2-chloromethyl-4-(3,4-dimethoxyphenyl)-6,7-dimethoxyquinoline-3-carboxylic acid ethyl ester 、
二异戊胺 以to give ethyl 4-(3,4-dimethoxyphenyl)-2-(N,N-diisopentylaminomethyl)-6,7-dimethoxyquinoline-3-carboxylate的产率得到ethyl 4-(3,4-dimethoxyphenyl)-2-(N,N-diisopentylaminomethyl)-6,7-dimethoxyquinoline-3-carboxylate