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Keywords:

  • drug discovery;
  • metathesis;
  • natural products;
  • rhizoxin;
  • total synthesis
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Key steps in this total synthesis of the antimitotic natural product WF-1360F (3) include the formation of the macrocycle through ring-closing alkyne metathesis and the subsequent conversion of the ensuing alkyne moiety into an E-configured double bond. As illustrated by the synthesis of 4, the macrocyclic vinyl iodide 2 can also serve as a common precursor for the synthesis of side-chain-modified rhizoxin analogues (see scheme; TIPS=triisopropylsilyl).