title: Clerodane and 19-norclerodane diterpenoids from the tubers of Dioscorea antaly.
abstract: Two clerodane diterpenoids, antadiosbulbins A and B and two 19-norclerodane diterpenes, 8-epidiosbulbins E and G along with the known diosbulbin E as well as nine known phenolics including five phenanthrenes and stilbenes and four flavonoids were isolated from the ethyl acetate soluble part of the methanolic extract of the tubers of Dioscorea antaly, a yam endemic to Madagascar. Structures were determined by analysis of the spectral data, mainly 2D-NMR and mass spectrometry.
authors.affiliation: FRE 3206 CNRS-MNHN, Molécules de Communication et Adaptation des Micro-organismes, Muséum National d'Histoire Naturelle, Paris, France.
authors.forename: Lolona
authors.initials: L
authors.lastname: Rakotobe
authors.forename: Lengo
authors.initials: L
authors.lastname: Mambu
authors.forename: Alexandre
authors.initials: A
authors.lastname: Deville
authors.forename: Lionel
authors.initials: L
authors.lastname: Dubost
authors.forename: Victor
authors.initials: V
authors.lastname: Jeannoda
authors.forename: Danielle
authors.initials: D
authors.lastname: Rakoto
authors.forename: Bernard
authors.initials: B
authors.lastname: Bodo
mesh_terms: D027742:Dioscorea / Q000737:chemistry*; D045785:Diterpenes, Clerodane / Q000737:chemistry* / Q000302:isolation & purification*; D008270:Madagascar; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D035281:Plant Tubers / Q000737:chemistry
chemical_list: D045785:Diterpenes, Clerodane