2'-nitrobenzylideneacetoacetic acid methyl ester 、 amidinoacetic acid isopropyl ester 、
异丙醇 、
乙醇 反应 8.0h,
以2-amino-6-methyl-4-(2 -nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylic acid 3-isopropyl ester 5-methyl ester of melting point 203° C. (isopropanol) is obtained的产率得到2-Amino-6-methyl-4-(2-nitro-phenyl)-1,4-dihydro-pyridine-3,5-dicarboxylic acid 3-isopropyl ester 5-methyl ester