Process for preparing 2-(4-chlorobenzoylamino)-3-[2 (1H)-quinolinon-4-yl] propionic acid
申请人:Kyung Dong Pharm., Co., Ltd.
公开号:US06680386B2
公开(公告)日:2004-01-20
The invention relates to a novel method for preparing 2-(4-chlorobenzoylamino)-3-[2(1H)-quinolinon-4-yl]propionic acid, also known as Rebamipide represented by the formula I and useful for treatment of peptic ulcer from alkyl 2-(4-chlorobenzoylamino)-2-alkoxycarbonyl-3-[2(1H)-quinolinon-4-yl]propionate represented by the formula II in the presence of a base solution for hydrolysis and decarboxylation to remove a carboxyl group.
本发明涉及一种新型制备2-(4-氯苯甲酰氨基)-3-[2(1H)-喹啉酮-4-基]丙酸,也称为Rebamipide,其化学式为I,用于治疗消化性溃疡。该方法包括在碱性溶液中,将烷基2-(4-氯苯甲酰氨基)-2-烷氧羰基-3-[2(1H)-喹啉酮-4-基]丙酸酯(化学式II)进行水解和脱羧,去除羧基。