1-(12-benzyl-7,13-dimethoxy-6H,12H-5,12-diazaindeno[1,2-b]phenanthren-5-yl)-ethanone

12-benzyl-7,13-dioxo-12,13-dihydro-7H-indolo[3,2-j]phenanthridine-1-yl trifluoromethanesulfonate

9-benzyl-(4-benzyloxy)-1-bromo-9H-carbazole-3-carbaldehyde

4-hydroxy-9H-carbazole-3-carbaldehyde

1-bromo-4-hydroxy-9H-carbazole-3-carbaldehyde