Investigation on the flavonoid composition of Aconitum angustifolium Bernh. flowers and leaves

A new flavonol glycoside, kaempferol 7-O-(6-E-p-coumaroyl)-β-d-glucopyranosyl-(1 → 3)-α-l-rhamnopyranoside 3-O-β-d-galactopyranoside (1), together with other five known compounds (2-6), were identified from the flowers and leaves of Aconitum angustifolium Bernh. Their chemical structures were elucidated by extensive NMR spectral studies, as well as by ESI-MS analysis.

A new flavonol glycoside, together with other five known compounds, were identified from the flowers and leaves of Aconitum angustifolium Bernh. Their chemical structures were elucidated by extensive NMR spectral studies, as well as by ESI-MS analysis.Highlights► Flavonol glycosides are considered chemotaxonomic markers for Aconitum genus. ► The phytochemical study of A. angustifolium flowers and leaves was performed. ► One new kaempferol glycoside was identified. ► Its antioxidant activity was assayed.