3-acetylamino-1-phenyl-1H-pyrazole-4-carboxylic acid ethylester | 1335105-18-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 3-acetylamino-1-phenyl-1H-pyrazole-4-carboxylic acid ethylester
• 英文别名: Ethyl 3-acetamido-1-phenylpyrazole-4-carboxylate
• CAS: 1335105-18-4
• 化学式: C₁₄H₁₅N₃O₃
• 分子量: 273.291
• InChiKey: QVNSZXKTZAQJQX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  20
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.21
• 拓扑面积：
  73.2
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  2-氰基-3-乙氧基丙烯酸乙酯 在 trans-N,N'-dimethyl-1,2-cyclohexyldiamine 、 potassium phosphate 、 copper(l) iodide 、 一水合肼 作用下， 以 1,4-二氧六环 、 乙醇 为溶剂， 反应 58.0h， 生成 3-acetylamino-1-phenyl-1H-pyrazole-4-carboxylic acid ethylester
  参考文献：
  名称：

  Application of Ullmann and Ullmann–Finkelstein reactions for the synthesis of N-aryl-N-(1H-pyrazol-3-yl) acetamide or N-(1-aryl-1H-pyrazol-3-yl) acetamide derivatives and pharmacological evaluation

  摘要：

  Ullmann-type reactions are becoming a major tool in medicinal chemistry. In this article, we describe the use of these Copper-catalyzed reactions with various precursors, acyl-heteroarylamines or pyrazoles of interest for pharmacomodulation. To the medicinal chemist they offer new, usually untapped disconnection approaches to compounds of interest. They thus open the way to new original analogues of bioactive compounds possibly not patented, from common building-blocks. They also allow C to N bioisosteric replacements, which sometimes are synthetically challenging. We report for the first time the critical effect of acetylamino substituents on the regioselective arylation of unsymmetrical pyrazoles that are useful for medicinal chemists. Finally, we have applied this strategy to the design of novel AT, receptor antagonists. Though this family has been extensively investigated in the past 30 years, N-arylation and C to N replacement made possible by Ullmann chemistry, can produce original antagonists. (C) 2011 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2011.05.056