4-甲基-1,3-恶唑-5-甲酸乙酯 | 20485-39-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 中文名称: 4-甲基-1,3-恶唑-5-甲酸乙酯
• 中文别名: 4-甲基噁唑-5-甲酸乙酯；4-甲基-1,3-噁唑-5-羧酸乙酯；4-甲基-5-噁唑甲酸乙酯
• 英文名称: ethyl 4-methyloxazole-5-carboxylate
• 英文别名: ethyl 4-methyl-1,3-oxazole-5-carboxylate；ethyl 4-methyl-oxazole-5-formate；4-methyl-oxazole-5-carboxylic acid ethyl ester；4-methyl-5-oxazolecarboxylic acid ethyl ester
• CAS: 20485-39-6
• 化学式: C₇H₉NO₃
• mdl: MFCD00062573
• 分子量: 155.153
• InChiKey: XNMORZSEENWFLI-UHFFFAOYSA-N

物化性质

• 熔点：
  38 °C
• 沸点：
  62°C/1.5mmHg(lit.)
• 密度：
  1.139±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 重原子数：
  11
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.428
• 拓扑面积：
  52.3
• 氢给体数：
  0
• 氢受体数：
  4

安全信息

• 危险品标志：
  Xi
• 海关编码：
  2934999090
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H315,H319,H335
• 储存条件：
  存放于惰性气体中，避免与空气接触。

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: Ethyl 4-methyloxazole-5-carboxylate
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: Ethyl 4-methyloxazole-5-carboxylate
CAS number: 20485-39-6

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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: C7H9NO3
Molecular weight: 155.2

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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：

  4-甲基-1,3-恶唑-5-甲酸乙酯 在 sodium hydroxide 、 草酰氯 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 9.02h， 生成 4-甲基恶唑-5-羰酰氯
  参考文献：
  名称：

  呋喃类固醇合成的研究。I.Viridin模型。

  摘要：

  通过分子内Diels-Alder / retro-Diels-Alder反应，然后进行互变异构化的序列，将具有一般结构I的炔基恶唑直接转化为呋喃[2,3-b]苯酚衍生物II。适当地官能化的酚II经过分子内的酚-二烯酮-醛醇缩合，生成具有viridin（1）类呋喃类固醇特性的A，B，E环骨架III。

  DOI：

  10.1021/ol061697h
• 作为产物：
  描述：

  2-氯乙酰乙酸乙酯 在 硫酸 、 formamide 作用下， 以 N,N-二甲基甲酰胺 、 甲苯 为溶剂， 反应 6.5h， 生成 4-甲基-1,3-恶唑-5-甲酸乙酯
  参考文献：
  名称：

  Synthesis of 4-methyl-5-ethoxycarbonyloxazole

  摘要：

  DOI：

  10.1007/bf00758425

文献信息

• [EN] MACROCYCLIC BROAD SPECTRUM ANTIBIOTICS<br/>[FR] ANTIBIOTIQUES MACROCYCLIQUES À LARGE SPECTRE
  申请人：RQX PHARMACEUTICALS INC

  公开号：WO2018149419A1

  公开（公告）日：2018-08-23

  Provided herein are antibacterial compounds, wherein the compounds in some embodiments have broad spectrum bioactivity. In various embodiments, the compounds act by inhibition of bacterial type 1 signal peptidase (SpsB), an essential protein in bacteria. Pharmaceutical compositions and methods for treatment using the compounds described herein are also provided.

  本文提供了抗菌化合物，其中在某些实施例中，这些化合物具有广谱生物活性。在各种实施例中，这些化合物通过抑制细菌类型1信号肽酶（SpsB）发挥作用，这是细菌中的一种必需蛋白质。还提供了使用所述化合物的药物组合物和治疗方法。
• [EN] COMPOUNDS HAVING AFFINITY FOR THE DOPAMINE D3 RECEPTOR AND USES THEREOF IN MEDICINE<br/>[FR] COMPOSES POSSEDANT UNE AFFINITE POUR LE RECEPTEUR DE DOPAMINE D3 ET UTILISATIONS DE CES COMPOSES EN MEDECINE
  申请人：GLAXO GROUP LTD

  公开号：WO2006002928A1

  公开（公告）日：2006-01-12

  Compounds of formula (I) or a salt thereof are disclosed, wherein A, m R1, R2, R3, q, W1, W2, R4 and R5 are as defined in the description. Processes for preparation and uses of the compounds in medicine, for example for the treatment of schizophrenia or drug dependency, are also disclosed.

  公开了化合物的公式(I)或其盐，其中A，m，R1，R2，R3，q，W1，W2，R4和R5如描述中所定义。还公开了制备这些化合物的方法以及在医学中的用途，例如用于治疗精神分裂症或药物依赖症。
• PYRAZOLE COMPOUNDS AND USE THEREOF
  申请人：Takagi Masaki

  公开号：US20090036450A1

  公开（公告）日：2009-02-05

  The pyrazole compound of the present invention is represented by the following general formula (I). The pyrazole compound of the present invention or a salt thereof or a solvate thereof potently inhibits liver glycogen phosphorylase, and, therefore, is useful as a therapeutic or prophylactic agent for diabetes. wherein each symbol denotes as described in the specifications.

  本发明的吡唑化合物由以下一般式（I）表示。本发明的吡唑化合物或其盐或溶剂化物强力抑制肝糖原磷酸化酶，因此，可用作糖尿病的治疗或预防剂。其中，每个符号如规范中所述。
• [EN] COMPOUNDS FOR THE TREATMENT OF HEPATITIS C<br/>[FR] COMPOSÉS UTILISABLES POUR LE TRAITEMENT DE L'HÉPATITE C
  申请人：BRISTOL MYERS SQUIBB CO

  公开号：WO2011112191A1

  公开（公告）日：2011-09-15

  The disclosure provides compounds of formula (I), including their salts, as well as compositions and methods of using the compounds. The compounds have activity against hepatitis C virus (HCV) and may be useful in treating those infected with HCV.

  本公开提供了公式(I)的化合物，包括它们的盐，以及使用这些化合物的组合物和方法。这些化合物对丙型肝炎病毒(HCV)具有活性，可能对治疗HCV感染者有益。
• Rhodium(III)-Catalyzed<i>ortho</i>-Heteroarylation of Phenols through Internal Oxidative CH Activation: Rapid Screening of Single-Molecular White-Light-Emitting Materials
  作者：Bijin Li、Jingbo Lan、Di Wu、Jingsong You

  DOI：10.1002/anie.201507272

  日期：2015.11.16

  Reported herein is the first example of a transition‐metal‐catalyzed internal oxidative CH/CH cross‐coupling between two (hetero)arenes through a traceless oxidation directing strategy. Without the requirement of an external metal oxidant, a wide range of phenols, including phenol‐containing natural products, can undergo the coupling with azoles to assemble a large library of highly functionalized

  本文报道的是过渡金属催化的内部氧化CH / C的第一个例子通过无痕氧化引导策略在两个（杂）芳烃之间进行H交叉偶联。在不需要外部金属氧化剂的情况下，各种各样的酚（包括含酚的天然产物）可以与唑类偶联，从而组装出一个高度官能化的2-（2-羟基苯基）唑类大型文库。该路线为快速筛选发白光的材料提供了机会。作为说明性的例子，两个双（三苯胺）的2-（2-羟基苯基）恶唑类化合物很难获得，它们显示出明亮的白光发射，高量子产率和热稳定性。还呈现白色光发射的第一例中，在一个单一的激发态分子内质子转移系统，2-（2-羟基苯基）吡咯，从而突出C的魅力在新的有机光电子材料的发现中进行H活化。

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