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。