Constituents of tabebuia guayacan—II : The structure of guayin |
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| Authors: | G.D. Manners L. Jurd R. Wong K. Palmer |
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| Affiliation: | Western Regional Research Laboratory, Agricultural Research Service, U.S. Department of Agriculture, Berkeley, CA 94710, U.S.A. |
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| Abstract: | A unique oxalactone dibenzxanthone, guayin, has been isolated from the heartwood of T. guayacan and structurally identified. A biomimetic synthesis of the dihydro derivative of guayin, based upon the probable biosynthetic origin of guayin from the dibenzxanthene guayacanin, has been successfully achieved. |
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