{(2S,5S)-2-[5-(4'-{2-[(S)-1-((S)-2-methoxycarbonylamino-3-methyl-butyryl)-pyrrolidin-2-yl]-3H-imidazol-4-yl}-biphenyl-4-yl)-1H-imidazol-2-yl]-4,7-dioxo-1,2,4,5,6,7-hexahydro-azepino[3,2,1-hi]indol-5-yl}-carbamic acid methyl ester 在
sodium tetrahydroborate 作用下,
以
四氢呋喃 、
乙醇 为溶剂,
反应 0.5h,
以29%的产率得到{(2S,5S)-7-hydroxy-2-[5-(4'-{2-[(S)-1-((S)-2-methoxycarbonylamino-3-methyl-butyryl)-pyrrolidin-2-yl]-3H-imidazol-4-yl}-biphenyl-4-yl)-1H-imidazol-2-yl]-4-oxo-1,2,4,5,6,7-hexahydro-azepino[3,2,1-hi]indol-5-yl}-carbamic acid methyl ester