申请人:Soula Gerard
公开号:US20080234227A1
公开(公告)日:2008-09-25
The invention relates to a dextran functionalized by at least one hydrophobic alpha-amino acid radical, said alpha-amino acid being grafted or bonded to the dextran by a bonding arm and a functional group. A hydrophobic amino acid radical is understood as being the product of coupling between the amine of the amino acid and an acid carried by the bonding arm, said dextran being amphiphilic at neutral pH. In an embodiment, the hydrophobic amino acid is selected from tryptophan derivatives, such as tryptophan, tryptophanol, tryptophanamide, 2-indole ethyl-amine and their alkaline cation salts. The present invention relates also to a pharmaceutical composition comprising one of the dextrans according to the invention.
该发明涉及至少一个疏水性α-氨基酸基团功能化的葡聚糖,所述α-氨基酸通过一个连接臂和一个功能基团被嫁接或结合到葡聚糖上。疏水性氨基酸基团被理解为氨基酸的胺基与连接臂携带的酸之间的偶联产物,所述葡聚糖在中性pH下为两性的。在一种实施例中,疏水性氨基酸来自色氨酸衍生物,例如色氨酸、色氨醇、色氨酰胺、2-吲哚乙基胺及其碱性阳离子盐。本发明还涉及包含根据本发明的葡聚糖之一的药物组合物。