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Two new phenolic glycosides 1 and 2 were isolated from the ethanolic extract of Viburnum melanocarpum P.S. Hsu and identified as (7R,8S)-syringylglycerol 8-O-β-D-allopyranoside (1) and (7S,8S)-syringylglycerol 8-O-β-D-allopyranoside (2). Their structures,… Click to show full abstract
Two new phenolic glycosides 1 and 2 were isolated from the ethanolic extract of Viburnum melanocarpum P.S. Hsu and identified as (7R,8S)-syringylglycerol 8-O-β-D-allopyranoside (1) and (7S,8S)-syringylglycerol 8-O-β-D-allopyranoside (2). Their structures, including absolute configurations, were determined by spectroscopic data (1H and 13C NMR, HSQC, HMBC, and ORD) and chemical methods. In addition, compounds 1 and 2 were assayed for their free radical scavenging and α-glucosidase inhibitory activities.
Journal Title: Chemistry of Natural Compounds
Year Published: 2019
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