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  • Title: Divergolide congeners illuminate alternative reaction channels for ansamycin diversification.
    Author: Ding L, Franke J, Hertweck C.
    Journal: Org Biomol Chem; 2015 Feb 14; 13(6):1618-23. PubMed ID: 25464499.
    Abstract:
    Isolation and structure elucidation of six new divergolides reveal unusual ansamycin diversification reactions including formation of the unusual isobutenyl side chain from a branched polyketide synthase extender unit, azepinone ring closure, macrolide ring contraction and formation of a seco variant by a neighboring group-assisted decarboxylation.
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