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  • Title: New flavonol glycosides from Aconitum burnatii Gáyer and Aconitum variegatum L.
    Author: Vitalini S, Braca A, Passarella D, Fico G.
    Journal: Fitoterapia; 2010 Oct; 81(7):940-7. PubMed ID: 20600691.
    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.
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