2-氰基-2-(乙氧基亚甲基氨基)乙酰胺

苄胺

3-benzyl-4,5,7,8-tetrahydro-6-methoxy-6-methoxycarbonyl-6H-imidazo(4,5-e)(1,4)diazepine-5,8-dione

diethyl 2--2-methoxymalonate

2-氰基-2-(羟基亚氨基)乙酰胺