Methods for making saccharide-protein glycoconjugates
    1.
    发明授权
    Methods for making saccharide-protein glycoconjugates 有权
    制备糖蛋白糖缀合物的方法

    公开(公告)号:US09358284B2

    公开(公告)日:2016-06-07

    申请号:US14343351

    申请日:2012-09-14

    摘要: The invention provides a process for the reductive amination of a carbonyl group at the reducing terminus of a polysaccharide, wherein the reductive amination is carried out at a pH between 4 and 5. The invention also provides a process for preparing a conjugate of a polysaccharide and a carrier molecule, comprising the steps of: (a) coupling the polysaccharide to a linker, to form a polysaccharide-linker compound in which the free terminus of the linker is an ester group; and (b) reacting the ester group with a primary amine group in the carrier molecule, to form a polysaccharide-linker-carrier molecule conjugate in which the linker is coupled to the carrier molecule via an amide linkage. The invention also provides a process for reducing contamination of a polysaccharide-linker compound with unreacted linker, comprising a step of precipitating unreacted linker under aqueous conditions at a pH of less than 5.

    摘要翻译: 本发明提供了在多糖的还原末端还原胺化羰基的方法,其中还原胺化在pH4至5之间进行。本发明还提供了制备多糖和 载体分子,其包括以下步骤:(a)将多糖偶联至接头,以形成其中接头的游离末端为酯基的多糖 - 接头化合物; 和(b)在载体分子中使酯基与伯胺基反应,以形成多糖 - 连接体 - 载体分子缀合物,其中连接体经由酰胺键与载体分子偶联。 本发明还提供了一种减少多糖 - 接头化合物与未反应接头的污染的方法,包括在pH小于5的水性条件下沉淀未反应接头的步骤。

    METHODS FOR MAKING SACCHARIDE-PROTEIN GLYCOCONJUGATES
    2.
    发明申请
    METHODS FOR MAKING SACCHARIDE-PROTEIN GLYCOCONJUGATES 有权
    制备海草蛋白糖蛋白的方法

    公开(公告)号:US20140329998A1

    公开(公告)日:2014-11-06

    申请号:US14343351

    申请日:2012-09-14

    摘要: The invention provides a process for the reductive amination of a carbonyl group at the reducing terminus of a polysaccharide, wherein the reductive amination is carried out at a pH between 4 and 5. The invention also provides a process for preparing a conjugate of a polysaccharide and a carrier molecule, comprising the steps of: (a) coupling the polysaccharide to a linker, to form a polysaccharide-linker compound in which the free terminus of the linker is an ester group; and (b) reacting the ester group with a primary amine group in the carrier molecule, to form a polysaccharide-linker-carrier molecule conjugate in which the linker is coupled to the carrier molecule via an amide linkage. The invention also provides a process for reducing contamination of a polysaccharide-linker compound with unreacted linker, comprising a step of precipitating unreacted linker under aqueous conditions at a pH of less than 5.

    摘要翻译: 本发明提供了在多糖的还原末端还原胺化羰基的方法,其中还原胺化在pH4至5之间进行。本发明还提供了制备多糖和 载体分子,其包括以下步骤:(a)将多糖偶联至接头,以形成其中接头的游离末端为酯基的多糖 - 接头化合物; 和(b)在载体分子中使酯基与伯胺基反应,以形成多糖 - 连接体 - 载体分子缀合物,其中连接体经由酰胺键与载体分子偶联。 本发明还提供了一种减少多糖 - 接头化合物与未反应接头的污染的方法,包括在pH小于5的水性条件下沉淀未反应接头的步骤。