Neue furanoeremophilane und weitere inhaltsstoffe aus südafrikanischen Senecio-arten |
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Authors: | Ferdinand Bohlmann Christa Zdero Dieter Bergert Albert Suwita Pradip Mahanta C. Jeffrey |
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Affiliation: | 1. Institut für Organische Chemie der Technischen Universität Berlin, Straße des 17. Juni 135, D-1000 Berlin 12, W. Germany;2. Royal Botanic Gardens, Kew, Richmond, Surrey, TW9 3AB, U.K. |
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Abstract: | The investigation of further 27 South African and a few other Senecio species afforded in addition to known compounds 18 new furanoeremophilanes, most of them being cacalol derivatives, two new lactones, a new eudesmane derivative and four acyl pyrrole derivatives. The structures are elucidated by spectroscopic methods mainly. The chemical results on more than 140 species now available indicate much of chemotaxonomic interest. Together with the chemical data on related genera, the taxonomic situation of the subtribe Senecioninae is discussed in connection with the proposed new classification. The chemical data are in good agreement with this new arrangement. |
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Keywords: | Compositae new furanoeremophilanes new cacalol derivatives new acylpyrroles chemotaxonomy. |
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