Xanthones and biflavonoids from Garcinia densivenia stem bark |
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| Authors: | Peter G Waterman Elizabeth G Crichton |
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| Institution: | Phytochemistry Research Laboratory, Department of Pharmaceutical Chemistry, University of Strathclyde, Glasgow, GI IXW, U.K. |
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| Abstract: | The stem bark of a species of Garcinia (Guttiferae), provisionally identified as G. densivenia, has yielded a xanthone and two biflavonoids. The xanthone has been characterized as a novel 1,3,5,6-tetraoxygenated compound and has been assigned the trivial name pyranojacareubin (1,5-dihydroxy-6′,6′-dimethylpyrano (2′,3′:3,2)-6″,6″-dimethylpyrano (2″,3″:6,7)-xanthone). The biflavonoids were identified as morelloflavone and its methyl ether derivative, O-methyl fukugetin. |
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| Keywords: | Guttiferae xanthones pyranojacareubin biflavonoids morelloflavone |
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