title: Structure elucidation and phytotoxicity of C13 nor-isoprenoids from Cestrum parqui.
abstract: Twelve C(13) nor-isoprenoids have been isolated from the leaves of Cestrum parqui (Solanaceae). The structure (2R,6R,9R)-2,9-dihydroxy-4-megastigmen-3-one has been assigned to the new compound. All the structures have been determined by spectroscopic means and chemical correlations. The compounds showed phytotoxic effect on the germination and growth of Lactuca sativa L.
authors.affiliation: Dipartimento di Scienze della Vita, Seconda Università di Napoli, via Vivaldi 43, I-81100 Caserta, Italy.
authors.forename: Brigida
authors.initials: B
authors.lastname: D'Abrosca
authors.forename: Marina
authors.initials: M
authors.lastname: DellaGreca
authors.forename: Antonio
authors.initials: A
authors.lastname: Fiorentino
authors.forename: Pietro
authors.initials: P
authors.lastname: Monaco
authors.forename: Palma
authors.initials: P
authors.lastname: Oriano
authors.forename: Fabio
authors.initials: F
authors.lastname: Temussi
mesh_terms: D032301:Cestrum / Q000737:chemistry*; D018525:Germination / Q000187:drug effects; D018545:Lactuca / Q000187:drug effects / Q000254:growth & development; D015394:Molecular Structure; D045792:Norisoprenoids / Q000737:chemistry* / Q000302:isolation & purification / Q000633:toxicity*; D019906:Nuclear Magnetic Resonance, Biomolecular; D018515:Plant Leaves / Q000737:chemistry; D018517:Plant Roots / Q000187:drug effects / Q000254:growth & development; D018520:Plant Shoots / Q000187:drug effects / Q000254:growth & development; D010947:Plants, Toxic / Q000737:chemistry; D013237:Stereoisomerism
chemical_list: D045792:Norisoprenoids