(2-nitro-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazin-6-yl)methanol | 1263188-84-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: (2-nitro-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazin-6-yl)methanol
• CAS: 1263188-84-6
• 化学式: C₇H₉N₃O₄
• 分子量: 199.166
• InChiKey: BVCKGSZYCHGJLB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.2
• 重原子数：
  14
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.57
• 拓扑面积：
  93.1
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  (2-nitro-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazin-6-yl)methanol 在 (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride 、 sodium hydride 、 sodium carbonate 作用下， 以 乙醇 、 N,N-二甲基甲酰胺 、 甲苯 、 mineral oil 为溶剂， 反应 3.0h， 生成 2-nitro-6-[({5-[4-(trifluoromethyl)phenyl]-2-pyridinyl}oxy)methyl]-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazine
  参考文献：
  名称：

  Biarylmethoxy 2-nitroimidazooxazine antituberculosis agents: Effects of proximal ring substitution and linker reversal on metabolism and efficacy

  摘要：

  Certain biaryl analogues of antitubercular drug PA-824 displayed enhanced in vivo efficacies yet retained some susceptibility towards oxidative metabolism; therefore, two new strategies were explored to address this. Ortho-substitution of the proximal aryl ring with larger electron-withdrawing substituents maintained or improved compound stability but reduced aerobic potency; however, fluoro and cyano were well tolerated. In vivo, only 2'- or 3'-fluoro mono-substitution preserved high efficacy against acute infection, although one example was twofold more effective than delamanid against chronic infection. Reversal of the 6-oxymethylene linkage also permitted high potency and improved stability towards human liver microsomes, albeit, in vivo results were inferior. These novel findings provide further insight into the preferred structural features for lead candidates in this important drug class. (C) 2015 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2015.07.084
• 作为产物：
  描述：

  2-bromo-1-(3-[(tert-butyldimethylsilyl)oxy]-2-{[(tert-butyldimethylsilyl)oxy]methyl}-propyl)-4-nitro-1H-imidazole 在 盐酸 、 sodium hydride 作用下， 以 乙醇 、 N,N-二甲基甲酰胺 、 mineral oil 为溶剂， 反应 16.0h， 生成 (2-nitro-6,7-dihydro-5H-imidazo[2,1-b][1,3]oxazin-6-yl)methanol
  参考文献：
  名称：

  NITROIMIDAZOOXAZINE AND NITROIMIDAZOOXAZOLE ANALOGUES AND THEIR USES

  摘要：

  当前的发明涉及硝基咪唑噁啉和硝基咪唑噁唑类似物，它们的制备方法，以及将这些化合物用作治疗结核分枝杆菌、用作抗结核药物、用作对克氏锥虫或唐氏利什曼原虫具有意外高效的抗原虫药剂，以及用于治疗其他微生物感染的用途。

  公开号：

  US20110028466A1

文献信息

• Nitroimidazooxazine and nitroimidazooxazole analogues and their uses
  申请人：Global Alliance for TB Drug Development

  公开号：US08293734B2

  公开（公告）日：2012-10-23

  The current invention pertains to nitroimidazooxazine and nitroimidazooxazole analogues, their methods of preparation, and uses of the compounds as treatment for Mycobacterium tuberculosis, for use as anti-tubercular drugs, for use as anti-protozoal agents with unexpectedly high potency against Trypanosoma cruzi or Leishmania donovani, and for the treatment of other microbial infections.

  本发明涉及硝基咪唑氧噁啉和硝基咪唑氧唑类似物，其制备方法以及将这些化合物用作治疗结核分枝杆菌的药物、用作抗结核药物、用作抗原虫药物，对Trypanosoma cruzi或Leishmania donovani具有意外的高效性，并用于治疗其他微生物感染。
• Development of (6<i>R</i>)-2-Nitro-6-[4-(trifluoromethoxy)phenoxy]-6,7-dihydro-5<i>H</i>-imidazo[2,1-<i>b</i>][1,3]oxazine (DNDI-8219): A New Lead for Visceral Leishmaniasis
  作者：Andrew M. Thompson、Patrick D. O’Connor、Andrew J. Marshall、Adrian Blaser、Vanessa Yardley、Louis Maes、Suman Gupta、Delphine Launay、Stephanie Braillard、Eric Chatelain、Baojie Wan、Scott G. Franzblau、Zhenkun Ma、Christopher B. Cooper、William A. Denny

  DOI：10.1021/acs.jmedchem.7b01581

  日期：2018.3.22

  Discovery of the potent antileishmanial effects of antitubercular 6-nitro-2,3-dihydroimidazo [2,1-1)] [1,3]oxazoles and 7-substituted 2-nitro-5,6-dihydroimidazo[2,1-b][1,3]oxazines stimulated the examination of further scaffolds (e.g., 2-nitro-5,6,7,8-tetrahydroimidazo[2,1-b][1,3]oxazepines), but the results for these seemed less attractive. Following the screening of a 900-compound pretomanid analogue library, several hits with more suitable potency, solubility, and microsomal stability were identified, and the superior efficacy of newly synthesized 6R enantiomers with phenylpyridine-based side chains was established through head-to-head assessments in a Leishmania donovani mouse model. Two such leads (R-84 and R-89) displayed promising activity in the more stringent Leishmania infantum hamster model but were unexpectedly found to be potent inhibitors of hERG. An extensive structure-activity relationship investigation pinpointed two compounds (R-6 and pyridine R-136) with better solubility and pharmacokinetic properties that also provided excellent oral efficacy in the same hamster model (>97% parasite clearance at 25 mg/kg, twice daily) and exhibited minimal hERG inhibition. Additional profiling earmarked R-6 as the favored backup development candidate.
• NITROIMIDAZOOXAZINE ANALOGUES AND THEIR USES
  申请人：Global Alliance For Tb Drug Development

  公开号：EP2459570B1

  公开（公告）日：2014-12-24
• US8293734B2
  申请人：——

  公开号：US8293734B2

  公开（公告）日：2012-10-23