22-azido-23,24-bisnorcholane-1,4-dien-3-one 、
benzyl N-[(5S)-5-[[2-[[(2S)-3-methyl-2-[[(2S)-2-[[(2S,3S)-3-methyl-2-[(2-methylpropan-2-yl)oxycarbonylamino]pentanoyl]amino]-3-phenylpropanoyl]amino]butanoyl]amino]acetyl]amino]-6-oxo-6-(prop-2-ynylamino)hexyl]carbamate 在
copper(II) acetate monohydrate 、
sodium ascorbate 作用下,
以
四氢呋喃 、
水 为溶剂,
反应 24.0h,
以89%的产率得到benzyl N-[(5S)-6-[[1-[(2S)-2-[(8S,9S,10R,13S,14S,17R)-10,13-dimethyl-3-oxo-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-17-yl]propyl]triazol-4-yl]methylamino]-5-[[2-[[(2S)-3-methyl-2-[[(2S)-2-[[(2S,3S)-3-methyl-2-[(2-methylpropan-2-yl)oxycarbonylamino]pentanoyl]amino]-3-phenylpropanoyl]amino]butanoyl]amino]acetyl]amino]-6-oxohexyl]carbamate