6-[4-(3-hydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoyloxy]hexa-2,4-diynyl 4-{3-[2-(tert-butoxycarbonylamino)-3-(tritylthio)propanoyloxy]-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl}pentanoate 、
Fmoc-甘氨酸 在
盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下,
以
二氯甲烷 为溶剂,
反应 22.0h,
以55%的产率得到6-(4-{3-[2-(tert-butoxycarbonylamino)-3-(tritylthio)propanoyloxy]-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl}pentanoyloxy)hexa-2,4-diynyl 4-(3-{2-[(9H-fluoren-9-ylmethoxy)carbonylamino]acetoxy}-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoate