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公开(公告)号:US20140199349A1
公开(公告)日:2014-07-17
申请号:US14128376
申请日:2011-12-29
申请人: Jean-Dean Yang , Ayi-Man Chou , Jui-Hsiang Chen , Hsia-Wei Liu , Shian-Jy Wang , Tse-Min Teng , Hsiang-Fa Liang , Ming-Cheng Wei , Maggie J.M. Lu
发明人: Jean-Dean Yang , Ayi-Man Chou , Jui-Hsiang Chen , Hsia-Wei Liu , Shian-Jy Wang , Tse-Min Teng , Hsiang-Fa Liang , Ming-Cheng Wei , Maggie J.M. Lu
IPC分类号: A61K47/36 , A61K9/107 , A61K31/704
CPC分类号: A61K47/36 , A61K9/1075 , A61K31/704 , C08B37/0072 , C08H1/00
摘要: Disclosed is a pH-sensitive hyaluronic acid derivative, comprising at least one repeat unit as shown in the following formula (I), wherein HA represents a unit comprising N-acetyl-D-glucosamine and D-glucuronic acid, q represents an integer of 2 to 10,000; A represents a biocleavable linkage comprising at least one of hydrazone, acetal, ketal and imine; M represents at least one of a hydrophobic fragment, a hydrophilic fragment, and an amphiphilic fragment, and p represents the number of [A-M] directly grafted onto each HA unit, p represents an integer of 0 to 4, and the p of each HA unit is not 0 at the same time.
摘要翻译: 公开了一种pH敏感性透明质酸衍生物,其包含如下式(I)所示的至少一个重复单元,其中HA表示包含N-乙酰基-D-葡糖胺和D-葡萄糖醛酸的单元,q表示 2至10,000; A表示包含腙,缩醛,缩酮和亚胺中的至少一种的生物可分离性连接; M表示疏水性片段,亲水性片段和两亲性片段中的至少一种,p表示直接接枝到每个HA单元上的[AM]的数目,p表示0〜4的整数,各HA的p 单位同时不是0。