New Oligosaccharide Analogues: Non-Glycosidically Linked Thioether-Bridged Pseudodisaccharides
作者:Ian Cumpstey
DOI:10.1055/s-2006-947338
日期:2006.7
The synthesis of six disaccharide analogues is reported. The pseudodisaccharides each consist of two monosaccharide residues linkednon-glycosidically via a thioether functionality; both C 2 -symmetric and unsymmetrically substituted examples are described. The synthesis was achieved by first introducing an acetate-protected sulfur into partially protected carbohydrates by S N 2 displacement of sulfonate
报道了六种二糖类似物的合成。每个假双糖由两个单糖残基组成,通过硫醚官能团非糖苷连接;描述了C 2 对称和不对称取代的实例。该合成是通过首先通过硫代乙酸酯取代磺酸酯的 SN 2 将乙酸酯保护的硫引入部分保护的碳水化合物中来实现的。硫的脱乙酰之后用另一种碳水化合物磺酸盐衍生物处理,第二次 SN 2 置换得到假双糖产物。