4-(pyridin-2-yl)piperazine-amidoxime | 1229624-11-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪烷类
• 英文名称: 4-(pyridin-2-yl)piperazine-amidoxime
• 英文别名: N'-hydroxy-4-pyridin-2-ylpiperazine-1-carboximidamide
• CAS: 1229624-11-6
• 化学式: C₁₀H₁₅N₅O
• 分子量: 221.262
• InChiKey: QNSHGUAZWJEDSA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.3
• 重原子数：
  16
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  78
• 氢给体数：
  2
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  3-硝基-4,5-二苄氧基苯甲酸 、 4-(pyridin-2-yl)piperazine-amidoxime 在 N,N'-羰基二咪唑 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 2.0h， 以700 mg的产率得到
  参考文献：
  名称：

  Discovery of a Long-Acting, Peripherally Selective Inhibitor of Catechol-O-methyltransferase

  摘要：

  Novel nitrocatechol-substituted heterocycles were designed and evaluated for their ability to inhibit catechol-O-methyltransferase (COMT). Replacement of the pyrazole core of the initial hit 4 with a 1,2,4-oxadiazole ring resulted in a series of compounds endowed with longer duration of COMT inhibition. Incorporation of a pyridine N-oxide residue at position 3 of the 1,2,4-oxadiazole ring led to analogue 37f, which was found to possess activity comparable to entacapone and lower toxicity in comparison to tolcapone. Lead structure 37f was systematically modified in order to improve selectivity and duration of COMT inhibition as well as to minimize toxicity. Oxadiazole 37d (2,5-dichloro-3-(5-(3,4-dihydroxy-5-nitrophenyl)-1,2,4-oxadiazol-3-yl)-4,6-dimethylpyridine 1-oxide (BIA 9-1067)) was identified as a long-acting, purely peripheral inhibitor, which is currently under clinical evaluation as an adjunct to L-Dopa therapy of Parkinson's disease.

  DOI：

  10.1021/jm1001524