Ethyl-imidazo[1,2-a]pyrazin-8-yl-amine | 117718-90-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 咪唑并吡嗪类
• 英文名称: Ethyl-imidazo[1,2-a]pyrazin-8-yl-amine
• 英文别名: Imidazo[1,2-a]pyrazin-8-amine, N-ethyl-；N-ethylimidazo[1,2-a]pyrazin-8-amine
• CAS: 117718-90-8
• 化学式: C₈H₁₀N₄
• 分子量: 162.194
• InChiKey: XXUGLAFDUQERSL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  12
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  42.2
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  6,8-二溴咪唑并[1,2-a]吡嗪 在 palladium on activated charcoal 氢气 作用下， 以 水 为溶剂， 反应 12.0h， 生成 Ethyl-imidazo[1,2-a]pyrazin-8-yl-amine
  参考文献：
  名称：

  Synthesis and antibronchospastic activity of 8-alkoxy- and 8-(alkylamino)imidazo[1,2-a]pyrazines

  摘要：

  Theophylline still occupies a dominant place in asthma therapy. Unfortunatly its adverse central nervous system (CNS) stimulant effects can dramatically limit its use, and adjustments in the dosage are often needed. We have synthesized a new series of imidazo[1,2-a]pyrazine derivatives which are much more potent bronchodilators than theophylline in vivo and do not exhibit the CNS stimulatory profile. In vitro studies on isolated rat uterus and guinea pig trachea confirm the high potentialities of these derivatives. 6-Bromo-8-(methylamino)imidazo[1,2-a]pyrazine-3-carbonitrile (23) is identified as the most potent compound of the series. As in the case of theophylline, phosphodiesterase inhibition appears unlikely to be the unique mechanism of action of this series of heterocycles.

  DOI：

  10.1021/jm00096a008

文献信息

• Synthesis and antibronchospastic activity of 8-alkoxy- and 8-(alkylamino)imidazo[1,2-a]pyrazines
  作者：Pierre A. Bonnet、Alain Michel、Florence Laurent、Claire Sablayrolles、Eliane Rechencq、Jean C. Mani、Maurice Boucard、Jean P. Chapat

  DOI：10.1021/jm00096a008

  日期：1992.9

  Theophylline still occupies a dominant place in asthma therapy. Unfortunatly its adverse central nervous system (CNS) stimulant effects can dramatically limit its use, and adjustments in the dosage are often needed. We have synthesized a new series of imidazo[1,2-a]pyrazine derivatives which are much more potent bronchodilators than theophylline in vivo and do not exhibit the CNS stimulatory profile. In vitro studies on isolated rat uterus and guinea pig trachea confirm the high potentialities of these derivatives. 6-Bromo-8-(methylamino)imidazo[1,2-a]pyrazine-3-carbonitrile (23) is identified as the most potent compound of the series. As in the case of theophylline, phosphodiesterase inhibition appears unlikely to be the unique mechanism of action of this series of heterocycles.