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Finding its true identity: The complete stereostructure of the marine pentacyclic triterpene polyether (+)-enshuol is shown. Asymmetric total synthesis confirmed the configuration predicted on the basis of NMR spectroscopic data of the previously synthesized natural products aurilol and glabrescol, substructures of which are present in enshuol, and disproved an earlier prediction based on biogenetic considerations.
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Morimoto et al. (2007) studied this question.
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