title: Structures of cadinane- and guaiane-type sesquiterpenoids from Enterospermum madagascariensis (Baill.) Homolle.
abstract: Three new cadinane- and guaiane-type sesquiterpenoids, 2-hydroxy-10-epi-zonarene 1, 2, 15-dihydroxycalamenene 2 and guaia-4, 6-dien-3-one 3, were isolated from the wood of Enterospermum madagascariensis (Rubiaceae) grown in Madagascar. Their structures were established from concerted application of 2D NMR techniques including gs-COSY, gs-HMQC, gs-HMBC and NOESY.
authors.affiliation: Laboratoire de Chimie des Substances Naturelles, Université de la Polynésie Française, BP 6570, 98702 Faaa, Tahiti, Polynésie Française, France.
authors.forename: P
authors.initials: P
authors.lastname: Raharivelomanana
authors.forename: J P
authors.initials: JP
authors.lastname: Bianchini
authors.forename: A R P
authors.initials: AR
authors.lastname: Ramanoelina
authors.forename: J R E
authors.initials: JR
authors.lastname: Rasoharahona
authors.forename: F
authors.initials: F
authors.lastname: Chatel
authors.forename: R
authors.initials: R
authors.lastname: Faure
mesh_terms: D003508:Cycloheptanes / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D000081223:Polycyclic Sesquiterpenes; D019666:Rubiaceae / Q000737:chemistry*; D012717:Sesquiterpenes / Q000737:chemistry*; D045789:Sesquiterpenes, Guaiane / Q000737:chemistry*
chemical_list: D003508:Cycloheptanes; D000081223:Polycyclic Sesquiterpenes; D012717:Sesquiterpenes; D045789:Sesquiterpenes, Guaiane; C508039:cadinane; C421026:guaiane