Method for the preparation of tizanidine hydrochloride
    7.
    发明授权
    Method for the preparation of tizanidine hydrochloride 有权
    盐酸替扎西汀制备方法

    公开(公告)号:US08487113B2

    公开(公告)日:2013-07-16

    申请号:US13131269

    申请日:2009-12-18

    IPC分类号: C07D285/06

    CPC分类号: C07D417/12

    摘要: The invention deals with a preparation method of salts of 5-chloro-4-(2-imidazolin-2-yl-amino)-2,1,3-benzothiadiazole (tizanidine) of formula I, especially tizanidine hydrochloride, comprising preparation of a salt of tizanidine of formula I and a carboxylic acid as an intermediate, from which, after acidification with hydrogen chloride, tizanidine hydrochloride is obtained in a high yield and purity.

    摘要翻译: 本发明涉及式I的5-氯-4-(2-咪唑啉-2-基 - 氨基)-2,1,3-苯并噻二唑(替扎尼定​​)的盐的制备方法,特别是盐酸替扎尼定,包括制备 式I的替扎尼定的盐和作为中间体的羧酸,在用氯化氢酸化后,以高产率和纯度获得盐酸替扎尼定。

    METHOD FOR THE PREPARATION OF TIZANIDINE HYDROCHLORIDE
    8.
    发明申请
    METHOD FOR THE PREPARATION OF TIZANIDINE HYDROCHLORIDE 有权
    制备喹唑啉盐酸盐的方法

    公开(公告)号:US20110263863A1

    公开(公告)日:2011-10-27

    申请号:US13131269

    申请日:2009-12-18

    IPC分类号: C07D285/06

    CPC分类号: C07D417/12

    摘要: The invention deals with a preparation method of salts of 5-chloro-4-(2-imidazolin-2-yl-amino)-2,1,3-benzothiadiazole (tizanidine) of formula I, especially tizanidine hydrochloride, comprising preparation of a salt of tizanidine of formula I and a carboxylic acid as an intermediate, from which, after acidification with hydrogen chloride, tizanidine hydrochloride is obtained in a high yield and purity.

    摘要翻译: 本发明涉及式I的5-氯-4-(2-咪唑啉-2-基 - 氨基)-2,1,3-苯并噻二唑(替扎尼定​​)的盐的制备方法,特别是盐酸替扎尼定,包括制备 式I的替扎尼定的盐和作为中间体的羧酸,在用氯化氢酸化后,以高产率和纯度获得盐酸替扎尼定。