2-(3-nitrophenyl)-3-phenyl-5,6-dihydro-2H-pyrazolo[3,4-d]pyridazine-4,7-dione | 1608107-88-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 2-(3-nitrophenyl)-3-phenyl-5,6-dihydro-2H-pyrazolo[3,4-d]pyridazine-4,7-dione
• 英文别名: 2-(3-Nitrophenyl)-3-phenyl-5,6-dihydropyrazolo[3,4-d]pyridazine-4,7-dione；2-(3-nitrophenyl)-3-phenyl-5,6-dihydropyrazolo[3,4-d]pyridazine-4,7-dione
• CAS: 1608107-88-5
• 化学式: C₁₇H₁₁N₅O₄
• 分子量: 349.305
• InChiKey: BTIRITAKYRMNKT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  26
• 可旋转键数：
  2
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  122
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  4-(ethoxycarbonyl)-1-(3-nitrophenyl)-5-phenyl-1H-pyrazole-3-carboxylic acid 在 肼 作用下， 以 甲苯 为溶剂， 反应 5.0h， 以63%的产率得到2-(3-nitrophenyl)-3-phenyl-5,6-dihydro-2H-pyrazolo[3,4-d]pyridazine-4,7-dione
  参考文献：
  名称：

  Synthesis, structure–activity relationships, and in vitro antibacterial and antifungal activity evaluations of novel pyrazole carboxylic and dicarboxylic acid derivatives

  摘要：

  A series of pyrazole-3-carboxylic acid and pyrazole-3,4-dicarboxylic acid derivatives were synthesized, the structures were confirmed by their NMR (H-1 and C-13) and FT-IR spectra, and elemental analyses. The antibacterial and antifungal activities of the compounds against five bacterial and five fungal pathogens were screened using modified agar well diffusion assay. Most of the molecules have inhibitory effects on both standard and clinical Candida albicans strains. However, only the molecules 8, 10, 21, and 22 demonstrate some inhibitory effects on Candida parapsilosis, Candida tropicalis, and Candida glabrata strains. The structure-antifungal activity relationships of the compounds on the C. albicans strains were investigated by electron-conformational method. The pharmacophores and antipharmacophores responsible for the inhibition and non-inhibition of the C. albicans strains were obtained by electronic and geometrical characteristics of the reactive fragments of the molecules. These fragments along with the associated parameters can be used in designing the future more potent antifungal agents. It has been shown that both the positions of electronegative atoms like F and O in the pyrazole substituents and the amount of the associated charges on such atoms are crucial in regulating the strength of antifungal activity for the C. albicans strain. (C) 2014 Elsevier Masson SAS. All rights reserved.

  DOI：

  10.1016/j.ejmech.2014.03.033