Data di Pubblicazione:
2011
Citazione:
Study on secondary metabolite content of Helleborus niger L. leaves / S. Vitalini, A. Braca, G. Fico. - In: FITOTERAPIA. - ISSN 1971-551X. - 82:2(2011), pp. 152-154.
Abstract:
Phytochemical investigation of Helleborus niger L. (Ranunculaceae) leaf methanol extract allowed to isolate a phenolic glucoside derivative and two flavonoid glycosides characterized as phenyllactic acid 2-O-β-d-glucopyranoside (1), quercetin 3-O-2-(E-caffeoyl)-α-l-arabinopyranosyl-(1 → 2)-β-d-glucopyranoside-7-O-β-d-glucopyranoside (2), and kaempferol 3-O-α-l-arabinopyranosyl-(1 → 2)-β-d-galactopyranoside-7-O-β-d-glucopyranoside (3), respectively. Compounds 1 and 2 were isolated for the first time and their structural characterization was obtained on the basis of extensive NMR spectral studies.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Flavonol glycosides; Helleborus niger; Phenyllactic acid; Ranunculaceae; Spectral analysis
Elenco autori:
S. Vitalini, A. Braca, G. Fico
Link alla scheda completa: