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