Naphth-1-ylmethylideneacetoacetic acid ethyl ester 、
3-Amino-3-(1-pyrrolidinyl)acrylsaeure-ethylester 以
乙醇 为溶剂,
反应 2.0h,
以yields 2-pyrrolidino-6-methyl-4-naphth-1-yl-4,5-dihydropyridine-3,5-dicarboxylic acid diethyl ester of melting point 121° C. (ethanol)的产率得到2-pyrrolidino-6-methyl-4-naphth-1-yl-4,5-dihydropyridine-3,5-dicarboxylic acid diethyl ester