First example of 5/6-O-linked pseudosaccharides: synthesis of bicyclic nucleosides containing azido or extended carbohydrate moiety
作者:Joy Krishna Maity、Subhranshu Mukherjee、Michael G.B. Drew、Basudeb Achari、Sukhendu B. Mandal
DOI:10.1016/j.carres.2007.08.013
日期:2007.12
the 5,6-ether linked pseudodisaccharide 3, and pseudotrisaccharide 4. However, reaction of 1 with sodium ethoxide in ethanol afforded 2 as the sole product, elaborated to the bicyclic azidonucleosides 9 and 16. Acetylated bicyclic nucleosides 17-19 with extended carbohydrate residues have been synthesized from 3.
用氢化钠在四氢呋喃中处理衍生自d-葡萄糖的底物1提供3,6-脱水单糖2以及5,6-醚连接的假二糖3和假三糖4。但是,1与乙醇钠在乙醇中的反应提供了作为单独产物的2,其被详述为双环叠氮核苷9和16。具有延长的碳水化合物残基的乙酰化双环核苷17-19已经由3合成。