3,5-二氟-4-羟基苯甲酸 | 74799-63-6

• 物质功能分类: 有机原料 - 羧酸类化合物及衍生物
• 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: 3,5-二氟-4-羟基苯甲酸
• 英文名称: 3,5-difluoro-4-hydroxybenzoic acid
• CAS: 74799-63-6
• 化学式: C₇H₄F₂O₃
• mdl: MFCD12406861
• 分子量: 174.104
• InChiKey: ONYKRDQINKHFQS-UHFFFAOYSA-N

物化性质

• 熔点：
  187-190°C
• 沸点：
  280.7±40.0 °C(Predicted)
• 密度：
  1.600±0.06 g/cm3(Predicted)
• 溶解度：
  可溶于DMSO（少许）、甲醇（少许）

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 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：
  57.5
• 氢给体数：
  2
• 氢受体数：
  5

安全信息

• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H335

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 3,5-Difluoro-4-hydroxybenzoic 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: 3,5-Difluoro-4-hydroxybenzoic acid
CAS number: 74799-63-6

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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, refrigerated.
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: C7H4F2O3
Molecular weight: 174.1

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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.

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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

反应信息

• 作为反应物：
  描述：

  3,5-二氟-4-羟基苯甲酸 在 4-二甲氨基吡啶 、 三溴化硼 、 potassium carbonate 、 一水合肼 、 三乙胺 、 对甲苯磺酰氯 作用下， 以 甲醇 、 二氯甲烷 、 二甲基亚砜 、 N,N-二甲基甲酰胺 为溶剂， 反应 22.5h， 生成 3-(5-(3,5-difluoro-4-hydroxyphenyl)-1,3,4-oxadiazol-2-yl)benzene-1-sulfonyl fluoride
  参考文献：
  名称：

  芳香族磺酰氟共价动力学稳定运甲状腺素蛋白以防止淀粉样蛋白形成，同时提供荧光缀合物

  摘要：

  选择性地结合给定蛋白质，然后进行快速化学选择性反应以形成共价缀合物的分子在药物开发中具有实用性。本文设想了一个 1,3,4-恶二唑库，其 2 位被芳基磺酰氟取代，5 位被取代的芳基取代，已知该芳基对转甲状腺素蛋白 (TTR) 的内部甲状腺素结合亚位点具有高亲和力基于结构的设计原理并通过化学合成。当结合在甲状腺素结合位点时，大多数芳基磺酰氟会与 pKa 扰动的 K15 残基发生快速且化学选择性的反应，从而在动力学上稳定 TTR，从而防止已知会导致多发性神经病的淀粉样原纤维形成。结合 t50 范围为 1 至 4 分钟，比甲状腺素结合位点外的水解反应快约 1400 倍。X 射线晶体学证实了预期的结合方向，并揭示了磺酰氟活化导致磺酰胺与 TTR 的连接。一些芳基磺酰氟在血浆中与 TTR 有效形成缀合物。合成的 11 种 TTR 共价动力学稳定剂在缀合时表现出荧光，因此由于发色团的环境敏感荧光而可能具有成像应用。

  DOI：

  10.1021/ja311729d
• 作为产物：
  描述：

  对羟基苯甲酸 以13%的产率得到
  参考文献：
  名称：

  MISAKI, SUSUMU, J. FLUOR. CHEM., 1982, 21, N 2, 191-199

  摘要：

  DOI：

文献信息

• [EN] GALACTOSIDE INHIBITOR OF GALECTINS<br/>[FR] INHIBITEUR GALACTOSIDE DE GALECTINES
  申请人：GALECTO BIOTECH AB

  公开号：WO2020078808A1

  公开（公告）日：2020-04-23

  The present invention relates to a compound of the general formula I or II. The compound of formula I or II is suitable for use in a method for treating a disorder relating to the binding of a galectin, such as galectin-3 to a ligand in a mammal, such as a human. Furthermore, the present invention concerns a method for treatment of a disorder relating to the binding of a galectin, such as galectin-3 to a ligand in a mammal, such as a human.

  本发明涉及一种具有一般式I或II的化合物。式I或II的化合物适用于用于治疗与在哺乳动物（如人类）中的一个半乳糖结合蛋白（例如半乳糖结合蛋白-3）与配体结合有关的疾病的方法。此外，本发明涉及一种治疗与在哺乳动物（如人类）中的一个半乳糖结合蛋白（例如半乳糖结合蛋白-3）与配体结合有关的疾病的方法。
• Elemental fluorine Part 12. Fluorination of 1,4-disubstituted aromatic compounds
  作者：Richard D. Chambers、John Hutchinson、Matthew E. Sparrowhawk、Graham Sandford、John S. Moilliet、Julie Thomson

  DOI：10.1016/s0022-1139(99)00238-9

  日期：2000.3

  Direct fluorination of a series of 1,4-disubstituted benzene derivatives in acid reaction media at convenient temperature leads, in many cases, to selectively fluorinated aromatic products in preparatively useful conversions and yields.

  在酸性反应介质中，在方便的温度下，将一系列的1,4-二取代的苯衍生物进行直接氟化，在许多情况下，会以制备上有用的转化率和收率选择性地氟化芳族产物。
• Preparation of aromatic and heteroaromatic carboxylic acids by catalytic ozonolysis
  申请人：——

  公开号：US20030216577A1

  公开（公告）日：2003-11-20

  A process for catalytically oxidizing alkylaromatic compounds of the formula (I) Ar—CH 2 —R where Ar is an optionally substituted, aromatic or heteroaromatic 5-membered or 6-membered ring or a ring system having up to 20 carbon atoms where Ar may optionally be fused to a C 1 -C 6 -alkyl group in which up to 2 carbon atoms may be replaced by a heteroatom, and R is hydrogen, phenyl, benzyl or heteroaryl, where the phenyl, benzyl or heteroaryl radicals may also be joined to Ar by a bridge, or R together with Ar forms an optionally substituted ring system which may contain one or more optionally substituted heteroatoms, to the corresponding aromatic or heteroaromatic carboxylic acids in a solvent with ozone in the presence of a transition metal catalyst and optionally in the presence of an acid at a temperature between −70° C. and 110° C. to the corresponding carboxylic acid.

  将式(I)中的烷基芳香化合物催化氧化为相应的芳香或杂芳羧酸的过程是在溶剂中，在存在过渡金属催化剂和可选地存在酸的情况下，利用臭氧将式(I)中的化合物氧化为相应的芳香或杂芳羧酸的过程。其中，式(I)中Ar为可选地取代的芳香或杂芳5-或6-成员环或具有多达20个碳原子的环系统，其中Ar可选地与一个C1-C6-烷基基团融合，其中最多有2个碳原子可被杂原子取代；R为氢、苯基、苄基或杂芳基，其中苯基、苄基或杂芳基基团也可以通过桥连接到Ar，或R与Ar一起形成一个可选地取代的环系统，该环系统可以含有一个或多个可选地取代的杂原子，反应温度在-70°C至110°C之间。
• 塩、酸発生剤、レジスト組成物及びレジストパターンの製造方法
  申请人：住友化学株式会社

  公开号：JP2020059708A

  公开（公告）日：2020-04-16

  【課題】ラインエッジラフネスが良好なレジストパターンを製造できる塩、該塩を含有する酸発生剤、及び該酸発生剤を含有するレジスト組成物を提供することを目的とする。【解決手段】式（Ｉ）で表される塩。［式中、Ｑ1及びＱ2は、それぞれフッ素原子又はペルフルオロアルキル基を表す。Ｒ1及びＲ2は、それぞれ独立に、水素原子、フッ素原子又はペルフルオロアルキル基を表す。ｚは０〜６の整数を表す。Ｘ1は、＊−ＣＯ−Ｏ−、＊−Ｏ−ＣＯ−等を表す。Ｌ1及びＬ2は、それぞれ単結合又は飽和炭化水素基を表す。Ｒ３は、置換基を有してもよい環状炭化水素基を表す。ｍ３は１〜４の整数を表す。Ｒ４は、ハロゲン原子又はアルキル基を表す。ｍ４は０〜３の整数を表す。Ｚ＋は、有機カチオンを表す。］【選択図】なし

  这是一个专利申请的描述，目的是提供一种可以制造出具有良好线边粗糙度的感光胶图案的盐、含有该盐的酸发生剂以及含有该酸发生剂的感光胶组合物。解决方案是一种由式（I）表示的盐。【式中，Q1和Q2分别表示氟原子或全氟烷基。R1和R2分别独立地表示氢原子、氟原子或全氟烷基。z表示0到6的整数。X1表示＊−CO−O−，＊−O−CO−等。L1和L2分别表示单键或饱和碳氢基。R3表示可能带有取代基的环状碳氢基。m3表示1到4的整数。R4表示卤原子或烷基。m4表示0到3的整数。Z＋表示有机阳离子。】
• [EN] COMPOUNDS AND METHODS FOR THE TARGETED DEGRADATION OF ANDROGEN RECEPTOR PROTEIN<br/>[FR] COMPOSÉS ET PROCÉDÉS POUR LA DÉGRADATION CIBLÉE DE PROTÉINE DU RÉCEPTEUR DES ANDROGÈNES
  申请人：ARVINAS OPERATIONS INC

  公开号：WO2022087125A1

  公开（公告）日：2022-04-28

  Bifunctional compounds, which find utility as modulators of androgen receptor (AR), are described herein. In particular, the bifunctional compounds of the present disclosure contain on one end a moiety that binds to the cereblon E3 ubiquitin ligase and on the other end a moiety which binds AR, such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of target protein. The bifunctional compounds of the present disclosure exhibit a broad range of pharmacological activities associated with degradation/inhibition of target protein. Diseases or disorders that result from aberrant regulation of the target protein are treated or prevented with compounds and compositions of the present disclosure.

  本文描述了具有雄激素受体（AR）调节剂作用的双功能化合物。特别是，本公开的双功能化合物在一端含有结合到cereblon E3泛素连接酶的基团，在另一端含有结合到AR的基团，使得目标蛋白质靠近泛素连接酶以降解（和抑制）目标蛋白质。本公开的双功能化合物表现出与目标蛋白质降解/抑制相关的广泛的药理活性。使用本公开的化合物和组合物治疗或预防由于目标蛋白质异常调节而导致的疾病或障碍。