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    • 9. 发明公开
    • PROCESS FOR PREPARING PHARMACOLOGICALLY ACCEPTABLE SALTS OF N-(1(S)-ETHOXYCARBONYL-3-PHENYLPROPYL)-L-ALANYL AMINO ACIDS
    • METHOD FOR PRODUCING药理学上可接受的N-(1(S) - 乙氧羰基-3-苯丙基)-L-丙氨酰基氨基酸盐
    • EP0967221A1
    • 1999-12-29
    • EP98932585.7
    • 1998-07-21
    • KANEKA CORPORATION
    • UEDA, YasuyoshiKINOSHITA, KoichiMOROSHIMA, TadashiYANAGIDA, YoshifumiFUSE, Yoshihide
    • C07K5/062C07K1/02C07K1/08
    • C07K5/0222C07K5/06026
    • A process for preparing pharmacologically acceptable salts of N-(1(S)-ethoxycarbonyl-3-phenylpropyl)-L-alanyl amino acids, comprising the steps of: condensing an amino acid with N-(1(S)-ethoxycarbonyl-3-phenylpropyl)-L-alanine N-carboxyanhydride under basic conditions; decarboxylating the condensate under neutral to acidic conditions to prepare an N-(1(S)-ethoxycarbonyl-3-phenylpropyl)-L-alanyl amino acid; and converting the product to a pharmacologically acceptable salt thereof, characterized in that a series of procedures up to the formation of a pharmacologically acceptable salt or up to the withdrawal of the pharmaceutically acceptable salt thereof are carried out in an aqueous liquid to inhibit the production of a by-product (3). According to this process, high-quality pharmacologically acceptable salts of N-(1(S)-ethoxycarbonyl-3-phenylpropyl)-L-alanyl amino acids can be prepared in high yields in a cost-effective manner on a commercial scale.
    • 在与N-氨基酸(1(S)乙氧基羰基-3-冷凝:一种用于制备药学上可接受的N-(1(S)乙氧基羰基-3-苯丙基)-L-丙氨酰氨基酸,其包括以下步骤的过程的盐 在碱性条件下苯丙基)-L-丙氨酸的N-羧基酸酐; 在中性脱羧缩合物在酸性条件以制备N-(1(S) - 乙氧羰基-3-苯丙基)-L-丙氨酰基氨基酸; 和将产物转化为药学上可接受的盐,其特征在于在做了一系列的程序到一药理学上可接受的盐的形成或高达药学上可接受的盐是在wässrige液体中进行的撤出,以抑制生产 的副产物(3)。 。根据该方法中,N-高质量药理学上可接受的盐(1(S)乙氧基羰基-3-苯丙基)-L-丙氨酰基氨基酸可以以高产率以具有成本效益的方式在商业规模上制备。