Promiscuous indolyl vinyl isonitrile synthases in the biogenesis and diversification of hapalindole-type alkaloids
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The hapalindole-type alkaloids naturally show striking late stage diversification of what was believed to be a conserved intermediate, cis-indolyl vinyl isonitrile (1a). Here we demonstrate enzymatically, as well as through applying a synthetic biology approach, that the pathway generating 1a (itself, a potent natural broad‐spectrum antibiotic) is also dramatically flexible. We harness this to enable early stage diversification of the natural product and generation of a wide range of halo-analogues of cis-indolyl vinyl isonitrile. This approach allows the preparatively useful generation of a series of antibiotics with increased lipophilicity over that of the parent antibiotic.
Ittiamornkul , K , Zhu , Q , Gkotsi , D S , Smith , D R M , Hillwig , M , Nightingale , N , Goss , R J M & Liu , X 2015 , ' Promiscuous indolyl vinyl isonitrile synthases in the biogenesis and diversification of hapalindole-type alkaloids ' , Chemical Science , vol. In press . https://doi.org/10.1039/C5SC02919H
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