2,3-dimethylpyrido[2,3-b]pyrazine

6-溴[1,2,5]噻二唑并[3,4-b]吡啶

2-氨基-5-溴吡啶-3-磺酰氯

6-溴-2-甲基咪唑并[1,2-a]吡啶-8-胺

6-溴-1,3-二氢-2H-咪唑并[4,5-b]吡啶-2-硫酮