N-(6-溴噻唑并[5,4-b]吡啶-2-基)苯甲酰胺

1-(2,6-dibromopyridin-3-yl)thiourea

3-氨基-5-溴-2-氯吡啶

硫氰化钾

5-溴-2-氯-3-硝基吡啶