11-(trimethylsilyl)-6H-indolo[2,3-b]quinoline

6H-1,2,3,4-tetrahydro-(indolo[2,3-b]quinoline)

11-(Toluene-4-sulfonyl)-11H-10,11-diaza-benzo[b]fluorene

11-chloro-6H-indolo[2,3-b]quinoline