2-二甲胺基-4-羟基-5,6-二甲基嘧啶

丙酮酸苯基腙

5,6-二甲基-4-羟基-2-甲氧基嘧啶

5,6-dimethyl-1H-[1,2,4]triazolo[1,5-a]pyrimidin-7-one

3-hydroxy-4-methyl-2H-furan-5-one