A New Flavonoid Glycoside from Scutellaria barbata

A new flavonoid glycoside 1, together with nine known compounds, has been isolated from Scutellaria barbata D. Don. The structure of compound 1 was elucidated as acacetin 7-O-β-D-galactopyranosyl(1→2)-β-Dglucopyranoside by spectroscopic data (1D and 2D NMR methods) and chemical evidences. Additionally, compound 1 displayed potent inhibitory activity against α-glucosidase with an IC50 value of 8.9 μM in vitro.