9H-吡啶并[3,4-b]吲哚-3-羧酸 、
(2R,3R,4R,5R,6S)-6-(((1S,2R,3R,4R,6S)-2-((4-aminobutyl)amino)-4,6-diazido-3-(benzoyloxy)cyclohexyl)oxy)-5-azido-2-(azidomethyl)tetrahydro-2H-pyran-3,4-diyl dibenzoate 在
1-羟基苯并三唑 、 O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate 、
N,N-二异丙基乙胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以70%的产率得到(2R,3R,4R,5R,6S)-6-(((1S,2R,3R,4R,6S)-2-((4-(9H-pyrido[3,4-b]indole-3-carboxamido)butyl)amino)-4,6-diazido-3-(benzoyloxy)cyclohexyl)oxy)-5-azido-2-(azidomethyl)tetrahydro-2H-pyran-3,4-diyl dibenzoate