3,5-二溴-1-甲基吡嗪-2(1h)-酮 | 87486-34-8

• 物质功能分类: 医药中间体 - 杂环化合物
• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪类
• 中文名称: 3,5-二溴-1-甲基吡嗪-2(1h)-酮
• 中文别名: 3,5-二溴-1-甲基吡嗪-2(1H)-酮
• 英文名称: 3,5-dibromo-1-methylpyrazin-2(1H)-one
• 英文别名: 3,5-dibromo-1-methylpyrazin-2-one；3,5-dibromo-1-methyl-2(1H)-pyrazinone；3,5-dibromo-1-methylpyrazine-2(1H)-one；3,5-dibromo-1-methyl-1,2-dihydropyrazin-2-one
• CAS: 87486-34-8
• 化学式: C₅H₄Br₂N₂O
• 分子量: 267.908
• InChiKey: LNVJQIHAUHVGEV-UHFFFAOYSA-N

物化性质

• 熔点：
  98 °C
• 沸点：
  261.9±50.0 °C(Predicted)
• 密度：
  2.20±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  10
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  32.7
• 氢给体数：
  0
• 氢受体数：
  2

安全信息

• 海关编码：
  2933990090
• 危险性防范说明：
  P280,P305+P351+P338
• 危险性描述：
  H302
• 储存条件：
  2-8°C

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 3,5-Dibromo-1-methylpyrazin-2(1h)-one
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-Dibromo-1-methylpyrazin-2(1h)-one
CAS number: 87486-34-8

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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: C5H4Br2N2O
Molecular weight: 267.9

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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

制备方法与用途

用途

3,5-二溴-1-甲基吡嗪-2(1H)-酮可用作医药合成中间体，如用于制备5-溴-3-(4-(1,4-二甲基-3-氧代哌嗪-2-基)苯基氨基)-1-甲基吡嗪-2(1H)-酮。该化合物可通过1,2-二氯苯与草酰溴反应制备。

制备

将1,2-二氯苯（100 mL）和草酰溴（60.6 g，281 mmol）加入装配有磁搅拌器和回流冷凝管的250-mL三颈圆底烧瓶中。向此溶液中逐步添加甲氨基乙腈（7.01 g，65.8 mmol），然后在氮气氛围下将反应物加热至80℃。反应持续18小时后，使混合物冷却至室温，在减压条件下蒸发溶剂，随后通过快速色谱法纯化剩余物，最终得到3,5-二溴-1-甲基吡嗪-2(1H)-酮（2.87 g，产率16%），为灰白色固体，熔点94-95℃；MS (ESI+) m/z 267 (M+H)。

反应信息

• 作为反应物：
  描述：

  3,5-二溴-1-甲基吡嗪-2(1h)-酮 在 ammonium hydroxide 作用下， 以 1,4-二氧六环 为溶剂， 反应 20.0h， 以79%的产率得到3-amino-5-bromo-1-methylpyrazin-2-one
  参考文献：
  名称：

  BROMODOMAIN INHIBITORS

  摘要：

  本发明涉及替代杂环衍生物化合物，包括所述化合物的组合物，以及通过抑制溴结构域介导的蛋白质乙酰赖氨酸区域的识别来进行表观遗传调控的所述化合物和组合物的用途。所述组合物和方法对于癌症和肿瘤性疾病的治疗是有用的。

  公开号：

  US20150111885A1
• 作为产物：
  描述：

  草酰溴 、 甲氨基乙腈盐酸盐 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 16.0h， 以92%的产率得到3,5-二溴-1-甲基吡嗪-2(1h)-酮
  参考文献：
  名称：

  [EN] N-SUBSTITUTED HETEROCYCLIC DERIVATIVES AS KINASE INHIBITORS
  [FR] DÉRIVÉS HÉTÉROCYCLIQUES N-SUBSTITUÉS À TITRE D'INHIBITEURS DE KINASES

  摘要：

  本发明提供了式（I）的N-取代新异环衍生物作为蛋白激酶抑制剂，其中R1、R2和'n'的含义与规范中给出的含义相同，并且其药学上可接受的盐在治疗和预防疾病或紊乱方面具有用处，特别是它们在抑制激酶酶有优势的疾病或紊乱中的用途，更特别是BTK酶。本发明还提供了合成和给予激酶抑制剂化合物的方法。本发明还提供了包含至少一种激酶抑制剂化合物的药物配方，以及药学上可接受的载体、稀释剂或赋形剂。

  公开号：

  WO2014125410A1

文献信息

• BTK INHIBITOR
  申请人：Hubei Bio-Pharmaceutical Industrial Technological Institute Inc.

  公开号：US20170313683A1

  公开（公告）日：2017-11-02

  Provided are a series of BTK inhibitors, and specifically disclosed are a compound, pharmaceutically acceptable salt thereof, tautomer thereof or prodrug thereof represented by formula (I), (II), (III) or (IV).

  提供了一系列的BTK抑制剂，特别公开了一种由公式(I)、(II)、(III)或(IV)表示的化合物、药用可接受的盐、互变异构体或前药。
• CERTAIN SUBSTITUTED AMIDES, METHOD OF MAKING, AND METHOD OF USE THEREOF
  申请人：BLOMGREN Peter A.

  公开号：US20090082330A1

  公开（公告）日：2009-03-26

  Compounds of Formula I that inhibit Btk are described herein. Pharmaceutical compositions comprising at least one compound of Formula I, together with at least one pharmaceutically acceptable vehicle chosen from carriers, adjuvants, and excipients, are described. Methods of treating patients suffering from certain diseases responsive to inhibition of Btk activity and/or B-cell activity are described. Methods for determining the presence of Btk in a sample are described.

  公式I的化合物能够抑制Btk，本文中对此进行了描述。描述了包含至少一个公式I化合物的药物组合物，以及至少一个从载体、佐剂和辅料中选择的药用辅料。描述了治疗患有对Btk活性抑制和/或B细胞活性有反应的某些疾病患者的方法。还描述了用于确定样本中存在Btk的方法。
• 8-FLUOROPHTHALAZIN-1(2H)-ONE COMPOUNDS
  申请人：Genentech, Inc.

  公开号：US20130116246A1

  公开（公告）日：2013-05-09

  8-Fluorophthalazin-1(2h)-one compounds of Formula II where one or two of X 1 , X 2 , and X 3 are N, are provided, including stereoisomers, tautomers, and pharmaceutically acceptable salts thereof, useful for inhibiting Btk kinase, and for treating immune disorders such as inflammation mediated by Btk kinase. Methods of using compounds of Formula II for in vitro, in situ, and in vivo diagnosis, and treatment of such disorders in mammalian cells, or associated pathological conditions, are disclosed.

  提供了公式II的8-氟邻菲啉-1(2H)-酮化合物，其中X1、X2和X3中的一个或两个是N，包括立体异构体、互变异构体和其药用可接受盐，用于抑制Btk激酶，并用于治疗由Btk激酶介导的炎症等免疫紊乱。公开了使用公式II化合物进行哺乳动物细胞中的体外、体内和体内诊断以及治疗这类疾病或相关病理条件的方法。
• [EN] INHIBITOR OF BTK AND MUTANTS THEREOF<br/>[FR] INHIBITEURS DE BTK ET LEURS MUTANTS
  申请人：NEWAVE PHARMACEUTICAL INC

  公开号：WO2020176403A1

  公开（公告）日：2020-09-03

  The disclosure includes compounds of Formula (I) (1) wherein Q0, Q1, Q2, Q3, Q4, Z, W, i, j, m, n, Warhead, R0, R1, R3, R4, R5, R6, and R7, are defined herein. Also disclosed is a method for treating a neoplastic disease, autoimmune disease, and inflammatory disorder with these compounds.

  该披露包括式（I）（1）的化合物，其中Q0、Q1、Q2、Q3、Q4、Z、W、i、j、m、n、Warhead、R0、R1、R3、R4、R5、R6和R7在此处被定义。还披露了使用这些化合物治疗恶性肿瘤疾病、自身免疫疾病和炎症性疾病的方法。
• [EN] HETEROARYL HETEROCYCLIC COMPOUNDS AND USES THEREOF<br/>[FR] COMPOSÉS HÉTÉROCYCLIQUES HÉTÉROARYLES ET LEURS UTILISATIONS
  申请人：HUTCHISON MEDIPHARMA LTD

  公开号：WO2021164735A1

  公开（公告）日：2021-08-26

  Provided herein are heteroaryl heterocyclic compounds of formula (I), pharmaceutical compositions comprising same, methods for preparing same, and uses thereof, wherein the variables are as defined in the description.

  本文提供了公式（I）的杂环杂芳基化合物，包括这些化合物的药物组合物，制备这些化合物的方法以及它们的用途，其中变量如描述中所定义。