Abstract
A new lignan glycoside, 5-(3″,4″-dimethoxy-phenyl)-3-hydroxy-3-(4′-hydroxy-3′-methoxybenzyl)-4-hydroxymethyl-dihydrofuran-2-one 4′-O-α-l-rhamnopyranoside (1), with seven known compounds, compound 2, koaburside, icariside E4, cleomiscosin C, cleomiscosin D, scopoletin, and 5′-demethylaquillochin, were isolated from the EtOH extract of the wood of Acer saccharum (Aceraceae). Their structures were determined by 1D and 2D nuclear magnetic resonance (NMR) and mass spectroscopy analysis. All of the isolated compounds, 1–8, were tested for their antioxidant activity in superoxide dismutase (SOD)-like assay.
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Acknowledgments
The authors are grateful to Ms. Y. Watanabe, MIC Co. Ltd., Mr. L. Bergeron, L.B. Maple Treat Inc., and Dr. T. Ishiguro, BioPharm Toyono, for supplying the material of A. saccharum.
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Yoshikawa, K., Kawahara, Y., Arihara, S. et al. Aromatic compounds and their antioxidant activity of Acer saccharum . J Nat Med 65, 191–193 (2011). https://doi.org/10.1007/s11418-010-0450-5
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DOI: https://doi.org/10.1007/s11418-010-0450-5