9,10-difluoro-2,3-dihydro-3-methyl-8-nitro-7-oxo-7H-pyrido<1,2,3-de><1,4>benzoxazine-6-carboxylic acid | 127625-16-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 喹啉及其衍生物
• 英文名称: 9,10-difluoro-2,3-dihydro-3-methyl-8-nitro-7-oxo-7H-pyrido<1,2,3-de><1,4>benzoxazine-6-carboxylic acid
• 英文别名: 8-nitro-9,10-difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido<1,2,3-de><1,4>benzoxazine-6-carboxylic acid；6,7-difluoro-2-methyl-8-nitro-10-oxo-4-oxa-1-azatricyclo[7.3.1.05,13]trideca-5,7,9(13),11-tetraene-11-carboxylic acid
• CAS: 127625-16-5
• 化学式: C₁₃H₈F₂N₂O₆
• 分子量: 326.213
• InChiKey: VTGFIOFPWABMDT-UHFFFAOYSA-N

物化性质

• 熔点：
  275 °C
• 沸点：
  572.2±50.0 °C(Predicted)
• 密度：
  1.76±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.84
• 重原子数：
  23.0
• 可旋转键数：
  2.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.23
• 拓扑面积：
  111.67
• 氢给体数：
  1.0
• 氢受体数：
  6.0

反应信息

• 作为反应物：
  描述：

  9,10-difluoro-2,3-dihydro-3-methyl-8-nitro-7-oxo-7H-pyrido<1,2,3-de><1,4>benzoxazine-6-carboxylic acid 在 palladium on activated charcoal 盐酸 、 甲酸 、 氢气 、 碳酸氢铵 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 50.0~90.0 ℃ 、101.33 kPa 条件下， 反应 11.0h， 生成 7-Fluoro-4-methyl-1-oxo-4,5-dihydro-1H,10H-6-oxa-3a,8,10-triaza-cyclopenta[a]phenalene-2-carboxylic acid
  参考文献：
  名称：

  Pyridonecarboxylic Acids as Antibacterial Agents Part XVII. 5-Alkoxyimidazoquinolones as Potential Antibacterial Agents. Synthesis and Structure-Activity Relationships.

  摘要：

  4-取代的6-环丙基-6,9-二氢-5-甲氧基-9-氧代-1H-咪唑并[4,5-f]喹啉-8-羧酸（6）和8-取代的1,5,6,11-四氢-5-甲基-1-氧代-咪唑并[4,5-g]吡啶并[1,2,3-de][1,4]苯并噁嗪-2-羧酸（7）被制备为潜在的抗菌喹诺酮衍生物。-6的C-4和-7的C-8的附属物分别选自1-哌嗪基、4-甲基哌嗪基、3-氨基吡咯烷基和3-氨基甲基吡咯烷基。5-甲氧基咪唑喹诺酮6在体外抗菌活性方面优于相应的氧氟沙星类类似物7。6对金黄色葡萄球菌的活性与5-氟类似物3相当，但对大肠杆菌和铜绿假单胞菌的活性则比5-氟类似物3低2至16倍。

  DOI：

  10.1248/cpb.44.987
• 作为产物：
  描述：

  氟嗪羧酸 在 硫酸 、 potassium nitrate 作用下， 反应 18.0h， 以91%的产率得到9,10-difluoro-2,3-dihydro-3-methyl-8-nitro-7-oxo-7H-pyrido<1,2,3-de><1,4>benzoxazine-6-carboxylic acid
  参考文献：
  名称：

  Synthesis and biological activity of 5-amino- and 5-hydroxyquinolones, and the overwhelming influence of the remote N1-substituent in determining the structure-activity relationship

  摘要：

  A series of 5-amino- and 5-hydroxyquinolone antibacterials substituted at C7 with a select group of common piperazinyl and 3-aminopyrrolidinyl side chains was prepared. These 5-substituted derivatives were compared to the analogous 5-hydrogen compounds for antiinfective activity by using DNA gyrase inhibition, minimum inhibitory concentrations against a variety of bacteria, and in vivo efficacy in the mouse infection model. The influence on the structure-activity relationships of varied substituents at C8 (H, F, Cl) and Ni (ethyl, cyclopropyl, difluorophenyl) was also studied. The results showed that several of the structure-activity conclusions regarding side-chain bulk at C7, the effect of halogen at C8, and the effect of the C5-amino group were greatly influenced by the choice of the N1-substituent. Several outstanding broad spectrum quinolones were identified in this work. In particular, the spectrum and potency of the 7-piperazinyl quinolones could be greatly enhanced by the judicious choice of C5-, C8-, and N1-substitutents.

  DOI：

  10.1021/jm00107a039

文献信息

• DOMAGALA, JOHN M.;BRIDGES, ALEX J.;CULBERTSON, TOWNLEY P.;GAMBINO, LAURA;+, J. MED. CHEM., 34,(1991) N, C. 1142-1154
  作者：DOMAGALA, JOHN M.、BRIDGES, ALEX J.、CULBERTSON, TOWNLEY P.、GAMBINO, LAURA、+

  DOI：——

  日期：——