5-bromo-2-(4-bromophenyl)pyridine

2,5-dibromo-1-oxidopyridin-1-ium

tributyl-[5-(1,3-dioxolan-2-yl)pyridin-2-yl]stannane

5-溴-2-乙烯基吡啶

2,5-二乙烯基-吡啶