title: New flavonol glycosides from Aconitum burnatii Gáyer and Aconitum variegatum L.
abstract: Six flavonol glycosides, compounds 1-3 from A. burnatii Gáyer and 4-6 from A. variegatum L., were obtained from their methanol extracts of aerial parts. The identified structures were quercetin 3-O-β-D-glucopyranoside-7-O-(6-E-p-coumaroyl)-β-D-glucopyranosyl-(1 → 3)-α-L-rhamnopyranoside (1), quercetin 3-O-β-D-glucopyranoside-7-O-β-D-glucopyranosyl-(1 → 3)-α-L-rhamnopyranoside (2), quercetin 3-O-β-D-glucopyranoside-7-O-(6-E-caffeoyl)-β-D-glucopyranosyl-(1 → 3)-α-L-rhamnopyranoside (3), kaempferol 3-O-β-D-galactopyranoside-7-O-α-L-arabinopyranoside (4), quercetin 3-O-β-D-glucopyranoside (5), and kaempferol 3-O-β-D-glucopyranoside (6). Compounds 1, 2 and 4 were isolated for the first time. The antioxidant potential of the methanol extracts and pure compounds was tested with different assays.
authors.affiliation: Dipartimento di Produzione Vegetale, Università degli Studi di Milano, via Celoria 2, 20133 Milano, Italy.
authors.forename: Sara
authors.initials: S
authors.lastname: Vitalini
authors.forename: Alessandra
authors.initials: A
authors.lastname: Braca
authors.forename: Daniele
authors.initials: D
authors.lastname: Passarella
authors.forename: Gelsomina
authors.initials: G
authors.lastname: Fico
mesh_terms: D031841:Aconitum / Q000737:chemistry*; D000975:Antioxidants / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D044948:Flavonols / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D015394:Molecular Structure; D035261:Plant Components, Aerial; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology
chemical_list: D000975:Antioxidants; D044948:Flavonols; D006027:Glycosides; D010936:Plant Extracts