3-iodo-6-(trichloromethyl)pyrrolo[1,2-a]quinoxaline | 1620494-77-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氮杂萘
• 英文名称: 3-iodo-6-(trichloromethyl)pyrrolo[1,2-a]quinoxaline
• 英文别名: 7-Iodo-4-(trichloromethyl)pyrrolo[1,2-a]quinoxaline；7-iodo-4-(trichloromethyl)pyrrolo[1,2-a]quinoxaline
• CAS: 1620494-77-0
• 化学式: C₁₂H₆Cl₃IN₂
• 分子量: 411.457
• InChiKey: HQIOCUPKPOEHDT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.2
• 重原子数：
  18
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.08
• 拓扑面积：
  17.3
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  4-碘-2-硝基苯胺 在 tin(II) chloride dihdyrate 、 溶剂黄146 、 三乙胺 、 三氯氧磷 作用下， 以 1,4-二氧六环 、 吡啶 、 乙醇 为溶剂， 反应 13.0h， 生成 3-iodo-6-(trichloromethyl)pyrrolo[1,2-a]quinoxaline
  参考文献：
  名称：

  Synthesis and in vitro evaluation of 4-trichloromethylpyrrolo[1,2-a]quinoxalines as new antiplasmodial agents

  摘要：

  Thanks to a preliminary in vitro screening of several CCl3-substituted-nitrogen containing heterocycles belonging to our chemical library, the 2-trichloromethylquinoxaline scaffold appeared to be of potential interest for developing new antiplasmodial agents. Then, combining these experimental results to the antimalarial properties reported for various pyrrolo[1,2-a]quinoxaline derivatives, an original series of fifteen 7-substituted-4-trichoromethylpyrrolo[1,2-a]quinoxalines was synthesized in a 4 to 5 reaction steps pathway. All molecules were evaluated in vitro toward both their antiplasmodial activity on the K1 multi-resistant Plasmodium falciparum strain and their cytotoxicity on the HepG2 human cell line. Thus, 3 hit molecules were identified, displaying IC50 values in the micromolar range and low cytotoxicity values, reaching good selectivity indexes, in comparison with the reference drugs chloroquine and doxycycline. Structure-activity relationship studies showed that the pyrrolo[1,2-a]quinoxaline scaffold can support selective antiplasmodial activity when substituted at position 4 by a CCl3 group. However, substitution at position 7 of the same scaffold is neither beneficial for cytotoxicity nor favourable for the solubility in the biological media.

  DOI：

  10.1016/j.ejmech.2014.06.014

文献信息

• Synthesis and in vitro evaluation of 4-trichloromethylpyrrolo[1,2-a]quinoxalines as new antiplasmodial agents
  作者：Nicolas Primas、Peggy Suzanne、Pierre Verhaeghe、Sébastien Hutter、Charline Kieffer、Michèle Laget、Anita Cohen、Julie Broggi、Jean-Charles Lancelot、Aurélien Lesnard、Patrick Dallemagne、Pascal Rathelot、Sylvain Rault、Patrice Vanelle、Nadine Azas

  DOI：10.1016/j.ejmech.2014.06.014

  日期：2014.8

  Thanks to a preliminary in vitro screening of several CCl3-substituted-nitrogen containing heterocycles belonging to our chemical library, the 2-trichloromethylquinoxaline scaffold appeared to be of potential interest for developing new antiplasmodial agents. Then, combining these experimental results to the antimalarial properties reported for various pyrrolo[1,2-a]quinoxaline derivatives, an original series of fifteen 7-substituted-4-trichoromethylpyrrolo[1,2-a]quinoxalines was synthesized in a 4 to 5 reaction steps pathway. All molecules were evaluated in vitro toward both their antiplasmodial activity on the K1 multi-resistant Plasmodium falciparum strain and their cytotoxicity on the HepG2 human cell line. Thus, 3 hit molecules were identified, displaying IC50 values in the micromolar range and low cytotoxicity values, reaching good selectivity indexes, in comparison with the reference drugs chloroquine and doxycycline. Structure-activity relationship studies showed that the pyrrolo[1,2-a]quinoxaline scaffold can support selective antiplasmodial activity when substituted at position 4 by a CCl3 group. However, substitution at position 7 of the same scaffold is neither beneficial for cytotoxicity nor favourable for the solubility in the biological media.