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Total synthesis of mevashuntin
Christopher C Nawrat1, Christopher J Moody
1School of Chemistry, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom.
Abstract:
The total synthesis of (±)-mevashuntin, a structurally unique naturally occurring pyrano-naphthoquinone-thiazolone, is described. The route is centered upon a late stage regioselective Diels-Alder reaction between two highly functionalized components, as well as an improved protocol for the one pot synthesis of benzothiazolones from ortho-bromoaryl isothiocyanates. The strategy results in a highly convergent route, providing access to the natural product in 11 steps from 3-(4-methoxyphenoxy)propanol and confirming its relative stereochemistry.
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