苯甲醛

丙炔酸乙酯

1,3,5-triethoxycarbonyl-4-phenyl-1,4-dihydropyridine

3-(二甲氨基)丙烯酸乙酯

diethyl 1-acetyl-4-(4-methoxyphenyl)-1,4-dihydropyridine-3,5-dicarboxylate