(2S,4S)-tert-butyl 4-hydroxy-2-(2-(4'-(2-((2S,5S)-5-(methoxycarbonylamino)-4-oxo-1,2,4,5,6,7-hexahydroazepino[3,2,1-hi]indol-2-yl)-1H-imidazol-5-yl)biphenyl-4-yl)-2-oxoethylcarbamoyl)pyrrolidine-1-carboxylate 在
ammonium acetate 作用下,
以
xylene 为溶剂,
反应 4.0h,
以62%的产率得到(2S,4S)-tert-butyl 4-hydroxy-2-(5-(4'-(2-((2S,5S)-5-(methoxycarbonylamino)-4-oxo-1,2,4,5,6,7-hexahydroazepino[3,2,1-hi]indol-2-yl)-1H-imidazol-5-yl)biphenyl-4-yl)-1H-imidazol-2-yl)pyrrolidine-1-carboxylate