Abstract
Four new diastereoisomeric neolignan glycosides (1–4) along with nine known lignan glycosides (5–13) were isolated from the root bark of Lycium chinense Mill. Their structures with absolute configurations were elucidated on the basis of NMR spectroscopy, ECD, Mo2(OAc)4-induced ECD spectra, enzymatic hydrolysis and acid hydrolysis. The isolated compounds were evaluated for their α-glucosidase inhibitory activity. Compounds 8 and 13 exhibited moderate inhibitory activities against α-glucosidase with IC50 values of 26.82 ± 2.71 and 43.14 ± 2.81 μg/mL.
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