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One new diacylglycoside named lyciumaside (1) and a new sesquiterpene lactone named lyciumate (2) were isolated from Lycium shawii ROEM. & SCHULT. The structures of the two new compounds were elucidated based on 1D-( 1 H-and 13 C-NMR and NOE) and 2D-NMR (COSY, HSQC, and HMBC) spectroscopic techniques, and mass spectrometry (ESI-MS). Preliminary evaluations demonstrated lyciumaside (1) possesses strong antioxidant activity with an IC 50 = 30 lg/ml (80% inhibition) while it was inactive in a-glucosidase and urease enzymes assays.

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