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2. 发明公开

KR1020030050412A 레바미피드의 제조방법 失效
标题翻译：制备复方制剂的方法
公开(公告)号：KR1020030050412A
公开(公告)日：2003-06-25
申请号：KR1020010080842
申请日：2001-12-18
申请人： 동화약품주식회사
发明人： 정용호 , 오윤석 , 임재경 , 권오진 , 강소연 , 홍현수
IPC分类号： C07D215/227
摘要： PURPOSE: A process for preparing rebamipide is provided, thereby simplifying the preparing process of rebamipide and improving the preparation yield of rebamipide. CONSTITUTION: A process for preparing rebamipide of the formula(1) comprises the steps of: reacting 4-(bromomethyl)-1,2-dihydro-2-quinolinone of formula(2) with diethyl 2-£(4-chlorobenzoyl)amino|malonate of formula(3) to prepare a compound of formula(4); and reacting the compound of formula(4) under basic conditions, wherein R is alkyl having the carbon number of 1 to 6, wherein the diethyl 2-£(4-chlorobenzoyl)amino|malonate of formula(3) is prepared by reacting diethyl 2-aminomalonate hydrochloride with 4-chlorobenzoyl derivative of formula(6); and R is alkyl having the carbon number of 1 to 6 and X is OH or halogen atom.
摘要翻译：目的：提供制备瑞巴派特的方法，从而简化了雷巴米特的制备过程，提高了瑞巴派特的制备成品率。构成：制备式（1）的瑞巴派特的方法包括以下步骤：使式（2）的4-（溴甲基）-1,2-二氢-2-喹啉酮与2-（4-氯苯甲酰基）氨基（3）的丙二酸酯以制备式（4）的化合物; 并在碱性条件下使式（4）的化合物反应，其中R是碳数为1至6的烷基，其中式（3）的2-（2-氯苯甲酰基）氨基丙二酸二乙酯是通过使二 2-氨基马来酸盐酸盐与式（6）的4-氯苯甲酰基衍生物反应; R为碳原子数1〜6的烷基，X为OH或卤素原子。

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