2-((S)-2-nitro-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazin-6-ylamino)-2-(4-trifluoromethoxyphenyl)-acetamide | 1321964-05-9

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: 2-((S)-2-nitro-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazin-6-ylamino)-2-(4-trifluoromethoxyphenyl)-acetamide
• 英文别名: 2-[[(6S)-2-nitro-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazin-6-yl]amino]-2-[4-(trifluoromethoxy)phenyl]acetamide
• CAS: 1321964-05-9
• 化学式: C₁₅H₁₄F₃N₅O₅
• 分子量: 401.302
• InChiKey: NNFAKKMEVZNOAL-QHGLUPRGSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  28
• 可旋转键数：
  5
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  137
• 氢给体数：
  2
• 氢受体数：
  10

反应信息

• 作为产物：
  描述：

  2-((S)-2-nitro-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazin-6-ylamino)-2-(4-trifluoromethoxyphenyl)acetonitrile 在 盐酸 作用下， 以 乙醇 为溶剂， 反应 1.25h， 以38%的产率得到2-((S)-2-nitro-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazin-6-ylamino)-2-(4-trifluoromethoxyphenyl)-acetamide
  参考文献：
  名称：

  Structure–Activity Relationships of Antitubercular Nitroimidazoles. 3. Exploration of the Linker and Lipophilic Tail of ((S)-2-Nitro-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazin-6-yl)-(4-trifluoromethoxybenzyl)amine (6-Amino PA-824).

  摘要：

  The (S)-2-nitro-6-(4-(trifluoromethoxy)benzyloxy)-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazine named PA-824 (1) has demonstrated antitubercular activity in vitro and in animal models and is currently in clinical trials. We synthesized derivatives at three positions of the 4-(trifluoromethoxy)benzylamino tail, and these were tested for whole-cell activity against both replicating and nonreplicating Mycobacterium tuberculosis (Mtb). In addition, we determined their kinetic parameters as substrates of the deazaflavin-dependent nitroreductase (Ddn) from Mtb that reductively activates these pro-drugs. These studies yielded multiple compounds with 40 nM aerobic whole cell activity and 1.6 mu M anaerobic whole cell activity: 10-fold improvements over both characteristics from the parent molecule. Some of these compounds exhibited enhanced solubility with acceptable stability to microsomal and in vivo metabolism. Analysis of the conformational preferences of these analogues using quantum chemistry suggests a preference for a pseudoequatorial orientation of the linker and lipophilic tail.

  DOI：

  10.1021/jm1010644