Oxidative Decarboxylation as a Route to Ketene Acetals: Assignment of Relative and Absolute Stereochemistry to the Fungal Metabolite Benesudon by Total Synthesis
作者:Derrick L. J. Clive、Minaruzzaman
DOI:10.1021/ol702509a
日期:2007.12.1
The unusual ketene acetal benesudon, which is a bioactive fungal metabolite, was synthesized from d-glucose by a route involving radical cyclization to form the five-membered ring and oxidative decarboxylation to generate the key central double bond. The originally suggested stereochemistry for the quaternary center C(5) must be revised, as both possibilities were prepared and a comparison with an