、
丹酰氯 在
N,N-二异丙基乙胺 作用下,
以
二氯甲烷 为溶剂,
反应 24.0h,
以65%的产率得到methyl (4R)-4-[(3R,5S,7R,8R,9S,10S,12S,13R,14S,17R)-3-[4-[[(4R)-4-[(3R,5S,7R,8R,9S,10S,12S,13R,14S,17R)-3-[4-[[5-(dimethylamino)naphthalen-1-yl]sulfonylamino]butanoylamino]-7,12-dihydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]pentanoyl]amino]butanoylamino]-7,12-dihydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]pentanoate