title: Arboflorine, an unusual pentacyclic monoterpenoid indole alkaloid incorporating a third nitrogen atom.
abstract: [structure: see text] A new indole alkaloid, arboflorine, possessing a novel pentacyclic carbon skeleton and incorporating a third nitrogen atom was obtained from the Malayan Kopsia arborea. The structure was established by spectroscopic analysis, and a possible biogenetic pathway from a preakuammicine-type precursor is presented.
authors.affiliation: Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors.forename: Kuan-Hon
authors.initials: KH
authors.lastname: Lim
authors.forename: Toh-Seok
authors.initials: TS
authors.lastname: Kam
mesh_terms: D008296:Malaysia; D015394:Molecular Structure; D009584:Nitrogen / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry; D046948:Secologanin Tryptamine Alkaloids / Q000138:chemical synthesis* / Q000737:chemistry
chemical_list: D046948:Secologanin Tryptamine Alkaloids; C516136:arboflorine; C516137:preakuammicine; D009584:Nitrogen