Two new isomeric lignans from <Emphasis Type="Italic">Eusideroxylon zwageri</Emphasis> |
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| Authors: | Shin Yoosu Cho Namseok Terazawa Minoru |
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| Institution: | (1) Department of Herbal Grop Research, NIHHS, RDA, Eumsung, Chungbuk, 369-873, Korea;(2) College of Agriculture, Life & Environment Sciences, Chungbuk National University, Cheongju, 361-763, Korea;(3) Faculty of Agriculture, Hokkaido University, Sapporo 060-8589, Japan |
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| Abstract: | Two new lignans were isolated with two other known compounds, eusiderin A and eusiderin I, from Eusideroxylon zwageri (billian). The two new lignans have isomeric structure. The structures of the new lignans were determined to be (2R,3R,4S)-2,3-dimethyl-6,7-dimethoxy-4-ethoxy (3′,4′,5′-trimethoxybenzene)-1,5-dihydroxytetralin and (2R,3S,4S)-2,3-dimethyl-6,7-dimethoxy-4-ethoxy(3′,4′,5′-trimethoxybenzene)-1,5-dihydroxytetralin.
Published in Khimiya Prirodnykh Soedinenii, No. 3, pp. 303–305, May–June, 2009. |
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| Keywords: | Eusideroxylon zwageri Lauraceae durability lignan eusiderin |
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