4-(3,4-dimethoxyphenyl)-2,6-dipyridin-2-ylpyridine

4-[3,5-bis(2,6-dipyridin-2-ylpyridin-4-yl)phenyl]-2,6-dipyridin-2-ylpyridine

2,2'-联吡啶-4-甲醛

2,2-联吡啶-5-甲胺

2,2'-联吡啶-5-甲醛