ethyl 2,4-dibromo-3-difluoromethoxybenzoyl acetate

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: ethyl 2,4-dibromo-3-difluoromethoxybenzoyl acetate
• 英文别名: Ethyl 3-[2,4-dibromo-3-(difluoromethoxy)phenyl]-3-oxopropanoate
• 化学式: C₁₂H₁₀Br₂F₂O₄
• 分子量: 416.014
• InChiKey: CNMVLPVSDHLZTF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.3
• 重原子数：
  20
• 可旋转键数：
  7
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  ethyl 2,4-dibromo-3-difluoromethoxybenzoyl acetate 在 乙酸酐 、 sodium hydride 作用下， 以 甲苯 为溶剂， 反应 13.0h， 生成 7-溴-1-环丙基-8-二氟甲氧基-1,4-二氢-4-氧代喹啉-3-羧酸乙酯
  参考文献：
  名称：

  一种1-环丙基-4-氧代-7-溴-8-二氟甲氧基- 1,4-二氢喹啉-3-羧酸乙酯的合成方法

  摘要：

  本发明公开了一种1‑环丙基‑4‑氧代‑7‑溴‑8‑二氟甲氧基‑1,4‑二氢喹啉‑3‑羧酸乙酯的合成方法，属于化学合成技术领域，其特征在于，包括以下步骤：（1）、2,4‑二溴‑3‑二氟甲氧基苯乙酮与碳酸二乙酯在强碱存在下反应，得到2,4‑二溴‑3‑二氟甲氧基苯甲酰乙酸乙酯；（2）、所得的2,4‑二溴‑3‑二氟甲氧基苯甲酰乙酸乙酯与原甲酸三乙酯在醋酐存在下反应，得到3‑乙氧基‑2‑（2,4‑二溴‑3‑二氟甲氧基苯甲酰）丙烯酸乙酯；（3）、所得的3‑乙氧基‑2‑（2,4‑二溴‑3‑二氟甲氧基苯甲酰）丙烯酸乙酯与环丙胺反应，得到3‑环丙氨基‑2‑（2,4‑二溴‑3‑二氟甲氧基苯甲酰）丙烯酸乙酯；（4）、所得的3‑环丙氨基‑2‑（2,4‑二溴‑3‑二氟甲氧基苯甲酰）丙烯酸乙酯在碱存在下关环，得到1‑环丙基‑4‑氧代‑7‑溴‑8‑二氟甲氧基‑1,4‑二氢喹啉‑3‑羧酸乙酯。该合成方法，具有反应步骤短、操作简单、污染少、合成收率高、产品质量好等优点，适合工业化应用。

  公开号：

  CN105777631B
• 作为产物：
  描述：

  1-(2,4-Dibromo-3-hydroxyphenyl)ethanone 在 sodium hydride 、 sodium hydroxide 作用下， 以 乙醇 、 水 、 mineral oil 为溶剂， 反应 16.0h， 生成 ethyl 2,4-dibromo-3-difluoromethoxybenzoyl acetate
  参考文献：
  名称：

  一种1-环丙基-4-氧代-7-溴-8-二氟甲氧基- 1,4-二氢喹啉-3-羧酸乙酯的制备方法

  摘要：

  本发明公开了一种1‑环丙基‑4‑氧代‑7‑溴‑8‑二氟甲氧基‑1,4‑二氢喹啉‑3‑羧酸乙酯的合成方法，属于化学合成技术领域，其特征在于，包括以下步骤：（1）、制备2,4‑二溴‑3‑二氟甲氧基苯甲酰乙酸乙酯；（2）、制备3‑乙氧基‑2‑（2,4‑二溴‑3‑二氟甲氧基苯甲酰）丙烯酸乙酯；（3）、制备3‑环丙氨基‑2‑（2,4‑二溴‑3‑二氟甲氧基苯甲酰）丙烯酸乙酯；（4）、制备1‑环丙基‑4‑氧代‑7‑溴‑8‑二氟甲氧基‑1,4‑二氢喹啉‑3‑羧酸乙酯。该合成方法，具有反应步骤短、操作简单、污染少、合成收率高、产品质量好等优点，适合工业化应用。

  公开号：

  CN105801482B

文献信息

• Processes for producing 7-isoindolinequinolonecarboxylic derivatives and intermediates therefor, salts of 7-isoindolinequinolonecarboxylic acids, hydrates thereof, and composition containing the same as active ingredient
  申请人：Toyama Chemical Co., Ltd.

  公开号：US06337399B1

  公开（公告）日：2002-01-08

  This invention relates to processes for producing a 7-isoindoline-quinolonecarboxylic acid derivative represented by the general formula [1] which is useful as an antibacterial agent, and an intermediate thereof: wherein R1 represents a hydrogen atom or a carboxyl-protecting group; R2 represents a substituted or unsubstituted alkyl, alkenyl, cycloalkyl, aryl or heterocyclic group; R3 represents at least one group selected from hydrogen atom, halogen atoms, substituted or unsubstituted alkyl, alkenyl, cycloalkyl, aryl, alkoxy or alkylthio groups, nitro group, cyano group, acyl groups, protected or unprotected hydroxyl groups and protected or unprotected or substituted or unsubstituted amino groups; R4 represents at least one group selected from hydrogen atom, halogen atoms, substituted or unsubstituted alkyl, alkenyl, cycloalkyl, aralkyl, aryl, alkoxy or alkylthio groups, protected or unprotected hydroxyl or imino groups, protected or unprotected or substituted or unsubstituted amino groups, alkylidene groups, oxo group and groups each forming a cycloalkane group together with the carbon atom to which R4 bonds; R5 represents a hydrogen atom, an amino-protecting group, a substituted or unsubstituted alkyl, cycloalkyl, alkylsulfonyl, arylsulfonyl, acyl or aryl group; R6 represents a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl, alkoxy or alkylthio group, a protected or unprotected hydroxyl or amino group or a nitro group; and A represents CH or C—R7 in which R7 represents a halogen atom, a substituted or unsubstituted alkyl, alkoxy or alkylthio group or a protected or unprotected hydroxyl group, and to a salt of a 7-isoindoline-quinolonecarboxylic acid represented by the general formula [1], a hydrate thereof and a composition comprising them as an active ingredient.

  这项发明涉及生产一种表示为通用式[1]的7-异吲哚喹喔酸衍生物的过程，该衍生物可用作抗菌剂，以及其中间体：其中R1代表氢原子或羧基保护基；R2代表取代或未取代的烷基、烯基、环烷基、芳基或杂环基；R3代表氢原子、卤原子、取代或未取代的烷基、烯基、环烷基、芳基、烷氧基或烷硫基、硝基、氰基、酰基、保护或未保护的羟基和保护或未保护或取代或未取代的氨基中至少选择一种基团；R4代表氢原子、卤原子、取代或未取代的烷基、烯基、环烷基、芳基、芳基烷基、烷氧基或烷硫基、保护或未保护的羟基或亚胺基、保护或未保护或取代或未取代的氨基、烷基亚甲基基、氧代基团和每个与R4键合的碳原子一起形成环烷基的基团中至少选择一种基团；R5代表氢原子、氨基保护基、取代或未取代的烷基、环烷基、烷基磺酰基、芳基磺酰基、酰基或芳基；R6代表氢原子、卤原子、取代或未取代的烷基、烷氧基或烷硫基、保护或未保护的羟基或氨基或硝基；A代表CH或C—R7，其中R7代表卤原子、取代或未取代的烷基、烷氧基或烷硫基或保护或未保护的羟基，以及一种7-异吲哚喹喔酸盐，其通用式为[1]，以及其水合物和包含它们作为活性成分的组合物。
• Processes for producing 7-isoindoline-quinolonecarboxylic 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
  申请人：TOYAMA CHEMICAL CO., LTD.

  公开号：US20020049328A1

  公开（公告）日：2002-04-25

  Processes for producing a 7-isoindoline-quinolonecarboxylic acid derivative represented by the general formula [1] which is useful as an antibacterial agent, and an intermediate thereof: 1 comprising reacting, in the presence of metallic palladium, an isoindoline-5-boronic acid, or of a 5-halogenoisoindoline, in the presence of a palladium catalyst, with a dialkoxyborane or an alkoxydiborane.

  制备一种具有抗菌活性的7-异吲哚喹啉羧酸衍生物（通式［1］），以及其中间体的方法：包括在金属钯的存在下，以钯催化剂为催化剂，将异吲哚-5-硼酸或5-卤代异吲哚与二烷氧基硼烷或烷氧基二硼烷反应。
• 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
  申请人：Ojima Katsuji

  公开号：US20050203301A1

  公开（公告）日：2005-09-15

  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 R 7a -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 R 2a —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.

  通过将公式如下的2,4-二溴-3-羟基苯甲酸酯化合物R7a-x与反应，得到一种3-烷氧基-2,4-二溴苯甲酸酯；将3-烷氧基-2,4-二溴苯甲酸酯进行羧基保护基的消除反应，得到3-烷氧基-2,4-二溴苯甲酸；将3-烷氧基-2,4-二溴苯甲酸进行酮酯化反应，得到3-烷氧基-2,4-二溴苯基乙酸酯；将3-烷氧基-2,4-二溴苯基乙酸酯与正酯或缩醛反应，然后将反应产物与公式为R2a—NH或其盐的化合物反应，得到一种2-(3-烷氧基-2,4-二溴苯甲酰)-3-取代氨基丙烯酸酯；将2-(3-烷氧基-2,4-二溴苯甲酰)-3-取代氨基丙烯酸酯进行环闭合反应，得到公式如下的7-溴喹啉羧酸衍生物或其盐，以及其制备方法。
• PROCESSES FOR PRODUCING 7-ISOINDOLINE-QUINOLONECARBOXYLIC 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
  申请人：Yamada Minoru

  公开号：US20070225506A1

  公开（公告）日：2007-09-27

  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 R 7a - 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 R 2 — 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.

  通过反应公式为R7a-x的2,4-二溴-3-羟基苯甲酸酯化合物以获得3-烷氧基-2,4-二溴苯甲酸酯，将3-烷氧基-2,4-二溴苯甲酸酯进行羧基保护基的消除反应以获得3-烷氧基-2,4-二溴苯甲酸，将3-烷氧基-2,4-二溴苯甲酸进行酮酯化反应以获得3-烷氧基-2,4-二溴苯乙酸酯，将3-烷氧基-2,4-二溴苯乙酸酯与orthoester或缩醛反应，然后将反应产物与公式为R2-NH或其盐的化合物反应以获得2-(3-烷氧基-2,4-二溴苯甲酰)-3-取代氨基丙烯酸酯，将2-(3-烷氧基-2,4-二溴苯甲酰)-3-取代氨基丙烯酸酯进行环闭合反应，从而获得以下公式或其盐的7-溴喹啉羧酸衍生物的制备方法和产物。
• PROCESSES FOR PRODUCING 7-ISOINDOLINEQUINOLONECARBOXYLIC DERIVATIVES AND INTERMEDIATES THEREFOR, SALTS OF 7-ISOINDOLINEQUINOLONECARBOXYLIC ACIDS, HYDRATES THEREOF, AND COMPOSITION CONTAINING THE SAME AS ACTIVE INGREDIENT
  申请人：TOYAMA CHEMICAL CO., LTD.

  公开号：EP1031569A1

  公开（公告）日：2000-08-30

  This invention relates to processes for producing a 7-isoindoline-quinolonecarboxylic acid derivative represented by the general formula [1] which is useful as an antibacterial agent, and an intermediate thereof: wherein R1 represents a hydrogen atom or a carboxyl-protecting group; R2 represents a substituted or unsubstituted alkyl, alkenyl, cycloalkyl, aryl or heterocyclic group; R3 represents at least one group selected from hydrogen atom, halogen atoms, substituted or unsubstituted alkyl, alkenyl, cycloalkyl, aryl, alkoxy or alkylthio groups, nitro group, cyano group, acyl groups, protected or unprotected hydroxyl groups and protected or unprotected or substituted or unsubstituted amino groups; R4 represents at least one group selected from hydrogen atom, halogen atoms, substituted or unsubstituted alkyl, alkenyl, cycloalkyl, aralkyl, aryl, alkoxy or alkylthio groups, protected or unprotected hydroxyl or imino groups, protected or unprotected or substituted or unsubstituted amino groups, alkylidene groups, oxo group and groups each forming a cycloalkane group together with the carbon atom to which R4 bonds; R5 represents a hydrogen atom, an amino-protecting group, a substituted or unsubstituted alkyl, cycloalkyl, alkylsulfonyl, arylsulfonyl, acyl or aryl group; R6 represents a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl, alkoxy or alkylthio group, a protected or unprotected hydroxyl or amino group or a nitro group; and A represents CH or C-R7 in which R7 represents a halogen atom, a substituted or unsubstituted alkyl, alkoxy or alkylthio group or a protected or unprotected hydroxyl group, and to a salt of a 7-isoindoline-quinolonecarboxylic acid represented by the general formula [1], a hydrate thereof and a composition comprising them as an active ingredient.

  本发明涉及生产由通式[1]表示的可用作抗菌剂的7-异吲哚啉-喹啉羧酸衍生物及其中间体的工艺： 其中 R1 代表氢原子或羧基保护基团；R2 代表取代或未取代的烷基、烯基、环烷基、芳基或杂环基团；R3 代表至少一个选自氢原子、卤素原子、取代或未取代的烷基、烯基、环烷基、芳基、烷氧基或硫代烷基、硝基、氰基、酰基、受保护或未受保护的羟基和受保护或未受保护或取代或未取代的氨基的基团；R4 代表至少一个选自氢原子、卤素原子、取代或未取代的烷基、烯基、环烷基、芳基、烷氧基或烷硫基、受保护或未受保护的羟基或亚氨基、受保护或未受保护的或取代或未取代的氨基、亚烷基、氧代基团和与 R4 键合的碳原子一起形成环烷基团的基团的基团；R5 代表氢原子、氨基保护基团、取代或未取代的烷基、环烷基、烷基磺酰基、芳基磺酰基、酰基或芳基； R6 代表氢原子、卤素原子、取代或未取代的烷基、烷氧基或硫代烷基、受保护或未受保护的羟基或氨基或硝基；和 A 代表 CH 或 C-R7，其中 R7 代表卤素原子、取代或未取代的烷基、烷氧基或烷硫基或受保护或未受保护的羟基，以及通式[1]代表的 7-异吲哚啉-喹啉羧酸的盐、其水合物和包含它们作为活性成分的组合物。