4-(2-吡嗪基)-2-氨基噻唑 | 19847-11-1

• 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-(2-吡嗪基)-2-氨基噻唑
• 中文别名: 4-(吡嗪-2-基)噻唑-2-胺
• 英文名称: 2-amino-4-(pyrazin-2-yl)thiazole
• 英文别名: 4-(pyrazin-2-yl)thiazol-2-amine；2-Amino-4-pyrazinyl-thiazol；4-pyrazin-2-yl-1,3-thiazol-2-amine
• CAS: 19847-11-1
• 化学式: C₇H₆N₄S
• mdl: MFCD05722061
• 分子量: 178.217
• InChiKey: ALNOTRTXCBNEIG-UHFFFAOYSA-N

物化性质

• 熔点：
  207-208 °C
• 沸点：
  395.4±27.0 °C(Predicted)
• 密度：
  1.412±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.2
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  92.9
• 氢给体数：
  1
• 氢受体数：
  5

安全信息

• 海关编码：
  2934999090

反应信息

• 作为反应物：
  描述：

  苯甲酰氯 、 4-(2-吡嗪基)-2-氨基噻唑 在 N-甲基咪唑 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 18.0h， 生成 2-[(benzoyl)amino]-4-(pyrazin-2-yl)thiazole
  参考文献：
  名称：

  Structure–activity relationships of 2-aminothiazoles effective against Mycobacterium tuberculosis

  摘要：

  A series of 2-aminothiazoles was synthesized based on a HTS scaffold from a whole-cell screen against Mycobacterium tuberculosis (Mtb). The SAR shows the central thiazole moiety and the 2-pyridyl moiety at C-4 of the thiazole are intolerant to modification. However, the N-2 position of the aminothiazole exhibits high flexibility and we successfully improved the antitubercular activity of the initial hit by more than 128-fold through introduction of substituted benzoyl groups at this position. N-(3-Chlorobenzoyl)-4-(2-pyridinyl)-1,3-thiazol-2-amine (55) emerged as one of the most promising analogues with a MIC of 0.024 mu M or 0.008 mu g/mL in 7H9 media and therapeutic index of nearly similar to 300. However, 55 is rapidly metabolized by human liver microsomes (t(1/2) = 28 min) with metabolism occurring at the invariant aminothiazole moiety and Mtb develops spontaneous low-level resistance with a frequency of similar to 10 (5). (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2013.08.048
• 作为产物：
  描述：

  2-乙酰基吡嗪 在 氢溴酸 、 溴 、 溶剂黄146 、 N,N-二异丙基乙胺 作用下， 以 乙醇 、 水 为溶剂， 反应 7.0h， 生成 4-(2-吡嗪基)-2-氨基噻唑
  参考文献：
  名称：

  Structure–activity relationships of 2-aminothiazoles effective against Mycobacterium tuberculosis

  摘要：

  A series of 2-aminothiazoles was synthesized based on a HTS scaffold from a whole-cell screen against Mycobacterium tuberculosis (Mtb). The SAR shows the central thiazole moiety and the 2-pyridyl moiety at C-4 of the thiazole are intolerant to modification. However, the N-2 position of the aminothiazole exhibits high flexibility and we successfully improved the antitubercular activity of the initial hit by more than 128-fold through introduction of substituted benzoyl groups at this position. N-(3-Chlorobenzoyl)-4-(2-pyridinyl)-1,3-thiazol-2-amine (55) emerged as one of the most promising analogues with a MIC of 0.024 mu M or 0.008 mu g/mL in 7H9 media and therapeutic index of nearly similar to 300. However, 55 is rapidly metabolized by human liver microsomes (t(1/2) = 28 min) with metabolism occurring at the invariant aminothiazole moiety and Mtb develops spontaneous low-level resistance with a frequency of similar to 10 (5). (C) 2013 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmc.2013.08.048

文献信息

• Preparation of 3,4-Substituted-5-Aminopyrazoles and 4-Substituted-2-Aminothiazoles
  作者：Stepan Havel、Prashant Khirsariya、Naresh Akavaram、Kamil Paruch、Benoit Carbain

  DOI：10.1021/acs.joc.8b02655

  日期：2018.12.21

  3,4-Substituted-5-aminopyrazoles and 4-substituted-2-aminothiazoles are frequently used intermediates in medicinal chemistry and drug discovery projects. We report an expedient flexible synthesis of 3,4-substituted-5-aminopyrazoles (35 examples), based on palladium-mediated α-arylation of β-ketonitriles with aryl bromides. A library of 4-substituted-2-aminothiazoles (21 examples) was assembled by a

  3,4-取代的5-氨基吡唑和4-取代的2-氨基噻唑是药物化学和药物开发项目中经常使用的中间体。我们报道了基于钯介导的β-酮腈与芳基溴化物的α-芳基化反应的3,4-取代的5-氨基吡唑类化合物的便捷合成（35个例子）。通过使用新制备的，适当保护的4-硼酸-2-氨基噻唑的频哪醇酯和MIDA酯与（杂）芳基卤化物的Suzuki偶联的序列，组装4-取代的2-氨基噻唑的文库（21个实例）。