Flavonoids from the leaves of Cyclanthera pedata: two new malonyl derivatives.
Reversed-phase HPLC coupled with electrospray MS has been used for the simultaneous separation and determination of flavonoid metabolites in leaves of Cyclanthera pedata, an edible Peruvian plant mainly used in South America for its anti-inflammatory, hypoglycaemic and hypocholesterolaemic properties. The flavonoid content of the leaves of C. pedata was compared qualitatively and quantitatively with that of the fruits. The isolation and structural characterisation by MS and NMR of two new minor components of the fruits, namely, 6-C-fucopyranosyl-(3-malonyl)-chrysin and 6-C-fucopyranosyl-(4-malonyl)-chrysin, are described.
Dipartimento di Scienze Farmaceutiche, Università di Salerno, Via Ponte don Melillo, 84084 Fisciano (SA), Italy.
Paola
P
Montoro
Virginia
V
Carbone
Cosimo
C
Pizza
D000924:Anticholesteremic Agents / Q000737:chemistry / Q000302:isolation & purification; D002851:Chromatography, High Pressure Liquid; D019662:Cucurbitaceae / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D005638:Fruit / Q000737:chemistry; D019906:Nuclear Magnetic Resonance, Biomolecular; D018515:Plant Leaves / Q000737:chemistry; D021241:Spectrometry, Mass, Electrospray Ionization
D000924:Anticholesteremic Agents; D005419:Flavonoids