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.

中文翻译：

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黄芩中一种新的黄酮苷

从 Scutellaria barbata D. Don 中分离出一种新的黄酮苷 1 以及九种已知化合物。通过光谱数据（一维和二维核磁共振方法）和化学证据，化合物 1 的结构被阐明为金合欢苷 7-O-β-D-吡喃半乳糖基（1→2）-β-D-吡喃葡萄糖苷。此外，化合物 1 显示出对 α-葡萄糖苷酶的有效抑制活性，体外 IC50 值为 8.9 μM。