Indolopyridines with a hetero atom at a position of fusion. 7. Electrophilic substitution in 5,6-dihydroindolo-[2,1-a]isoquinoline

Halogenation, acylation, azo coupling, and alkylaminomethylation of 5,6-dihydroindoto[2,I-alisoguinoline were carried out at the C(11) position (pyrrole fragment). In dibromination, the second bromine atom was introduced into the C(9) position (indole part of the molecule). © 1994 Plenum Publishing Corporation.