3,5-二氟-2-吡啶羧酸 | 745784-04-7

• 物质功能分类: 医药中间体 - 杂环化合物 - 吡啶类化合物
• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 中文名称: 3,5-二氟-2-吡啶羧酸
• 中文别名: 3,5-二氟吡啶-2-羧酸；3,5-二氟吡啶-2-甲酸
• 英文名称: 3,5-difluoropyridine-2-carboxylic acid
• 英文别名: 3,5-difluoropicolinic acid；3,5-difluoro-2-pyridinecarboxylic acid
• CAS: 745784-04-7
• 化学式: C₆H₃F₂NO₂
• mdl: MFCD05664124
• 分子量: 159.092
• InChiKey: QKLXAJQKMIWFRC-UHFFFAOYSA-N

物化性质

• 熔点：
  202-204°C
• 沸点：
  240.6±35.0 °C(Predicted)
• 密度：
  1.535±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.9
• 重原子数：
  11
• 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：
  50.2
• 氢给体数：
  1
• 氢受体数：
  5

安全信息

• 危险等级：
  IRRITANT
• 危险品标志：
  Xi
• 安全说明：
  S26
• 危险类别码：
  R36/37/38
• WGK Germany：
  3
• 海关编码：
  2933399090
• 危险标志：
  GHS07
• 危险性描述：
  H315,H319,H335
• 危险性防范说明：
  P261,P305 + P351 + P338
• 储存条件：
  室温下应密封保存，并置于干燥处。

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 3,5-Difluoropicolinic acid
Synonyms:

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Section 2. Hazards identification
Harmful by inhalation, in contact with skin, and if swallowed.
H315: Causes skin irritation
H319: Causes serious eye irritation
H335: May cause respiratory irritation
P261: Avoid breathing dust/fume/gas/mist/vapours/spray
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present
and easy to do – continue rinsing

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Section 3. Composition/information on ingredients.
Ingredient name: 3,5-Difluoropicolinic acid
CAS number: 745784-04-7

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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.
Immediately wash skin with copious amounts of water for at least 15 minutes. Assure adequate
Eye contact:
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.
Storage: Store in closed vessels.

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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
No data
Boiling point:
Melting point: No data
Flash point: No data
Density: No data
Molecular formula: C6H3F2NO2
Molecular weight: 159.1

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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：

  3,5-二氟-2-吡啶羧酸 在 吡啶 、 4-二甲氨基吡啶 、 氯化亚砜 、 palladium 10% on activated carbon 、 氢气 、 sodium hydride 、 一水合肼 、 sodium chloride 、 lithium hexamethyldisilazane 作用下， 以 四氢呋喃 、 吡啶 、 水 、 二甲基亚砜 、 N,N-二甲基甲酰胺 、 mineral oil 为溶剂， 反应 10.0h， 生成 2-[6-fluoro-3-(2-fluorobenzyl)-1H-pyrazolo[4,3-b]pyridin-1-yl]pyrimidine-4,5,6-triamine
  参考文献：
  名称：

  Benzyl-substituted carbamates and use thereof

  摘要：

  本申请涉及新型苄基取代的碳酸酯，其制备方法，它们的使用，单独或与其他物质结合，用于治疗和/或预防疾病，并用于制备用于治疗和/或预防疾病的药物，特别是用于治疗和/或预防心血管疾病。

  公开号：

  US20150065533A1
• 作为产物：
  描述：

  2-氰基-3,5-二氟吡啶 在 硫酸 、 水 作用下， 反应 22.0h， 以85%的产率得到3,5-二氟-2-吡啶羧酸
  参考文献：
  名称：

  [EN] CASEIN KINASE 1 DELTA MODULATORS
  [FR] MODULATEURS DE LA CASÉINE KINASE 1 DELTA

  摘要：

  一种化合物公式(I)，包含它们的药物组合物，制备它们的方法，以及使用它们的方法，包括用于治疗与酪氨酸激酶1δ(CSNK1D)调节相关的疾病状态、障碍和病情的方法，例如与情绪/精神障碍、神经退行性疾病、癌症、成瘾和物质滥用障碍、疼痛和代谢性疾病相关的方法。其中，R1、R2、R3和R4在此定义。

  公开号：

  WO2022058920A1
• 作为试剂：
  描述：

  2-(2-chlorophenyl)pyridine 在 二茂铁 、 2,6-二叔丁基吡啶 、 3,5-二氟-2-吡啶羧酸 、 六氟异丙醇 、 potassium carbonate 作用下， 以 四氢呋喃 、 水 为溶剂， 反应 72.08h， 生成 2-氯-N-[4-氯-3-(2-吡啶基)苯基]-4-(甲磺酰基)苯甲酰胺
  参考文献：
  名称：

  通过非共价相互作用推进元选择性 C–H 胺化

  摘要：

  简单芳烃的区域选择性 C-H 胺化是非常理想的，但由于缺乏电子和空间偏好，访问普遍存在的芳烃的元位点已被证明具有挑战性。这项研究证明了成功地利用药物化合物中发现的各种独特的含氮官能团来指导芳烃的间-C-H胺化，克服了长期以来对冗余导向基团的要求。通过发现前所未有的有机引发剂和非共价相互作用的战略利用，在精确区域化学控制的官能团调节方面取得了显着进展。该方案已成功应用于药物分子的简洁合成和后期衍生化，否则这是很难实现的。

  DOI：

  10.1021/jacs.3c09904

文献信息

• Phenoxypiperidines and analogs thereof useful as histamine H3 antagonists
  申请人：Mutahi W. Mwangi

  公开号：US20070167435A1

  公开（公告）日：2007-07-19

  Disclosed are compounds of the formula or a pharmaceutically acceptable salt or solvate thereof, wherein: M is CH or N; U and W are each CH, or one of U and W is CH and the other is N; X is a bond, alkylene, —C(O)—, —C(N—OR 5 )—, —C(N—OR 5 )—CH(R 6 )—, —CH(R 6 )—C(N—OR 5 )—, —O—, —OCH 2 —, —CH 2 O— or —S(O) 0-2 —; Y is —O—, —(CH 2 ) 2 —, —C(═O)—, —C(═NOR 7 )— or —SO 0-2 —; Z is a bond, optionally substituted alkylene or alkylene interrupted by a heteroatom or heterocyclic group; R 1 is optionally substituted alkyl, cycloalkyl, aryl, arylalkyl, heteroaryl, heterocycloalkyl, or benzimidazolyl or a derivative thereof; R 2 is optionally substituted alkyl, alkenyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl or heterocycloalkyl; and the remaining variables are as defined in the specification; compositions and methods for treating an allergy-induced airway response, congestion, diabetes, obesity, an obesity-related disorder, metabolic syndrome and a cognition deficit disorder using said compounds, alone or in combination with other agents.

  揭示了以下化合物的结构式或其药学上可接受的盐或溶剂，其中：M为CH或N；U和W分别为CH，或者U和W中的一个为CH，另一个为N；X为键，烷基，—C(O)—，—C(N—OR5)—，—C(N—OR5)—CH(R6)—，—CH(R6)—C(N—OR5)—，—O—，—OCH2—，—CH2O—或—S(O)0-2—；Y为—O—，—(CH2)2—，—C(═O)—，—C(═NOR7)—或—SO0-2—；Z为键，可选择地取代的烷基或被杂原子或杂环基中断的烷基；R1为可选择地取代的烷基，环烷基，芳基，芳基烷基，杂芳基，杂环烷基或苯并咪唑基或其衍生物；R2为可选择地取代的烷基，烯基，芳基，芳基烷基，杂芳基，杂芳基烷基，环烷基或杂环烷基；其余变量如规范中所定义；使用这些化合物，单独或与其他药剂联合使用，治疗由过敏引起的气道反应、充血、糖尿病、肥胖症、与肥胖有关的疾病、代谢综合征和认知缺陷障碍的组合物和方法。
• [EN] SUBSTITUTED BENZAMIDE DERIVATIVES<br/>[FR] DÉRIVÉS DE BENZAMIDE SUBSTITUÉS
  申请人：HOFFMANN LA ROCHE

  公开号：WO2011076678A1

  公开（公告）日：2011-06-30

  The invention relates to compounds of formula I wherein R is hydrogen or lower alkyl; R1 is -(CH2)n-(O)o-heterocycloalkyl or -C(O)-heterocycloalkyl, wherein the heterocycloalkyl group is optionally substituted by lower alkyl, hydroxy, halogen or by -(CH2)p-aryl; n is 0, 1 or 2; o is 0 or 1; p is 0, 1 or 2; R2 is CF3, cycloalkyl, optionally substituted by lower alkoxy or halogen, or is indan-2-yl, or is heterocycloalkyl, optionally substituted by heteroaryl, or is aryl or heteroaryl, wherein the aromatic rings are optionally substituted by one or two substituents, selected from lower alkyl, halogen, heteroaryl, hydroxy, CF3, OCF3, OCH2CF3, OCH2-cycloalkyl, OCH2C(CH2OH)(CH2C1)(CH3), S-lower alkyl, lower alkoxy, CH2-lower alkoxy, lower alkinyl or cyano, or by-C(O)-phenyl, -O-phenyl, -O- CH2-phenyl, phenyl or -CH2-phenyl, and wherein the phenyl rings may optionally be substituted by halogen, -C(O)-lower alkyl, -C(O)OH or -C(O)O-lower alkyl, or the aromatic rings are optionally substituted by heterocycloalkyl, OCH2-oxetan-3-yl or O-tetrahydropyran-4-yl, optionally substituted by lower alkyl; X is a bond, -NR'-, -CH2NH-, -CHR''-, -(CHR'')q-O-, -O-(CHR'')q- or -(CH2)2-; Y is a bond or -CH2- R' is hydrogen or lower alkyl, R'' is hydrogen, lower alkyl, CF3, lower alkoxy, q is 0, 1, 2 or 3; or to a pharmaceutically suitable acid addition salt thereof. It has now been found that the compounds of formula I have a good affinity to the trace amine associated receptors (TAARs), especially for TAAR1. The compounds may be used for the treatment of depression, anxiety disorders, bipolar disorder, attention deficit hyperactivity disorder (ADHD), stress-related disorders, psychotic disorders such as schizophrenia, neurological diseases such as Parkinsons disease, neurodegenerative disorders such as Alzheimers disease, epilepsy, migraine, hypertension, substance abuse and metabolic disorders such as eating disorders, diabetes, diabetic complications, obesity, dyslipidemia, disorders of energy consumption and assimilation, disorders and malfunction of body temperature homeostasis, disorders of sleep and circadian rhythm, and cardiovascular disorders.

  该发明涉及以下式I的化合物，其中R是氢或较低的烷基；R1是-(CH2)n-(O)o-杂环烷基或-C(O)-杂环烷基，其中杂环烷基基团可选择地被较低的烷基，羟基，卤素或-(CH2)p-芳基取代；n为0、1或2；o为0或1；p为0、1或2；R2为CF3，环烷基，可选择地被较低的烷氧基或卤素取代，或为茚-2-基，或为杂环烷基，可选择地被杂芳基取代，或为芳基或杂芳基，其中芳香环可选择地被来自较低的烷基，卤素，杂芳基，羟基，CF3，OCF3，OCH2CF3，OCH2-环烷基，OCH2C(CH2OH)(CH2C1)(CH3)，S-较低的烷基，较低的烷氧基，CH2-较低的烷氧基，较低的炔基或氰基，或-C(O)-苯基，-O-苯基，-O-CH2-苯基，苯基或-CH2-苯基选择的一个或两个取代基取代，其中苯环可选择地被卤素，-C(O)-较低的烷基，-C(O)OH或-C(O)O-较低的烷基取代，或芳香环可选择地被杂环烷基，OCH2-氧杂环戊烷-3-基或O-四氢吡喃-4-基，可选择地被较低的烷基取代；X为键，-NR'-，-CH2NH-，-CHR''-，-(CHR'')q-O-，-O-(CHR'')q-或-(CH2)2-；Y为键或-CH2-；R'为氢或较低的烷基，R''为氢，较低的烷基，CF3，较低的烷氧基，q为0、1、2或3；或其药学上适宜的酸盐。现已发现，该式I的化合物对痕量胺相关受体（TAARs）具有良好的亲和力，特别是对于TAAR1。这些化合物可用于治疗抑郁症，焦虑症，躁郁症，注意力缺陷多动障碍（ADHD），与压力有关的疾病，如精神分裂症，帕金森病等神经疾病，阿尔茨海默病等神经退行性疾病，癫痫，偏头痛，高血压，物质滥用和代谢性疾病，如进食障碍，糖尿病，糖尿病并发症，肥胖症，血脂异常，能量消耗和吸收异常，体温稳态异常，睡眠和昼夜节律异常，以及心血管疾病。
• [EN] IRAK DEGRADERS AND USES THEREOF<br/>[FR] AGENTS DE DÉGRADATION D'IRAK ET LEURS UTILISATIONS
  申请人：KYMERA THERAPEUTICS INC

  公开号：WO2020264499A1

  公开（公告）日：2020-12-30

  The present invention provides compounds, compositions thereof, and methods of using the same. The compounds include an IRAK binding moiety capable of binding to IRAK4 and a degradation inducing moiety (DIM). The DIM could be DTM a ligase binding moiety (LBM) or lysine mimetic. The compounds could be useful as IRAK protein kinase inhibitors and applied to IRAK mediated disorders.

  本发明提供了化合物、其组合物以及使用这些化合物的方法。这些化合物包括能够结合到IRAK4的IRAK结合基团和诱导降解的基团（DIM）。DIM可以是DTM、一个连接酶结合基团（LBM）或赖氨酸类似物。这些化合物可以作为IRAK蛋白激酶抑制剂，并应用于IRAK介导的疾病。
• Enantioselective Reductive Divinylation of Unactivated Alkenes by Nickel-Catalyzed Cyclization Coupling Reaction
  作者：Jin-Bao Qiao、Ya-Qian Zhang、Qi-Wei Yao、Zhen-Zhen Zhao、Xuejing Peng、Xing-Zhong Shu

  DOI：10.1021/jacs.1c05670

  日期：2021.8.25

  benzene-fused compounds. Herein, we report an enantioselective cross-electrophile divinylation reaction of nonaromatic substrates, 2-bromo-1,6-dienes. The approach thus offers a route to new chiral cyclic architectures, which are key structural motifs found in various biologically active compounds. The reaction proceeds under mild conditions, and the use of chiral t-Bu-pmrox and 3,5-difluoro-pyrox ligands

  系链烯烃的催化不对称双碳官能化已成为生产手性环状分子的有前途的工具；然而，它通常依赖于芳基链烯烃来形成苯稠合化合物。在此，我们报告了非芳香族底物 2-溴-1,6-二烯的对映选择性交叉亲电二乙烯基化反应。因此，该方法为新的手性环状结构提供了一条途径，这是在各种生物活性化合物中发现的关键结构基序。该反应在温和条件下进行，使用手性t -Bu-pmrox 和 3,5-difluoro-pyrox 配体导致形成具有高化学选择性、区域选择性和对映选择性的二乙烯基化产物。该方法适用于将手性杂环和碳环并入复杂分子中。
• [EN] COMBINATION PHARMACEUTICAL AGENTS AS RSV INHIBITORS<br/>[FR] AGENTS PHARMACEUTIQUES EN COMBINAISON EN TANT QU'INHIBITEURS DE RSV
  申请人：ENANTA PHARM INC

  公开号：WO2019067864A1

  公开（公告）日：2019-04-04

  The present invention relates to pharmaceutical agents administered to a subject either in combination or in series for the treatment of a Respiratory Syncytial Virus (RSV) infection, wherein treatment comprises administering a compound effective to inhibit the function of the RSV and an additional compound or combinations of compounds having anti-RSV activity.

  本发明涉及用于治疗呼吸道合胞病毒（RSV）感染的药物剂，该药物剂可以单独或连续给予受试者，治疗包括给予一种有效抑制RSV功能的化合物以及具有抗RSV活性的另一种化合物或化合物组合。