6533b7cffe1ef96bd1259154
RESEARCH PRODUCT
A new oleanane glycoside from the roots ofAstragalus caprinus
Maurice JayTomofumi MiyamotoMarie Aleth Lacaille-duboisAnne Claire Mitaine-offerNabil Semmarsubject
chemistry.chemical_classificationMagnetic Resonance SpectroscopyMolecular StructureChemistryStereochemistrySaponinGlycosideAstragalus PlantGeneral ChemistryNuclear magnetic resonance spectroscopyPlant Rootschemistry.chemical_compoundAstragalosideTriterpeneOrganic chemistryGeneral Materials ScienceGlycosidesOleanolic AcidOleananeTwo-dimensional nuclear magnetic resonance spectroscopyHeteronuclear single quantum coherence spectroscopydescription
A novel oleanane-type triterpene saponin (1) together with two known molecules, soyasapogenol B and astragaloside VIII were isolated from the roots of Astragalus caprinus. Their structural elucidation was performed mainly by 2D NMR techniques (COSY, TOCSY, NOESY, HSQC, HMBC) and mass spectrometry. Compound 1 was determined as 3-O-[alpha-L-rhamnopyranosyl-(1 --> 2)-beta-D-glucuronopyranosyl]-22-O-beta-D-apiofuranosyl-soyasapogenol B.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-04-08 | Magnetic Resonance in Chemistry |