Any organic heterotricyclic compound with a skeleton consisting of a pyrrole ring ortho-fused at any position to a benzodiazepine bicyclic system.
| Member | Definition | Role |
|---|
| sibiromycin | An aminoglycoside antibiotic produced by Streptosporangium sibiricum that also exhibits antitumour properties. | sibiromycin |
| tilimycin | A pyrrolobenzodiazepine that is (11aS)-2,3,5,10,11,11a-hexahydro-1H-pyrrolo[2,1-c][1,4]benzodiazepine which is substituted by an oxo group at position 5 and by hydroxy groups at positions 9 and 11. It is an enterotoxic natural product synthesized via a non-ribosomal peptide synthase in Klebsiella oxytoca. | tilimycin |
| tilivalline | A pyrrolobenzodiazepine that is (11aS)-2,3,5,10,11,11a-hexahydro-1H-pyrrolo[2,1-c][1,4]benzodiazepine substituted by an oxo group at position 5, by a hydroxy group at position 9, and by a 1H-indol-3-yl group at position 11S. It is a natural product discovered in Klebsiella oxytoca which is the causative toxin in antibiotic associated hemorrhagic colitis. It exhibits a microtubule-stabilizing activity that leads to mitotic arrest in the host cells. | tilivalline |