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  • Title: Total synthesis of the proposed structure for spirofungin B: a reassignment of the stereochemistry.
    Author: Zanatta SD, White JM, Rizzacasa MA.
    Journal: Org Lett; 2004 Mar 18; 6(6):1041-4. PubMed ID: 15012095.
    Abstract:
    [structure: see text] The total synthesis of the proposed structure for spirofungin B (2) is described. The data for the synthetic material did not compare with that for the natural product leading to the conclusion that the structure 2 assigned for spirofungin B is incorrect. Analysis of the NMR data reported for spirofungins A and B as well as related spiroketals allowed for the reassignment of the stereochemistry of spirofungin B to be that corresponding to 15-epi-spirofungin A (27).
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