A process for the preparation of poly-alfa-glutamic acid and derivatives thereof
    31.
    发明公开
    A process for the preparation of poly-alfa-glutamic acid and derivatives thereof 审中-公开
    Verfahren zur Herstellung von Alpha-poly(glutaminsäure)und seinen Derivaten

    公开(公告)号:EP2364992A1

    公开(公告)日:2011-09-14

    申请号:EP11162832.7

    申请日:2007-06-12

    CPC classification number: C07K1/02 C07K14/001 C08G69/10

    Abstract: The invention relates to an improved process for the preparation of poly-α-glutamic acids which comprises the polymerisation of tertiary γ-esters of α-glutamic acid N-carboxy anhydride with appropriate solvents and initiators, followed by acid hydrolysis of the resulting poly-α-glutamic acid-γ-ester. The process is particularly advantageous in that it allows to carefully control the molecular weight of the resulting poly-α-glutamic acid. The invention also relates to poly-α-glutamic acids capped at the amino terminus with carboxylic acids or amino acids and to a process for the preparation thereof.

    Abstract translation: 本发明涉及一种制备聚-γ-谷氨酸的改进方法,其包括用合适的溶剂和引发剂将± - 谷氨酸N-羧酸酐的叔-3-酯聚合,然后酸化所得聚 - ± - 谷氨酸-3-酯。 该方法特别有利的是,其允许仔细控制得到的聚-γ-谷氨酸的分子量。 本发明还涉及在氨基末端用羧酸或氨基酸封端的聚-γ-谷氨酸及其制备方法。

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