Synthesis of methyl (5Z,9Z,17R)-17-methylnonadeca-5,9-dienoate, the (R)-enantiomer of the structure proposed for a metabolite of the Philippine sponge Plakinastrella sp. |
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| Authors: | M Takagi H Takikawa K Mori |
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| Institution: | Department of Chemistry, Faculty of Science, Science University of Tokyo, Japan. |
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| Abstract: | The (R)-enantiomer (1) of methyl (5Z,9Z)-17-methylnonadeca-5,9-dienoate, the structure proposed for a metabolite of the Philippine sponge, Plakinastrella sp., was synthesized. The 1H- and 13C-NMR spectra of the synthetic material were different from those reported for the natural product. The proposed structure 1 is therefore incorrect. |
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