6-methyl-5-(piperidin-1-ylmethyl)-2-sulfanylidene-1H-pyrimidin-4-one

2-benzylsulfanyl-6-methyl-1H-pyrimidin-4-one

3-(4-chlorophenyl)-7-methyl-[1,3]thiazolo[3,2-a]pyrimidin-5-one

6-甲基-4-羟基-2-甲硫基嘧啶

1-乙酰基-5-羟基-2,4-咪唑烷二酮