2-chloromethyl-4-(3,4-dimethoxyphenyl)-6,7-dimethoxyquinoline-3-carboxylic acid ethyl ester   、                                                                                      
N-甲基苯胺                                                                                                                                                                                                                                                                                                          以to give ethyl 4-(3,4-dimethoxyphenyl)-2-(N-methyl-N-phenylaminomethyl)-6,7-dimethoxyquinoline-3-carboxylate的产率得到ethyl 4-(3,4-dimethoxyphenyl)-2-(N-methyl-N-phenylaminomethyl)-6,7-dimethoxyquinoline-3-carboxylate