6533b7defe1ef96bd1275e54

RESEARCH PRODUCT

Furostanol saponins and ecdysones with cytotoxic activity from Helleborus bocconei ssp. intermedius

Sergio RosselliVivienne SpadaroCarmen FormisanoAntonella MaggioCarmen MaffettoneMaurizio BrunoCarlo IraceNicola Mascolo

subject

EcdysoneStereochemistryHelleborusSaponinRanunculaceaePharmacognosyCell Linefurostanol saponinC6 glioma cellAnimalsSettore BIO/15 - Biologia FarmaceuticaMedicinal plantsCytotoxicitycytotoxic activityPharmacologychemistry.chemical_classificationMolecular StructureTraditional medicinebiologyPlant ExtractsGlycosideBiological activitySettore CHIM/06 - Chimica OrganicaSaponinsbiology.organism_classificationAntineoplastic Agents PhytogenicRatsHelleborusSterolschemistryH. bocconei subsp. intermediuRanunculaceae

description

Two furostanol saponins helleboroside A (1) and helleboroside B (2) were isolated from the methanol extract of Helleborus bocconei Ten. subsp. intermedius (Guss.) Greuter and Burdet, along with the furospirostanol saponin 4 and two ecdysones: ecdysterone (5) and polypodyne B (6). Compound 2 was enzymatically hydrolysed to give product 3. The biological activity of all compounds was tested against rat C6 glioma cells showing a significant cytotoxicity for compounds 3, 4 and 6. Copyright © 2009 John Wiley & Sons, Ltd.

10.1002/ptr.2569http://hdl.handle.net/10447/38425