New labdane derivatives from Madia sativa |
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| Authors: | Ferdinand Bohlmann Jasmin Jakupovic Robert M King Harold Robinson |
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| Institution: | 1. Department of Botany, Smithsonian Institution, Stop No. 166, Washington DC 20560, U.S.A. |
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| Abstract: | The aerial parts of Madia sativa afforded, in addition to known compounds, two labdane derivatives whose structures were elucidated by spectroscopic methods. The absolute configuration was determined by chemical transformations. From the roots a new tremetone derivative was isolated. The constituents indicated close relationships of Madia to Hemizonia. |
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| Keywords: | Compositae diterpenes labdane derivatives |
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