Diethyl 2-methyl-4-(2-nitrophenyl)-6-formylmethyl-1,4-dihydropyridine-3,5-dicarboxylate 、
盐酸羟胺 、
sodium acetate 、
溶剂黄146 以
乙酸酐 为溶剂,
以was obtained an oil of diethyl 2-methyl-4-(2-nitrophenyl)-6-cyanomethyl-1,4-dihydropyridine-3,5-dicarboxylate的产率得到diethyl 2-methyl-4-(2-nitrophenyl)-6-cyanomethyl-1,4-dihydropyridine-3,5-dicarboxylate