Phytochemical investigation of the ethyl acetate extract of Styrax annamensis leaves has led to the isolation and determination of a new lignan, 7R,8S,7′S,8′R-3,4,3′-trimethoxy-9,4′,7′-trihydroxy-8.8′,7.O.9′-lignan (1), together with a known compound, 4-ketopinoresinol (2). Compound 2 was isolated from the genus Styrax for the first time, and showed moderate activity to capture the DPPH radical with the IC50 value of 56.74 ± 0.79 μg/mL.
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ACKNOWLEDGMENT
This research was supported by a project from the Institute of Chemistry, VAST, under Grant No. CSCL06.01/22-23.
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Published in Khimiya Prirodnykh Soedinenii, No. 4, July–August, 2022, pp. 518–520.
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Tra, N.T., Thuy, N.N.N., Van Tuyen, N. et al. A New Lignan from the Leaves of Styrax annamensis. Chem Nat Compd 58, 607–609 (2022). https://doi.org/10.1007/s10600-022-03752-4
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DOI: https://doi.org/10.1007/s10600-022-03752-4