6-氧代-2-(吡啶-4-基)-1,6-二氢嘧啶-5-羧酸乙酯

2-(4-吡啶基)-4-氨基嘧啶

6-propyl-2-pyridin-4-yl-1H-pyrimidin-4-one

4-氯-2-(4-吡啶)-6-甲基嘧啶

(6-methyl-2-pyridin-4-ylpyrimidin-4-yl)hydrazine