6533b7d5fe1ef96bd1263f40
RESEARCH PRODUCT
Novel Acylated Triterpene Glycosides from Muraltia heisteria
Marie Aleth Lacaille-duboisMohamed ElbandyTomofumi MiyamotoBruno ChauffertClément Delaudesubject
StereochemistryAcylationSaponinPharmaceutical ScienceStereoisomerismPharmacognosyPlant RootsAnalytical ChemistrySouth AfricaTriterpeneDrug DiscoveryTumor Cells CulturedHumansOrganic chemistryNuclear Magnetic Resonance BiomolecularChromatography High Pressure LiquidPharmacologychemistry.chemical_classificationMolecular StructureChemistryHydrolysisOrganic ChemistryGlycosideStereoisomerismBiological activitySaponinsAntineoplastic Agents PhytogenicTriterpenesTerpenoidPolygalaceaeComplementary and alternative medicineMolecular MedicineCisplatinDrug Screening Assays AntitumorHT29 CellsTwo-dimensional nuclear magnetic resonance spectroscopydescription
Four new acylated triterpene glycosides (1-4) have been isolated as two inseparable mixtures of the trans- and cis-3,4,5-trimethoxycinnamoyl derivatives (1,2 and 3,4) from the roots of Muraltia heisteria. The structures of these compounds were elucidated by various 1D and 2D NMR techniques, including (1)H and (13)C, COSY, NOESY, HSQC, TOCSY, and HMBC experiments and FABMS. Compounds 3 and 4 were shown to be cytotoxic in a human colon cancer cell line but did not show any ability to potentiate in vitro cisplatin cytotoxicity.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2002-02-23 | Journal of Natural Products |