0000000000161849

AUTHOR

Ma Lacaille-dubois

showing 2 related works from this author

A New Major Triterpene Saponin from the Roots of Cucurbita foetidissima

2000

Foetidissimoside B (1), a novel triterpene saponin, was isolated from the roots of Cucurbita foetidissima. Based on spectroscopic data, especially direct and long-range heteronuclear 2D NMR analysis and on chemical transformations, the structure of 1 was elucidated as 3-O-beta-D-glucuronopyranosyl-echinocystic acid 28-O-beta-D-glucopyranosyl-(1-->3)-beta-D-xylopyranosyl(1-->3)-[beta- D-xylopyranosyl (1-->4)]-alpha-L-rhamnopyranosyl-(1-->2)-alpha-L-arabinopyranoside . Compound 1 did not show any ability to potentiate in vitro cisplatin cytotoxicity in a human colon cancer cell line.

StereochemistryMolecular Sequence DataSaponinPharmaceutical ScienceUronic acidPharmacognosyPlant RootsAnalytical Chemistrychemistry.chemical_compoundTriterpeneDrug DiscoveryCarbohydrate ConformationTumor Cells CulturedHumansOleanolic AcidCytotoxicityPharmacologychemistry.chemical_classificationbiologySpectrum AnalysisOrganic ChemistryGlycosideSaponinsbiology.organism_classificationCucurbitaceaeCarbohydrate SequenceComplementary and alternative medicineHeteronuclear moleculechemistryBiochemistryMolecular MedicineCucurbita foetidissimaDrug Screening Assays AntitumorJournal of Natural Products
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A review of natural and modified betulinic, ursolic and echinocystic acid derivatives as potential antitumor and anti-HIV agents.

2003

The aim of this review is to update current knowledge on the betulinic, ursolic and echinocystic acids and their natural and semisynthetic analogs, focussing on their cytotoxic and anti-HIV activities. Then, the last results of the authors' team on unusual semisynthetic derivatives of these triterpenoids will be presented in order to establish structure/activity relationships.

PharmacologyMolecular StructureAnti hivChemistryAnti-HIV AgentsTumor cellsAntineoplastic AgentsGeneral MedicinePharmacologyTriterpenesStructure-Activity RelationshipTriterpenoidDrug DiscoveryHIV-1Tumor Cells CulturedStructure–activity relationshipHumansEchinocystic acidOleanolic AcidBetulinic AcidPentacyclic TriterpenesHT29 CellsMini reviews in medicinal chemistry
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