[EN] SYNTHESIS OF DISACCHARIDE BLOCKS FROM NATURAL POLYSACCHARIDES FOR HEPARAN SULFATE OLIGOSACCHARIDE ASSEMBLY<br/>[FR] SYNTHÈSE DE BLOCS DE DISACCHARIDE À PARTIR DE POLYSACCHARIDES NATURELS POUR ASSEMBLAGE D'OLIGOSACCHARIDE DE TYPE SULFATE D'HÉPARANE
申请人:CALIFORNIA INST OF TECHN
公开号:WO2020132625A1
公开(公告)日:2020-06-25
Methods for the preparation of oligosaccharide products from polysaccharide starting materials are disclosed. The methods include: hydrolyzing a glucosamine-containing polysaccharide starting material, such as heparin or heparosan, under conditions sufficient to form an oligosaccharide intermediate (e.g., a GlcN-IdoA disaccharide intermediate or a GlcA-GlcN disaccharide intermediate), and converting the oligosaccharide intermediate to the oligosaccharide product. Conversion of the oligosaccharide intermediates to the oligosaccharide products may include one or more esterification, acylation, epimerization, protection, and deprotection steps. Preparation of higher-order oligomers is described, as well as methods for selective oligosaccharide sulfation.
揭示了从多糖起始材料制备寡糖产物的方法。这些方法包括:在足以形成寡糖中间体(例如GlcN-IdoA二糖中间体或GlcA-GlcN二糖中间体)的条件下水解含有葡萄糖胺的多糖起始材料,然后将寡糖中间体转化为寡糖产物。将寡糖中间体转化为寡糖产物可能包括一个或多个酯化、酰化、差向异构化、保护和去保护步骤。描述了更高阶寡聚体的制备方法,以及选择性寡糖硫酸化的方法。