Method of preparing carboxylic acid functionalized polymers
    2.
    发明授权
    Method of preparing carboxylic acid functionalized polymers 有权
    制备羧酸官能化聚合物的方法

    公开(公告)号:US08067505B2

    公开(公告)日:2011-11-29

    申请号:US13023960

    申请日:2011-02-09

    IPC分类号: C08G65/332 C07C41/01

    摘要: Methods for preparing water soluble, non-peptidic polymers carrying carboxyl functional groups, particularly carboxylic acid functionalized poly(ethylene glycol) (PEG) polymers are disclosed, as are the products of these methods. In general, an ester reagent R(C═0)OR′, wherein R′ is a tertiary group and R comprises a functional group X, is reacted with a water soluble, non-peptidic polymer POLY-Y, where Y is a functional group which reacts with X to form a covalent bond, to form a tertiary ester of the polymer, which is then treated with a strong base in aqueous solution, to form a carboxylate salt of the polymer. Typically, this carboxylate salt is then treated with an inorganic acid in aqueous solution, to convert the carboxylate salt to a carboxylic acid, thereby forming a carboxylic acid functionalized polymer.

    摘要翻译: 公开了用于制备携带羧基官能团的水溶性非肽聚合物,特别是羧酸官能化聚(乙二醇)(PEG)聚合物的方法,以及这些方法的产物。 通常,其中R'是叔基且R包含官能团X的酯试剂R(C = O)OR'与水溶性非肽聚合物POLY-Y反应,其中Y是官能团 基团与X反应形成共价键,形成聚合物的叔酯,然后用强碱在水溶液中处理,形成聚合物的羧酸盐。 通常,该羧酸盐然后用水溶液中的无机酸处理,以将羧酸盐转化为羧酸,从而形成羧酸官能化聚合物。

    Sterically Hindered Poly(ethylene glycol) Alkanoic Acids and Derivatives Thereof
    3.
    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:US20110207896A1

    公开(公告)日:2011-08-25

    申请号:US13099965

    申请日:2011-05-03

    IPC分类号: C08G63/91

    摘要: The invention provides a sterically hindered polymers and conjugates formed therefrom that comprise a water-soluble and non-peptidic polymer backbone having at least one terminus covalently bonded to an alkanoic acid or alkanoic acid derivative prior to conjugation, 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和由其形成的共轭物,其包含水溶性和非肽性聚合物主链,其在共轭之前具有至少一个与链烷酸或链烷酸衍生物共价结合的末端,其中与羰基相邻的碳 的酸或酸衍生物基团具有与其相邻的烷基或芳基。 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)。

    Sterically hindered poly(ethylene glycol) alkanoic acids and derivatives thereof
    5.
    发明授权
    Sterically hindered poly(ethylene glycol) alkanoic acids and derivatives thereof 有权
    受阻的聚(乙二醇)链烷酸及其衍生物

    公开(公告)号:US06495659B2

    公开(公告)日:2002-12-17

    申请号:US09741933

    申请日:2000-12-20

    IPC分类号: C08G6534

    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)。

    Method of Preparing Carboxylic Acid Functionalized Polymers
    7.
    发明申请
    Method of Preparing Carboxylic Acid Functionalized Polymers 审中-公开
    羧酸官能化聚合物的制备方法

    公开(公告)号:US20120041155A1

    公开(公告)日:2012-02-16

    申请号:US13279134

    申请日:2011-10-21

    IPC分类号: C08L71/02

    摘要: Methods for preparing water soluble, non-peptidic polymers carrying carboxyl functional groups, particularly carboxylic acid functionalized poly(ethylene glycol) (PEG) polymers are disclosed, as are the products of these methods. In general, an ester reagent R(C═O)OR′, wherein R′ is a tertiary group and R comprises a functional group X, is reacted with a water soluble, non-peptidic polymer POLY-Y, where Y is a functional group which reacts with X to form a covalent bond, to form a tertiary ester of the polymer, which is then treated with a strong base in aqueous solution, to form a carboxylate salt of the polymer. Typically, this carboxylate salt is then treated with an inorganic acid in aqueous solution, to convert the carboxylate salt to a carboxylic acid, thereby forming a carboxylic acid functionalized polymer.

    摘要翻译: 公开了用于制备携带羧基官能团的水溶性非肽聚合物,特别是羧酸官能化聚(乙二醇)(PEG)聚合物的方法,以及这些方法的产物。 通常,其中R'是叔基,R包含官能团X的酯试剂R(C = O)OR'与水溶性非肽聚合物POLY-Y反应,其中Y是官能团 基团与X反应形成共价键,形成聚合物的叔酯,然后用强碱在水溶液中处理,形成聚合物的羧酸盐。 通常,该羧酸盐然后用水溶液中的无机酸处理,以将羧酸盐转化为羧酸,从而形成羧酸官能化聚合物。

    Sterically hindered poly (ethylene glycol) alkanoic acids and derivatives thereof
    9.
    发明授权
    Sterically hindered poly (ethylene glycol) alkanoic acids and derivatives thereof 有权
    受阻的聚(乙二醇)链烷酸及其衍生物

    公开(公告)号:US07205380B2

    公开(公告)日:2007-04-17

    申请号:US11264546

    申请日:2005-11-01

    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)。

    Sterically hindered poly (ethylene glycol) alkanoic acids and derivatives thereof
    10.
    发明申请
    Sterically hindered poly (ethylene glycol) alkanoic acids and derivatives thereof 有权
    受阻的聚(乙二醇)链烷酸及其衍生物

    公开(公告)号:US20060069237A1

    公开(公告)日:2006-03-30

    申请号:US11264546

    申请日:2005-11-01

    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)。