4-chloro-2-methyl-5-((trimethylsilyl)ethynyl)pyrimidine

2-甲基-4(3H)-嘧啶酮

4-氯-5-碘-2-甲基-嘧啶

5-碘-2-甲基-4(3H)-嘧啶酮

4-hydrazino-2-methyl-thieno[2,3-d]pyrimidine