Introduction of pharmacophore groups into bis(indol-1-yl)maleimides and 6H-pyrrolo[3,4: 2,3][1,4]diazepino[6,7,1-hi]-indolo-8,10(7H,9H)-diones

The synthesis of bis(indol-1-yl)maleimides and polycondensed [1,4]diazepines containing various functional groups, which are the analogs of biologically active indolo[2,3-a]carbazoles, is described. Functional groups were introduced directly into [1,4]diazepine and bis(indol-1-yl)maleimide molecules via electrophilic substitution reactions using precursors containing such functional groups.