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    • 5. 发明授权
    • Dextran derivatives, preparation and medicinal applications
    • 葡聚糖衍生物,制剂和药物应用
    • US06646120B1
    • 2003-11-11
    • US09367111
    • 2000-09-26
    • Frederic ChaubetRemi HuynhLatifa DahriJose CorreiaMarcel JozefowiczJacqueline Jozefonvicz
    • Frederic ChaubetRemi HuynhLatifa DahriJose CorreiaMarcel JozefowiczJacqueline Jozefonvicz
    • C08B3702
    • C08B37/0021
    • The invention concerns dextran derivatives, their applications as medicines with specific biological action, and their preparation method. Said derivatives correspond to the general formula DMCaBbSUcSd, in which: D represents a polysaccharide chain, preferably consisting of sequences of glucoside units, MC represents methylcarboxylate groups, B represents carboxymethylbenzylamide groups, Su represents sulphate groups, S represents sulphonate groups, a, b, c and d represent the degree of substitution (ds), respectively in groups, MC, B, Su and S; a being equal to 0 or ≧0.3, b being equal to 0 or ≧0.1, c being equal to 0 or ≧0.1 and d being equal to 0 or ≧0.1 provided that when d=0, a and/or b are not equal to 0, said products having homogeneity of chain size distribution, illustrated by a gauss elution profile symmetrical in high performance steric exclusion chromatography, and homogeneity in the distribution of charged chemical groups, illustrated by an elution profile with a single symmetrical peak in low pressure ion-exchange chromatography.
    • 本发明涉及葡聚糖衍生物,它们作为具有特定生物作用的药物的应用及其制备方法。 所述衍生物对应于通式DMCaBbSUcSd,其中:D表示多糖链,优选由葡萄糖苷单元序列组成,MC表示甲基羧酸酯基,B表示羧甲基苄基酰胺基,Su表示硫酸基,S表示磺酸酯基,a,b, c和d分别代表组,MC,B,Su和S的取代度(ds); a等于0或> = 0.3,b等于0或> = 0.1,c等于0或> = 0.1,d等于0或> = 0.1,条件是当d = 0时,a和/或 b不等于0,所述产物具有链尺寸分布的均匀性,由高效空间排阻色谱中对称的高斯洗脱曲线所示,以及带电化学基团分布的均匀性,通过具有单个对称峰的洗脱曲线 在低压离子交换层析中。