M. Macchia et al., SYNTHESIS AND ANTIMICROBIAL ACTIVITY OF BENZO[A]DIHYDROCARBAZOLE AND BENZOTETRAHYDROCYCLOHEPT[1,2-B]INDOLE DERIVATIVES, Il Farmaco, 51(1), 1996, pp. 75-78
A certain number of benzodihydrocarbazoles and benzotetrahydrocyclohep
tindoles were synthesized and tested for their antimicrobial activity.
Compounds substituted on the nitrogen of the tetracyclic systems with
a dimethylaminopropyl chain showed an antibacterial activity directed
almost exclusively towards Gram-positive bacteria, while their N-unsu
bstituted analogs were completely inactive.