2-(4-bromophenyl)-N-[(6S)-2-nitro-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazin-6-yl]acetamide | 1353754-84-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2-(4-bromophenyl)-N-[(6S)-2-nitro-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazin-6-yl]acetamide
• CAS: 1353754-84-3
• 化学式: C₁₄H₁₃BrN₄O₄
• 分子量: 381.186
• InChiKey: CXIYZIZEXKLSNM-NSHDSACASA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  23
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  102
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  2-(4-bromophenyl)-N-[(6S)-2-nitro-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazin-6-yl]acetamide 、 4-三氟甲氧基苯硼酸 在 potassium carbonate 、 (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride 作用下， 以 乙醇 、 甲苯 为溶剂， 反应 1.08h， 以73%的产率得到N-[(6S)-2-nitro-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazin-6-yl]-2-[4-[4-(trifluoromethoxy)phenyl]phenyl]acetamide
  参考文献：
  名称：

  Structure–Activity Relationships for Amide-, Carbamate-, And Urea-Linked Analogues of the Tuberculosis Drug (6S)-2-Nitro-6-{[4-(trifluoromethoxy)benzyl]oxy}-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazine (PA-824)

  摘要：

  Analogues of clinical tuberculosis drug (6S)-2-nitro-6-{[4-(trifluoromethoxy)benzyl]oxy}-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazine (PA-824), in which the OCH2 linkage was replaced with amide, carbamate, and urea functionality, were investigated as an alternative approach to address oxidative metabolism, reduce lipophilicity, and improve aqueous solubility. Several soluble monoaryl examples displayed moderately improved (similar to 2- to 4-fold) potencies against replicating Mycobacterium tuberculosis but were generally inferior inhibitors under anaerobic (nonreplicating) conditions. More lipophilic biaryl derivatives mostly displayed similar or reduced potencies to these in contrast to the parent biaryl series. The leading biaryl carbamate demonstrated exceptional metabolic stability and a 5-fold better efficacy than the parent drug in a mouse model of acute M. tuberculosis infection but was poorly soluble. Bioisosteric replacement of this biaryl moiety by arylpiperazine resulted in a soluble, orally bioavailable carbamate analogue providing identical activity in the acute model, comparable efficacy to OPC-67683 in a chronic infection model, favorable pharmacokinetic profiles across several species, and enhanced safety.

  DOI：

  10.1021/jm2012276
• 作为产物：
  描述：

  4-溴苯乙酰氯 、 (6S)-2-nitro-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazin-6-amine hydrochloride 在 N,N-二异丙基乙胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 3.0h， 以83%的产率得到2-(4-bromophenyl)-N-[(6S)-2-nitro-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazin-6-yl]acetamide
  参考文献：
  名称：

  Structure–Activity Relationships for Amide-, Carbamate-, And Urea-Linked Analogues of the Tuberculosis Drug (6S)-2-Nitro-6-{[4-(trifluoromethoxy)benzyl]oxy}-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazine (PA-824)

  摘要：

  Analogues of clinical tuberculosis drug (6S)-2-nitro-6-{[4-(trifluoromethoxy)benzyl]oxy}-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazine (PA-824), in which the OCH2 linkage was replaced with amide, carbamate, and urea functionality, were investigated as an alternative approach to address oxidative metabolism, reduce lipophilicity, and improve aqueous solubility. Several soluble monoaryl examples displayed moderately improved (similar to 2- to 4-fold) potencies against replicating Mycobacterium tuberculosis but were generally inferior inhibitors under anaerobic (nonreplicating) conditions. More lipophilic biaryl derivatives mostly displayed similar or reduced potencies to these in contrast to the parent biaryl series. The leading biaryl carbamate demonstrated exceptional metabolic stability and a 5-fold better efficacy than the parent drug in a mouse model of acute M. tuberculosis infection but was poorly soluble. Bioisosteric replacement of this biaryl moiety by arylpiperazine resulted in a soluble, orally bioavailable carbamate analogue providing identical activity in the acute model, comparable efficacy to OPC-67683 in a chronic infection model, favorable pharmacokinetic profiles across several species, and enhanced safety.

  DOI：

  10.1021/jm2012276

文献信息

• Structure–Activity Relationships for Amide-, Carbamate-, And Urea-Linked Analogues of the Tuberculosis Drug (6<i>S</i>)-2-Nitro-6-{[4-(trifluoromethoxy)benzyl]oxy}-6,7-dihydro-5<i>H</i>-imidazo[2,1-<i>b</i>][1,3]oxazine (PA-824)
  作者：Adrian Blaser、Brian D. Palmer、Hamish S. Sutherland、Iveta Kmentova、Scott G. Franzblau、Baojie Wan、Yuehong Wang、Zhenkun Ma、Andrew M. Thompson、William A. Denny

  DOI：10.1021/jm2012276

  日期：2012.1.12

  Analogues of clinical tuberculosis drug (6S)-2-nitro-6-[4-(trifluoromethoxy)benzyl]oxy}-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazine (PA-824), in which the OCH2 linkage was replaced with amide, carbamate, and urea functionality, were investigated as an alternative approach to address oxidative metabolism, reduce lipophilicity, and improve aqueous solubility. Several soluble monoaryl examples displayed moderately improved (similar to 2- to 4-fold) potencies against replicating Mycobacterium tuberculosis but were generally inferior inhibitors under anaerobic (nonreplicating) conditions. More lipophilic biaryl derivatives mostly displayed similar or reduced potencies to these in contrast to the parent biaryl series. The leading biaryl carbamate demonstrated exceptional metabolic stability and a 5-fold better efficacy than the parent drug in a mouse model of acute M. tuberculosis infection but was poorly soluble. Bioisosteric replacement of this biaryl moiety by arylpiperazine resulted in a soluble, orally bioavailable carbamate analogue providing identical activity in the acute model, comparable efficacy to OPC-67683 in a chronic infection model, favorable pharmacokinetic profiles across several species, and enhanced safety.