Process for the synthesis of semisynthetic glycosaminoglycans containig alpha-L-galacturonic acid substituted with nucleophilic radicals in position 3
申请人:ALFA WASSERMANN S.p.A.
公开号:EP0618235A1
公开(公告)日:1994-10-05
A process for the synthesis of semi-synthetic glycosaminoglycans of general formula III
is described in which one of the saccharide units characteristic of glycosaminoglycans with heparin or heparan structure, more specifically that of α-L-iduronic-2-O-sulfate acid, has undergone a structural modification, entirely or in part, with transformation into α-L-galacturonic acid substituted in position 3 with nucleophilic radicals of general formula II
Said process is carried out by treating glycosaminoglycans with heparin or heparan structure by means of a nucleophilic reagent in alkaline medium.
通式 III 的半合成糖胺聚糖的合成工艺
描述了具有肝素或肝糖结构的糖胺聚糖所特有的一个糖单位,更具体地说是 α-L-iduronic-2-O-sulfate 酸的糖单位,在结构上全部或部分发生了改变,变成了在第 3 位被通式 II 的亲核基取代的 α-L-半乳糖醛酸。
上述过程是在碱性介质中通过亲核试剂处理具有肝素或肝素结构的糖胺聚糖。