The invention provides a fluorinated chitosan derivative as a drug carrier, which has the following structure: a fluorine-containing compound covalently attached to the backbone of chitosan. The chitosan has a molecular weight in the range of 1000-5000000, a degree of deacetylation of not less than 55%, and a viscosity in the range of 25-1000 cps. The fluorine-containing compound is a fluorine-containing aliphatic chain shown by the following chemical formula (I)
or an aromatic ring with functional groups shown by the following formula (II)
wherein Ri is halogen (fluorine, chlorine, bromine, iodine), or a halogen-substituted alkane, cycloalkane, aldehyde group, carboxyl group, alkenyl group, alkynyl group, hydroxyl group, sulfonyl chloride, sulfonic acid bond or mercapto group, for interacting with a primary amino group. The compounds of the present invention can be universally bound to a variety of drugs to promote drug absorption and bioavailability, and reduce toxicity.
本发明提供了一种作为药物载体的
氟化
壳聚糖衍
生物,其结构如下:一种含
氟化合物共价连接到
壳聚糖的骨架上。
壳聚糖的分子量在 1000-5000000 之间,脱乙酰度不低于 55%,粘度在 25-1000 cps 之间。含
氟化合物是由以下
化学式(I)表示的含
氟脂肪族链
或带有下式(II)所示官能团的芳香环
其中 Ri 为卤素(
氟、
氯、
溴、
碘),或卤素取代的烷基、环烷基、醛基、羧基、 烯基、炔基、羟基、
磺酰氯、
磺酸键或巯基,用于与伯
氨基相互作用。本发明的化合物可与多种药物普遍结合,以促进药物的吸收和
生物利用度,并降低毒性。