has functional parent has functional parent indoles indole alkaloid dipeptide pyrrolopyrazine brevianamide F tryprostatin B triprostatin B tryprostatin B chebi_ontology CHEBI:72760 A cyclic dipeptide that is brevianamide F (<em>cyclo</em>-<small>L</small>-Trp-<small>L</small>-Pro) substituted at position 2 on the indole ring by a prenyl group.