2-氨基-N-羟基-3-吡啶羧酰胺

3-碘-咪唑并[1,2-a]吡啶-8-甲腈

3-氨基异噻唑并[3,4-b]吡啶

2-Phenylpyrido[2,3-d]pyrimidin-4-amine