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An enantioselective total synthesis of aspergillides A and B has been accomplished based on a unified strategy, wherein a hydroxy-directed, highly chemoselective olefin cross-metathesis and a diastereoselective intramolecular oxa-conjugate cyclization were employed to forge the 2,6-substituted tetrahydropyran substructure.
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Fuwa et al. (2010) studied this question.
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