2,4,5-三溴-1-甲基-1H-咪唑 | 1003-91-4

• 物质功能分类: 有机原料 - 杂环化合物
• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 中文名称: 2,4,5-三溴-1-甲基-1H-咪唑
• 中文别名: 2,4,5-三溴-1-甲基咪唑
• 英文名称: N-methyl-2,4,5-tribromoimidazole
• 英文别名: 2,4,5-tribromo-1-methyl-1H-imidazole；2,4,5-tribromo-1-methylimidazole；1-Methyl-2,4,5-tribromoimidazole；2,4,5-Tribrom-1-methylimidazol
• CAS: 1003-91-4
• 化学式: C₄H₃Br₃N₂
• 分子量: 318.793
• InChiKey: KAMDVXMJRMNDCQ-UHFFFAOYSA-N

物化性质

• 熔点：
  84-86°C
• 沸点：
  364.9±45.0 °C(Predicted)
• 密度：
  2?+-.0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  9
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  17.8
• 氢给体数：
  0
• 氢受体数：
  1

安全信息

• 危险类别码：
  R36/37/38
• 海关编码：
  2933290090
• 安全说明：
  S26,S36/37/39
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H335
• 储存条件：
  存于室温下，密封保存，并确保环境干燥。

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 2,4,5-Tribromo-1-methyl-1H-imidazole
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: 2,4,5-Tribromo-1-methyl-1H-imidazole
CAS number: 1003-91-4

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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.
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: C4H3Br3N2
Molecular weight: 318.8

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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.

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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：

  2,4,5-三溴-1-甲基-1H-咪唑 在 sodium amalgam 、 乙醇 作用下， 生成 N-甲基咪唑
  参考文献：
  名称：

  Wyss, Chemische Berichte, 1877, vol. 10, p. 1370

  摘要：

  DOI：
• 作为产物：
  描述：

  N-甲基咪唑 在 溴 、 potassium hydrogencarbonate 、 N,N-二甲基甲酰胺 作用下， 以 acetate buffer 为溶剂， 反应 3.0h， 以51%的产率得到2,4,5-三溴-1-甲基-1H-咪唑
  参考文献：
  名称：

  便捷的克级合成多溴代咪唑结构单元

  摘要：

  使用化学计量的Br 2 -DMF配合物已经实现了多种克取代的咪唑的多克级多溴化反应。与使用大量乙酸-乙酸钠缓冲液的其他方法相比，已获得了良好的收率。

  DOI：

  10.1016/j.tetlet.2006.01.066

文献信息

• Site-Selective Thiolation of (Multi)halogenated Heteroarenes
  作者：Frederik Sandfort、Tobias Knecht、Tobias Pinkert、Constantin G. Daniliuc、Frank Glorius

  DOI：10.1021/jacs.0c01630

  日期：2020.4.15

  complementing established methodologies such as nucleophilic aromatic substitution or palladium-catalyzed coupling reactions. Experimental and computational studies suggest a radical chain mechanism with the key step being a homolytic aromatic substitution of the heteroaryl halide by an electrophilic thiyl radical, highlighting an underdeveloped reactivity mode of these radicals.

  报告了各种药物相关的富电子杂芳烃与硫醇的位点选择性硫醇化的一般和简单策略。这种温和而可靠的光催化协议能够在（多）卤化底物的最富电子位置进行 CS 耦合，补充已建立的方法，如亲核芳香取代或钯催化的耦合反应。实验和计算研究表明了一种自由基链机制，其关键步骤是杂芳基卤化物被亲电硫基自由基的均裂芳族取代，突出了这些自由基的不发达反应模式。
• Exploration of the molecular architecture of the orthosteric binding site in the α4β2 nicotinic acetylcholine receptor with analogs of 3-(dimethylamino)butyl dimethylcarbamate (DMABC) and 1-(pyridin-3-yl)-1,4-diazepane
  作者：Tinna B. Bach、Anders A. Jensen、Jette G. Petersen、Troels E. Sørensen、Serena Della Volpe、Jun Liu、Antoni R. Blaazer、Jacqueline E. van Muijlwijk-Koezen、Thomas Balle、Bente Frølund

  DOI：10.1016/j.ejmech.2015.07.024

  日期：2015.9

  structures of acetylcholine binding proteins (AChBPs) have revealed two different possible extensions to the classical ligand binding pocket known to accommodate various nicotinic agonists. One of the pockets is limited in size while the other is of considerable dimensions and protrudes along the interfacial cleft between subunits. To probe these putative extensions in functional nicotinic acetylcholine receptors

  乙酰胆碱结合蛋白（AChBPs）的X射线晶体结构揭示了对经典配体结合袋的两种不同可能的扩展，已知该配体结合袋可容纳多种烟碱激动剂。其中一个口袋的大小受到限制，而另一个口袋的大小却相当大，并沿着亚基之间的界面裂口突出。为了探测功能性烟碱乙酰胆碱受体（nAChRs）中的这些假定的扩展，制备了3-（二甲基氨基）丁基二甲基氨基甲酸酯（DMABC）和1-（吡啶-3-基）-1,4-二氮杂ze的细长类似物，并在神经元处进行了药理学表征异聚nAChRs。尽管新的类似物相对于母体化合物显示出较低的结合亲和力，但所选化合物的功能表征显示它们保留了部分α4β2nAChR激动剂活性。结构-活性关系数据并未表明取代基大小的上限，如果将配体结合在较小的口袋中，这是可以预期的。数据更好地与结合模式一致，在该结合模式中，取代基沿着受体的界面裂隙突出。通过对接至α4-β2nAChR界面的同源性模型以及通过表面等离振子共振生
• [EN] HEMOGLOBIN MODIFIER COMPOUNDS AND USES THEREOF<br/>[FR] COMPOSÉS MODIFICATEURS D'HÉMOGLOBINE ET LEURS UTILISATIONS
  申请人：FRONTHERA U S PHARMACEUTICALS LLC

  公开号：WO2017218960A1

  公开（公告）日：2017-12-21

  Described herein are compounds, including pharmaceutically acceptable salts thereof, methods of making such compounds, pharmaceutical compositions comprising such compounds, and methods of using such compounds to treat, prevent or diagnose blood-based diseases, disorders or conditions.

  本文描述了化合物，包括其药用可接受的盐，制备这些化合物的方法，包含这些化合物的药物组合物，以及使用这些化合物治疗、预防或诊断基于血液的疾病、紊乱或状况的方法。
• Convenient Synthesis of Methyl 1-Methyl-2,4-dibromo-5-imidazolecarboxylate
  作者：John F. O'Connell、Jonathan Parquette、William E. Yelle、Wilhelm Wang、Henry Rapoport

  DOI：10.1055/s-1988-27702

  日期：——

  Three syntheses of methyl 1-methyl-2,4-dibromo-5-imidazolecarboxylate (8) are presented. One proceeds from sarcosine via ring closure, bromination, and desulfurization. The second uses N-methylimidazole, polybromination, and selective halogen-metal interchange. The third and most efficient and preparatively useful route begins with diaminomaleonitrile (13). Ring closure with triethyl orthoformate followed by methylation and hydrolysis affords 1-methyl-4,5-imidazoledicarboxylic acid (16). Regioselective decarboxylation followed by esterification yields methyl 1-methyl-5-imidazolecarboxylate (18). Subsequent dibromination gives the completely substituted imidazole 8. The primary purification in this sequence is fractional sublimation of 18 after the esterification step. An overall yield of 26% is achieved from diaminomaleonitrile (13) to methyl 1-methyl-2,4-dibromo-5-imidazolecarboxylate (8), which is a key intermediate for the synthesis of tricyclic imidazo cooked food mutagens.

  介绍了三种合成甲基1-甲基-2,4-二溴-5-咪唑甲酸酯(8)的方法。第一种方法是通过肌氨酸的环化、溴化和脱硫步骤进行。第二种方法使用N-甲基咪唑、多溴化和选择性卤素-金属互换。第三种方法最为高效且实用，始于二氨基富马腈(13)。通过三乙基原甲酸酯进行环化，随后甲基化和水解得到1-甲基-4,5-咪唑二羧酸(16)。区域选择性脱羧后再酯化得到甲基1-甲基-5-咪唑甲酸酯(18)。后续的双溴化得到完全取代的咪唑8。在此序列中主要的纯化步骤是酯化步骤后的分馏升华。从二氨基富马腈(13)到甲基1-甲基-2,4-二溴-5-咪唑甲酸酯(8)的总收率为26%，后者是合成三环咪唑熟食诱变剂的关键中间体。
• [EN] PURINONES AS UBIQUITIN-SPECIFIC PROTEASE 1 INHIBITORS<br/>[FR] PURINONES UTILISÉS COMME INHIBITEURS DE LA PROTÉASE SPÉCIFIQUE DE L'UBIQUITINE 1
  申请人：FORMA THERAPEUTICS INC

  公开号：WO2017087837A1

  公开（公告）日：2017-05-26

  The application relates to inhibitors of USP1 useful in the treatment of cancers, and other USP1 associated diseases and disorders, having the Formula: (I), where R1, R2, R3, R3', R4, R5, X1, X2, X3, X4, and n are described herein.

  该应用涉及对USP1的抑制剂，用于治疗癌症和其他与USP1相关的疾病和紊乱，其化学式为：(I)，其中R1、R2、R3、R3'、R4、R5、X1、X2、X3、X4和n如本文所述。