2,2'-联吡啶-4,4'-二甲酸甲酯

3-羟基-2-(吡啶-4-基)茚-1-酮

吡啶-4-甲醛肟

2,3,4,5-四-(4-吡啶)噻吩

4-(1,3-dipyridin-4-ylpropan-2-yl)pyridine