2-甲基-[1,4] 苯并噁嗪-3(4h)-酮 | 21744-83-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并恶嗪类
• 中文名称: 2-甲基-[1,4] 苯并噁嗪-3(4h)-酮
• 中文别名: 2-甲基-[1,4]苯并噁嗪-3(4h)-酮；2-甲基-2H-1,4-苯并恶唑-3(4H)-酮
• 英文名称: 3,4-dihydro-2-methyl-3-oxo-1,4(2H)-benzoxazine
• 英文别名: 2-methyl-1,4-benzoxazin-3-(4H)-one；3,4-dihydro-2-methyl-3-oxo-2H-1,4-benzoxazine；2-methyl-2H-benzo[b][1,4]oxazin-3(4H)-one；2-methyl-2H-1,4-benzomorpholin-3(4H)-one；2-methyl-(2H)-1,4-benzoxazin-3(4H)-one；2-methyl-2H-1,4-benzoxazin-3(4H)-one；2-methyl-4H-1,4-benzoxazin-3-one
• CAS: 21744-83-2
• 化学式: C₉H₉NO₂
• mdl: MFCD04141926
• 分子量: 163.176
• InChiKey: PILVMCZSXIINLV-UHFFFAOYSA-N

物化性质

• 熔点：
  143-144 °C
• 沸点：
  330.6±31.0 °C(Predicted)
• 密度：
  1.166±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 重原子数：
  12
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.222
• 拓扑面积：
  38.3
• 氢给体数：
  1
• 氢受体数：
  2

安全信息

• 海关编码：
  2934999090
• 危险性防范说明：
  P280,P305+P351+P338
• 危险性描述：
  H302
• 储存条件：
  存放于室温、干燥密封的环境中。

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
2-Methyl-1,4-benzoxazin-3-one
Product Name:
Synonyms: 2-Methyl-2H-benzo[b][1,4]oxazin-3(4H)-one

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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
Wear protective gloves/protective clothing/eye protection/face protection
P280:
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present
and easy to do – continue rinsing
P304+P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
P405: Store locked up

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Section 3. Composition/information on ingredients.
2-Methyl-1,4-benzoxazin-3-one
Ingredient name:
CAS number: 21744-83-2

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Section 4. First aid measures
Immediately wash skin with copious amounts of water for at least 15 minutes while removing
Skin contact:
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.
Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention.
Ingestion:

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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
Not specified
Appearance:
Boiling point: No data
Melting point: No data
Flash point: No data
Density: No data
Molecular formula: C10H11NO
Molecular weight: 161.2

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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.

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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-甲基-[1,4] 苯并噁嗪-3(4h)-酮 在 三氯化铝 、 乙酸酐 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 5.5h， 生成 6-(3-Dimethylamino-2-methyl-propionyl)-2-methyl-4H-benzo[1,4]oxazin-3-one
  参考文献：
  名称：

  6-Benzoxazinylpyridazin-3-ones: potent, long-acting positive inotrope and peripheral vasodilator agents

  摘要：

  A series of 6-benzoxazinylpyridazin-3-ones was prepared and evaluated for inhibition of cardiac phosphodiesterase (PDE) fraction III in vitro and for positive inotropic activity in vivo. 6-[3,4-Dihydro-3-oxo-1,4(2H)-benzoxazin-7-yl]-2,3,4,5-tetrahydro-5 - methylpyridazin-3-one (bemoradan) was found to be an extremely potent and selective inhibitor of canine PDE fraction III and a long-acting, potent, orally active inotropic vasodilator agent in various canine models. Additional benzoxazin-6-yl and -8-yl compounds were also prepared. Altering the pyridazinone substitution from the 6-position to the 7-position produced a 14-fold increase in the iv cardiotonic potency (ED50) from 77 to 5.4 micrograms/kg while substitution at the 8-position reduced potency. Methyl substitution at various sites in the molecule was also examined. Positive inotropic activity was maintained for between 8 and 24 h after a single oral dose (100 micrograms/kg) of bemoradan in dogs, thus making it one of the most potent and long-acting orally effective inotropes yet described. Bemoradan is currently under development as a cardiotonic agent for use in the management of congestive heart failure.

  DOI：

  10.1021/jm00163a061
• 作为产物：
  描述：

  2-苯氧基丙酸 在 硝酸 、 铁粉 、 溶剂黄146 作用下， 生成 2-甲基-[1,4] 苯并噁嗪-3(4h)-酮
  参考文献：
  名称：

  Bischoff, Chemische Berichte, 1900, vol. 33, p. 930

  摘要：

  DOI：

文献信息

• Thermolysis of o-nitro- and 2,4-dinitro-phenoxyacetic acids and related compounds
  作者：R. S. Goudie、P. N. Preston

  DOI：10.1039/j39710001718

  日期：——

  The products of thermolysis of o-nitro- and 2,4-dinitro-phenoxyacetic acids and their sulphur analogues have been investigated. Predominant products from the former include 2H-1,4-benzoxazin-3(4H)-one and derivatives thereof, benzoxazoles, and related compounds. In general, decomposition of the sulphur analogues follows related pathways. The mechanisms of formation of some of the products are considered

  已经研究了邻-硝基-和2,4-二硝基-苯氧基乙酸及其硫类似物的热解产物。前者的主要产物包括2 H -1,4-苯并恶嗪-3（4 H）-one及其衍生物，苯并恶唑和相关化合物。通常，硫类似物的分解遵循相关途径。考虑了某些产物的形成机理。
• Synthesis and Structure–Activity Relationship Studies of Benzo[ <i>b</i> ][1,4]oxazin‐3(4 <i>H</i> )‐one Analogues as Inhibitors of Mycobacterial Thymidylate Synthase X
  作者：Jakub Modranka、Jiahong Li、Anastasia Parchina、Michiel Vanmeert、Shrinivas Dumbre、Mayla Salman、Hannu Myllykallio、Hubert F. Becker、Roeland Vanhoutte、Lia Margamuljana、Hoai Nguyen、Rania Abu El‐Asrar、Jef Rozenski、Piet Herdewijn、Steven De Jonghe、Eveline Lescrinier

  DOI：10.1002/cmdc.201800739

  日期：2019.3.22

  report herein an optimization campaign of a novel series of inhibitors with a unique inhibition profile. The inhibitors display competitive inhibition toward the methylene tetrahydrofolate cofactor of ThyX, enabling us to generate a model of the compounds bound to their target, thus offering insight into their structure-activity relationships.

  由于发现了人类中不存在的黄素依赖性胸苷酸合酶（ThyX或FDTS），但对于多种病原体中的DNA生物合成至关重要，该酶一直被用于开发针对结核分枝杆菌的新型抗菌剂。广泛的传染病结核病（TB）的病原体。为了响应对更有效的抗结核药物的日益增长的需求，我们在之前的筛选工作基础上，在此报告了一系列具有独特抑制谱的新型抑制剂的优化方案。抑制剂对ThyX的亚甲基四氢叶酸辅因子表现出竞争性抑制作用，使我们能够生成与目标结合的化合物模型，从而深入了解其结构与活性之间的关系。
• [EN] FUSED IMIDAZOLE AND PYRAZOLE DERIVATIVES AS MODULATORS OF TNF ACTIVITY<br/>[FR] DÉRIVÉS D'IMIDAZOLE ET DE PYRAZOLE CONDENSÉS COMME MODULATEURS DE L'ACTIVITÉ DU TNF
  申请人：UCB BIOPHARMA SPRL

  公开号：WO2015086506A1

  公开（公告）日：2015-06-18

  A series of substituted benzimidazole, imidazo[1,2-a]pyridine and pyrazolo[1,5-a]pyridine derivatives, and analogues thereof, being potent modulators of human TNFα activity, are accordingly of benefit in the treatment and/or prevention of various human ailments, including autoimmune and inflammatory disorders; neurological and neurodegenerative disorders; pain and nociceptive disorders; cardiovascular disorders; metabolic disorders; ocular disorders; and oncological disorders.

  一系列替代苯并咪唑、咪唑并[1,2-a]吡啶和吡唑并[1,5-a]吡啶衍生物及其类似物，作为强效的人类TNFα活性调节剂，因此在治疗和/或预防各种人类疾病方面具有益处，包括自身免疫和炎症性疾病；神经和神经退行性疾病；疼痛和伤害感知性疾病；心血管疾病；代谢性疾病；眼科疾病；以及肿瘤学疾病。
• Development of Small-Molecule<i>Trypanosoma brucei N</i>-Myristoyltransferase Inhibitors: Discovery and Optimisation of a Novel Binding Mode
  作者：Daniel Spinks、Victoria Smith、Stephen Thompson、David A. Robinson、Torsten Luksch、Alasdair Smith、Leah S. Torrie、Stuart McElroy、Laste Stojanovski、Suzanne Norval、Iain T. Collie、Irene Hallyburton、Bhavya Rao、Stephen Brand、Ruth Brenk、Julie A. Frearson、Kevin D. Read、Paul G. Wyatt、Ian H. Gilbert

  DOI：10.1002/cmdc.201500301

  日期：2015.11

  bound in the previously reported active site, utilising a novel binding mode. This provides potential for further optimisation. The benzomorpholinone was also found to bind in a similar region. Using an X‐ray crystallography/structure‐based design approach, the benzomorpholinone series was further optimised, increasing activity against T. brucei NMT by >1000‐fold. A series of trypanocidal compounds were

  来自布氏锥虫的N-肉豆蔻酰转移酶(NMT)已在化学和生物学上被证实是人类非洲锥虫病的潜在药物靶点。我们之前报道了一些基于吡唑磺酰胺系列的非常有效的化合物的开发，这些化合物源自高通量筛选。在此，我们描述了在屏幕中也发现的噻唑烷酮和苯并吗啉支架的工作。大利什曼原虫中噻唑烷酮的 X 射线晶体结构NMT 利用一种新的结合模式显示了该化合物结合在先前报道的活性位点中。这提供了进一步优化的潜力。苯并吗啉酮也被发现在类似的区域结合。使用基于 X 射线晶体学/结构的设计方法，进一步优化了苯并吗啉酮系列，将抗布氏锥虫NMT 的活性提高了 1000 倍以上。确定了一系列具有合适体外 DMPK 特性的杀锥虫化合物，包括用于进一步开发的 CNS 暴露。需要进一步的工作来提高对人类 NMT 同种型的选择性和对布氏锥虫的活性。
• A simple and facile route for the synthesis of 2H-1,4-benzoxazin-3-(4H)-ones via reductive cyclization of 2-(2-nitrophenoxy)acetonitrile adducts in the presence of Fe/acetic acid
  作者：Chintakunta Ramesh、B. Rama Raju、Veerababurao Kavala、Chun-Wei Kuo、Ching-Fa Yao

  DOI：10.1016/j.tet.2010.11.095

  日期：2011.2

  A simple route for the synthesis of 1,4-benzoxazin-3-(4H)-ones is described herein. This method involves the reductive cyclization of 2-(2-nitrophenoxy)acetonitrile adducts in the presence of Fe/acetic acid in good to excellent yields. This system was compatible with various other functional groups.

  本文描述了合成1，4-苯并恶嗪-3-（4 H）-one的简单途径。该方法涉及在Fe /乙酸存在下2-（2-硝基苯氧基）乙腈加合物的还原环化，其收率良好至优异。该系统与其他各种功能组兼容。