2-氯-8-甲基-4H-吡啶并[1,2-A]嘧啶-4-酮 | 17326-20-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶并嘧啶类
• 中文名称: 2-氯-8-甲基-4H-吡啶并[1,2-A]嘧啶-4-酮
• 英文名称: 2-Chlor-8-methyl-4-oxo-4H-pyrido<1,2-a>pyrimidin
• 英文别名: 2-chloro-8-methyl-pyrido[1,2-a]pyrimidin-4-one；2-chloro-8-methyl-4H-pyrido[1,2-a]pyrimidin-4-one；2-chloro-8-methylpyrido[1,2-a]pyrimidin-4-one
• CAS: 17326-20-4
• 化学式: C₉H₇ClN₂O
• mdl: MFCD00857628
• 分子量: 194.62
• InChiKey: YNCQZXXQUBDAPR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.9
• 重原子数：
  13
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.111
• 拓扑面积：
  32.7
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  哌嗪 、 2-氯-8-甲基-4H-吡啶并[1,2-A]嘧啶-4-酮 以 乙醇 为溶剂， 反应 1.0h， 以76%的产率得到8-Methyl-2-piperazin-1-yl-pyrido[1,2-a]pyrimidin-4-one
  参考文献：
  名称：

  Synthesis, antiplatelet activity and comparative molecular field analysis of substituted 2-amino-4 H -pyrido[1,2- a ]pyrimidin-4-ones, their congeners and isosteric analogues

  摘要：

  2-(1-Piperazinyl)-4H-pyrido[1,2-a]pyrimidin-4-one (5a) is a recently described in vitro inhibitor of human platelet aggregation which specifically inhibits the activity of high affinity cAMP phosphodiesterase. A number of substitution derivatives, isosteres, and analogues of 5a were now synthesized and tested in vitro for their inhibitory activity on human platelet aggregation induced in platelet-rich plasma by ADP, collagen, or the Ca2+ ionophore A23187. Among the most effective compounds, the 6-methyl, 8-methyl and 6,8-dimethyl derivatives of 5a resulted nearly as active as the lead when platelet aggregation was induced by ADP or A23187, but less active when collagen was the inducer. On the basis of present results and those previously obtained by us in this and 2-aminochromone structural fields, we have developed a statistically significant 3-D QSAR model, using comparative molecular field analysis (CoMFA), describing the variation of the antiplatelet activity in terms of molecular steric and electrostatic potential changes. (C) 2000 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0968-0896(00)00010-9

文献信息

• Synthesis, antiplatelet activity and comparative molecular field analysis of substituted 2-amino-4 H -pyrido[1,2- a ]pyrimidin-4-ones, their congeners and isosteric analogues
  作者：Giorgio Roma、Nunzia Cinone、Mario Di Braccio、Giancarlo Grossi、Giuliana Leoncini、Maria Grazia Signorello、Angelo Carotti

  DOI：10.1016/s0968-0896(00)00010-9

  日期：2000.4

  2-(1-Piperazinyl)-4H-pyrido[1,2-a]pyrimidin-4-one (5a) is a recently described in vitro inhibitor of human platelet aggregation which specifically inhibits the activity of high affinity cAMP phosphodiesterase. A number of substitution derivatives, isosteres, and analogues of 5a were now synthesized and tested in vitro for their inhibitory activity on human platelet aggregation induced in platelet-rich plasma by ADP, collagen, or the Ca2+ ionophore A23187. Among the most effective compounds, the 6-methyl, 8-methyl and 6,8-dimethyl derivatives of 5a resulted nearly as active as the lead when platelet aggregation was induced by ADP or A23187, but less active when collagen was the inducer. On the basis of present results and those previously obtained by us in this and 2-aminochromone structural fields, we have developed a statistically significant 3-D QSAR model, using comparative molecular field analysis (CoMFA), describing the variation of the antiplatelet activity in terms of molecular steric and electrostatic potential changes. (C) 2000 Elsevier Science Ltd. All rights reserved.