反应详情

After heating a solution of 18.1 g of 3-chlorobenzylideneacetone and 13.0 g of amidinoacetic acid ethyl ester in 150 ml of ethanol for 3 hours, 2-amino-6-methyl-4-(3-chlorophenyl)-1,4-dihydropyridine-3-carboxylic acid ethyl ester of melting point 140°C (isopropanol) is obtained. Yield: 56 percent of theory.