4-(4-甲基-2-硝基-苯基)-哌嗪-1-甲醛 | 1027190-12-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪烷类
• 中文名称: 4-(4-甲基-2-硝基-苯基)-哌嗪-1-甲醛
• 英文名称: 4-(4-Methyl-2-nitrophenyl)piperazine-1-carbaldehyde
• CAS: 1027190-12-0
• 化学式: C₁₂H₁₅N₃O₃
• 分子量: 249.269
• InChiKey: BHRLRLGGDGRFCZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  18
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  69.4
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  4-(4-甲基-2-硝基-苯基)-哌嗪-1-甲醛 在 palladium on activated charcoal 氢气 、 溶剂黄146 作用下， 以 乙醇 为溶剂， 25.0~105.0 ℃ 、101.33 kPa 条件下， 反应 22.0h， 生成 4-(4-甲基-2-吡咯-1-基-苯基)-哌嗪-1-甲醛
  参考文献：
  名称：

  N-Arylpiperazinyl-N‘-propylamino Derivatives of Heteroaryl Amides as Functional Uroselective α₁-Adrenoceptor Antagonists

  摘要：

  Novel arylpiperazines were identified as alpha(1)-adrenoceptor(BR) subtype-selective antagonists by functional in vitro screening. 3-[4-(ortho-Substituted phenyl)piperazin-1-yl]propylamines were derivatized with N,N-dimethyl anthranilamides, nicotinamides,;as well as carboxamides of quinoline, I,8-naphthyridine, pyrazolo[3,4-b]pyridine, isoxazolo[3,4-b]pyridine, imidazo[4,5-b]pyridine, and pyrazolo[1,5-a]pyrimidines. Strips of rabbit bladder neck were employed as a predictive assay for antagonism in the human lower tract. Rings of rat aorta;a were used as a ''negative screen'' for the test antagonists. Binding to alpha(1)-ARs was relatively sensitive to size and electronic features of the arylpiperazine portion of the antagonists and permissive to these features on the heteroaryl carboxamide side. These structure-affinity findings were exploited to produce nicotinamides (e.g, 13ii and 25x) and pyrazolo[3,4-b]pyridines (e.g. 37f and 37y) ligands with nanomolar affinity at the alpha(1)-AR subtype prevalent in the human lower urinary tract (pA(2) values: 8.8, 10.7, 9.3, and 9.9, respectively) and displaying 2-3 orders of magnitude selectivity over the alpha(1D)-AR.

  DOI：

  10.1021/jm970166j
• 作为产物：
  描述：

  1-甲醛哌嗪 、 3-硝基-4-氯甲苯 以 N,N-二甲基甲酰胺 为溶剂， 反应 16.0h， 以26%的产率得到4-(4-甲基-2-硝基-苯基)-哌嗪-1-甲醛
  参考文献：
  名称：

  N-Arylpiperazinyl-N‘-propylamino Derivatives of Heteroaryl Amides as Functional Uroselective α₁-Adrenoceptor Antagonists

  摘要：

  Novel arylpiperazines were identified as alpha(1)-adrenoceptor(BR) subtype-selective antagonists by functional in vitro screening. 3-[4-(ortho-Substituted phenyl)piperazin-1-yl]propylamines were derivatized with N,N-dimethyl anthranilamides, nicotinamides,;as well as carboxamides of quinoline, I,8-naphthyridine, pyrazolo[3,4-b]pyridine, isoxazolo[3,4-b]pyridine, imidazo[4,5-b]pyridine, and pyrazolo[1,5-a]pyrimidines. Strips of rabbit bladder neck were employed as a predictive assay for antagonism in the human lower tract. Rings of rat aorta;a were used as a ''negative screen'' for the test antagonists. Binding to alpha(1)-ARs was relatively sensitive to size and electronic features of the arylpiperazine portion of the antagonists and permissive to these features on the heteroaryl carboxamide side. These structure-affinity findings were exploited to produce nicotinamides (e.g, 13ii and 25x) and pyrazolo[3,4-b]pyridines (e.g. 37f and 37y) ligands with nanomolar affinity at the alpha(1)-AR subtype prevalent in the human lower urinary tract (pA(2) values: 8.8, 10.7, 9.3, and 9.9, respectively) and displaying 2-3 orders of magnitude selectivity over the alpha(1D)-AR.

  DOI：

  10.1021/jm970166j