3,6-二甲基-1H-嘧啶-2,4-二酮

4-氯-5-碘-6-甲基嘧啶

5-(4-溴苯基)噻唑-2(3h)-酮

6-methyl-2-prop-2-ynylsulfanyl-1H-pyrimidin-4-one

6-methyl-2-[(4-nitrophenyl)methylsulfanyl]-1H-pyrimidin-4-one