6533b870fe1ef96bd12cf1ce

RESEARCH PRODUCT

Two New Glycosides from Astragalus caprinus

Marie Aleth Lacaille-duboisKatia Gluchoff-fiassonRachid ChemliBernard FenetNabil SemmarMaurice Jay

subject

Magnetic Resonance SpectroscopyTunisiaSpectrophotometry InfraredStereochemistryFlavonoidSaponinPharmaceutical ScienceSpectrometry Mass Fast Atom BombardmentPharmacognosyPlant RootsAnalytical Chemistrychemistry.chemical_compoundTriterpeneDrug DiscoveryTetrasaccharideGlycosidesKaempferolsFlavonoidsPharmacologychemistry.chemical_classificationPlants MedicinalHydrolysisOrganic ChemistryGlycosideSaponinsTriterpenesTerpenoidPlant LeavesComplementary and alternative medicinechemistryMolecular MedicineSpectrophotometry UltravioletKaempferol

description

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).

yearjournalcountryeditionlanguage
2001-05-26Journal of Natural Products
https://doi.org/10.1021/np0005311