The present invention relates to biodegradable polymer bonded Pt (IV) anticancer drug nano micelle and preparation method thereof. The structure of cancer drugs, are as follows: the biodegradable polymer is three block copolymer of polyethylene glycol -b- polyester -b- poly lysine; platinum complexes Pt (IV) by alpha, Omega amino side dicarboxylic acid and polymer carrier poly lysine block is connected with the. The carrier has no toxicity and easy to dissolve in water, and platinum (IV) complexes in aqueous phase reaction; can be formed through the self-assembly of nano micelle formulation; platinum (IV) complexes with reduction of platinum (II), or cisplatin, carboplatin or oxaliplatin, anticancer efficacy is recognized; easy synthesis; platinum (IV). The reduction potential is low, so in cancer cells rapidly reduced to platinum (II) effect; platinum (IV) connected to the polymer side chain rather than at the chain end, a polymer chain can be connected to multiple platinum (IV), platinum content up to 10-20%.
【技术实现步骤摘要】
【技术保护点】
1.一种生物降解的高分子键合Pt(IV)类抗癌药物,其特征在于,其结构可以用下式表示:其中,生物降解高分子是三嵌段共聚物聚乙二醇-b-聚酯-b-聚赖氨酸(MPEG-b-PES-b-PLL),聚乙二醇嵌段的数均分子量1000-5000;聚酯嵌段为聚ε-己内酯、聚丙交酯或ε-己内酯与丙交酯的无规共聚物,数均分子量1000-5000;聚赖氨酸嵌段的数均分子量1000-5000;其中,Pt(IV)是轴向双羟基配位的四价铂配合物铂(IV),简写作Pt(IV)-(OH)2,包括(1)顺铂的双羟基铂(IV)配合物,简写为Pt(IV)-(OH)2-A;(2)卡铂的双羟基铂(IV)配合物,简写为Pt(IV)-(OH)2-B和(3)奥沙利铂的双羟基铂(IV)配合物,简写为Pt(IV)-(OH)2-C;它们的结构式如下:它们分别通过丁二酸、戊二酸、己二酸或邻苯二甲酸作为间隔基连接在聚合物的聚赖氨酸嵌段的侧氨基上。
【技术特征摘要】
【专利技术属性】
技术研发人员:景遐斌,郑勇辉,肖海华,柳时,胡秀丽,齐若谷,黄宇彬,
申请(专利权)人:中国科学院长春应用化学研究所,
类型:发明
国别省市:82
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。