ethyl 2-(3,5-dichlorophenoxy)-3-oxobutyrate | 119138-48-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: ethyl 2-(3,5-dichlorophenoxy)-3-oxobutyrate
• 英文别名: Ethyl 2-(3,5-dichlorophenoxy)-3-oxobutanoate
• CAS: 119138-48-6
• 化学式: C₁₂H₁₂Cl₂O₄
• 分子量: 291.131
• InChiKey: NLFWFOKATVIBEE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  18
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  ethyl 2-(3,5-dichlorophenoxy)-3-oxobutyrate 在 盐酸肼 、 caesium carbonate 作用下， 以 乙醇 、 N,N-二甲基甲酰胺 为溶剂， 反应 3.0h， 生成 2-(4-(3,5-dichlorophenoxy)-3-ethoxy-5-methyl-1H-pyrazol-1-yl)-5-ethylpyrimidine
  参考文献：
  名称：

  Original 2-(3-Alkoxy-1H-pyrazol-1-yl)pyrimidine Derivatives as Inhibitors of Human Dihydroorotate Dehydrogenase (DHODH)

  摘要：

  From a research program aimed at the design of new chemical entities followed by extensive screening on various models of infectious diseases, an original series of 2-(3-alkoxy-1H-pyrazol-1-yl)pyrimidines endowed with notable antiviral properties were found. Using a whole cell measles virus replication assay, we describe here some aspects of the iterative process that, from 2-(4-benzyl-3-ethoxy-5-methyl-1H-pyrazol-1-yl)pyrimidine, led to 2-(4-(2,6-difluorophenoxy)-3-isopropoxy-5-methyl-1H-pyrazol-1-yl)-5-ethylpyrimidine and a 4000-fold improvement of antiviral activity with a subnanomolar level of inhibition. Moreover, recent precedents in the literature describing antiviral derivatives acting at the level of the de novo pyrimidine biosynthetic pathway led us to determine that the mode of action of this series is based on the inhibition of the cellular dihydroorotate dehydrogenase (DHODH), the fourth enzyme of this pathway. Biochemical studies with recombinant human DHODH led us to measure IC50 as low as 13 nM for the best example of this original series when using 2,3-dimethoxy-5-methyl-6-(3-methyl-2-butenyl)-1,4-benzoquinone (coenzyme Q(1)) as a surrogate for coenzyme Q(10), the cofactor of this enzyme.

  DOI：

  10.1021/jm501446r
• 作为产物：
  描述：

  3,5-二氯苯酚 在 sodium hydride 作用下， 以 苯 为溶剂， 反应 50.0h， 生成 ethyl 2-(3,5-dichlorophenoxy)-3-oxobutyrate
  参考文献：
  名称：

  Selective heteronuclear NOE enhancements in benzoheterocycles. Effect of ring size on indirect three-spin effects

  摘要：

  对五种4-甲基香豆素、六种4-甲基-2(1H)-喹诺酮以及九种3-甲基苯并[b]呋喃（其中包括六种新化合物）的80 MHz 1H NMR和20 MHz 13C NMR谱进行了全面归属。在低功率预饱和甲基质子后，测量了同核1H{1H} NOE和选择性异核13C{1H} NOE。在适当的13C-1H-{1H}三自旋体系中发现了间接的负异核NOE增强，并且发现其幅度依赖于环的大小。首次描述了非质子化碳上的间接异核NOE增强的实例。

  DOI：

  10.1002/mrc.1260260615