Abstract
A new phenolic glycoside 1, together with two known compounds (2, 3), has been isolated from the ethanolic extract of Polygonatum sibiricum F. Delaroche. Its structure was elucidated as (2R)-syringylpropane-1,3-diol-1-O-β-D-glucopyranoside by spectroscopic data (1H NMR, 13C NMR, HSQC, HMBC, and HR-ESI-MS) and chemical evidence. In the in vitro assay, compound 1 displayed potent inhibitory activity against α-glucosidase with an IC50 value of 10.90 μM.
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