3H-Pyrazolo[4,3-c]quinolin-3-one, 2,5-dihydro-9-hydroxy-2-phenyl- | 145209-65-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 3H-Pyrazolo[4,3-c]quinolin-3-one, 2,5-dihydro-9-hydroxy-2-phenyl-
• CAS: 145209-65-0
• 化学式: C₁₆H₁₁N₃O₂
• 分子量: 277.282
• InChiKey: UPRTYUVHSUTWMQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.52
• 重原子数：
  21.0
• 可旋转键数：
  1.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  70.91
• 氢给体数：
  2.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  溴甲苯 、 3H-Pyrazolo[4,3-c]quinolin-3-one, 2,5-dihydro-9-hydroxy-2-phenyl- 在 sodium ethanolate 作用下， 以 乙醇 为溶剂， 反应 1.0h， 以18%的产率得到5-benzyl-9-hydroxy-2-phenylpyrazolo<4,3-c>quinolin-3-one
  参考文献：
  名称：

  Computer-Aided Molecular Modeling, Synthesis, and Biological Evaluation of 8-(Benzyloxy)-2-phenylpyrazolo[4,3-c]quinoline as a Novel Benzodiazepine Receptor Agonist Ligand

  摘要：

  Using computer-aided conformational analysis, based on molecular dynamics simulation, cluster analysis, and Monte Carlo techniques, we have designed and synthesized compounds in which a benzyloxy substituent has been incorporated into a series of pyrazoloquinoline benzodiazepine receptor (BZR) ligands, Earlier studies had shown that the benzyloxy group could act as part of the agonist pharmacophoric determinant in the beta-carboline ring system. Furthermore, the agonist beta-carboline had been correlated with a binding site orientation and volume fit for an agonist 6-phenylimidazobenzodiazepine carboxylate. The present study was undertaken to determine whether the benzyloxy substituent could be used as an agonist pharmacophoric descriptor for the phenylpyrazolo[4,3-c]quinolin-3-one BZR ligands, The results of a determination of GABA shift ratios for the synthetic ligands indicate that 8-(benzyloxy)-2-phenylpyrazolo[4,3-c]quinolin-3-one can be predicted to be an agonist at the BZR.

  DOI：

  10.1021/jm00006a014
• 作为产物：
  描述：

  diethyl <(2-bromo-5-methoxyanilino)methylene>malonate 在 palladium on activated charcoal PPA 、 氢溴酸 、 氢气 、 sodium acetate 、 三氯氧磷 作用下， 以 溶剂黄146 、 xylene 为溶剂， 140.0 ℃ 、253.31 kPa 条件下， 反应 57.25h， 生成 3H-Pyrazolo[4,3-c]quinolin-3-one, 2,5-dihydro-9-hydroxy-2-phenyl-
  参考文献：
  名称：

  Computer-Aided Molecular Modeling, Synthesis, and Biological Evaluation of 8-(Benzyloxy)-2-phenylpyrazolo[4,3-c]quinoline as a Novel Benzodiazepine Receptor Agonist Ligand

  摘要：

  Using computer-aided conformational analysis, based on molecular dynamics simulation, cluster analysis, and Monte Carlo techniques, we have designed and synthesized compounds in which a benzyloxy substituent has been incorporated into a series of pyrazoloquinoline benzodiazepine receptor (BZR) ligands, Earlier studies had shown that the benzyloxy group could act as part of the agonist pharmacophoric determinant in the beta-carboline ring system. Furthermore, the agonist beta-carboline had been correlated with a binding site orientation and volume fit for an agonist 6-phenylimidazobenzodiazepine carboxylate. The present study was undertaken to determine whether the benzyloxy substituent could be used as an agonist pharmacophoric descriptor for the phenylpyrazolo[4,3-c]quinolin-3-one BZR ligands, The results of a determination of GABA shift ratios for the synthetic ligands indicate that 8-(benzyloxy)-2-phenylpyrazolo[4,3-c]quinolin-3-one can be predicted to be an agonist at the BZR.

  DOI：

  10.1021/jm00006a014

文献信息

• High affinity central benzodiazepine receptor ligands. Part 2: quantitative structure–activity relationships and comparative molecular field analysis of pyrazolo[4,3- c ]quinolin-3-ones
  作者：L. Savini、L. Chiasserini、C. Pellerano、G. Biggio、E. Maciocco、M. Serra、N. Cinone、A. Carrieri、C. Altomare、A. Carotti

  DOI：10.1016/s0968-0896(00)00262-5

  日期：2001.2

  A large series of 2-aryl(heteroaryl)-2,5-dihydropyrazolo[4,3-c]quinolin-3(3H)-ones (PQ, 106 compounds), carrying appropriate substituents at the quinoline and N-2-phenyl rings, were designed, prepared and tested as central benzodiazepine receptor ligands. Compounds with an affinity significantly higher than the parent compound CGS-8216 were obtained, the most active ligand showing a pIC(50) = 10.35. Hansch and comparative molecular field analyses gave coherent results suggesting the main structural requirements of high receptor binding affinity. The possible formation of a three-centred hydrogen bond (HB) at the HB donor site H-2, as a key interaction for high receptor binding affinity, was assessed by the calculation and comparison of the molecular electrostatic potentials of a series of selected ligands. (C) 2001 Elsevier Science Ltd. All rights reserved.