2,4,6-trichloro-8-methylquinazoline | 1080622-95-2

• 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: 2,4,6-trichloro-8-methylquinazoline
• 英文别名: 2,4,6-Trichloro-8-methyl-quinazoline
• CAS: 1080622-95-2
• 化学式: C₉H₅Cl₃N₂
• 分子量: 247.511
• InChiKey: VVNSYIXNKNHZRL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.5
• 重原子数：
  14
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  25.8
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-呋喃甲胺 、 2,4,6-trichloro-8-methylquinazoline 在 N,N-二异丙基乙胺 作用下， 以 乙酸乙酯 为溶剂， 生成
  参考文献：
  名称：

  Discovery of Quinazolines as Histamine H₄ Receptor Inverse Agonists Using a Scaffold Hopping Approach

  摘要：

  From a series of small fragments that was designed to probe the histamine H-4 receptor (H4R), we previously described quinoxaline-containing fragments that were grown into high affinity H4R ligands in a process that was guided by pharmacophore modeling. With a scaffold hopping exercise and using the same in silico models, we now report the identification and optimization of a series of quinazoline-containing H4R compounds. This approach led to the discovery of 6-chloi-o-N-(furan-3-yl)methyl)2-(4-methylpiperzin-1-yl)quinazolin-4-amine (VUF10499, 54) and 6-chloro-2-(4-methylpiperazin-1-yl)-N-(thiophen-2-ylmethyl)quinazolin-4-amine (VUF10497, 55) as potent human H4R inverse agonists (pK(i) = 8.12 and 7.57, respectively). Interestingly, both compounds also possess considerable affinity for the human histamine Hi receptor (H1R) and therefore represent a novel class of dual action H1R/H4R ligands, a profile that potentially leads to added therapeutic benefit. Compounds from this novel series of quirlazolines are antagonists at the rat H4R and were found to possess anti-inflammatory properties in vivo in the rat.

  DOI：

  10.1021/jm800876b
• 作为产物：
  描述：

  5-chloro-3-(hydroxyamino)-7-methylindol-2-one 在 三光气 、 Tris(4-methoxyphenyl)phosphine oxide 作用下， 以 氯苯 为溶剂， 反应 6.0h， 以82%的产率得到2,4,6-trichloro-8-methylquinazoline
  参考文献：
  名称：

  由双（三氯甲基）碳酸酯和三芳基氧化膦介导的靛红-3-肟一锅级联环扩大为 2,4-二氯喹唑啉

  摘要：

  摘要 开发了一种直接从靛红-3-肟与双（三氯甲基）碳酸酯和三芳基膦氧化物直接高效、方便地一锅级联合成 2,4-二氯喹唑啉的方法，以中等至优异的收率获得取代的喹唑啉。与一系列官能团的兼容性证明了这种转化的效率。因此，该方法代表了合成取代的 2,4-二氯喹唑啉的一种方便实用的策略。图形概要

  DOI：

  10.1080/10426507.2020.1782910

文献信息

• Discovery of Quinazolines as Histamine H₄ Receptor Inverse Agonists Using a Scaffold Hopping Approach
  作者：Rogier A. Smits、Iwan J. P. de Esch、Obbe P. Zuiderveld、Joachim Broeker、Kamonchanok Sansuk、Elena Guaita、Gabriella Coruzzi、Maristella Adami、Eric Haaksma、Rob Leurs

  DOI：10.1021/jm800876b

  日期：2008.12.25

  From a series of small fragments that was designed to probe the histamine H-4 receptor (H4R), we previously described quinoxaline-containing fragments that were grown into high affinity H4R ligands in a process that was guided by pharmacophore modeling. With a scaffold hopping exercise and using the same in silico models, we now report the identification and optimization of a series of quinazoline-containing H4R compounds. This approach led to the discovery of 6-chloi-o-N-(furan-3-yl)methyl)2-(4-methylpiperzin-1-yl)quinazolin-4-amine (VUF10499, 54) and 6-chloro-2-(4-methylpiperazin-1-yl)-N-(thiophen-2-ylmethyl)quinazolin-4-amine (VUF10497, 55) as potent human H4R inverse agonists (pK(i) = 8.12 and 7.57, respectively). Interestingly, both compounds also possess considerable affinity for the human histamine Hi receptor (H1R) and therefore represent a novel class of dual action H1R/H4R ligands, a profile that potentially leads to added therapeutic benefit. Compounds from this novel series of quirlazolines are antagonists at the rat H4R and were found to possess anti-inflammatory properties in vivo in the rat.
• One-pot cascade ring enlargement of isatin-3-oximes to 2,4-dichloroquinazolines mediated by bis(trichloromethyl)carbonate and triarylphosphine oxide
  作者：Jinjing Qin、Zhenhua Li、Shengzhe Ma、Lixian Ye、Guoqiang Jin、Weike Su

  DOI：10.1080/10426507.2020.1782910

  日期：2020.12.1

  Abstract An efficient and convenient one-pot cascade synthesis of 2,4-dichloroquinazolines directly from isatin-3-oximes with the addition of bis(trichloromethyl)carbonate and triarylphosphine oxide was developed, leading to substituted quinazolines in moderate to excellent yields. The efficiency of this transformation was demonstrated by compatibility with a range of functional groups. Thus, the method

  摘要 开发了一种直接从靛红-3-肟与双（三氯甲基）碳酸酯和三芳基膦氧化物直接高效、方便地一锅级联合成 2,4-二氯喹唑啉的方法，以中等至优异的收率获得取代的喹唑啉。与一系列官能团的兼容性证明了这种转化的效率。因此，该方法代表了合成取代的 2,4-二氯喹唑啉的一种方便实用的策略。图形概要