Total Synthesis of the Resorcyclic Acid Lactone Spiroketal Citreoviranol
作者:Rachelle Quach、Daniel. P. Furkert、Margaret A. Brimble
DOI:10.1021/acs.joc.6b01503
日期:2016.9.16
The first totalsynthesis of resorcyclic acid lactone spiroketal citreoviranol (1) is described. The synthesis was completed in nine steps and via Sonogashira cross-coupling, gold-catalyzed cyclization, and an unusual base-induced ketalization. The relative and absolute stereochemistry of citreoviranol was unambiguously confirmed using 2D NMR spectroscopy and X-ray crystallography.