4-甲基噻唑-2-甲酸 | 14542-16-6

• 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: 4-甲基噻唑-2-甲酸
• 中文别名: 4-甲基噻唑-2-羧酸
• 英文名称: 4-methylthiazole-2-carboxylic acid
• 英文别名: 4-methyl-1,3-thiazole-2-carboxylic acid；4-Methyl-thiazol-2-carbonsaeure；4-Methyl-2-carboxy-thiazol
• CAS: 14542-16-6
• 化学式: C₅H₅NO₂S
• 分子量: 143.166
• InChiKey: GNGDWDFLILPTKL-UHFFFAOYSA-N

物化性质

• 熔点：
  99 °C
• 沸点：
  122 °C(Press: 5 Torr)
• 密度：
  1.418±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  9
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  78.4
• 氢给体数：
  1
• 氢受体数：
  4

安全信息

• 危险品标志：
  Xi
• 海关编码：
  2934100090
• 危险性防范说明：
  P261,P305+P351+P338
• 危险性描述：
  H315,H319,H335
• 储存条件：
  室温

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 4-Methylthiazole-2-carboxylic acid
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: 4-Methylthiazole-2-carboxylic acid
CAS number: 14542-16-6

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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, 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: C5H5NO2S
Molecular weight: 143.2

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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, sulfur 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-甲基噻唑-2-甲酸 生成 4-甲基噻唑
  参考文献：
  名称：

  Kondo; Nagasawa, Yakugaku Zasshi/Journal of the Pharmaceutical Society of Japan, 1937, vol. 57, p. 909,913; dtsch. Ref. S. 249, 252

  摘要：

  DOI：
• 作为产物：
  描述：

  1-(4-甲基-噻唑-2-基)-乙醇 在 sodium hypoiodite 作用下， 生成 4-甲基噻唑-2-甲酸
  参考文献：
  名称：

  Studies on Model Systems for Thiamine Action. Synthesis of Reactive Intermediates, and Evidence on the Function of the Pyrimidine Ring¹

  摘要：

  DOI：

  10.1021/ja01521a042

文献信息

• Identification and Optimization of Pyrrolidine Derivatives as Highly Potent Ghrelin Receptor Full Agonists
  作者：Martin Cooper、Antonio Llinas、Peter Hansen、Moya Caffrey、Asim Ray、Stina Sjödin、Igor Shamovsky、Hiroki Wada、Tina Jellesmark Jensen、Ulf Sivars、Leif Hultin、Ulf Andersson、Sara Lundqvist、Karin Gedda、Lisa Jinton、Nina Krutrök、Richard Lewis、Paul Jansson、Cristina Gardelli

  DOI：10.1021/acs.jmedchem.0c00828

  日期：2020.9.10

  adipogenesis and therefore has been considered a promising therapeutic target for catabolic conditions. We previously reported on the synthesis and properties of an indane based series of ghrelin receptor full agonists which led to a sustained increase of insulin-like growth factor-1 in a dog pharmacodynamic study. Herein we report on the identification of a series of pyrrolidine or piperidine based

  肌肉萎缩和恶病质是罹患癌症，慢性阻塞性肺疾病和其他几种慢性疾病的患者中的常见合并症。肽激素生长激素释放肽发挥多效性作用，包括刺激生长激素分泌和随后增加胰岛素样生长因子-1水平，这是肌肉生长和修复的重要介质。Ghrelin还作用于炎症，食欲和脂肪形成，因此被认为是分解代谢疾病的有希望的治疗靶标。我们先前曾报道过基于茚满的系列生长素释放肽受体完全激动剂的合成和性质，该合成和性质在狗药效学研究中导致胰岛素样生长因子-1的持续增加。
• Discovery of Functionally Selective 7,8,9,10-Tetrahydro-7,10-ethano-1,2,4-triazolo[3,4-<i>a</i>]phthalazines as GABA_A Receptor Agonists at the α₃ Subunit
  作者：Michael G. N. Russell、Robert W. Carling、John R. Atack、Frances A. Bromidge、Susan M. Cook、Peter Hunt、Catherine Isted、Matt Lucas、Ruth M. McKernan、Andrew Mitchinson、Kevin W. Moore、Robert Narquizian、Alison J. Macaulay、David Thomas、Sally-Anne Thompson、Keith A. Wafford、José L. Castro

  DOI：10.1021/jm040883v

  日期：2005.3.1

  We have previously identified the 7,8,9,10-tetrahydro-7,10-ethano-1,2,4-triazolo[3,4-a]phthalazine (1) as a potent partial agonist for the alpha(3) receptor subtype with 5-fold selectivity in binding affinity over alpha(1). This paper describes a detailed investigation of the substituents on this core structure at both the 3- and 6-positions. Despite evaluating a wide range of groups, the maximum selectivity

  我们之前已经确定了7,8,9,10-四氢-7,10-乙醇-1,2,4-三唑并[3,4-a]酞嗪（1）是α（3）的有效部分激动剂。受体亚型，对α（1）的结合亲和力具有5倍的选择性。本文描述了在此核心结构的3位和6位上的取代基的详细研究。尽管评估了广泛的组，但相对于alpha（1）亚型，对alpha（3）亚型的亲和力可达到的最大选择性是12倍（对于57）。尽管大多数类似物在功效上均未显示选择性，但一些类似物确实在α（1）处表现出部分激动作用，而在α（3）处表现出拮抗作用（例如25和75）。但是，测试了两个类似物（93和96），它们都在6位上有三唑取代基，显示出对alpha（3）亚型的疗效明显高于alpha（1）亚型。这是该系列中可以在所需方向上实现选择性的第一个迹象。
• Observation of an Acryloyl−Thiamin Diphosphate Adduct in the First Step of Clavulanic Acid Biosynthesis
  作者：Matthew Merski、Craig A. Townsend

  DOI：10.1021/ja076704r

  日期：2007.12.1

  intramolecular imine formation with the cofactor as its cause. Circular dichroism experiments and others discount charge transfer as a likely explanation for the approximately 120 nm red shift of the chromophore ( approximately 25 kcal). Examples are well-known of charged molecules that exhibit significantly red-shifted UV-visible spectra compared to their neutral forms as, for example, polyene cations and

  克拉维酸（临床上重要的 β-内酰胺酶抑制剂）的第一个生物合成步骤是由硫胺二磷酸 (ThDP) 依赖性酶 N2-(2-羧乙基) 精氨酸合酶 (CEAS) 催化的。这种蛋白质在 ThDP 依赖性过程中进行独特的反应，其中形成 CN 键，并且提议涉及 ThDP 的亲电丙烯酰基-噻唑鎓中间体，这与此类酶通常产生的亲核烯胺种类不同。在这里，我们提供了推定的丙烯酰加合物存在的证据，并报告了对长波长发色团（λ = 433 nm）的意外观察，我们将其归因于这种酶结合物种。合成的化学模型既确认了其预期吸收（λ = 310-320 nm），又排除了自缩合和分子内亚胺形成，辅因子作为其原因。圆二色性实验和其他实验将电荷转移视为生色团大约 120 nm 红移（大约 25 kcal）的可能解释。示例是众所周知的带电分子，与它们的中性形式相比，例如多烯阳离子和染料（如靛蓝和花青）相比，它们表现出显着红移的紫外-可见光
• [EN] BICYCLO[3.2.1]OCTYL AMIDE DERIVATIVES AND USES OF SAME<br/>[FR] DÉRIVÉS BICYCLO[3.2.1]OCTYLAMIDE ET LEURS UTILISATIONS
  申请人：LUNDBECK & CO AS H

  公开号：WO2012088365A1

  公开（公告）日：2012-06-28

  The present invention provides bicyclo[3.2.1]octyl amide derivatives of formula (I): wherein L, R1 and R2 are as defined herein, or a pharmaceutically acceptable salt thereof; pharmaceutical compositions and methods using the same.

  本发明提供了公式（I）的双环[3.2.1]辛基酰胺衍生物，其中L、R1和R2如本文所定义，或其药学上可接受的盐；以及使用这些衍生物的药物组合物和方法。
• An infrared study of rotational isomerism in thiazole-2-carboxylates
  作者：Perry T. Kaye、G. Denis Meakins、Charles Willbe、Peter R. Williams

  DOI：10.1039/p19810002335

  日期：——

  containing a range of substituents at the 4- and 5-positions has been prepared. Solutions of these esters (mostly new compounds) show well resolved doublets in the i.r. CO region which arise from rotational isomers. The higher wavenumber components are assigned to the more polar carbonyl O,S-anti-s-trans-rotamers and the lower wavenumber components to the carbonyl O,S-syn-s-trans-forms. Small, but systematic

  制备了一系列在4-和5-位含有一系列取代基的烷基噻唑-2-羧酸酯。这些酯的溶液（大多数是新化合物）在ir C O区域显示出良好拆分的双峰，这是由旋转异构体引起的。较高的波数分量被分配到更多的极性羰基Ø，小号-反-小号-反式-rotamers和下波数分量羰Ø，小号-顺式-小号-反式-forms。注意到甲酯之间的微小但系统的差异。