外消旋-N-去甲基二甲茚定 | 151562-10-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 茚和异茚
• 中文名称: 外消旋-N-去甲基二甲茚定
• 英文名称: methyl{2-[3-(1-pyridin-2-ylethyl)-1H-inden-2-yl]ethyl}amine
• 英文别名: N-demethyldimethindene；N-Methyl-2-(3-(1-pyridin-2-ylethyl)-1H-inden-2-yl)ethanamine；N-methyl-2-[3-(1-pyridin-2-ylethyl)-1H-inden-2-yl]ethanamine
• CAS: 151562-10-6
• 化学式: C₁₉H₂₂N₂
• 分子量: 278.397
• InChiKey: DJCOUIHMDYBQRL-UHFFFAOYSA-N

物化性质

• 沸点：
  421.7±45.0 °C(Predicted)
• 密度：
  1.072±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  21
• 可旋转键数：
  5
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.32
• 拓扑面积：
  24.9
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1-溴-2-氟乙烷 、 外消旋-N-去甲基二甲茚定 在 potassium carbonate 作用下， 以 丙酮 为溶剂， 反应 4.0h， 以29%的产率得到N-(2-fluoroethyl)-N-methyl-2-[3-(1-pyridin-2-ylethyl)-1H-inden-2-yl]ethanamine
  参考文献：
  名称：

  Structure−Activity Relationships of Dimethindene Derivatives as New M₂-Selective Muscarinic Receptor Antagonists

  摘要：

  A series of 2,3-disubstituted indenes, which are analogues of the widely used histamine H, receptor antagonist dimethindene, have been synthesized and studied as muscarinic and histamine receptor antagonists. The affinities of these compounds for the five human muscarinic receptor subtypes (M-1-M-5) and for human histamine H, receptors were determined in radioligand binding studies using membranes from transfected Chinese hamster ovary (CHO) cells and [H-3]N-methylscopolamine ([H-3]NMS). The results demonstrate that the diisopropyl analogue 19 has a similar high affinity as (S)-dimethindene at M-2 receptors ((S)-dimethindene: pK(i) = 7.52; (-)-19: pK(i) = 7.37) with an improved selectivity pattern ((S)-dimethindene: M-2/M-1 = 6-fold, M-2/M-3 = 5-fold, M-2/M-4 = 10-fold, M-2/M-5 = 25-fold; (-)-19: M-2/M-1 = 36-fold, M-2/M-3 = 96-fold, M-2/M-4 = 42-fold, M-2/M-5 = 275-fold). In addition, compound (-)-19 showed 35-fold lower affinity at histamine H-1 receptors (pK(i) = 5.61) than (S)-dimethindene (pK(i) = 7.16). Another interesting compound is the fluoroethyl derivative 20 (pK(i)/M-2 = 7.49), which also exhibits a higher M-2 selectivity (M-2/M-1 = 19-fold; M-2/M-3 = 22-fold; M-2/M-4 = 13-fold; M-2/ M-5 = 62-fold) than (S)-dimethindene. Unfortunately, compound 20 also shows a high affinity for histamine H-1 receptors (pK(i) = 8.14). The compound with the highest affinity for M-2 receptors (pK(i) = 7.91), the dimethylaminomethylene analogue 31, displayed only a small preference for M-2 receptors. In conclusion, compound (-)-19 might be useful to test the hypothesis that blockade of muscarinic M-2 receptors in the brain is a viable mechanism by which to produce improved cognition. This second-generation dimethindene analogue might also be the starting point for the development Of M-2-selective muscarinic antagonists useful for quantifying M-2 receptors in the central nervous system with positron emission tomography imaging.

  DOI：

  10.1021/jm020895l
• 作为产物：
  描述：

  2-[2-(benzylmethylamino)ethyl]indan-1-one 在 10percent Pd/C 正丁基锂 、 甲酸 、 氢气 作用下， 以 乙醚 、 乙醇 为溶剂， 反应 15.0h， 生成 外消旋-N-去甲基二甲茚定
  参考文献：
  名称：

  Structure−Activity Relationships of Dimethindene Derivatives as New M₂-Selective Muscarinic Receptor Antagonists

  摘要：

  A series of 2,3-disubstituted indenes, which are analogues of the widely used histamine H, receptor antagonist dimethindene, have been synthesized and studied as muscarinic and histamine receptor antagonists. The affinities of these compounds for the five human muscarinic receptor subtypes (M-1-M-5) and for human histamine H, receptors were determined in radioligand binding studies using membranes from transfected Chinese hamster ovary (CHO) cells and [H-3]N-methylscopolamine ([H-3]NMS). The results demonstrate that the diisopropyl analogue 19 has a similar high affinity as (S)-dimethindene at M-2 receptors ((S)-dimethindene: pK(i) = 7.52; (-)-19: pK(i) = 7.37) with an improved selectivity pattern ((S)-dimethindene: M-2/M-1 = 6-fold, M-2/M-3 = 5-fold, M-2/M-4 = 10-fold, M-2/M-5 = 25-fold; (-)-19: M-2/M-1 = 36-fold, M-2/M-3 = 96-fold, M-2/M-4 = 42-fold, M-2/M-5 = 275-fold). In addition, compound (-)-19 showed 35-fold lower affinity at histamine H-1 receptors (pK(i) = 5.61) than (S)-dimethindene (pK(i) = 7.16). Another interesting compound is the fluoroethyl derivative 20 (pK(i)/M-2 = 7.49), which also exhibits a higher M-2 selectivity (M-2/M-1 = 19-fold; M-2/M-3 = 22-fold; M-2/M-4 = 13-fold; M-2/ M-5 = 62-fold) than (S)-dimethindene. Unfortunately, compound 20 also shows a high affinity for histamine H-1 receptors (pK(i) = 8.14). The compound with the highest affinity for M-2 receptors (pK(i) = 7.91), the dimethylaminomethylene analogue 31, displayed only a small preference for M-2 receptors. In conclusion, compound (-)-19 might be useful to test the hypothesis that blockade of muscarinic M-2 receptors in the brain is a viable mechanism by which to produce improved cognition. This second-generation dimethindene analogue might also be the starting point for the development Of M-2-selective muscarinic antagonists useful for quantifying M-2 receptors in the central nervous system with positron emission tomography imaging.

  DOI：

  10.1021/jm020895l

文献信息

• Arylalkylaminderivate, Verfahren zu ihrer Herstellung und diese Verbindungen enthaltende Arzneimittel
  申请人：Zyma SA

  公开号：EP0526395A1

  公开（公告）日：1993-02-03

  Es werden Arylalkylaminderivate der allgemeinen Formel beschrieben, die aufgrund ihrer antagonistischen Wirkung an Histamin-H₁ - und H₂-Rezeptoren zur Prophylaxe und Therapie von Krankheitszuständen, an denen Histamin beteiligt ist, eingesetzt werden können. Sie werden in an sich bekannter Weise hergestellt.

  通式如下的芳烷基胺衍生物 该衍生物对组胺 H₁和 H₂ 受体具有拮抗作用，可用于预防和治疗与组胺有关的疾病。它们是以已知的方式生产的。