Enantiospecific Synthesis of Pseudoacarviosin as a Potential Antidiabetic Agent
作者:Tony K. M. Shing、Hau M. Cheng、Wai F. Wong、Connie S. K. Kwong、Jianmei Li、Clara B. S. Lau、Po Sing Leung、Christopher H. K. Cheng
DOI:10.1021/ol8010503
日期:2008.7.17
A pseudo-1,4'- N-linked disaccharide, pseudoacarviosin 5, was constructed via a key palladium-catalyzed coupling reaction of pseudoglycosyl chloride 8 (prepared from d-glucose via a novel direct intramolecular aldol addition in 12 steps) and pseudo-4-amino-4,6-dideoxy-alpha- d-glucose 9 (prepared from l-arabinose via an unusual trans-fused isoxazolidine-selective intramolecular nitrone-alkene cycloaddition