isopropyl 2-formyl-3-methoxycarbonyl-6-methyl-4-(4-nitrophenyl)-1,4-dihydropyridine-5-carboxylate

isopropyl 2-formyl-3-methoxycarbonyl-6-methyl-4-(5-nitro-2-furyl)-1,4-dihydropyridine-5-carboxylate

2-(2-Amino-ethoxymethyl)-4-(2,3-dichloro-phenyl)-6-methyl-1,4-dihydro-pyridine-3,5-dicarboxylic acid 3-ethyl ester 5-isopropyl ester