2'-cyanobenzylideneacetoacetic acid ethyl ester 、 amidinoacetic acid isopropyl ester 、
异丙醇 、
乙醇 反应 1.0h,
以2-amino-6-methyl-4-(2-cyanophenyl)-1,4-dihydropyridine-3,5-dicarboxylic acid 3-isopropyl ester 5-ethyl ester of melting point 200°C (isopropanol) is obtained的产率得到2-Amino-4-(2-cyano-phenyl)-6-methyl-1,4-dihydro-pyridine-3,5-dicarboxylic acid 5-ethyl ester 3-isopropyl ester