2-溴-5-甲硫基吡嗪 | 1049026-49-4

• 物质功能分类: 医药中间体 - 杂环化合物 - 吡嗪类化合物
• 分子结构分类: 有机化合物 - 有机硫化合物 - 硫醚类
• 中文名称: 2-溴-5-甲硫基吡嗪
• 中文别名: 2-溴-5-(甲基硫代)吡嗪
• 英文名称: 2-bromo-5-(methylsulfanyl)pyrazine
• 英文别名: 2-Bromo-5-(methylthio)pyrazine；2-bromo-5-methylsulfanylpyrazine
• CAS: 1049026-49-4
• 化学式: C₅H₅BrN₂S
• 分子量: 205.078
• InChiKey: ADYYWEIFRRHWRJ-UHFFFAOYSA-N

物化性质

• 沸点：
  271℃
• 密度：
  1.72
• 闪点：
  117℃

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  9
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  51.1
• 氢给体数：
  0
• 氢受体数：
  3

安全信息

• 海关编码：
  2933990090
• 危险性防范说明：
  P261,P280,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H332,H335
• 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-Bromo-5-(methylsulfanyl)pyrazine
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-Bromo-5-(methylsulfanyl)pyrazine
CAS number: 1049026-49-4

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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: C5H5BrN2S
Molecular weight: 205.1

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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 bromide, sulfur oxides.

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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-溴-5-甲硫基吡嗪 在 Oxone 作用下， 以 水 为溶剂， 反应 3.0h， 生成 2-溴-5-(甲基磺酰基)吡嗪
  参考文献：
  名称：

  [EN] INHIBITORS OF THE RENAL OUTER MEDULLARY POTASSIUM CHANNEL
  [FR] INHIBITEURS DU CANAL POTASSIQUE MÉDULLAIRE EXTERNE RÉNAL

  摘要：

  本发明提供了式I的化合物及其药学上可接受的盐，这些化合物是ROMK（Kir1.1）通道的抑制剂。这些化合物可用作利尿剂和/或钠利尿剂，并用于治疗和预防包括高血压、心力衰竭和慢性肾病在内的心血管疾病以及与过多盐分和水分潴留有关的疾病。

  公开号：

  WO2015017305A1
• 作为产物：
  描述：

  2,5-二溴吡嗪 、 sodium thiomethoxide 在 水 、 乙酸乙酯 、 Sodium sulfate-III 、 crude residue 、 ethyl acetate n-hexane 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 0.75h， 生成 2-溴-5-甲硫基吡嗪
  参考文献：
  名称：

  Inhibitors of the Renal Outer Medullary Potassium Channel

  摘要：

  本发明提供了I式化合物及其药物可接受的盐，这些化合物是ROMK(Kir1.1)通道的抑制剂。这些化合物可以用作利尿剂和/或钠利尿剂，并用于治疗和预防包括高血压、心力衰竭和慢性肾病在内的医疗条件以及与过度盐和水潴留有关的疾病。

  公开号：

  US20160207922A1

文献信息

• NOVEL COMPOUNDS AS GPR119 AGONISTS
  申请人：Mankind Pharma Ltd.

  公开号：US20170291910A1

  公开（公告）日：2017-10-12

  The present invention relates to novel compounds of formula (I) as GPR119 agonist, composition compositions containing such compounds and method of preparation thereof.

  本发明涉及式(I)的新化合物作为GPR119激动剂，包含此类化合物的组合物及其制备方法。
• Photoredox Catalysis Enables Access to <i>N</i>-Functionalized 2,1-Borazaronaphthalenes
  作者：Xie Wang、Geraint H. M. Davies、Adriel Koschitzky、Steven R. Wisniewski、Christopher B. Kelly、Gary A. Molander

  DOI：10.1021/acs.orglett.9b00884

  日期：2019.4.19

  The synthesis and utilization of a class of 2,1-borazaronaphthyltrifluoroborate reagents that provide a general solution to the challenge of N-functionalization of the 2,1-borazaronaphthalene core is described. By adorning the nitrogen of this core with a trifluoroboratomethyl unit, a suite of odd-electron processes can be executed, installing motifs that would otherwise be inaccessible using a two-electron

  描述了一类2,1-硼硼烷基萘基三氟硼酸酯试剂的合成和利用，该试剂为应对2,1-硼硼烷基萘核的N-官能化提出了一般解决方案。通过用三氟硼氢化甲基单元修饰该核的氮，可以执行一套奇数电子过程，安装使用双电子方法无法获得的基序。另外，该方法使得能够快速成环，从而提供了迄今未知的多环BN物种。
• Palladium-catalyzed difluoromethylthiolation of heteroaryl bromides, iodides, triflates and aryl iodides
  作者：Jiang Wu、Yafei Liu、Changhui Lu、Qilong Shen

  DOI：10.1039/c6sc00082g

  日期：——

  A palladium-catalyzed difluoromethylthiolation of heteroaryl halides and triflates under mild conditions was described. A vast range of heteroaryl halides such as pyridyl, quinolinyl, benzothiazolyl, thiophenyl, carbazolyl and pyazolyl halides could be difluoromethylthiolated efficiently, thus providing medicinal chemists with new tools for their search of new lead compounds for drug discovery. Likewise

  描述了在温和条件下钯催化的杂芳基卤化物和三氟甲磺酸二氟甲基硫醇化反应。各种杂芳基卤化物（例如吡啶基，喹啉基，苯并噻唑基，硫代苯基，咔唑基和吡唑基卤化物）可以有效地被二氟甲基硫醇化，从而为药物化学家提供了寻找新的先导化合物以发现药物的新工具。同样，在改良的反应条件下，高产率地将芳基碘化物二氟甲基硫醇化。
• Palladium-catalyzed difluoromethylation of heteroaryl chlorides, bromides and iodides
  作者：Changhui Lu、Yang Gu、Jiang Wu、Yucheng Gu、Qilong Shen

  DOI：10.1039/c7sc00691h

  日期：——

  A palladium-catalyzed difluoromethylation of a series of heteroaryl chlorides, bromides and iodides under mild conditions is described. A wide range of heteroaryl halides such as pyridyl, pyrimidyl, pyrazyl, funanyl, thienyl, pyazolyl, imidazolyl, thiazolyl, and oxazolyl halides were efficiently difluoromethylated, thus providing medicinal chemists an alternative choice for the preparation of drug

  描述了在温和条件下一系列杂芳基氯化物，溴化物和碘化物的钯催化的二氟甲基化。各种杂芳基卤化物（例如吡啶基，嘧啶基，吡唑基，呋喃基，噻吩基，吡唑基，咪唑基，噻唑基和恶唑基卤化物）被有效地二氟甲基化，因此为药物化学家提供了制备具有二氟甲基化杂芳基单元的候选药物的替代选择。
• Highly Chemoselective and Enantioselective Catalytic Oxidation of Heteroaromatic Sulfides via High-Valent Manganese(IV)–Oxo Cation Radical Oxidizing Intermediates
  作者：Wen Dai、Sensen Shang、Ying Lv、Guosong Li、Chunsen Li、Shuang Gao

  DOI：10.1021/acscatal.7b00968

  日期：2017.7.7

  manganese-catalyzed sulfoxidation. On the basis of the theoretical study, the coupled high-valent manganese(IV)–oxo cation radical species, which bears obvious similarities with that of reactive intermediates in the catalytic oxygenation reactions based on the cytochrome P450 and metalloporphyrin models, has been proposed as the reactive oxidant in the non-heme manganese catalyst system.

  锰复合物与卟啉样配体，其催化的杂芳硫化物，包括咪唑，苯并咪唑，吲哚，吡啶，嘧啶，吡嗪，的高度化学选择性和对映选择性氧化符号嗪，噻吩，噻唑，苯并噻唑，苯并恶唑和，与过氧化氢如描述的那样，在短的反应时间（0.5h）内以良好至优异的产率和对映选择性（高达90％产率和高达＞ 99％ee）提供相应的亚砜。该方法的实际实用性已在克规模的手性亚砜的合成中得到证明。用18 O标记水（H 2 18 O），过氧化氢（H 2 18 O 2）和氢过氧化枯基表明，通过羧酸协助的O-O键杂化作用，生成了高价的锰-氧代氧离子作为氧原子传递剂。还进行了密度泛函理论（DFT）计算，以进一步了解锰催化的硫氧化机理。在理论研究的基础上，提出了基于细胞色素P450和金属卟啉模型的高价锰（IV）-氧代阳离子自由基与催化氧化反应中的反应中间体具有明显相似性的化合物。非血红素锰催化剂体系中的活性氧化剂。