Hydrolytically degradable alkylene oxide based polymers
    1.
    发明申请
    Hydrolytically degradable alkylene oxide based polymers 审中-公开
    水解可降解的烯化氧基聚合物

    公开(公告)号:US20060239961A1

    公开(公告)日:2006-10-26

    申请号:US10371996

    申请日:2003-02-14

    IPC分类号: A61K31/785 C08G8/28

    摘要: The present invention provides a water soluble, nonpeptidic polymer comprising two or more alkylene oxide-based oligomers linked together by hydrolytically degradable linkages such as carbonates. Typically, the oligomer portion of the polymer is an amphiphilic triblock copolymer having a central propylene oxide block or butylene oxide block positioned between two ethylene oxide blocks. The polymer can be hydrolytically degraded into oligomers under physiological conditions. In aqueous media, the polymer preferably forms thermally reversible, hydrolytically degradable hydrogels that can be used, for example, for drug delivery and related biomedical applications.

    摘要翻译: 本发明提供了一种水溶性非肽性聚合物,其包含通过可降解水解的键如碳酸酯连接在一起的两个或多个环氧烷基低聚物。 通常,聚合物的低聚物部分是具有位于两个环氧乙烷嵌段之间的中心环氧丙烷嵌段或环氧丁烷嵌段的两亲性三嵌段共聚物。 聚合物可以在生理条件下水解降解成低聚物。 在水性介质中,聚合物优选形成热可逆的水解可降解的水凝胶,其可用于例如药物递送和相关的生物医学应用。

    Branched polymers and their conjugates
    2.
    发明申请
    Branched polymers and their conjugates 有权
    支链聚合物及其共轭物

    公开(公告)号:US20060178475A1

    公开(公告)日:2006-08-10

    申请号:US11336695

    申请日:2006-01-20

    摘要: The present invention is directed to branched reactive water-soluble polymers comprising at least two polymer arms, such as poly(ethylene glycol), attached to a central aliphatic hydrocarbon core molecule through heteroatom linkages. The branched polymers bear at least one functional group for reacting with a biologically active agent to form a biologically active conjugate. The functional group of the branched polymer can be directly attached to the aliphatic hydrocarbon core or via an intervening linkage, such as a heteroatom, -alkylene-, —O-alkylene-O—, -alkylene-O-alkylene-, -aryl-O—, —O— aryl-, (—O-alkylene-)m, or (-alkylene-O—)m linkage, wherein m is 1-10.

    摘要翻译: 本发明涉及包含通过杂原子键连接到中心脂族烃核心分子的至少两个聚合物臂(例如聚(乙二醇))的支链反应性水溶性聚合物。 支链聚合物具有至少一个用于与生物活性剂反应以形成生物活性缀合物的官能团。 支链聚合物的官能团可以直接连接到脂族烃核心上或通过插入键如杂原子, - 亚烷基 - , - - 亚烷基-O-, - 亚烷基-O-亚烷基 - , - 芳基 - O-,-O-芳基 - ,( - - 亚烷基 - ) - 亚烷基或( - 亚烷基-O - ) - ,其中m为1-10。

    Hydrolytically degradable polymers and hydrogels made therefrom
    3.
    发明申请
    Hydrolytically degradable polymers and hydrogels made therefrom 有权
    水解可降解的聚合物和水凝胶

    公开(公告)号:US20060160983A1

    公开(公告)日:2006-07-20

    申请号:US11377973

    申请日:2006-03-17

    IPC分类号: C08G64/00

    摘要: A water soluble polymer is provided having two or more oligomers linked to each other by hydrolytically degradable carbonate linkages. The polymer can be hydrolytically degraded into oligomers (e.g., oligomers of ethylene oxide) under physiological conditions. The polymer can be conjugated to biologically active agents such as proteins or peptides to impart improved water solubility, reduced immunogenicity, reduced rate of renal clearance, and increased stability. The polymer is useful in making hydrolytically degradable hydrogels which can be used in drug delivery and related biomedical applications. On example of the polymer is a poly (ether carbonate) of the formula X—O—[(—CH2CH2-0-)n—CO2—]n—(CH2CH2))n-y where X and Y are independently H, alkyl, alkenyl, aryl, or a reactive moiety, and at least one of X and Y is a reactive moiety.

    摘要翻译: 提供了具有两个或多个通过可水解降解的碳酸酯键相互连接的低聚物的水溶性聚合物。 在生理条件下,聚合物可以水解降解成低聚物(例如环氧乙烷的低聚物)。 聚合物可以与生物活性剂如蛋白质或肽缀合以赋予改善的水溶性,降低的免疫原性,降低的肾清除率和增加的稳定性。 该聚合物可用于制备可用于药物递送和相关生物医学应用的水解可降解水凝胶。 聚合物的实例是式XO的聚(醚碳酸酯) - [( - CH 2 CH 2 -O - ) - N - -CO 2 - - - - - (CH 2 CH 2)) - (CH 2 CH 2) -y其中X和Y独立地是H,烷基,烯基,芳基或反应性部分,X和Y中的至少一个是反应性部分。

    Hydrolytically degradable carbamate derivatives of poly (Ethylene Glycol)
    6.
    发明申请
    Hydrolytically degradable carbamate derivatives of poly (Ethylene Glycol) 有权
    聚(乙二醇)的水解可降解氨基甲酸酯衍生物

    公开(公告)号:US20060193823A1

    公开(公告)日:2006-08-31

    申请号:US11414456

    申请日:2006-04-28

    IPC分类号: A61K31/765

    摘要: Poly(ethylene glycol) carbamate derivatives useful as water-soluble pro-drugs are disclosed. These degradable poly(ethylene glycol) carbamate derivatives also have potential applications in controlled hydrolytic degradation of hydrogels. In such degradable hydrogels, drugs may be either trapped in the gel and released by diffusion as the gel degrades, or they may be covalently bound through hydrolyzable carbamate linkages. Hydrolysis of these carbamate linkages releases the amine drug at a controllable rate as the gel degrades.

    摘要翻译: 公开了可用作水溶性前体药物的聚(乙二醇)氨基甲酸酯衍生物。 这些可降解的聚(乙二醇)氨基甲酸酯衍生物在水凝胶的可控水解降解中也具有潜在的应用。 在这种可降解的水凝胶中,当凝胶降解时,药物可以被捕获在凝胶中并通过扩散释放,或者它们可以通过可水解的氨基甲酸酯键共价结合。 当凝胶降解时,这些氨基甲酸酯键的水解以可控的速率释放胺药物。

    Multi-arm polymer prodrugs
    10.
    发明申请
    Multi-arm polymer prodrugs 有权
    多臂聚合物前药

    公开(公告)号:US20050112088A1

    公开(公告)日:2005-05-26

    申请号:US10943799

    申请日:2004-09-17

    摘要: Provided herein are water-soluble prodrugs. The prodrugs of the invention comprise a water-soluble polymer having three or more arms, at least three of which are covalently attached to an active agent, e.g., a small molecule. The conjugates of the invention provide an optimal balance of polymer size and structure for achieving improved drug loading, since the conjugates of the invention possess three or more active agents releasably attached to a multi-armed water soluble polymer. The prodrugs of the invention are therapeutically effective, and exhibit improved properties in-vivo when compared to unmodified parent drug.

    摘要翻译: 本文提供水溶性前药。 本发明的前药包含具有三个或更多个臂的水溶性聚合物,其中至少三个共价连接到活性剂例如小分子上。 由于本发明的共轭物具有三种或更多种可释放地连接到多臂水溶性聚合物上的活性剂,本发明的共轭物提供聚合物尺寸和结构的最佳平衡以实现改善的药物负载。 与未修饰的母体药物相比,本发明的前药在治疗上是有效的,并且在体内表现出改善的性质。