1-ethyl-6-fluoro-1,4-dihydro-7-(methylamino)-4-oxo-3-quinolinecarboxylic acid | 99726-77-9

• 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: 1-ethyl-6-fluoro-1,4-dihydro-7-(methylamino)-4-oxo-3-quinolinecarboxylic acid
• 英文别名: 1-Ethyl-6-fluoro-7-(methylamino)-4-oxoquinoline-3-carboxylic acid
• CAS: 99726-77-9
• 化学式: C₁₃H₁₃FN₂O₃
• 分子量: 264.256
• InChiKey: KOBNEYUIPNHHII-UHFFFAOYSA-N

物化性质

• 沸点：
  459.7±45.0 °C(Predicted)
• 密度：
  1.401±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  19
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.23
• 拓扑面积：
  69.6
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  3,7,11,15-四甲基十六碳-2,6,10,14-四烯-1-醇 、 甲胺 在 吡啶 作用下， 反应 3.5h， 以38%的产率得到1-ethyl-6-fluoro-1,4-dihydro-7-(methylamino)-4-oxo-3-quinolinecarboxylic acid
  参考文献：
  名称：

  一些7-取代的1-乙基-6-氟-1,4-二氢-4-氧代喹啉-3-羧酸的合成和抗菌活性：醚，仲胺和硫化物作为c-7取代基

  摘要：

  由1-乙基-6,7-二氟-1,4-二氢-4-氧代喹啉制备一系列7-取代的1-乙基-6-氟-1,4-二氢-4-氧代喹啉-3-羧酸-3-羧酸8。报告的那些衍生物含有通过O，NH或S连接到喹诺酮C-7位置的无环和杂环取代基。据报道，这些衍生物中的一些对4革兰氏阳性和4革兰氏阴性生物的体外抗菌数据。

  DOI：

  10.1002/jhet.5570260444

文献信息

• New structure-activity relationships of the quinolone antibacterials using the target enzyme. The development and application of a DNA gyrase assay
  作者：John M. Domagala、Lori Doyle Hanna、Carl L. Heifetz、Marland P. Hutt、Thomas F. Mich、Joseph P. Sanchez、Marjorie Solomon

  DOI：10.1021/jm00153a015

  日期：1986.3

  A series of 60 newly synthesized and known quinolone antibacterials, including quinoline- and 1,8-naphthyridine-3-carboxylic acids, pyrido[2,3-d]pyrimidine-6-carboxylic acids, and some monocyclic 4-pyridone-3-carboxylic acids, were tested and compared in a newly established, easy to perform, DNA gyrase assay. The results were correlated with minimum inhibitory concentrations (MICs) against a variety of organisms. Among the known quinolones were 14 clinically significant drugs (oxolinic acid, norfloxacin, ciprofloxacin, enoxacin, etc.) which were used as standards and compared side-by-side. The study focused on the changes in DNA gyrase inhibition brought about by certain features of the molecules, namely, the C6-fluorine or the nature of the C7 substituent. The intrinsic gyrase inhibition of the fused parent rings, quinoline vs. naphthyridine vs. pyrido[2,3-d]pyrimidine, was also explored. In all cases, loss of enzyme inhibition produced poor MICs, but some compounds with good DNA gyrase inhibition did not correspondingly inhibit bacterial growth. Possible explanations for this phenomena and the benefits of a DNA gyrase-MIC strategy for developing future structure-activity relationships are discussed.
• Synthesis and antibacterial activity of some 7-substituted 1-ethyl-6-fluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acids: Ethers, secondary amines and sulfides as c-7 substituents
  作者：Carl B. Ziegler、William V. Curran、Nydia A. Kuck、Sonja M. Harris、Yang-I. Lin

  DOI：10.1002/jhet.5570260444

  日期：1989.7

  4-dihydro-4-oxoquinoline-3-carboxylic acid 8. Those derivatives reported contain acyclic and heterocyclic substituents linked to the quinolone C-7 position via O, NH or S. The in vitro antibacterial data of some of these derivatives against 4 Gram positive and 4 Gram negative organisms are reported.

  由1-乙基-6,7-二氟-1,4-二氢-4-氧代喹啉制备一系列7-取代的1-乙基-6-氟-1,4-二氢-4-氧代喹啉-3-羧酸-3-羧酸8。报告的那些衍生物含有通过O，NH或S连接到喹诺酮C-7位置的无环和杂环取代基。据报道，这些衍生物中的一些对4革兰氏阳性和4革兰氏阴性生物的体外抗菌数据。