4-溴-2,5-二氟苯甲酸 | 28314-82-1

• 物质功能分类: 有机原料 - 羧酸类化合物及衍生物 - 羧酸的卤化、磺化、硝化或亚硝化衍生物
• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 4-溴-2,5-二氟苯甲酸
• 中文别名: 2,5-二氟-4-溴苯甲酸
• 英文名称: 4-bromo-2,5-difluorobenzoic acid
• CAS: 28314-82-1
• 化学式: C₇H₃BrF₂O₂
• 分子量: 237.0
• InChiKey: YWZSTHLOAZTDFJ-UHFFFAOYSA-N

物化性质

• 沸点：
  285.0±40.0 °C(Predicted)
• 密度：
  1.872±0.06 g/cm3(Predicted)
• pKa：
  2.70±0.10 (Predicted,Most Acidic Temp: 25 °C)

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  4

安全信息

• 海关编码：
  2916399090
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H335
• 储存条件：
  室温且干燥环境下使用。

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 4-Bromo-2,5-difluorobenzoic acid
Synonyms:

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Section 2. Hazards identification
Harmful by inhalation, in contact with skin, and if swallowed.

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Section 3. Composition/information on ingredients.
Ingredient name: 4-Bromo-2,5-difluorobenzoic acid
CAS number: 28314-82-1

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Section 4. First aid measures
Skin contact: Immediately wash skin with copious amounts of water for at least 15 minutes while removing
contaminated clothing and shoes. If irritation persists, seek medical attention.
Eye contact: Immediately wash skin with copious amounts of water for at least 15 minutes. Assure adequate
flushing of the eyes by separating the eyelids with fingers. If irritation persists, seek medical
attention.
Inhalation: Remove to fresh air. In severe cases or if symptoms persist, seek medical attention.
Ingestion: Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention.

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Section 5. Fire fighting measures
In the event of a fire involving this material, alone or in combination with other materials, use dry
powder or carbon dioxide extinguishers. Protective clothing and self-contained breathing apparatus
should be worn.

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Section 6. Accidental release measures
Personal precautions: Wear suitable personal protective equipment which performs satisfactorily and meets local/state/national
standards.
Respiratory precaution: Wear approved mask/respirator
Hand precaution: Wear suitable gloves/gauntlets
Skin protection: Wear suitable protective clothing
Eye protection: Wear suitable eye protection
Methods for cleaning up: Mix with sand or similar inert absorbent material, sweep up and keep in a tightly closed container
for disposal. See section 12.
Environmental precautions: Do not allow material to enter drains or water courses.

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Section 7. Handling and storage
Handling: This product should be handled only by, or under the close supervision of, those properly qualified
in the handling and use of potentially hazardous chemicals, who should take into account the fire,
health and chemical hazard data given on this sheet.
Store in closed vessels.
Storage:

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Section 8. Exposure Controls / Personal protection
Engineering Controls: Use only in a chemical fume hood.
Personal protective equipment: Wear laboratory clothing, chemical-resistant gloves and safety goggles.
General hydiene measures: Wash thoroughly after handling. Wash contaminated clothing before reuse.

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Section 9. Physical and chemical properties
Appearance: Not specified
Boiling point: No data
No data
Melting point:
Flash point: No data
Density: No data
Molecular formula: C7H3BrF2O2
Molecular weight: 237.0

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Section 10. Stability and reactivity
Conditions to avoid: Heat, flames and sparks.
Materials to avoid: Oxidizing agents.
Possible hazardous combustion products: Carbon monoxide, hydrogen fluoride, hydrogen bromide.

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Section 11. Toxicological information
No data.

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Section 12. Ecological information
No data.

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Section 13. Disposal consideration
Arrange disposal as special waste, by licensed disposal company, in consultation with local waste
disposal authority, in accordance with national and regional regulations.

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Section 14. Transportation information
Non-harzardous for air and ground transportation.

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Section 15. Regulatory information
No chemicals in this material are subject to the reporting requirements of SARA Title III, Section
302, or have known CAS numbers that exceed the threshold reporting levels established by SARA
Title III, Section 313.

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SECTION 16 - ADDITIONAL INFORMATION
N/A

制备方法与用途

简介

4-溴-2,5-二氟苯甲酸是一种重要的有机中间体，可通过1,4-二溴-2,5-二氟苯与干冰反应制备。具体步骤如下：将1,4-二溴-2,5-二氟苯（640 mg，2.35 mmol）溶解在无水乙醚（10 mL）中，并置于干冰-丙酮浴中冷却。随后，逐滴加入2.5M正丁基锂/己烷溶液（1.04 mL，2.59 mmol），并在-78℃搅拌30分钟。接着，用一片干冰处理该混合物5分钟后移除冷却浴，并在室温下再搅拌30分钟。然后使用乙酸乙酯和水进行洗涤，分出有机相并用水饱和的NaHCO3溶液洗涤两次。最后，用1M HCl水溶液酸化合并后的有机相，用二氯甲烷萃取两次后干燥并浓缩，最终得到白色固体4-溴-2,5-二氟苯甲酸。

反应信息

• 作为反应物：
  描述：

  4-溴-2,5-二氟苯甲酸 在 四(三苯基膦)钯 、 水 、 caesium carbonate 、 N,N'-羰基二咪唑 、 sodium hydroxide 作用下， 以 四氢呋喃 、 1,4-二氧六环 、 乙醇 、 二氯甲烷 、 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 36.67h， 生成 5-[2,5-difluoro-4-(2-methoxy-4,6-dimethylpyridin-3-yl)phenyl]-1-(tetrahydro-2H-pyran-4-yl)-1H-pyrazole-4-carboxamide
  参考文献：
  名称：

  PYRAZOLOQUINOLINE DERIVATIVES

  摘要：

  由以下化学式（I）表示的化合物和/或药理学上可接受的盐具有PDE9抑制作用，因此预期将提高脑内cGMP浓度。PDE9抑制作用和cGMP的增加导致学习和记忆行为的改善，化合物（I）具有作为治疗代理人用于阿尔茨海默病认知功能障碍的适用性。其中R1是氢原子；R2是芳香环基团等；R3是氢原子等；R4是氢原子；R5是氧杂环丙基团等；R6是氢原子。

  公开号：

  US20130143907A1
• 作为产物：
  描述：

  1,4-二溴-2,5-二氟苯 在 正丁基锂 、 三氟甲磺酸 、 正丁基氯化镁 作用下， 以 四氢呋喃 、 正己烷 、 二氯甲烷 、 甲苯 为溶剂， 反应 8.0h， 生成 4-溴-2,5-二氟苯甲酸
  参考文献：
  名称：

  [EN] IMIDAZOPYRIDINE COMPOUNDS AND USES THEREOF
  [FR] COMPOSÉS IMIDAZOPYRIDINE ET LEURS UTILISATIONS

  摘要：

  这项发明通常涉及取代咪唑吡啶化合物，特别是取代的4-(咪唑[1,2-a]吡啶-2-基)苯甲酰胺化合物及其盐。这项发明还涉及包含这种化合物的药物组合物和试剂盒，以及这种化合物的用途（包括治疗方法和药物制剂等），制备这种化合物的方法，以及用于这些方法的中间体。

  公开号：

  WO2014117274A1

文献信息

• Synthesis and Antibacterial Activity of Some Novel 1-Substituted 1,4-Dihydro-4-oxo-7-pyridinyl-3-quinolinecarboxylic Acids. Potent Antistaphylococcal Agents
  作者：Michael Reuman、Sol J. Daum、Baldev Singh、Mark P. Wentland、Robert B. Perni、Patrick Pennock、Philip M. Carabateas、Monte D. Gruett、Manohar T. Saindane、Peter H. Dorff、Susan A. Coughlin、David M. Sedlock、James B. Rake、George Y. Lesher

  DOI：10.1021/jm00014a005

  日期：1995.7

  important for good Gram positive activity. For 1-cyclopropyl 7-(2,6-dimethyl-4-pyridinyl) derivatives, the 6-fluoro 4a, 8-fluoro 10d, 6,8-difluoro 10b, and 5,6,8-trifluoro 8, all provided equal antibacterial activity against Staphylococcus aureus ATCC 29213. There is also a correlation between the substitution on the 7-(4-pyridinyl) group and the Gram positive activity, particularly for S. aureus, clearly

  3-和4-（三烷基锡烷基）吡啶与7-溴或7-氯1取代的1,4-二氢-4-氧代-3-喹啉羧酸酯的钯催化偶联提供了相应的1取代的1， 4-二氢-4-氧代-7-吡啶基-3-喹啉羧酸。研究了这些衍生物的抗菌活性，发现革兰氏阳性活性的最佳1位和7位取代基分别是环丙基和4-（2,6-二甲基吡啶基）。我们发现对于所研究的氟取代的衍生物，氟在喹诺酮核上的位置或氟原子的数目对于良好的革兰氏阳性活性似乎并不重要。对于1-环丙基7-（2,6-二甲基-4-吡啶基）衍生物，6-氟4a，8-氟10d，6,8-二氟10b和5,6,8-三氟8 所有这些都对金黄色葡萄球菌ATCC 29213具有相同的抗菌活性。7-（4-吡啶基）基团的取代与革兰氏阳性活性之间也存在相关性，特别是对金黄色葡萄球菌，这清楚地表明2,6-二甲基吡啶基组是最佳的。在这项研究中，针对金黄色葡萄球菌ATCC 29213的最有效药物的MIC50值为0.0
• Rational design, synthesis and testing of novel tricyclic topoisomerase inhibitors for the treatment of bacterial infections part 1
  作者：R. Kirk、A. Ratcliffe、G. Noonan、M. Uosis-Martin、D. Lyth、O. Bardell-Cox、J. Massam、P. Schofield、S. Hindley、D. R. Jones、J. Maclean、A. Smith、V. Savage、S. Mohmed、C. Charrier、A-M. Salisbury、E. Moyo、R. Metzger、N. Chalam-Judge、J. Cheung、N. R. Stokes、S. Best、M. Craighead、R. Armer、A. Huxley

  DOI：10.1039/d0md00174k

  日期：——

  and topoisomerase IV inhibitors that demonstrate potent activity against a range of Gram-positive and selected Gram-negative organisms, including clinically-relevant and drug-resistant strains. In part 1, we present a detailed structure activity relationship (SAR) analysis that led to the discovery of our previously disclosed compound, REDX05931, which has a minimum inhibitory concentration (MIC) of

  针对细菌感染的药物有效性令人震惊的下降，迫切需要开发新的抗菌剂来绕过细菌耐药机制。我们在此报告了一系列 DNA 促旋酶和拓扑异构酶 IV 抑制剂，它们对一系列革兰氏阳性和选定的革兰氏阴性生物体（包括临床相关和耐药菌株）表现出有效的活性。在第 1 部分中，我们提出了详细的构效关系 (SAR) 分析，导致我们发现了我们之前公开的化合物 REDX05931，该化合物对耐氟喹诺酮类金黄色葡萄球菌的最小抑制浓度 (MIC) 为 0.06 μg mL -1。虽然在体外 hERG 和 CYP 抑制阻止了进一步的发展，它验证了一种合理的设计方法来解决这一紧迫的未满足的医疗需求，并为进一步优化提供了一个支架，在第 2 部分中介绍。
• ALDH2 ACTIVATOR
  申请人：Eisai R&D Management Co., Ltd.

  公开号：US20190231720A1

  公开（公告）日：2019-08-01

  The present invention provides a compound represented by formula ( 1 ): or pharmaceutically acceptable salt thereof, wherein X and Y are the same or different from each other and represent a hydrogen atom, a halogen atom, a C 1-6 alkyl group, or a C 1-6 alkoxy group, wherein the C 1-6 alkoxy group may be substituted with a C 1-6 alkoxy group, and Z and W are the same or different from each other and represent a hydrogen atom, a halogen atom, or a C 1-6 alkyl group.

  本发明提供了一种由下式（1）表示的化合物或其药学上可接受的盐，其中X和Y彼此相同或不同，表示氢原子、卤原子、C1-6烷基或C1-6甲氧基，其中C1-6甲氧基可以被C1-6烷氧基取代，Z和W彼此相同或不同，表示氢原子、卤原子或C1-6烷基。
• INDOLE CARBOXAMIDE COMPOUNDS
  申请人：BRISTOL-MYERS SQUIBB COMPANY

  公开号：US20160115126A1

  公开（公告）日：2016-04-28

  Disclosed are compounds of Formula (I): or a salt thereof, wherein: X is CR 4 or N; R 1 , R 2 , R 3 , R 4 , and A are defined herein. Also disclosed are methods of using such compounds as inhibitors of Bruton's tyrosine kinase (Btk), and pharmaceutical compositions comprising such compounds. These compounds are useful in treating, preventing, or slowing the progression of diseases or disorders in a variety of therapeutic areas, such as autoimmune diseases and vascular disease.

  揭示了Formula (I)的化合物： 或其盐，其中：X为CR 4 或N；R 1 ，R 2 ，R 3 ，R 4 和A在此处定义。还揭示了使用这些化合物作为Bruton's酪氨酸激酶（Btk）抑制剂的方法，以及包含这些化合物的药物组合物。这些化合物在治疗、预防或减缓各种治疗领域的疾病或疾病的进展方面非常有用，如自身免疫疾病和血管疾病。
• [EN] ISOTHIAZOLOQUINOLONES AND RELATED COMPOUNDS AS ANTI-INFECTIVE AGENTS<br/>[FR] ANTI-INFECTIEUX A BASE D'ISOTHIAZOLOQUINOLONES ET DE SELS CORRESPONDANTS
  申请人：ACHILLION PHARMACEUTICALS INC

  公开号：WO2005019228A1

  公开（公告）日：2005-03-03

  The invention provides compounds and salts of Formula (I) and Formula (II): which possess antimicrobial activity. The invention also provides novel synthetic intermediates useful in making compounds of Formula (I) and Formula (II). The variables A1, R2, R3, R5, R6, R7, A8 and R9 are defined herein. Certain compounds of Formula (I) and Formula (II) disclosed herein are potent and selective inhibitors of bacterial DNA synthesis and bacterial replication. The invention also provides antimicrobial compositions, including pharmaceutical compositions, containing one or more compounds of Formula (I) or Formula (II) and one or more carriers, excipients, or diluents. Such compositions may contain a compound of Formula (I) or Formula (II) as the only active agent or may contain a combination of a compound of Formula (I) or Formula (II) and one or more other active agents. The invention also provides methods for treating microbial infections in animals.

  本发明提供了具有抗菌活性的公式(I)和公式(II)的化合物及盐类：本发明还提供了用于制造公式(I)和公式(II)化合物的新的合成中间体。变量A1、R2、R3、R5、R6、R7、A8和R9在此文中定义。本文披露的某些公式(I)和公式(II)化合物是细菌DNA合成和细菌复制的强效和选择性抑制剂。本发明还提供了含有一种或多种公式(I)或公式(II)化合物以及一种或多种载体、辅料或稀释剂的抗菌组合物，包括药物组合物。这样的组合物可以只含有公式(I)或公式(II)的化合物作为唯一的活性成分，也可以含有公式(I)或公式(II)的化合物与一种或多种其他活性成分的组合。本发明还提供了用于治疗动物微生物感染的方法。