title: Two new glycosides from Astragalus caprinus.
abstract: A new glycoside of flavonol (1) and a new glycoside of a cycloartane-type triterpene (2) were isolated from the leaves and the roots of Astragalus caprinus, respectively. Their structures were elucidated in turn by spectroscopic data interpretation as 3-O-[[beta-D-xylopyranosyl(1-->3)-alpha-L-rhamnopyranosyl(1-->6)][beta-D-apiofuranosyl(1-->2)]]-beta-D-galactopyranosyl kaempferol (1) and 3-O-(beta-D-xylopyranosyl)-24-O-(beta-D-glucopyranosyl)-20,25-epoxycycloartane-3beta,6alpha,16beta,24alpha-tetrol (2).
authors.affiliation: Laboratoire de Phytochimie et Biologie Moléculaire, Université Claude Bernard, 43 Bd. 11 Novembre, 69622 Villeurbanne, France. Nabilsemmar@hotmail.com
authors.forename: N
authors.initials: N
authors.lastname: Semmar
authors.forename: B
authors.initials: B
authors.lastname: Fenet
authors.forename: M A
authors.initials: MA
authors.lastname: Lacaille-Dubois
authors.forename: K
authors.initials: K
authors.lastname: Gluchoff-Fiasson
authors.forename: R
authors.initials: R
authors.lastname: Chemli
authors.forename: M
authors.initials: M
authors.lastname: Jay
mesh_terms: D005419:Flavonoids / Q000737:chemistry* / Q000302:isolation & purification; D006027:Glycosides / Q000737:chemistry* / Q000302:isolation & purification; D006868:Hydrolysis; D044949:Kaempferols; D009682:Magnetic Resonance Spectroscopy; D018515:Plant Leaves / Q000737:chemistry; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry* / Q000302:isolation & purification; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification; D014416:Tunisia
chemical_list: C433959:3-O-((xylopyranosyl(1-3)-rhamnopyranosyl(1-6))(apiofuranosyl(1-2)))-galactopyranosyl kaempferol; C433960:3-O-(beta-D-xylopyranosyl)-24-O-(beta-D-glucopyranosyl)-20,25-epoxy-cycloartane-3beta,6alpha,16beta,24alpha-tetrol; D005419:Flavonoids; D006027:Glycosides; D044949:Kaempferols; D012503:Saponins; D014315:Triterpenes