5,6-二甲氧基吡啶甲醛

N-甲基甲酰胺

1,1'-dihydroxy-2,2'-diphenyl-3,3'-biindole

2-phenyl-3-(2-phenyl-1H-indol-3-yl)-1H-indole

6,6'-diphenyl-[2,2']bipyridinyl