恶唑-2-甲酸乙酯 | 33036-67-8

• 物质功能分类: 医药中间体 - 原料药中间体
• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 中文名称: 恶唑-2-甲酸乙酯
• 中文别名: 1,3-噁唑-2-羧酸乙酯；2-噁唑羧酸乙酯
• 英文名称: ethyl oxazole-2-carboxylate
• 英文别名: ethyl 2-oxazolecarboxylate；ethyl 1,3-oxazole-2-carboxylate
• CAS: 33036-67-8
• 化学式: C₆H₇NO₃
• mdl: MFCD04114939
• 分子量: 141.126
• InChiKey: JYQRCIRWXOYCLA-UHFFFAOYSA-N

物化性质

• 沸点：
  194.0±23.0 °C(Predicted)
• 密度：
  1.177±0.06 g/cm3(Predicted)
• 溶解度：
  可溶于丙酮、氯仿、甲醇

计算性质

• 辛醇/水分配系数(LogP)：
  0.9
• 重原子数：
  10
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.333
• 拓扑面积：
  52.3
• 氢给体数：
  0
• 氢受体数：
  4

安全信息

• 海关编码：
  2934999090
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H315,H319,H335

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: Ethyl oxazole-2-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 oxazole-2-carboxylate
CAS number: 33036-67-8

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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, under −20◦C.
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: C6H7NO3
Molecular weight: 141.1

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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.

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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：

  恶唑-2-甲酸乙酯 在 甲醇 、 锂硼氢 作用下， 反应 3.0h， 以93%的产率得到2-羟甲基恶唑
  参考文献：
  名称：

  一种2-(噁唑基)乙胺的制备方法

  摘要：

  本发明公开了一种2‑(噁唑基)乙胺的制备方法；本发明2‑(噁唑基)乙胺的制备方法，有效避免噁唑开环副反应，重复性好，转化率和收率高，易纯化；反应条件温和，安全性高，降低对操作人员的安全隐患，降低了生产的操作安全等级，绿色环保；得到的2‑(噁唑基)乙胺产品纯度高，质量好，有利于实现工业化。

  公开号：

  CN110526878A
• 作为产物：
  描述：

  异噁唑-3-羧酸 以 乙醚 为溶剂， 生成 恶唑-2-甲酸乙酯
  参考文献：
  名称：

  与异恶唑合成；异恶唑并[2,3- a ]吡啶鎓盐的生产以及异恶唑-3-羧酸盐向恶唑-2-羧酸盐的光化学转化

  摘要：

  3-（4-乙氧基丁酰基）异恶唑（6）的环化得到4,5,6,7-四氢-4-氧代异恶唑并[2,3- a ]溴化吡啶鎓（7）。尝试用沸腾的乙酸酐对酮（7）进行芳构化未成功，但是溴化反应生成了二溴代酮（9），将其脱氢溴化为5-溴代-4-羟基异恶唑并[2,3- a ]溴化吡啶鎓（10）。 。描述了异恶唑-3-羧酸盐到相应的恶唑-2-羧酸盐的光化学转化。

  DOI：

  10.1039/j39710001196

文献信息

• HCV INHIBITORS
  申请人：Green Michael J.

  公开号：US20080161254A1

  公开（公告）日：2008-07-03

  The present invention is directed to compounds that are antiviral agents. Specifically, the compounds of the present invention inhibit replication of HCV and are therefore useful in treating hepatitis C infections. The present invention is also directed to pharmaceutical compositions comprising these compounds and processes for preparing them.

  本发明涉及作为抗病毒剂的化合物。具体而言，本发明的化合物能抑制HCV的复制，因此在治疗丙型肝炎感染中非常有用。本发明还涉及包含这些化合物的药物组合物以及制备这些化合物的过程。
• [EN] 6,7-DIHYDROPYRAZOLO[1,5-A]PYRAZIN-4(5H)-ONE COMPOUNDS AND THEIR USE AS NEGATIVE ALLOSTERIC MODULATORS OF MGLUR2 RECEPTORS<br/>[FR] COMPOSÉS 6,7-DIHYDROPYRAZOLO[1,5-A] PYRAZIN-4(5H)-ONE ET LEUR UTILISATION COMME MODULATEURS ALLOSTÉRIQUES NÉGATIFS DES RÉCEPTEURS MGLUR2
  申请人：JANSSEN PHARMACEUTICA NV

  公开号：WO2016016395A1

  公开（公告）日：2016-02-04

  The present invention relates to novel 6,7-dihydropyrazolo[1,5-a]pyrazin-4(5H)-one derivatives as negative allosteric modulators (NAMs) of the metabotropic glutamate receptor subtype 2 ("mGluR2"). The invention is also directed to pharmaceutical compositions comprising such compounds, to processes for preparing such compounds and compositions, and to the use of such compounds and compositions for the prevention or treatment of disorders in which the mGluR2 subtype of metabotropic receptors is involved.

  本发明涉及新型的6,7-二氢吡唑[1,5-a]吡嗪-4(5H)-酮衍生物，作为代谢型谷氨酸受体2型("mGluR2")的负变构调节剂(NAMs)。该发明还涉及包含这些化合物的药物组合物，制备这些化合物和组合物的方法，以及使用这些化合物和组合物预防或治疗涉及代谢型受体mGluR2亚型的疾病。
• Continuous flow as an enabling technology: a fast and versatile entry to functionalized glyoxal derivatives
  作者：Fabio Lima、Mark Meisenbach、Berthold Schenkel、Joerg Sedelmeier

  DOI：10.1039/d1ob00288k

  日期：——

  complementary strategies employing organolithium chemistry for the synthesis of glyoxal derivatives. Micro-mixer technology allows for the generation of unstable organometallic intermediates and their instantaneous in-line quenching with esters as electrophiles. Selective mono-addition was observed via putative stabilized tetrahedral intermediates. Advantages offered by flow chemistry technologies facilitate

  我们在此报告了两种互补策略，这些策略采用有机锂化学合成乙二醛衍生物。微型混合器技术允许生成不稳定的有机金属中间体，并使用酯类作为亲电体对其进行瞬时在线猝灭。通过推定的稳定的四面体中间体观察到选择性单加成。流动化学技术提供的优势有助于直接有效地接触被掩盖的1,2-二羰基化合物，同时减少了不良副产物的形成。这两种方法使得能够以每分钟克数的产量生产用于杂环化学的先进且有价值的合成构件。
• MONOACYLGLYCEROL LIPASE INHIBITORS
  申请人：Stichting Het Nederlands Kanker Instituut- Antoni van Leeuwenhoek Ziekenhuis

  公开号：EP3875452A1

  公开（公告）日：2021-09-08

  Provided are compounds of formula (I), or a pharmaceutically acceptable salt or solvate thereof: Also provided are compositions comprising compounds of formula (I). The compounds and compositions are also provided for use as medicaments, for example as medicaments useful in the treatment of a condition modulated by monoacylglycerol lipase (MAGL). Also provided are the use of compounds and compositions for the inhibition of monoacylglycerol lipase (MAGL).

  提供的是式(I)的化合物，或其药学上可接受的盐或溶剂： 还提供了包含式(I)化合物的组合物。这些化合物和组合物还可用作药物，例如用于治疗由单酰基甘油脂酶（MAGL）调节的疾病的药物。还提供了利用这些化合物和组合物来抑制单酰基甘油脂酶（MAGL）的用途。
• INHIBITORS OF CATHEPSIN B
  申请人：Holsinger Leslie

  公开号：US20090203629A1

  公开（公告）日：2009-08-13

  The present invention is directed to a method of using compounds of Formula (I) to inhibit Cathepsin B. Specifically the compounds of the present invention are useful as therapeutic agents for the treatment of tumor invasion, metastasis, Alzheimer's Disease, arthritis, inflammatory diseases such as chronic and acute pancreatitis, inflammatory airway disease, and bone and joint disorders, including osteoporosis, osteoarthritis, rheumatoid arthritis, psoriasis, and other autoimmune disorders, liver fibrosis, including liver fibrosis associated with HCV, all types of steatosis (including non-alcoholic steatohepatitis) and alcohol-associated steatohepatitis, non-alcoholic fatty liver disease, forms of pulmonary fibrosis including idiopathic pulmonary fibrosis, pathological diagnosis of interstitial pneumonia following lung biopsy, renal fibrosis, cardiac fibrosis, retinal angiogenesis and fibrosis/gliosis in the eye, schleroderma, and systemic sclerosis. The compounds of Formula (I) are also useful for treating subjects with both HCV and fibrosis in a mammal, particularly liver fibrosis, and subjects affirmatively diagnosed or at risk for both HCV and liver fibrosis.

  本发明涉及一种使用化合物I的方法来抑制蛋白酶B。具体地说，本发明的化合物可用作治疗肿瘤侵袭、转移、阿尔茨海默病、关节炎、慢性和急性胰腺炎、炎症性疾病（如慢性和急性胰腺炎、炎症性气道疾病、骨骼和关节疾病，包括骨质疏松症、骨关节炎、类风湿性关节炎、牛皮癣和其他自身免疫性疾病、包括与丙型肝炎病毒相关的肝纤维化、所有类型的脂肪变性（包括非酒精性脂肪肝炎）和酒精相关性脂肪肝炎、非酒精性脂肪肝病、包括特发性肺纤维化、肺活检后的间质性肺炎病理诊断、肾脏纤维化、心脏纤维化、视网膜血管生成和眼部纤维化/胶质增生、硬皮病和全身性硬化症等疾病的治疗剂。化合物I也适用于治疗哺乳动物中同时患有丙型肝炎病毒和纤维化的受试者，特别是肝纤维化，以及已经确诊或有患有丙型肝炎病毒和肝纤维化风险的受试者。