2,6-二氟-4-硝基苯酚 | 658-07-1

• 物质功能分类: 有机原料 - 醇、酚、酚醇类化合物及衍生物
• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 中文名称: 2,6-二氟-4-硝基苯酚
• 中文别名: 4-硝基-2,6-二氟苯酚；2,6-二氟-4-硝基-苯酚
• 英文名称: 2,6-Difluoro-4-nitrophenol
• 英文别名: 4-nitro-2,6-difluorophenol
• CAS: 658-07-1
• 化学式: C₆H₃F₂NO₃
• 分子量: 175.092
• InChiKey: KVVXRISUSPIMLJ-UHFFFAOYSA-N

物化性质

• 熔点：
  99.7-100.7°C
• 沸点：
  254.5±40.0 °C(Predicted)
• 密度：
  1.619±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  12
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  66
• 氢给体数：
  1
• 氢受体数：
  5

安全信息

• 危险品标志：
  Xi
• 海关编码：
  2908999090
• 包装等级：
  III
• 危险类别：
  9
• 危险性防范说明：
  P261,P264,P270,P272,P273,P280,P301+P312+P330,P302+P352,P305+P351+P338+P310,P333+P313,P391,P501
• 危险品运输编号：
  3077
• 危险性描述：
  H302,H315,H317,H318,H410
• 储存条件：
  2-8°C

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 2,6-Difluoro-4-nitrophenol
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: 2,6-Difluoro-4-nitrophenol
CAS number: 658-07-1

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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: C6H3F2NO3
Molecular weight: 175.1

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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, nitrogen oxides, 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：

  2,6-二氟-4-硝基苯酚 在 palladium on activated charcoal 硫酸 、 氢气 、 碘 、 铜 、 碳酸氢钠 、 potassium carbonate 、 sodium nitrite 作用下， 以 乙酸乙酯 、 N,N-二甲基甲酰胺 、 丙酮 为溶剂， 反应 31.5h， 生成 2,4-二氟-3-甲氧基苯甲腈
  参考文献：
  名称：

  2,6-Difluorophenol as a Bioisostere of a Carboxylic Acid:  Bioisosteric Analogues of γ-Aminobutyric Acid

  摘要：

  3-(Aminomethyl)-2,6-difluorophenol (6) and 4-(aminomethyl)-2,6-difluorophenol (7) were synthesized in eight and four steps, respectively, starting from 2,6-difluorophenol, to test the potential of the 2,6-difluorophenol moiety to act as a lipophilic bioisostere of a carboxylic acid. Compounds 6 and 7 are potential bioisosteric analogues of gamma-aminobutyric acid (GABA). Substrate studies and inhibition studies were carried out with pig brain gamma-aminobutyric acid aminotransferase; 6 and 7 are very poor substrates, but both inhibit the enzyme, indicating that the 2,6-difluorophenol moiety appears to be able to substitute for a carboxylic acid to increase the lipophilicity of drug candidates.

  DOI：

  10.1021/jm980435l
• 作为产物：
  描述：

  2,6-二氟苯酚 在 aluminium trinitrate 作用下， 以 乙腈 为溶剂， 以55%的产率得到2,6-二氟-4-硝基苯酚
  参考文献：
  名称：

  碘（III）通过非布朗斯台德酸性NO 2 +生成的苯酚亲电硝化

  摘要：

  使用碘基苯作为基于碘（III）和硝酸铝作为硝基基团来源的有机催化剂，开发了用于苯酚亲电硝化的第一个催化程序。该原子经济方案发生在温和的，非布朗斯台德酸性和开放式烧瓶反应条件下，具有宽泛的官能团耐受性，包括多个杂环。（SMD：MeCN）Mo8-HX /（LANLo8 + f，6-311 + G *）水平的密度泛函理论（DFT）计算表明反应通过阳离子途径进行，该途径有效地产生了NO 2 +离子，从而是中性条件下的硝化物种。

  DOI：

  10.1021/acs.orglett.8b04141

文献信息

• Substituted pteridinones as p90 ribosomal S6 protein kinase (RSK) inhibitors: A structure-activity study
  作者：Kimberly A. Casalvieri、Christopher J. Matheson、Donald S. Backos、Philip Reigan

  DOI：10.1016/j.bmc.2019.115303

  日期：2020.3

  evaluate the structural features of BI-D1870 that are required for RSK2 inhibition. We have identified inhibitors of RSK2 activity, evaluated their target engagement in cells, and measured their effect on cell viability and cytotoxicity in the MOLM-13 acute myeloid leukemia (AML) cell line. The results of our studies support that RSK2 inhibition can be achieved in MOLM-13 cells without potent cytotoxicity

  p90核糖体S6激酶2（RSK2）的活性已成为癌症治疗的引人注目的靶标，因为它在多种细胞过程（如细胞转化和增殖）的调节中起着重要作用。几种泛RSK抑制剂已被BI-D1870鉴定，假类似物LJH685和LJI308是最具选择性，最有效和最常用的小分子抑制剂。我们设计和合成了一系列的翼龙和嘧啶，以评估BI-D1870抑制RSK2所需的结构特征。我们已经确定了RSK2活性的抑制剂，评估了它们在细胞中的靶标参与度，并测量了它们对MOLM-13急性骨髓性白血病（AML）细胞系中细胞活力和细胞毒性的影响。我们的研究结果支持在MOLM-13细胞中实现RSK2抑制而没有有效的细胞毒性。这项研究的结构活性数据将用作开发新型RSK2抑制剂的平台。
• Discovery of a Pyrimidinedione Derivative as a Potent and Orally Bioavailable Axl Inhibitor
  作者：Hefeng Zhang、Xia Peng、Yang Dai、Jingwei Shao、Yinchun Ji、Yiming Sun、Bo Liu、Xu Cheng、Jing Ai、Wenhu Duan

  DOI：10.1021/acs.jmedchem.0c02093

  日期：2021.4.8

  therapeutics. We used molecular modeling-assisted structural optimization starting with the low micromolar potency compound 9 to discover compound 13c, a highly potent and orally bioavailable Axl inhibitor. Selectivity profiling showed that 13c could inhibit the well-known oncogenic kinase Met with equal potency to its inhibition of Axl superfamily kinases. Compound 13c significantly inhibited cellular Axl and

  受体酪氨酸激酶 Axl 在促进癌症进展、转移和耐药性中发挥重要作用，并已被确定为抗癌治疗的有希望的靶点。我们从低微摩尔效力化合物9开始，使用分子建模辅助结构优化来发现化合物13c ，这是一种高效且可口服生物利用的 Axl 抑制剂。选择性分析表明， 13c可以抑制众所周知的致癌激酶 Met，其抑制 Axl 超家族激酶的效力相同。化合物13c显着抑制细胞Axl和Met信号传导，抑制Axl和Met驱动的细胞增殖，并抑制Gas6/Axl介导的癌细胞迁移或侵袭。此外， 13c在 Axl 驱动和 Met 驱动的肿瘤异种移植模型中表现出显着的抗肿瘤功效，在耐受良好的剂量下导致肿瘤停滞或消退。所有这些有利的数据使13c成为癌症治疗的有前途的候选药物。
• Transition State Analysis of the Reaction Catalyzed by the Phosphotriesterase from <i>Sphingobium</i> sp. TCM1
  作者：Andrew N. Bigley、Dao Feng Xiang、Tamari Narindoshvili、Charlie W. Burgert、Alvan C. Hengge、Frank M. Raushel

  DOI：10.1021/acs.biochem.9b00041

  日期：2019.3.5

  emerging pollutants. The phosphotriesterase from Sphingobium sp. TCM1 (Sb-PTE) is one of the few enzymes known to be able to hydrolyze organophosphorus flame retardants such as triphenyl phosphate and tris(2-chloroethyl) phosphate. The effectiveness of Sb-PTE for the hydrolysis of these organophosphates appears to arise from its ability to hydrolyze unactivated alkyl and phenolic esters from the central phosphorus

  有机磷阻燃剂是几乎所有耐久的塑料产品中使用的稳定有毒化合物，被认为是主要的新兴污染物。鞘氨醇单胞菌属的磷酸三酯酶。TCM1（Sb -PTE）是已知能够水解有机磷阻燃剂（如磷酸三苯酯和磷酸三（2-氯乙基）酯）的几种酶之一。Sb- PTE水解这些有机磷酸酯的有效性似乎是由于其水解来自中心磷核的未活化的烷基和酚酯的能力而产生的。Sb- PTE如何能够催化未活化取代基的水解是未知的。探讨Sb的催化水解机理确定了-PTE，反应的pH依赖性以及改变溶剂粘度的影响。通过测量初级和次级18氧同位素对底物水解的影响并确定改变p K a的影响来补充这些实验。离去基团对水解速率常数大小的影响。总体而言，结果表明单个基团必须被离子化以引起亲核攻击，并且单独的普通酸不涉及离去基团的质子化。布朗斯台德分析和重原子动力学同位素效应与早期缔合过渡态相符，随后的质子转移不受速率的限制。提出了底物与双核金属中心的新型结合方式和催化机理，以解释Sb-
• Di-substituted maleic amide linker for antibody drug conjugating and preparation method and use thereof
  申请人：Mabwell (shanghai) Bioscience Co., Ltd.

  公开号：US10987430B2

  公开（公告）日：2021-04-27

  Provided in the present invention are a di-substituted maleic amide linker conjugated to an antibody and a preparation method and use thereof. In particular, the present invention conjugates a strongly cytotoxic active substance to a biomacromolecule through a class of new linkers. The class of linkers can selectively act simultaneously with disulphide chains, so as to greatly improve the substance homogeneity of a conjugate. The conjugate prepared by the linker of the present invention has a high inhibitory activity on a cell strain expressing the corresponding antigen. Also provided is a method for preparing the above-mentioned conjugate and the use.

  本发明提供了一种二取代马来酰胺连接物与抗体结合的制备方法及其用途。具体而言，本发明通过一类新连接物将一种强烈细胞毒活性物质与生物大分子结合。这类连接物可以与二硫键同时选择性地作用，从而极大地提高结合物质的均一性。本发明连接物制备的结合物对表达相应抗原的细胞株具有高抑制活性。还提供了制备上述结合物的方法和用途。
• Synthesis and Structure-Activity Relationships of Oxamic Acid and Acetic Acid Derivatives Related to L-Thyronine
  作者：Naokata Yokoyama、Gordon N. Walker、Alan J. Main、James L. Stanton、Michael M. Morrissey、Charles Boehm、Allan Engle、Alan D. Neubert、Jong M. Wasvary

  DOI：10.1021/jm00004a015

  日期：1995.2

  Aryloxamic acids 7 and 23, (arylamino)acetic acids 29, arylpropionic acids 33, arylthioacetic acids 37, and (aryloxy)acetic acid 41 related to L-triiodothyronine (L-T3) were prepared and tested in vitro for binding to the rat liver nuclear L-T3 receptor and the rat membrane L-T3 receptor. The structure-activity relationships for these compounds are described, with 7f, 23a, 29c, 33a, 37b, and 41 showing

  制备了与L-三碘甲甲状腺素（L-T3）有关的芳基草酸7和23，（芳基氨基）乙酸29，芳基丙酸33，芳基硫代乙酸37和（芳氧基）乙酸41并在体外测试了与大鼠肝脏的结合核L-T3受体和大鼠膜L-T3受体。描述了这些化合物的构效关系，其中7f，23a，29c，33a，37b和41对核受体显示出出色的效价（IC50分别为0.19、0.16、1.1、0.11、3.5和0.10 nM）。并显着降低了对膜受体的结合亲和力（IC50> 5 microM）。这些化合物中的某些，尤其是草酰胺酸系列7和23，对甲基取代的衍生物（例如7f和23a）表现出空前的效价。化合物7f和23a在具有ED50'的大鼠中显示出良好的降脂作用