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    • 2. 发明申请
    • Process for Preparing Rebamipide
    • 制备瑞巴派特的方法
    • US20070249835A1
    • 2007-10-25
    • US10587509
    • 2005-11-30
    • Shinji NishitaniNorio Fukuda
    • Shinji NishitaniNorio Fukuda
    • C07D215/02
    • C07D215/227
    • The invention provides an improved process for preparing rebamipide that is useful as a medicament, which makes it possible to prepare rebamipide with high purity and high yield. The invention is an improved process for preparing rebamipide of the formula (1), comprising subjecting a carbostyril amino acid compound of the formula (5) or a salt thereof containing a compound of the formula (11) as an impurity to a reduction treatment in the presence of hydrogen and a catalyst in a basic aqueous solution, thereby selectively reducing the impurity compound (11) to transform into the carbostyril amino acid compound (5); and then acylating the compound (5) in a basic aqueous solution to give rebamipide (1).
    • 本发明提供了一种用于制备可用作药物的瑞巴派特的改进方法,其使得可以以高纯度和高产率制备瑞巴派特。 本发明是制备式(1)的瑞巴派特的改进方法,其包括使式(5)的喹诺酮类氨基酸化合物或其含有式(11)化合物的盐作为杂质进行还原处理 在碱性水溶液中存在氢和催化剂,从而选择性地还原杂质化合物(11)以转化成喹诺酮类氨基酸化合物(5); 然后在碱性水溶液中酰化化合物(5),得到瑞巴派特(1)。
    • 3. 发明授权
    • Process for preparing rebamipide
    • 制备瑞巴派特的方法
    • US07718805B2
    • 2010-05-18
    • US10587509
    • 2005-11-30
    • Shinji NishitaniNorio Fukuda
    • Shinji NishitaniNorio Fukuda
    • C07D215/38
    • C07D215/227
    • The invention provides an improved process for preparing rebamipide that is useful as a medicament, which makes it possible to prepare rebamipide with high purity and high yield. The invention is an improved process for preparing rebamipide of the formula (1), comprising subjecting a carbostyril amino acid compound of the formula (5) or a salt thereof containing a compound of the formula (11) as an impurity to a reduction treatment in the presence of hydrogen and a catalyst in a basic aqueous solution, thereby selectively reducing the impurity compound (11) to transform into the carbostyril amino acid compound (5); and then acylating the compound (5) in a basic aqueous solution to give rebamipide (1).
    • 本发明提供了一种用于制备可用作药物的瑞巴派特的改进方法,其使得可以以高纯度和高产率制备瑞巴派特。 本发明是制备式(1)的瑞巴派特的改进方法,其包括使式(5)的喹诺酮类氨基酸化合物或其含有式(11)化合物的盐作为杂质进行还原处理 在碱性水溶液中存在氢和催化剂,从而选择性地还原杂质化合物(11)以转化成喹诺酮类氨基酸化合物(5); 然后在碱性水溶液中酰化化合物(5),得到瑞巴派特(1)。