An Expedient Total Synthesis of Chivosazole F: an Actin-Binding Antimitotic Macrolide from the Myxobacterium $\textit{Sorangium Cellulosum}$
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Peer-reviewed
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Article
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Abstract
A unified strategy for the chemical synthesis of the chivosazoles is described. This strategy is based on two closely related approaches involving the late-stage installation of the isomerization-prone (2Z,4E,6Z,8E)-tetraenoate motif, and an expedient fragment-assembly procedure. The result is a highly convergent total synthesis of chivosazole F through the orchestration of three mild Pd/Cu-mediated Stille cross-coupling reactions, including the use of a one-pot, site-selective, three-component process, in combination with controlled installation of the requisite alkene geometry.
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Keywords
macrocycles, macrolides, polyenes, Stille cross-coupling, total synthesis
Journal Title
Angewandte Chemie International Edition
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Journal ISSN
1433-7851
1521-3773
1521-3773
Volume Title
56
Publisher
Wiley
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Sponsorship
Engineering and Physical Sciences Research Council (EP/F025734/1)
We thank Sidney Sussex College Cambridge (C.T. So Studentship to J.J.), the Cambridge Overseas Trust (M.L., L.J.G.), the EPSRC (S.B.J.K. EP/F025734/1)) and Prof. David Spring for support, and the EPSRC UK National Mass Spectrometry Facility at Swansea University for mass spectra.