A tetravalent platinum compound-bicyclic double-bond-containing amphiphilic polymer prodrug, which has the structure as shown in formula (I):
when m=1,
represents
when m=0,
represents
R represents —CH3 or —CH2CH3; L1 and L2 independently represent Cl, N3, NO3,
and n is from 10 to 80. A preparation method of the prodrug is also disclosed. The method includes a step of reacting an axially dihydroxy-coordinated tetravalent platinum compound with a bicyclic double-bond-containing orthoester precursor. In addition, a nano-micelle formed by the prodrug and an application thereof are further disclosed. The amphiphilic polymer prodrug and the micelle formed therefrom have pH hypersensitivity and reduction dual responsiveness.
一种四价
铂化合物-含双环双键两亲聚合物原药,其结构如式(I)所示:
当 m=1、
代表
当 m=0 时、
代表
R 代表-
CH3 或-CH2 ;L1 和
L2 独立地代表 Cl、N3、
NO3、
n 为 10 至 80。还公开了一种原药的制备方法。该方法包括将轴向二羟基配位的四价
铂化合物与含双环双键的正酯前体反应的步骤。此外,还进一步公开了由原药形成的纳米胶束及其应用。两亲性聚合物原药及其形成的胶束具有 pH 超敏性和还原双重响应性。