N',N'-diethyl-N-(7-methoxyquinolin-4-yl)ethane-1,2-diamine | 219776-25-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 喹啉及其衍生物
• 英文名称: N',N'-diethyl-N-(7-methoxyquinolin-4-yl)ethane-1,2-diamine
• CAS: 219776-25-7
• 化学式: C₁₆H₂₃N₃O
• 分子量: 273.378
• InChiKey: GLZUWXVIBLTTAS-UHFFFAOYSA-N

物化性质

• 沸点：
  428.990±40.00 °C(Press: 760.00 Torr)(predicted)
• 密度：
  1.093±0.06 g/cm3(Temp: 25 °C; Press: 760 Torr)(predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  20
• 可旋转键数：
  7
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.44
• 拓扑面积：
  37.4
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  N',N'-diethyl-N-(7-methoxyquinolin-4-yl)ethane-1,2-diamine 在 三溴化硼 作用下， 以 二氯甲烷 为溶剂， 反应 41.0h， 以61.6%的产率得到4-[2-(Diethylamino) ethylamino] quinolin-7-ol
  参考文献：
  名称：

  Structure−Activity Relationships in 4-Aminoquinoline Antiplasmodials. The Role of the Group at the 7-Position

  摘要：

  Antiplasmodial activities versus the chloroquine sensitive D10 strain of Plasmodium falciparum of a series of N-1,N-1-diethyl-N-2-(4-quinolinyl)-1,2-ethanediamines with 11 different substituents at the 7-position on the quinoline ring have been investigated in vitro. Electron-withdrawing groups at the 7-position have been shown to lower the pK(a) of both the quinoline ring nitrogen atom and the tertiary amino nitrogen in the alkyl side chain. The quinoline nitrogen pK(a) ranges from 6.28 in the nitro derivative to 8.36 in the amino derivative, while the tertiary amino nitrogen has a pKa ranging between 7.65 in the trifluoromethyl derivative and 10.02 in the amino derivative. Calculation suggests that the resulting pH trapping of these compounds in the parasite food vacuole ranges between about 7% of that observed in chloroquine for the NO2 derivative and 97% in the amino derivative. A direct proportionality between antiplasmodial activity normalized for pH trapping and beta-hematin inhibitory activity was observed. Activity could not be correlated with any other observed physical parameter. The beta-hematin inhibitory activity of these derivatives appears to correlate with both the hematin-quinoline association constant and the electron-withdrawing capacity of the group at the 7-position (Hammett constant). For the compounds under investigation, the hematin association constant is in turn influenced by the lipophilicity of the group at the 7-position.

  DOI：

  10.1021/jm020858u
• 作为产物：
  描述：

  4-羟基-7-甲氧基喹啉 在 三氯氧磷 作用下， 反应 10.17h， 生成 N',N'-diethyl-N-(7-methoxyquinolin-4-yl)ethane-1,2-diamine
  参考文献：
  名称：

  Structure−Activity Relationships for Antiplasmodial Activity among 7-Substituted 4-Aminoquinolines

  摘要：

  Aminoquinolines (AQs) with diaminoalkane side chains (-HNRNEt2) shorter or longer than the isopentyl side chain [-HNCHMe(CH2)(3)NEt2] of chloroquine are active against both chloroquine-susceptible and -resistant Plasmodium falciparum. (De, D.; et al. Am. J. Trop. Med. Hyg. 1996, 55, 579-583). In the studies reported here, we examined structure-activity relationships (SARs) among AQs with different N,N-diethyldiaminoalkane side chains and different substituents at the 7-position occupied by Cl in chloroquine. 7-Iodo- and 7-bromo-AQs with diaminoalkane side chains [-HN(CH2)(2)NEt2, -HN(CH2)(3)NEt2, or -HNCHMeCH2NEt2] were as active as the corresponding 7-chloro-AQs against both chloroquine-susceptible and -resistant P. falciparum (IC(50)s of 3-12 nM). In contrast, with one exception, 7-fluoro-AQs and 7-trifluoromethyl-AQs were less active against chloroquine-susceptible P. falciparum (IC(50)s of 15-50 nM) and substantially less active against chloroquine-resistant P. falciparum (IC(50)s of 18-500 nM). Furthermore, most 7-OMe-AQs were inactive against both chloroquine-susceptible (IC(50)s of 17-150 nM) and -resistant P. falciparum (IC(50)s of 90-3000 nM).

  DOI：

  10.1021/jm980146x

文献信息

• Structure−Activity Relationships for Antiplasmodial Activity among 7-Substituted 4-Aminoquinolines
  作者：Dibyendu De、Frances M. Krogstad、Larry D. Byers、Donald J. Krogstad

  DOI：10.1021/jm980146x

  日期：1998.12.1

  Aminoquinolines (AQs) with diaminoalkane side chains (-HNRNEt2) shorter or longer than the isopentyl side chain [-HNCHMe(CH2)(3)NEt2] of chloroquine are active against both chloroquine-susceptible and -resistant Plasmodium falciparum. (De, D.; et al. Am. J. Trop. Med. Hyg. 1996, 55, 579-583). In the studies reported here, we examined structure-activity relationships (SARs) among AQs with different N,N-diethyldiaminoalkane side chains and different substituents at the 7-position occupied by Cl in chloroquine. 7-Iodo- and 7-bromo-AQs with diaminoalkane side chains [-HN(CH2)(2)NEt2, -HN(CH2)(3)NEt2, or -HNCHMeCH2NEt2] were as active as the corresponding 7-chloro-AQs against both chloroquine-susceptible and -resistant P. falciparum (IC(50)s of 3-12 nM). In contrast, with one exception, 7-fluoro-AQs and 7-trifluoromethyl-AQs were less active against chloroquine-susceptible P. falciparum (IC(50)s of 15-50 nM) and substantially less active against chloroquine-resistant P. falciparum (IC(50)s of 18-500 nM). Furthermore, most 7-OMe-AQs were inactive against both chloroquine-susceptible (IC(50)s of 17-150 nM) and -resistant P. falciparum (IC(50)s of 90-3000 nM).
• Structure−Activity Relationships in 4-Aminoquinoline Antiplasmodials. The Role of the Group at the 7-Position
  作者：Catherine H. Kaschula、Timothy J. Egan、Roger Hunter、Nicoletta Basilico、Silvia Parapini、Donatella Taramelli、Erica Pasini、Diego Monti

  DOI：10.1021/jm020858u

  日期：2002.8.1

  Antiplasmodial activities versus the chloroquine sensitive D10 strain of Plasmodium falciparum of a series of N-1,N-1-diethyl-N-2-(4-quinolinyl)-1,2-ethanediamines with 11 different substituents at the 7-position on the quinoline ring have been investigated in vitro. Electron-withdrawing groups at the 7-position have been shown to lower the pK(a) of both the quinoline ring nitrogen atom and the tertiary amino nitrogen in the alkyl side chain. The quinoline nitrogen pK(a) ranges from 6.28 in the nitro derivative to 8.36 in the amino derivative, while the tertiary amino nitrogen has a pKa ranging between 7.65 in the trifluoromethyl derivative and 10.02 in the amino derivative. Calculation suggests that the resulting pH trapping of these compounds in the parasite food vacuole ranges between about 7% of that observed in chloroquine for the NO2 derivative and 97% in the amino derivative. A direct proportionality between antiplasmodial activity normalized for pH trapping and beta-hematin inhibitory activity was observed. Activity could not be correlated with any other observed physical parameter. The beta-hematin inhibitory activity of these derivatives appears to correlate with both the hematin-quinoline association constant and the electron-withdrawing capacity of the group at the 7-position (Hammett constant). For the compounds under investigation, the hematin association constant is in turn influenced by the lipophilicity of the group at the 7-position.