Xanthones from stems of Hypericum chinense |
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| Authors: | Tanaka Naonobu Takaishi Yoshihisa |
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| Institution: | Graduate School of Pharmaceutical Sciences, University of Tokushima. Shomachi, Tokushima, Japan. |
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| Abstract: | Six new xanthones, 4,6-dihydroxy-2,3-dimethoxyxanthone (1), 2,6-dihydroxy-3,4-dimethoxyxanthone (2), 6-hydroxy-2,3,4-trimethoxyxanthone (3), 3,6-dihydroxy-1,2-dimethoxyxanthone (4), 4,7-dihydroxy-2,3-dimethoxyxanthone (5), and 3,7-dihydroxy-2,4-dimethoxyxanthone (6) were isolated from the stems of Hypericum chinense, together with four known xanthones. Their structures were established based on spectroscopic studies. |
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