DEGRADABLE HETEROBIFUNCTIONAL POLY(ETHYLENE GLYCOL) ACRYLATES AND GELS AND CONJUGATES DERIVED THEREFROM
    71.
    发明申请
    DEGRADABLE HETEROBIFUNCTIONAL POLY(ETHYLENE GLYCOL) ACRYLATES AND GELS AND CONJUGATES DERIVED THEREFROM 有权
    可降解的异戊二烯(乙二醇)丙烯酸酯和凝胶以及其衍生物

    公开(公告)号:US20120195846A1

    公开(公告)日:2012-08-02

    申请号:US13446652

    申请日:2012-04-13

    IPC分类号: A61K31/785

    摘要: A heterobifunctional poly(ethylene glycol) is provided having a hydrolytically degradable linkage, a first terminus comprising an acrylate group, and a second terminus comprising a target such as a protein or pharmaceutical agent or a reactive moiety capable of coupling to a target. Hydrogels can be prepared. The hydrogels can be used as a carrier for a protein or a pharmaceutical agent that can be readily released in a controlled fashion.

    摘要翻译: 提供具有水解可降解键的异双功能聚(乙二醇),包含丙烯酸酯基的第一末端,和包含诸如蛋白质或药物的靶的第二末端或能够与靶偶合的反应性部分。 水凝胶可以制备。 水凝胶可用作可以以受控方式容易地释放的蛋白质或药剂的载体。

    Multi-Arm Block Copolymers as Drug Delivery Vehicles
    72.
    发明申请
    Multi-Arm Block Copolymers as Drug Delivery Vehicles 有权
    多臂嵌段共聚物作为药物递送载体

    公开(公告)号:US20120046422A1

    公开(公告)日:2012-02-23

    申请号:US13287852

    申请日:2011-11-02

    申请人: Xuan Zhao

    发明人: Xuan Zhao

    IPC分类号: C08G63/91

    摘要: The invention provides methods for making copolymers and multi-arm block copolymers useful as drug delivery vehicles. The multi-arm block copolymers comprise a central core molecule, such as a residue of a polyol, and at least three copolymer arms covalently attached to the central core molecule, each copolymer arm comprising an inner hydrophobic polymer segment covalently attached to the central core molecule and an outer hydrophilic polymer segment covalently attached to the hydrophobic polymer segment, wherein the central core molecule and the hydrophobic polymer segment define a hydrophobic core region. The solubility of hydrophobic biologically active agents can be improved by entrapment within the hydrophobic core region of the block copolymer. The invention further includes pharmaceutical compositions including such block copolymers, pharmaceutical compositions, and methods of using the block copolymers as drug delivery vehicles.

    摘要翻译: 本发明提供了制备用作药物递送载体的共聚物和多臂嵌段共聚物的方法。 多臂嵌段共聚物包括中心核心分子,例如多元醇的残基,以及共价连接到中心核心分子上的至少三个共聚物臂,每个共聚物臂包含共价连接到中心核心分子上的内部疏水性聚合物链段 和共价连接到疏水性聚合物链段上的外部亲水性聚合物链段,其中中心核心分子和疏水聚合物链段限定疏水核心区域。 疏水性生物活性剂的溶解度可以通过在嵌段共聚物的疏水核心区域内捕获来改善。 本发明还包括药物组合物,包括这种嵌段共聚物,药物组合物和使用嵌段共聚物作为药物递送载体的方法。

    Hydrolytically degradable carbamate derivatives of poly(ethylene glycol)
    74.
    发明授权
    Hydrolytically degradable carbamate derivatives of poly(ethylene glycol) 有权
    聚乙二醇的水解降解氨基甲酸酯衍生物

    公开(公告)号:US07988956B2

    公开(公告)日:2011-08-02

    申请号:US12559320

    申请日:2009-09-14

    IPC分类号: A61K31/70

    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。

    Branched Polymers
    75.
    发明申请
    Branched Polymers 有权
    支链聚合物

    公开(公告)号:US20110077362A1

    公开(公告)日:2011-03-31

    申请号:US12963170

    申请日:2010-12-08

    IPC分类号: C08G63/91 C08G2/30

    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 ether 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,其通过醚键连接到中心脂族烃核心分子上。 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,例如杂原子, - 亚烷基 - , - - 亚烷基-O-, - 亚烷基-O-亚烷基 - , - 芳基 - O-,-O-芳基 - ,( - - 亚烷基 - )m或( - 亚烷基-O-)m键,其中m为1-10。

    Branched polymers and their conjugates
    76.
    发明授权
    Branched polymers and their conjugates 有权
    支链聚合物及其共轭物

    公开(公告)号:US07872072B2

    公开(公告)日:2011-01-18

    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 - )m或( - 亚烷基-O-)m键,其中m为1-10。

    Sterically Hindered Poly(ethylene glycol) Alkanoic Acids and Derivatives Thereof
    79.
    发明申请
    Sterically Hindered Poly(ethylene glycol) Alkanoic Acids and Derivatives Thereof 有权
    受阻的聚(乙二醇)烷酸及其衍生物

    公开(公告)号:US20100121019A1

    公开(公告)日:2010-05-13

    申请号:US12689979

    申请日:2010-01-19

    IPC分类号: C08G65/34

    摘要: The invention provides a sterically hindered polymer that comprises a water-soluble and non-peptidic polymer backbone having at least one terminus covalently bonded to an alkanoic acid or alkanoic acid derivative, wherein the carbon adjacent to the carbonyl group of the acid or acid derivative group has an alkyl or aryl group pendent thereto. The steric effects of the alkyl or aryl group allow greater control of the hydrolytic stability of polymer derivatives. The polymer backbone may be poly(ethylene glycol).

    摘要翻译: 本发明提供一种空间位阻聚合物,其包含具有至少一个与链烷酸或链烷酸衍生物共价结合的末端的水溶性和非肽性聚合物主链,其中与酸或酸衍生物基团的羰基相邻的碳 具有其上的烷基或芳基。 烷基或芳基的空间效应允许更好地控制聚合物衍生物的水解稳定性。 聚合物主链可以是聚(乙二醇)。