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    • 9. 发明申请
    • Polymer Conjugate Of Bioactive Substance Having Hydroxy Group
    • 具有羟基的生物活性物质的共轭物
    • US20120116051A1
    • 2012-05-10
    • US13319175
    • 2010-05-12
    • Masayuki KitagawaChieko SenoKeiko EbaraKazutoshi Takashio
    • Masayuki KitagawaChieko SenoKeiko EbaraKazutoshi Takashio
    • C08H1/00A61P9/10A61P17/14A61P29/00A61P35/00
    • C08G69/10A61K31/167A61K31/19A61K31/195A61K31/337A61K31/365A61K31/4745A61K31/52A61K31/573A61K31/704A61K31/7052A61K31/7068A61K47/60A61K47/645C08G69/40C08G69/48
    • A polymer conjugate of a physiologically active substance, which enables drug release independent of a biological enzyme and can be expected to have a high therapeutic effect, is demanded.Provided is a polymer conjugate of a physiologically active substance, comprising a block copolymer of a polyethylene glycol moiety and a polymer having two or more carboxy groups, in which a substituent represented by general formula (I) or general formula (II) is linked to at least one of the side-chain carboxy groups of the block copolymer via an amide bond [in the formula, R8 and R9 each independently are hydrogen atom or (C1-C6)alkyl which may have a substituent, R10 is hydrogen atom, (C1-C40)alkyl which may have a substituent, (C1-C40) aralkyl group which may have a substituent, an aromatic group which may have a substituent, an amino acid residue having a protected carboxy group, or a sugar residue which may have a substituent, CX—CY represents CH—CH or C═C (double bond), and A represents a residue obtained by removing, from a physiologically active substance having one or more hydroxy groups, one of the one or more hydroxy groups].
    • 需要生物活性物质的聚合物缀合物,其使药物释放与生物酶无关并且可以预期具有高治疗效果。 提供了一种生理活性物质的聚合物缀合物,其包含聚乙二醇部分和具有两个或更多个羧基的聚合物的嵌段共聚物,其中由通式(I)或通式(II)表示的取代基与 嵌段共聚物中的至少一个侧链羧基通过酰胺键[在式中,R8和R9各自独立地为氢原子或可具有取代基的(C1-C6)烷基,R10为氢原子( 可以具有取代基的C 1 -C 40的烷基,可以具有取代基的(C 1〜C 40)芳烷基,可以具有取代基的芳香族基,具有被保护的羧基的氨基酸残基, 取代基,CX-CY表示CH-CH或C = C(双键),A表示通过从具有一个或多个羟基的生理活性物质除去一个或多个羟基之一而获得的残基]。