title: A new alpha-methylene gamma-lactone sesquiterpene from Hedyosmum arborescens.
abstract: A new sesquiterpene lactone, 7alpha,10alpha-epoxy-1alpha(H),5alpha(H)-guaia-3,11(13)-dien-8alpha,12-olide, was isolated from the leaves of Hedyosmum arborescens. The structure of this unusual 7,10-epoxy-guaianolide was determined by spectroscopic methods, particularly one- and two-dimensional 1H and 13C NMR.
authors.affiliation: Qualité des Produits Végétaux Tropicaux, EA 3639, Faculté des Sciences Exactes et Naturelles, Campus de Fouillole, Université des Antilles et de la Guyane, BP 250, 97 157, Pointe à Pitre Cedex, France. srodinbe@univ-ag.fr
authors.forename: Sylvie
authors.initials: S
authors.lastname: Bercion
authors.forename: Marie-Anna
authors.initials: MA
authors.lastname: Couppe de K Martin
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Baltaze
authors.forename: Paul
authors.initials: P
authors.lastname: Bourgeois
mesh_terms: D009682:Magnetic Resonance Spectroscopy; D019684:Magnoliopsida / Q000737:chemistry*; D015394:Molecular Structure; D018515:Plant Leaves / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D045789:Sesquiterpenes, Guaiane / Q000737:chemistry* / Q000302:isolation & purification*
chemical_list: C507783:7,10-epoxy-hedyosminolide; D045789:Sesquiterpenes, Guaiane