8-Imidazol-1-yl-4-oxo-7-trifluoromethyl-4,5-dihydro-[1,2,4]triazolo[1,5-a]quinoxaline-2-carboxylic acid ethyl ester | 647836-13-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氮杂萘
• 英文名称: 8-Imidazol-1-yl-4-oxo-7-trifluoromethyl-4,5-dihydro-[1,2,4]triazolo[1,5-a]quinoxaline-2-carboxylic acid ethyl ester
• 英文别名: ethyl 8-imidazol-1-yl-4-oxo-7-(trifluoromethyl)-5H-[1,2,4]triazolo[1,5-a]quinoxaline-2-carboxylate
• CAS: 647836-13-3
• 化学式: C₁₆H₁₁F₃N₆O₃
• 分子量: 392.297
• InChiKey: YWKYNUHGGDTCRD-UHFFFAOYSA-N

物化性质

• 熔点：
  266 °C (decomp)(Solv: ethanol (64-17-5))
• 密度：
  1.70±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  28
• 可旋转键数：
  4
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.19
• 拓扑面积：
  104
• 氢给体数：
  1
• 氢受体数：
  9

反应信息

• 作为反应物：
  描述：

  8-Imidazol-1-yl-4-oxo-7-trifluoromethyl-4,5-dihydro-[1,2,4]triazolo[1,5-a]quinoxaline-2-carboxylic acid ethyl ester 在 sodium hydroxide 作用下， 以 乙醇 为溶剂， 反应 1.0h， 以80%的产率得到8-Imidazol-1-yl-4-oxo-7-trifluoromethyl-4,5-dihydro-[1,2,4]triazolo[1,5-a]quinoxaline-2-carboxylic acid
  参考文献：
  名称：

  Synthesis and Biological Evaluation of Analogues of 7-Chloro-4,5-dihydro-4- oxo-8-(1,2,4-triazol-4-yl)-1,2,4-triazolo[1,5-a]quinoxaline-2-carboxylic Acid (TQX-173) as Novel Selective AMPA Receptor Antagonists

  摘要：

  In recent papers (Catarzi, D.; et al. J. Med. Chem. 2000, 43, 3824-3826; 2001, 44, 31573165) we reported chemical and biological studies on 4,5-dihydro-4-oxo-1,2,4-triazolo[1,5-a]-quinoxaline-2-carboxylates (TQXs) bearing different nitrogen-containing heterocycles at position-8. In particular, from these studies it emerged that both the 7-chloro-4,5-dihydro-4-oxo-8-(1,2,4-triazol-4-yl)-1,2,4-triazolo[1,5-a] quinoxaline-2-carboxylic acid TQX-173 (compound B) and its corresponding ethyl ester (compound A) were the most active and selective compounds of this series. In pursuing our investigation on the structure-activity relationships of these TQX derivatives, different electron-withdrawing groups (CF3, NO2) were introduced at position 7 on the TQX ring system, replacing the 7-chloro substituent of B and of other selected 8-heteroaryltriazoloquinoxaline-2-carboxylates previously described. All the newly synthesized compounds were biologically evaluated for their binding at the Gly/NMDA, AMPA, and KA high-affinity receptors. Gly/NMDA binding assays were performed to assess the selectivity of the reported compounds toward the AMPA receptor. Compounds endowed with micromolar binding affinity for the KA high-affinity binding site were also evaluated for their binding at the KA low-affinity receptor. Some selected compounds were also tested for their functional antagonist activity at the AMPA and NMDA receptor-ion channel complex. The results obtained in this study have pointed out that 4,5-dihydro-7-nitro-4-oxo-8-(3-carboxypyrrol-1-yl)-1,2,4-triazolo[1,5-alquinoxaline-2-carboxylic acid (9b) and its corresponding ethyl ester (9a) are the most potent and selective AMPA receptor antagonists reported to date among the TQX series.

  DOI：

  10.1021/jm030906q
• 作为产物：
  描述：

  5-氯-2-硝基-4-(三氟甲基)苯胺 在 氢氧化钾 、 硫酸 、 氨 、 铁粉 、 sodium nitrite 作用下， 以 1,4-二氧六环 、 甲醇 、 溶剂黄146 、 N,N-二甲基甲酰胺 、 甲苯 为溶剂， 反应 9.84h， 生成 8-Imidazol-1-yl-4-oxo-7-trifluoromethyl-4,5-dihydro-[1,2,4]triazolo[1,5-a]quinoxaline-2-carboxylic acid ethyl ester
  参考文献：
  名称：

  Synthesis and Biological Evaluation of Analogues of 7-Chloro-4,5-dihydro-4- oxo-8-(1,2,4-triazol-4-yl)-1,2,4-triazolo[1,5-a]quinoxaline-2-carboxylic Acid (TQX-173) as Novel Selective AMPA Receptor Antagonists

  摘要：

  In recent papers (Catarzi, D.; et al. J. Med. Chem. 2000, 43, 3824-3826; 2001, 44, 31573165) we reported chemical and biological studies on 4,5-dihydro-4-oxo-1,2,4-triazolo[1,5-a]-quinoxaline-2-carboxylates (TQXs) bearing different nitrogen-containing heterocycles at position-8. In particular, from these studies it emerged that both the 7-chloro-4,5-dihydro-4-oxo-8-(1,2,4-triazol-4-yl)-1,2,4-triazolo[1,5-a] quinoxaline-2-carboxylic acid TQX-173 (compound B) and its corresponding ethyl ester (compound A) were the most active and selective compounds of this series. In pursuing our investigation on the structure-activity relationships of these TQX derivatives, different electron-withdrawing groups (CF3, NO2) were introduced at position 7 on the TQX ring system, replacing the 7-chloro substituent of B and of other selected 8-heteroaryltriazoloquinoxaline-2-carboxylates previously described. All the newly synthesized compounds were biologically evaluated for their binding at the Gly/NMDA, AMPA, and KA high-affinity receptors. Gly/NMDA binding assays were performed to assess the selectivity of the reported compounds toward the AMPA receptor. Compounds endowed with micromolar binding affinity for the KA high-affinity binding site were also evaluated for their binding at the KA low-affinity receptor. Some selected compounds were also tested for their functional antagonist activity at the AMPA and NMDA receptor-ion channel complex. The results obtained in this study have pointed out that 4,5-dihydro-7-nitro-4-oxo-8-(3-carboxypyrrol-1-yl)-1,2,4-triazolo[1,5-alquinoxaline-2-carboxylic acid (9b) and its corresponding ethyl ester (9a) are the most potent and selective AMPA receptor antagonists reported to date among the TQX series.

  DOI：

  10.1021/jm030906q

文献信息

• Synthesis and Biological Evaluation of Analogues of 7-Chloro-4,5-dihydro-4- oxo-8-(1,2,4-triazol-4-yl)-1,2,4-triazolo[1,5-<i>a</i>]quinoxaline-2-carboxylic Acid (TQX-173) as Novel Selective AMPA Receptor Antagonists
  作者：Daniela Catarzi、Vittoria Colotta、Flavia Varano、Francesca Romana Calabri、Guido Filacchioni、Alessandro Galli、Chiara Costagli、Vincenzo Carlà

  DOI：10.1021/jm030906q

  日期：2004.1.1

  In recent papers (Catarzi, D.; et al. J. Med. Chem. 2000, 43, 3824-3826; 2001, 44, 31573165) we reported chemical and biological studies on 4,5-dihydro-4-oxo-1,2,4-triazolo[1,5-a]-quinoxaline-2-carboxylates (TQXs) bearing different nitrogen-containing heterocycles at position-8. In particular, from these studies it emerged that both the 7-chloro-4,5-dihydro-4-oxo-8-(1,2,4-triazol-4-yl)-1,2,4-triazolo[1,5-a] quinoxaline-2-carboxylic acid TQX-173 (compound B) and its corresponding ethyl ester (compound A) were the most active and selective compounds of this series. In pursuing our investigation on the structure-activity relationships of these TQX derivatives, different electron-withdrawing groups (CF3, NO2) were introduced at position 7 on the TQX ring system, replacing the 7-chloro substituent of B and of other selected 8-heteroaryltriazoloquinoxaline-2-carboxylates previously described. All the newly synthesized compounds were biologically evaluated for their binding at the Gly/NMDA, AMPA, and KA high-affinity receptors. Gly/NMDA binding assays were performed to assess the selectivity of the reported compounds toward the AMPA receptor. Compounds endowed with micromolar binding affinity for the KA high-affinity binding site were also evaluated for their binding at the KA low-affinity receptor. Some selected compounds were also tested for their functional antagonist activity at the AMPA and NMDA receptor-ion channel complex. The results obtained in this study have pointed out that 4,5-dihydro-7-nitro-4-oxo-8-(3-carboxypyrrol-1-yl)-1,2,4-triazolo[1,5-alquinoxaline-2-carboxylic acid (9b) and its corresponding ethyl ester (9a) are the most potent and selective AMPA receptor antagonists reported to date among the TQX series.