Neoclerodane diterpenoids from Croton eluteria |
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| Authors: | Vigor Claire Fabre Nicolas Fourasté Isabelle Moulis Claude |
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| Institution: | Laboratoire Pharmacophores Redox, Phytochimie et Radiobiologie, Faculté des Sciences Pharmaceutiques, 35 Chemin des Mara?chers, F-31062 Toulouse, France. vigorcl@hotmail.com |
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| Abstract: | Five new neoclerodane diterpenoids, rel-(3R,4S,5R,7R,8S,9R,10S,12R,20S)-7-acetoxy-15,16,12,20-diepoxy-3,4-dihydroxy-20-methoxyneocleroda-13(16),14-diene (1), rel-(3R,4S,5R,7R,8S,9R,10S,12R,20S)-7-acetoxy-15,16,12,20-diepoxy-3,4,20-trihydroxyneocleroda-13(16),14-diene (2), rel-(3R,4S,5S,6R,7S,8S, 9R,10S,12R,20S)-6,7-diacetoxy-3,4,15,16,12,20-triepoxy-20-hydroxyneocleroda-13(16),14-diene (3), rel-(3R,4S,5R,7R,8S,9R,10S,12R,20S)-7-acetoxy-3,4,15,16,12,20-triepoxy-20-hydroxyneocleroda-13(16),14-diene (4), and rel-(3R,4S,5R,7R,8S,9R,10S,12R,20R)-7,20-diacetoxy-3,4,15,16,12,20-triepoxyneocleroda-13(16),14-diene (5), have been isolated from the bark of Croton eluteria. The structures of the compounds 1-5 (cascarillins E-I) were determined by spectroscopic data interpretation. |
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