会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 9. 发明授权
    • Process for preparing pharmacologically acceptable salt of N-(1(S)-ethoxycarbonyl-3-phenylpropyl)-L-alanyl amino acids
    • 制备N-(1(S) - 乙氧基羰基-3-苯基丙基)-L-丙氨酰氨基酸的药理学可接受盐的方法
    • US06335453B1
    • 2002-01-01
    • US09269107
    • 1999-03-19
    • Yasuyoshi UedaKoichi KinoshitaTadashi MoroshimaYoshifumi YanagidaYoshihide Fuse
    • Yasuyoshi UedaKoichi KinoshitaTadashi MoroshimaYoshifumi YanagidaYoshihide Fuse
    • C07K5062
    • C07K5/0222C07K5/06026
    • There is provided a process for preparing a pharmacologically acceptable salt of N-(1(S)-ethoxycarbonyl-3-phenylpropyl)-L-alanyl-amino acid which comprises condensing an amino acid and N-(1(S)-ethoxycarbonyl-3-phenylpropyl)-L-alanine.N-carboxyanhydride under basic condition, carrying out decarboxylation under between neutral and acidic condition to obtain N-(1(S)-ethoxycarbonyl-3-phenylpropyl)-L-alanyl-amino acid, and forming a pharmacologically acceptable salt thereof, wherein the production of a by-product (3): is suppressed by carrying out in an aqueous liquid a series of operations till formation of the pharmacologically acceptable salt or till isolation of the pharmacologically acceptable salt. The present invention enables to prepare the pharmacologically acceptable salt of N-(1(S)-ethoxycarbonyl-3-phenylpropyl)-L-alanyl-amino acid having high quality, in a commercial scale with high yield and economical efficiency.
    • 提供了制备N-(1(S) - 乙氧基羰基-3-苯基丙基)-L-丙氨酰 - 氨基酸的药学上可接受的盐的方法,其包括将氨基酸和N-(1(S) - 乙氧基羰基 - 3-苯基丙基)-L-丙氨酸N-羧酸酐,在中性和酸性条件下进行脱羧,得到N-(1(S) - 乙氧基羰基-3-苯基丙基)-L-丙氨酰 - 氨基酸,和 形成其药理学上可接受的盐,其中通过在含水液体中进行一系列操作直到形成药理学上可接受的盐或直到药理学上可接受的盐的分离来抑制副产物(3)的产生。 本发明能够以高产率和经济效益以商业规模制备质量高的N-(1(S) - 乙氧基羰基-3-苯基丙基)-L-丙氨酰 - 氨基酸的药理学上可接受的盐。