17-{4-[(6-{[4-(3-hydroxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoyl](methyl)amino}hexa-2,4-diynyl)(methyl)amino]-1-methyl-4-oxobutyl}-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-3-yl 2-(tert-butoxycarbonylamino)-3-(tritylthio)propanoate 、
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85%的产率得到17-(4-[(6-{[4-(3-{2-[(9H-fluoren-9-ylmethoxy)carbonylamino]acetoxy}-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoyl](methyl)amino}hexa-2,4-diynyl)(methyl)amino]-1-methyl-4-oxobutyl)-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-3-yl 2-(tert-butoxycarbonylamino)-3-(tritylthio)propanoate