Flavonoid characterization and in vitro antioxidant activity of Aconitum anthora L. (Ranunculaceae)

Chemical investigation on aerial parts of Aconitum anthora yielded quercetin 3-O-((β-d-glucopyranosyl-(1→3)-(4-O-(E-p-coumaroyl))-α-l-rhamnopyranosyl-(1→6)-β-d-galactopyranoside))-7-O-α-l-rhamnopyranoside (1) and kaempferol 3-O-((β-d-glucopyranosyl-(1→3)-(4-O-(E-p-coumaroyl))-α-l-rhamnopyranosyl-(1→6)-β-d-galactopyranoside))-7-O-α-l-rhamnopyranoside (2), together with other two known flavonols. For each compound the antioxidant activity was evaluated.