title: Chemical diversity of essential oils from Asteriscus graveolens (Forssk.) less.: identification of cis-8-Acetoxychrysanthenyl acetate as a new natural component.
abstract: Asteriscus graveolens is an endemic medicinal plant mainly distributed in south-western Algeria and south-eastern Morocco. The essential oils of leaves, stems, and flowers of A. graveolens had been studied by GC, GC/MS, and (13) C-NMR. The spectral data of two nerolidol derivatives, 6-oxo- and 6-hydroxycyclonerolidol, were reassigned by 1D- and 2D-NMR spectroscopy. These compounds can be considered as chemical markers of this genus. The structure of a monoterpenic diester with a chrysanthenane skeleton, i.e., cis-8-acetoxychrysanthenyl acetate, was determined for the first time on the basis of GC/MS, and 1D- and 2D-NMR. The stem and leaf oils were characterized by high content of oxygenated sesquiterpenes with 6-oxo- and 6-hydroxycyclonerolidol as major components, and the flower essential oils were dominated by the new monoterpenic compound cis-8-acetoxychrysanthenyl acetate.
authors.affiliation: Université de Corse, Laboratoire de Chimie des Produits Naturels, Corte.
authors.forename: Gregory
authors.initials: G
authors.lastname: Cristofari
authors.forename: Mohamed
authors.initials: M
authors.lastname: Znini
authors.forename: Lhou
authors.initials: L
authors.lastname: Majidi
authors.forename: Hamid
authors.initials: H
authors.lastname: Mazouz
authors.forename: Pierre
authors.initials: P
authors.lastname: Tomi
authors.forename: Jean
authors.initials: J
authors.lastname: Costa
authors.forename: Julien
authors.initials: J
authors.lastname: Paolini
mesh_terms: D019659:Asteraceae / Q000737:chemistry*; D001643:Bridged Bicyclo Compounds / Q000032:analysis*; D035264:Flowers / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry; D009682:Magnetic Resonance Spectroscopy; D039821:Monoterpenes / Q000032:analysis*; D009822:Oils, Volatile / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry; D010938:Plant Oils / Q000737:chemistry*; D018547:Plant Stems / Q000737:chemistry; D012717:Sesquiterpenes / Q000032:analysis
chemical_list: D001643:Bridged Bicyclo Compounds; D039821:Monoterpenes; D009822:Oils, Volatile; D010938:Plant Oils; D012717:Sesquiterpenes; C574000:cis-8-acetoxychrysanthenyl acetate; C037055:nerolidol