title: Iridoids from Caryopteris x clandonensis.
abstract: In continuation of our phytochemical studies on Caryopteris x clandonensis (Lamiaceae), three further iridoids were isolated from the methanolic extract of the stems. Their structures were established by 1D and 2D NMR and MS analysis as a C-6 epimer of 8-O-acetylharpagide (6-epi-8-O-acetylharpagide), a derivative of harpagide which contained the unusual feature of a 3',4' seco-glycopyranosyl moiety (clandonoside II) and a methyl cetal of 8-O-acetylharpagide aglucone hydrate named clandonensine.
authors.affiliation: Laboratoire Pharmacophores Redox, Phytochimie et Radiobiologie, Faculté des Sciences Pharmaceutiques, Toulouse, France. shannedouche@hotmail.com
authors.forename: S
authors.initials: S
authors.lastname: Hannedouche
authors.forename: E
authors.initials: E
authors.lastname: Stanislas
authors.forename: C
authors.initials: C
authors.lastname: Moulis
authors.forename: I
authors.initials: I
authors.lastname: Fourasté
mesh_terms: D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification*; D019686:Lamiaceae / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D015394:Molecular Structure
chemical_list: D006027:Glycosides