title: Furanoheliangolides from leaves of Neurolaena macrocephala.
abstract: Six sesquiterpene lactones, two new (3 and 6) and four known (1, 2, 4 and 5) were isolated from the leaves of the Mexican Neurolaena macrocephala (Asteraceae). The furanoheliangolide 6, containing 4beta,5-dihydro-9alpha-hydroxy-atripliciolide as basic structure, was found for the first time in nature. The chemotaxonomic importance of this phytochemical work is discussed.
authors.affiliation: Institut für Pharmazeutische Biologie, Heinrich-Heine-Universität, Düsseldorf, Germany. passreit@uni-duesseldorf.de
authors.forename: C M
authors.initials: CM
authors.lastname: Passreiter
authors.forename: S
authors.initials: S
authors.lastname: Stöber
authors.forename: A
authors.initials: A
authors.lastname: Ortega
mesh_terms: D019659:Asteraceae / Q000737:chemistry*; D007783:Lactones / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D008800:Mexico; D008958:Models, Molecular; D008968:Molecular Conformation; D015394:Molecular Structure; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012717:Sesquiterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D007783:Lactones; D012717:Sesquiterpenes