8R,9S,10S,12S,13R,14S,17R)-3,7,12-trihydroxy-3-[3-[4-[(8S,11R,13S,14S,17S)-17-hydroxy-13-methyl-3-oxo-17-prop-1-ynyl-1,2,6,7,8,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-11-yl]-N-methylanilino]propyl]-10,13-dimethyl-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-17-yl]pentanoic acid