作者:Adam R. Yeager、Geanna K. Min、John A. Porco,、Scott E. Schaus
DOI:10.1021/ol0618252
日期:2006.10.1
Aryl ether C-glycoside scaffolds have been prepared from tri-O-acetyl-D-glucal by C-glycosylation followed by allylic substitution with phenols mediated by Pd(0). The aryl ethers were subjected to either [3,3]-sigmatropic rearrangement to produce 3-pyranyl-phenols or Au(III)-mediated ring contraction to create highly substituted tetrahydrofurans. [structure: see text]
芳基醚C-糖苷支架已由C-糖基化,然后由Pd(0)介导的苯酚进行烯丙基取代,由三-O-乙酰基-D-葡糖醛制备。使芳基醚经历[3,3]-σ重排以产生3-吡喃基-酚或Au(III)介导的环收缩以产生高度取代的四氢呋喃。[结构:见文字]