3-pyrrolidino-3-aminoacrylic acid isopropyl ester 、
ethyl 3-oxo-2-<<2-(trifluoromethyl)phenyl>methylene>butanoate 以
乙醇 为溶剂,
以55%的产率得到2-pyrrolidino-6-methyl-4-(2-trifluoromethylphenyl)-4,5-dihydropyridine-3,5-dicarboxylic acid 3-isopropyl ester-5-ethyl ester