methyl 4-(4-amino-1-methoxy-2-naphthoylamino)-1-methoxy-2-naphthoate 、
1-methoxy-4-(1-methoxy-4-nitro-2-naphthoylamino)-2-naphthoic acid 在
O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate 、
N,N-二异丙基乙胺 作用下,
以
乙腈 为溶剂,
反应 12.0h,
以43%的产率得到methyl 1-methoxy-4-(1-methoxy-4-(1-methoxy-4-(1-methoxy-4-nitro-2-naphthoylamino)-2-naphthoylamino)-2-naphthoylamino)-2-naphthoate