6-甲基-5-氰基-4-氨基嘧啶

4-氨基-2,6-二甲基-5-嘧啶甲醛

5-amino-3-methyl-1-pyridin-2-ylpyrazole-4-carbonitrile

5-氨基-1-(4-溴苯基)-3-甲基-1H-吡唑-4-甲腈

3-methyl-1-pyridin-2-ylpyrazolo[3,4-d]pyrimidin-4-amine