Total Synthesis of Chivosazole F

  • Author: Angewandte Chemie International Edition
  • Published Date: 31 December 2016
  • Source / Publisher: Angewandte Chemie International Edition/Wiley-VCH
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
thumbnail image: Total Synthesis of Chivosazole F

Chivosazole F (pictured) is a highly sensitive anticancer natural product. Ian Paterson’s group at the University of Cambridge, UK, has achieved a chemoselective and mild synthesis of chivosazole F. This 31-membered polyene macrolide contains a diene, triene, and tetraene with alternating double bond geometry, along with ten stereocentres. The team could execute a range of one-pot couplings, linking up to four highly functionalized fragments in a single operation to afford the full chivosazole backbone.

A series of transformations, including two stereoselective olefinations and an oxidation, then set the stage for the final Stille coupling. This closed the 31-membered macrocycle, completing the total synthesis in 20 steps and 2.5 % overall yield.


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