Processes for producing 7-isoindoline-quinolone carboxylic acid derivative and its intermediate, as well as salt of 7-isoindoline-quinolonecarboxylic acid derivative, its hydrate and composition comprising the same as active ingredient
    7.
    发明申请
    Processes for producing 7-isoindoline-quinolone carboxylic acid derivative and its intermediate, as well as salt of 7-isoindoline-quinolonecarboxylic acid derivative, its hydrate and composition comprising the same as active ingredient 审中-公开
    制备7-异二氢吲哚 - 喹诺酮羧酸衍生物及其中间体的方法,以及7-异二氢吲哚 - 喹诺酮羧酸衍生物的盐,其水合物和包含与活性成分相同的组合物

    公开(公告)号:US20050203301A1

    公开(公告)日:2005-09-15

    申请号:US10209078

    申请日:2002-08-01

    摘要: Process for producing a 7-bromoquinolone-carboxylic acid derivative of the following formula or its salt by reacting a 2,4-dibromo-3-hydroxybenzoic acid ester compound of the formula R7a-x to obtain a 3-alkoxy-2,4-dibromobenzoic acid ester, subjecting the 3-alkoxy-2,4-dibromobenzoic acid ester to elimination reaction of the carboxyl-protecting group to obtain a 3-alkoxy-2,4-dibromobenzoic acid, subjecting the 3-alkoxy-2,4-dibromobenzoic acid to ketoesterification reaction to obtain a 3-alkoxy-2,4-dibromobenyolacetic acid ester, reacting the 3-alkoxy-2,4-dibromobenzoylacetic acid ester with an orthoester or an acetal, then reacting the reaction product with a compound of the formula R2a—NH or its salt to obtain a 2-(3-alkoxy-2,4-dibromobenzoyl)-3-substituted aminoacrylic acid ester and subjecting the 2-(3-alkoxy-2,4-dibromobenzoyl)-3-substituted aminoacrylic acid ester to ring-closing reaction, and products thereof.

    摘要翻译: 制备下式的7-溴喹诺酮 - 羧酸衍生物或其盐的方法,其通过使式<β的在线式描述的2,4-二溴-3-羟基苯甲酸酯化合物=“在线式 “end =”lead“?> R 7a -x <?in-line-formula description =”In-line Formulas“end =”tail“?>以获得3-烷氧基-2, 4-二溴苯甲酸酯,使3-烷氧基-2,4-二溴苯甲酸酯与羧基保护基进行消去反应,得到3-烷氧基-2,4-二溴苯甲酸,将3-烷氧基-2,4-二溴苯甲酸 4-二溴苯甲酸进行酮酯化反应,得到3-烷氧基-2,4-二溴苯乙醇酸乙酯,使3-烷氧基-2,4-二溴苯甲酰基乙酸酯与原酸酯或缩醛反应,然后使反应产物与化合物 的式R 2a -NH或其盐,得到2-(3-烷氧基-2,4-二溴苯甲酰基)-3-取代的氨基丙烯酸酯,并使2-(3-烷氧基 - 3,4-二溴苯甲酰基)-3-取代基 叔氨基丙烯酸酯进行闭环反应,及其产物。