Synthesis of a tetrasaccharide donor corresponding to the O-specific polysaccharide of Shigella dysenteriae type 1
作者:Vince Pozsgay、Cornelis P.J. Glaudemans、John B. Robbins、Rachel Schneerson
DOI:10.1016/0008-6215(83)85006-x
日期:1993.6
-(4-methoxybenzyl)-1-thio-beta-D-galactopyranoside, and 2,4-di-O-benzoyl-3-O-chloroacetyl-alpha-L-rhamnopyranosyl chloride. Compound 1 corresponds to a complete tetrasaccharide repeating unit of the O-specific polysaccharide of the lipopolysaccharide of Shigella dysenteriae type 1.
O-(2,4-二-O-苯甲酰基-3-O-氯乙酰基-α-L-鼠李糖基)-(1-> 2)-O-(3,4,6-三-O-苯甲酰基-α -D-吡喃半乳糖基)-(1-> 3)-O-(2-乙酰氨基-4,6-二-O-乙酰基-2-脱氧-α-D-吡喃葡萄糖基)-(1-> 3)-使用以下单糖单元以逐步方式合成2,4-二-O-苯甲酰基-α-L-鼠李吡喃糖基三氯乙酰亚胺酸酯(1):2-(三甲基甲硅烷基)乙基2,4-二-O-苯甲酰基-α- L-鼠李吡喃糖苷,2-叠氮基-4,6-O-亚苄基-3-O-氯乙酰基-2-脱氧-β-D-吡喃葡萄糖基氯,甲基3,4,6-三-O-苯甲酰基-2-O- (4-甲氧基苄基)-1-硫代-β-D-吡喃半乳糖苷和2,4-二-O-苯甲酰基-3-O-氯乙酰基-α-L-鼠李糖基氯。化合物1对应于痢疾志贺氏菌1型脂多糖的O-特异性多糖的完整四糖重复单元。