1-(4-Chloro-2-nitro-phenyl)-1H-[1,2,4]triazole-3,5-dicarboxylic acid diethyl ester | 237421-26-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 1-(4-Chloro-2-nitro-phenyl)-1H-[1,2,4]triazole-3,5-dicarboxylic acid diethyl ester
• 英文别名: Diethyl 1-(4-chloro-2-nitrophenyl)-1,2,4-triazole-3,5-dicarboxylate
• CAS: 237421-26-0
• 化学式: C₁₄H₁₃ClN₄O₆
• 分子量: 368.733
• InChiKey: VBHGLORHKQQBNZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  25
• 可旋转键数：
  7
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  129
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  1-(4-Chloro-2-nitro-phenyl)-1H-[1,2,4]triazole-3,5-dicarboxylic acid diethyl ester 在 锂硼氢 、 三溴化磷 、 铁粉 、 溶剂黄146 作用下， 以 四氢呋喃 为溶剂， 反应 32.0h， 生成 2-(bromomethyl)-7-chloro-4,5-dihydro-1,2,4-triazolo<1,5-a>quinoxalin-4-one
  参考文献：
  名称：

  4,5-Dihydro-1,2,4-triazolo[1,5-a]quinoxalin-4-ones:  Excitatory Amino Acid Antagonists with Combined Glycine/NMDA and AMPA Receptor Affinity

  摘要：

  A series of 4,5-dihydro-1,2,4-triazolo[1,5-alpha]quinoxalin-4-ones bearing different substituents on the benzo-fused ring and at position 2 were synthesized and biologically evaluated for their binding at glycine/NMDA and AMPA receptors. Most of the reported compounds show combined glycine/NMDA and AMPA receptor binding activity providing further evidences of the structural similarities of the binding pockets of both receptor recognition sites. Moreover, this study has pointed out some differences for the binding at each receptor type. In particular, for the glycine/NMDA receptor-ligand interaction, the presence of a free acidic function at position 2 and an electron-withdrawing substituent(s) nonbulkier than chlorine atom(s) on the benzo-fused moiety is required. Functional antagonism at the NMDA receptor-ion channel complex was also performed on some selected compounds.

  DOI：

  10.1021/jm981102r
• 作为产物：
  描述：

  4-氯-2-硝基苯胺 在 盐酸 、 氨 、 sodium nitrite 作用下， 以 1,4-二氧六环 、 甲醇 、 乙醚 为溶剂， 生成 1-(4-Chloro-2-nitro-phenyl)-1H-[1,2,4]triazole-3,5-dicarboxylic acid diethyl ester
  参考文献：
  名称：

  1,2,4-Triazolo[1,5-a]quinoxaline as a Versatile Tool for the Design of Selective Human A₃ Adenosine Receptor Antagonists:  Synthesis, Biological Evaluation, and Molecular Modeling Studies of 2-(Hetero)aryl- and 2-Carboxy-Substitued Derivatives

  摘要：

  A number of 4-oxo-substituted 1,2,4-triazolo[1,5-alquinoxaline derivatives bearing at position-2 the claimed (hetero)aryl moiety (compounds 1-15) but also a carboxylate group (16-28, 3236) or a hydrogen atom (29-31) were designed as human A(3) (hA(3)) adenosine receptor (AR) antagonists. This study produced some interesting compounds and among them the 2-(4methoxyphenyl)-1,2,4-triazolo[1,5-alquinoxalin-4-one (8), which can be considered one of the most potent and selective hA(3) adenosine receptor antagonists reported till now. Moreover, as a new finding, replacement of the classical 2-(hetero)aryl moiety with a 2-carboxylate function (compounds 16-28 and 32-36) maintained good hA(3) AR binding activity but, most importantly and interestingly, produced a large increase in bA(3) versus hA(1) selectivity. A receptor-based SAR analysis provided new interesting insights about the steric and electrostatic requirements that are important for the anchoring of these derivatives at the hA(3) receptor recognition site, thus highlighting the versatility of the triazoloquinoxaline scaffold for obtaining potent and selective hA(3) AR antagonists.

  DOI：

  10.1021/jm0504149