4-氯-3-碘-1H-吡唑并[3,4-d]嘧啶

3-溴-4-氯-1H-吡唑并[3,4-d]嘧啶

4-(1H-吡唑并[3,4-d]-4-嘧啶)-哌嗪-1-羧酸叔丁酯

4-硫基-1H-吡啶并[3,4-d]嘧啶

4-乙氧基-1(2)h-吡唑并[3,4-d]嘧啶