Keywords ethyl cyanoacetate;\ ethyl acetoacetate;\ ethyl amine;\ N ethyl 3 cyano 4 methyl 6 hydroxypyridin 2 one;\ derivatives;

• 氰乙酸乙酯;乙酰乙酸乙酯;乙胺;N-乙基-3-氰基-4-甲基-6-羟基吡啶-2-酮;衍生物;