6,7-difluoro-1-(2-fluoro-4-nitrophenyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ethyl ester | 353794-07-7

• 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: 6,7-difluoro-1-(2-fluoro-4-nitrophenyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ethyl ester
• 英文别名: ethyl 6,7-difluoro-1-(2-fluoro-4-nitrophenyl)-1,4-dihydro-4-oxoquinoline-3-carboxylate；Ethyl 6,7-difluoro-1-(2-fluoro-4-nitrophenyl)-4-oxoquinoline-3-carboxylate
• CAS: 353794-07-7
• 化学式: C₁₈H₁₁F₃N₂O₅
• 分子量: 392.291
• InChiKey: GUIPYDVIZFFMRP-UHFFFAOYSA-N

物化性质

• 沸点：
  540.3±50.0 °C(Predicted)
• 密度：
  1.521±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.8
• 重原子数：
  28
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  92.4
• 氢给体数：
  0
• 氢受体数：
  9

反应信息

• 作为反应物：
  描述：

  6,7-difluoro-1-(2-fluoro-4-nitrophenyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ethyl ester 在 palladium on activated charcoal 盐酸 、 氢气 、 碳酸氢钠 、 溶剂黄146 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 、 乙腈 为溶剂， 反应 42.0h， 生成 1-(4-amino-2-fluorophenyl)-6-fluoro-7-{4-[2-(4-methoxy-phenyl)-2-oxoethyl]-1-piperazinyl}-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
  参考文献：
  名称：

  Synthesis and Antibacterial Evaluation of Certain Quinolone Derivatives

  摘要：

  A number of 7-substituted quinolone derivatives were synthesized and evaluated for antibacterial and cytotoxic activities. Preliminary results indicated that most compounds tested in this study demonstrated better activity against methicillin-resistant Staphylococcus aureus than norfloxacin. Among them, 1-(4-amino-2-fluorophenyl)-6-fluoro-1,4-dihydro-7-{4-[2-(4-methoxyphenyl)-2-hydroxyiminoethyl]-1-piperazinyl}-4-oxo-3-quinolinecarboxylic acid (11d) and its ketone precursor 10d exhibited significant activities against Klebsiella pneumoniae, methicillin-resistant S. aureus, erythromycin- and ampicillin-resistant Streptococcus pneumoniae, and vancomycin-resistant Enterococcus faecalis. Due to strong cytotoxicities of lid (a mean log GI(50) of -5.40), compound 10d, with good antibacterial activities and low cytotoxicities (a mean log GI(50) of -4.67), is a more potential drug candidate.

  DOI：

  10.1021/jm0100335
• 作为产物：
  描述：

  3,4-二氟硝基苯 、 乙基6,7-二氟-4-氧代-1,4-二氢-3-喹啉羧酸酯 在 potassium carbonate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 12.0h， 以67%的产率得到6,7-difluoro-1-(2-fluoro-4-nitrophenyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ethyl ester
  参考文献：
  名称：

  Synthesis and Antibacterial Evaluation of Certain Quinolone Derivatives

  摘要：

  A number of 7-substituted quinolone derivatives were synthesized and evaluated for antibacterial and cytotoxic activities. Preliminary results indicated that most compounds tested in this study demonstrated better activity against methicillin-resistant Staphylococcus aureus than norfloxacin. Among them, 1-(4-amino-2-fluorophenyl)-6-fluoro-1,4-dihydro-7-{4-[2-(4-methoxyphenyl)-2-hydroxyiminoethyl]-1-piperazinyl}-4-oxo-3-quinolinecarboxylic acid (11d) and its ketone precursor 10d exhibited significant activities against Klebsiella pneumoniae, methicillin-resistant S. aureus, erythromycin- and ampicillin-resistant Streptococcus pneumoniae, and vancomycin-resistant Enterococcus faecalis. Due to strong cytotoxicities of lid (a mean log GI(50) of -5.40), compound 10d, with good antibacterial activities and low cytotoxicities (a mean log GI(50) of -4.67), is a more potential drug candidate.

  DOI：

  10.1021/jm0100335

文献信息

• Synthesis, and Antimycobacterial and Cytotoxic Evaluation of Certain Fluoroquinolone Derivatives
  作者：Jia-Yuh Sheu、Yeh-Long Chen、Cherng-Chyi Tzeng、Shu-Lin Hsu、Kuo-Chang Fang、Tai-Chi Wang

  DOI：10.1002/hlca.200390201

  日期：2003.7

  Certain 1-ethyl- and 1-aryl-6-fluoro-1,4-dihydroquinol-4-one derivatives were synthesized and evaluated for antimycobacterial and cytotoxic activities. Preliminary results indicated that, for 1-aryl-6-fluoroquinolones, both 7-(piperazin-1-yl)- and 7-(4-methylpiperazin-1-yl) derivatives, 9b and 11a, are able to completely inhibit the growth of M. tuberculosis at a concentration of 6.25 μg/ml, while

  合成了某些1-乙基和1-芳基-6-氟-1,4-二氢喹啉-4-酮衍生物，并评估了其抗分枝杆菌和细胞毒性的活性。初步结果表明，对于1-芳基-6-氟喹诺酮类化合物，7-（哌嗪-1-基）-和7-（4-甲基哌嗪-1-基）衍生物9b和11a均能够完全抑制生长。的结核分枝杆菌在6.25微克/ ml的浓度，而7- [4-（2-氧代-2-苯乙基）哌嗪-1-基]衍生物13所仅表现出31％的生长抑制在相同的浓度。对于1-乙基-6-氟喹诺酮类化合物，7- [4-（2-氧代丙基）哌嗪-1-基]-和7- [4-（2-氧代-2-苯基乙基）哌嗪-1-基]衍生物，2a和2b分别显示出完全的抑制作用，而它们的2-亚氨基乙基和取代的苯基对应物3a和2c的活性较低。另外，6,8-二氟衍生物比其6-氟衍生物（2b vs. 2d）是更有利的抑制剂。这些结果值得特别关注，因为2a，2b，9b和11a在100μM的浓度下无细胞毒性。此外