ethyl 1-(2,4-difluorophenyl)-6,7-difluoro-1,4-dihydro-4-oxoquinoline-3-carboxylate | 108138-17-6

• 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: ethyl 1-(2,4-difluorophenyl)-6,7-difluoro-1,4-dihydro-4-oxoquinoline-3-carboxylate
• 英文别名: 6,7-difluoro-1-(2,4-difluorophenyl)-1,4-dihydro-4-oxo-quinoline-3-carboxylic acid ethyl ester；ethyl 1-(2,4-difluorophenyl)-6,7-difluoro-4-oxoquinoline-3-carboxylate
• CAS: 108138-17-6
• 化学式: C₁₈H₁₁F₄NO₃
• 分子量: 365.284
• InChiKey: UCHJWSNOVHXTKU-UHFFFAOYSA-N

物化性质

• 熔点：
  213-214 °C(Solv: ethanol (64-17-5))
• 沸点：
  461.7±45.0 °C(Predicted)
• 密度：
  1.459±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  26
• 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：
  46.6
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  ethyl 1-(2,4-difluorophenyl)-6,7-difluoro-1,4-dihydro-4-oxoquinoline-3-carboxylate 在 盐酸 、 sodium hydroxide 、 三乙胺 作用下， 以 吡啶 为溶剂， 反应 69.5h， 生成 (2'S,4'S)-7-(4'-amino-2'-methylpyrrolidinyl)-1-(2,4-difluorophenyl)-1,4-dihydro-6-fluoro-4-oxoquinoline-3-carboxylic acid hydrochloride
  参考文献：
  名称：

  （4S）-7-（4-氨基-2-取代-吡咯烷基-1-基）喹诺酮-3-羧酸的设计，合成及性能

  摘要：

  喹诺酮羧酸构成一类非常有效且具有口服活性的广谱抗菌剂。这些化合物已显示出抑制DNA回旋酶的作用，而DNA回旋酶是细菌DNA复制中的关键酶。7-（3-氨基吡咯烷基）喹诺酮A-60969（1）是此类中特别有效的成员，目前正在临床评估中。我们已经研究了一系列对映体均质的（4S）-7-（4-氨基-2-取代的吡咯烷基）喹诺酮类药物，以利用吡咯烷部分的2位改善此类药物的溶解度和药代动力学性质化合物，同时仍保持有效的抗菌活性。我们已经发现，在吡咯烷环的2-位上的绝对立体化学对于维持这种活性至关重要。在本文中，我们报告了该系列化合物的不对称合成以及体外和体内结构-活性关系的完整详细信息，以及与结构修饰相关的理化特性，例如水溶性和logP。我们还讨论了这些化合物中的几种在小鼠中的药代动力学特性，以及在本研究中在狗中具有最佳药物总体特性的59的药代动力学。

  DOI：

  10.1021/jm00403a020
• 作为产物：
  描述：

  2,4,5-三氟苯甲酰氯 在 正丁基锂 、 biquinoline 、 乙酸酐 、 sodium hydride 作用下， 以 四氢呋喃 为溶剂， 反应 16.25h， 生成 ethyl 1-(2,4-difluorophenyl)-6,7-difluoro-1,4-dihydro-4-oxoquinoline-3-carboxylate
  参考文献：
  名称：

  Synthesis, antibacterial activities, and pharmacological properties of enantiomers of temafloxacin hydrochloride

  摘要：

  Temafloxacin hydrochloride [(+/-)-7-(3-methylpiperazin-1-yl)-6-fluro-1-(2,4-difluorophenyl)-1,4-dihydro-4-oxoquinoline-3-carboxylic acid hydrochloride] is a potent member of the 4-pyridone-3-carboxylic acid class of antibacterial agents and is currently under clinical development as a broad-spectrum antimicrobial agent. It is a racemate having a chiral center at the C3 of the 7-piperazin-1-yl group. The two enantiomers were synthesized and tested for their antibacterial activities. Although no difference in in vitro antibacterial activities was observed, a minor difference in in vivo antibacterial activities was observed. However, they both exhibited similar pharmacological profiles.

  DOI：

  10.1021/jm00105a025

文献信息

• Azabicyclo quinolone and naphthyridinone carboxylic acids
  申请人：Pfizer Inc

  公开号：US05164402A1

  公开（公告）日：1992-11-17

  Quinolone carboxylic acids 7-substituted by azabicyclo groups have antibacterial activity.

  喹诺酮羧酸7位被氮杂双环基团取代的化合物具有抗菌活性。
• [EN] PROCESSES FOR PREPARING QUINOLONECARBOXYLATE DERIVATIVES<br/>[FR] PROCEDE DE PREPARATION DE DERIVES DE QUINOLONECARBOXYLATE
  申请人：YUHAN CORP

  公开号：WO2004056781A1

  公开（公告）日：2004-07-08

  The present invention provides a process for preparing quinolonecarboxylate derivatives under a mild condition in high yield, so as to be favorably applied to a large-scale mass production thereof.

  本发明提供了一种在温和条件下以高收率制备喹诺酮羧酸酯衍生物的方法，从而有利于其大规模量产的应用。
• Quinoline, naphthyridine and pyridobenzoxazine derivatives
  申请人：Abbott Laboratories

  公开号：US05137892A1

  公开（公告）日：1992-08-11

  Novel antibacterial compounds are disclosed having the formula ##STR1## as well as pharmaceutically acceptable salts, esters, amide and prodrugs thereof, wherein R.sup.1 is selected from the group consisting of (a) lower alkyl, (b) halo(lower alkyl), (c) lower alkyl(alkynyl), (d) lower cycloalkyl, (e) lower alkylamino, (f) nitrogen-containing aromatic heterocycle, (g) bicyclic alkyl and (h) phenyl; R.sup.2 is selected from the group consisting of hydrogen, lower alkyl, a pharmaceutically acceptable cation, and a prodrug ester group; R.sup.3 and R.sup.4 are independently selected from the group consisting of hydrogen, halogen, amino, and lower alkyl; R.sup.5 is either a nitrogen-containing heterocycle or a nitrogen-containing spiro-bicyclic-heterocycle; and A is N or C--R.sup.6, wherein R.sup.6 is selected from the group consisting of hydrogen, halogen, lower alkyl, and lower alkoxy, or R.sup.1 and R.sup.6 taken together with the atoms to which they are attached form a 6-membered ring which may contain an oxygen or sulfur atom and which may be substituted with lower alkyl; as well as pharmaceutical compositions comprising such novel compounds and the thereapeutic use thereof.

  披露了具有公式##STR1##的新型抗菌化合物，以及药学上可接受的盐、酯、酰胺和前药，其中R.sup.1选自以下组：(a)低级烷基，(b)卤代(低级烷基)，(c)低级烷基(炔基)，(d)低级环烷基，(e)低级烷基氨基，(f)含氮的芳香杂环，(g)双环烷基和(h)苯基；R.sup.2选自氢、低级烷基、药学上可接受的阳离子和前药酯基组；R.sup.3和R.sup.4独立选自氢、卤素、氨基和低级烷基；R.sup.5是含氮杂环或含氮螺环双杂环；A是N或C--R.sup.6，其中R.sup.6选自氢、卤素、低级烷基和低级烷氧基，或者R.sup.1和R.sup.6与它们所连接的原子一起形成一个可能含有氧或硫原子的6元环，该6元环可能被低级烷基取代；以及包含这些新型化合物的药物组合物及其治疗用途。
• Syntheses and antibacterial activity of novel 6-fluoro-7-(<i>gem</i>-disubstituted piperazin-1-yl)-quinolines
  作者：Daniel T. W. Chu、Akiyo K. Claiborne、Jacob J. Clement、Jacob J. Plattner

  DOI：10.1139/v92-171

  日期：1992.5.1

  A series of quinoline and naphthyridine antibacterial agents possessing an acyclic or cyclic gem-disubstituted piperazine substituent at the C-7 position have been prepared and evaluated in vitro and in vivo for antibacterial activity against a variety of Gram-positive and Gram-negative organisms. They are, however, not as active as quinolones or naphthyridines with a monosubstituted piperazine substituent at C-7. The chemical synthesis of these derivatives is also described.

  已经制备并评估了一系列含有在C-7位置带有非环状或环状的双取代哌嗪基团的喹啉和萘啶类抗菌剂，用于对多种革兰氏阳性菌和革兰氏阴性菌的体外和体内抗菌活性的研究。然而，它们并不像在C-7位置带有单取代哌嗪基团的喹诺酮或萘啶那样有效。这些衍生物的化学合成也被描述了。

• Processes for preparing quinolone carboxylate derivatives
  申请人：Lee Au Tai

  公开号：US20060058528A1

  公开（公告）日：2006-03-16

  Provided is a process for preparing quinolonecarboxylate derivatives under a mild condition in high yield, so as to be favorably applied to a large-scale mass production thereof.

  提供了一种在温和条件下高产得喹诺酮羧酸衍生物的制备过程，以便有利地应用于大规模生产。