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Constituents of Tabebuia guayacan: The structure of guayacanin |
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| Authors: | GD Manners L Jurd R Wong K Palmer |
| Institution: | Western Regional Research Laboratory, Agricultural Research Service, U.S. Department of Agriculture, Berkeley, CA 94710, U.S.A. |
| Abstract: | The heartwood of T. guayacan has yielded tectol and a new, novel dibenz-xanthene derivative (guayacanin). The structure of guayacanin suggests its biogenetic derivation through the condensation of prenylnaphthalene quinols. The tetrahydro derivative of the xanthene was synthesized by an analogous acid catalyzed reaction of prenylnaphthalene quinol derivatives of lapachol and 1,4 naphthalene diol. |
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