6533b856fe1ef96bd12b283a

RESEARCH PRODUCT

Three New Triterpene Saponins from Two Species of Carpolobia

Clément DelaudeMarie Aleth Lacaille-duboisAnne Claire Mitaine-offerIkhlas A. KhanTomofumi Miyamoto

subject

StereochemistrySaponinNigeriaPharmaceutical SciencePharmacognosyAnalytical ChemistryCarpolobiaTriterpeneDrug DiscoveryTumor Cells CulturedHumansTrisaccharideOleanolic AcidNuclear Magnetic Resonance BiomolecularPharmacologychemistry.chemical_classificationPlants MedicinalMolecular StructurebiologyHydrolysisOrganic ChemistryGlycosideStereoisomerismSaponinsbiology.organism_classificationAntineoplastic Agents PhytogenicTriterpenesTerpenoidPolygalaceaeComplementary and alternative medicinechemistryColonic NeoplasmsMolecular MedicinePolygalaceaeChromatography Thin LayerCisplatinDrug Screening Assays Antitumor

description

Three new acetylated triterpene saponins 1-3 were isolated from the roots of Carpolobia alba and C. lutea. Their structures were established mainly by 2D NMR techniques as 3-O-beta-D-glucopyranosylpresenegenin-28-O-beta-D-galactopyranosyl-(1-->4)-[beta-D-xylopyranosyl-(1-->3)]-beta-D-xylopyranosyl-(1-->4)-alpha-L-rhamnopyranosyl-(1-->2)-(3,4-di-O-acetyl)-beta-D-fucopyranosyl ester, 3-O-beta-D-glucopyranosylpresenegenin-28-O-beta-D-galactopyranosyl-(1-->4)-[alpha-L-arabinopyranosyl-(1-->3)]-beta-D-xylopyranosyl-(1-->4)-alpha-L-rhamnopyranosyl-(1-->2)-(3,4-di-O-acetyl)-beta-D-fucopyranosyl ester, and 3-O-beta-D-glucopyranosylpresenegenin-28-O-beta-D-xylopyranosyl-(1-->4)-[beta-D-apiofuranosyl-(1-->3)]-alpha-L-rhamnopyranosyl-(1-->2)-(3,4-di-O-acetyl)-beta-D-fucopyranosyl ester, respectively.

yearjournalcountryeditionlanguage
2002-04-27Journal of Natural Products
https://doi.org/10.1021/np010546e