Labdane derivatives from Planaltoa lychnophoroides |
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Authors: | Ferdinand Bohlmann Christa Zdero Harold Robinson Robert M. King |
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Affiliation: | 1. Smithsonian Institution, Washington, DC 20560, U.S.A. |
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Abstract: | The investigation of a representative of the small Brazilian genus Planaltoa afforded, in addition to known compounds, a new toxol derivative and two ent-labdane derivatives, closely related to austrofolin. The structures were elucidated by high field 1H NMR spectroscopy. The chemotaxonomic situation is discussed briefly. |
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Keywords: | Compositae Eupatorieae diterpenes toxol derivative. |
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