NAP Ether Mediated Intramolecular Aglycon Delivery: A Unified Strategy for 1,2-<i>cis</i>-Glycosylation
作者:Akihiro Ishiwata、Yuichi Munemura、Yukishige Ito
DOI:10.1002/ejoc.200800249
日期:2008.9
of 1,2-cis-glycosides through naphthylmethyl (NAP) ether mediated intramolecular aglycon derivery (IAD) has been developed. Stereospecific constructions of various 1,2-cis linkages, as in β-mannopyrano-, β-arabinofurano-, and α-glucopyranosides, were achieved through NAP-IAD. This methodology was successfully applied to the synthesis of Glca(1→2)-Glcα(1→3)-Glcα(1→3)Man (Glc 3 Man 1 ), the nonreducing
已经开发了一种通过萘甲基 (NAP) 醚介导的分子内苷元衍生 (IAD) 立体选择性构建 1,2-顺式糖苷的方法。通过 NAP-IAD 实现了各种 1,2-顺式连接的立体特异性构建,如β-吡喃甘露糖苷、β-阿拉伯呋喃糖苷和α-吡喃葡萄糖苷。该方法成功应用于合成十四糖Glc 3 Man 9 GlcNAc 2 的非还原末端结构Glca(1→2)-Glcα(1→3)-Glcα(1→3)Man (Glc 3 Man 1 ) ,所有 N 连接聚糖的常见前体。