1-(6-amino-3,5-difluoropyridin-2-yl)-7-(3-aminoazetidin-1-yl)-8-chloro-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid

• 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-(6-amino-3,5-difluoropyridin-2-yl)-7-(3-aminoazetidin-1-yl)-8-chloro-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
• 英文别名: 7-(3-aminoazetidin-1-yl)-1-(6-amino-3,5-difluoropyridin-2-yl)-8-chloro-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid；7-(3-Aminoazetidin-1-yl)-1-(6-amino-3,5-difluoro-2-pyridyl)-8-chloro-6-fluoro-4-oxo-quinoline-3-carboxylic acid；7-(3-aminoazetidin-1-yl)-1-(6-amino-3,5-difluoropyridin-2-yl)-8-chloro-6-fluoro-4-oxoquinoline-3-carboxylic acid
• 化学式: C₁₈H₁₃ClF₃N₅O₃
• 分子量: 439.781
• InChiKey: ZHLAKLNFEZYKHL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.1
• 重原子数：
  30
• 可旋转键数：
  3
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  126
• 氢给体数：
  3
• 氢受体数：
  11

反应信息

• 作为产物：
  描述：

  德拉沙星中间体4 在 三乙胺 、 sodium hydroxide 作用下， 以 乙醇 、 水 、 乙腈 为溶剂， 反应 8.0h， 生成 1-(6-amino-3,5-difluoropyridin-2-yl)-7-(3-aminoazetidin-1-yl)-8-chloro-6-fluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
  参考文献：
  名称：

  Novel C-7 carbon substituted fourth generation fluoroquinolones targeting N. Gonorrhoeae infections

  摘要：

  Delafloxacin, a fourth-generation anionic fluoroquinolone (FQ) was approved in 2019 for community acquired bacterial pneumonia (CARP). It has broad spectrum activity and an improved class-related toxicity profile. However, it has recently failed a Phase 3 clinical trial for treatment of N. gonorrhoeae infections due to the lack of sufficient efficacy at the dose administered.Inspired by the microbiological and safety profile of delafloxacin, we have developed and profiled the first reported delafloxacin carbon analogue whereby a Nitrogen-for-Carbon swap has been successfully carried out at the C7 position. Not only have we shown that compounds with this modification maintain activity against N. gonorrhoeae (plus other gram-positive and gram-negative bacteria) but they also demonstrate a differentiated physicochemical profile.A zwitterionic derivative of delafloxacin was also profiled and demonstrated a superior microbiological profile against gram-negative strains, whilst maintaining favorable selected ADMET properties.

  DOI：

  10.1016/j.bmcl.2020.127428

文献信息

• Pyridonecarboxylic acid derivatives or their salts and antibacterial
  申请人：Wakunaga Pharmaceuticals Co., Ltd.

  公开号：US05998436A1

  公开（公告）日：1999-12-07

  A pyridonecarboxylic acid derivative represented by the following general formula (1): ##STR1## [wherein R.sup.1 represents hydrogen atom or a carboxyl protective group; R.sup.2 represents hydroxyl group, a lower alkoxy group, or a substituted or unsubstituted amino group; R.sup.3 represents hydrogen atom or a halogen atom; R.sup.4 represents hydrogen atom or a halogen atom; R.sup.5 represents a halogen atom or an optionally substituted saturated cyclic amino group; R.sup.6 represents hydrogen atom, a halogen atom, nitro group, or an optionally protected amino group; X, Y and Z may be the same or different and respectively represent nitrogen atom, --CH.dbd. or --CR.sup.7 .dbd. (wherein R.sup.7 represents a lower alkyl group, a halogen atom, or cyano group) (with the proviso that at least one of X, Y and Z represent the nitrogen atom), and W represents nitrogen atom or --CR.sup.8 .dbd. (wherein R.sup.8 represents hydrogen atom, a halogen atom, or a lower alkyl group)] or its salt, as well as an antibacterial agent containing such compound are provided.

  一种吡啶酮羧酸衍生物，由以下通式（1）表示： ##STR1## [其中R1表示氢原子或羧基保护基团；R2表示羟基、低级烷氧基或取代或未取代的氨基；R3表示氢原子或卤素原子；R4表示氢原子或卤素原子；R5表示卤素原子或可选择性取代的饱和环状氨基；R6表示氢原子、卤素原子、硝基或可选择性保护的氨基；X、Y和Z可以相同或不同，分别表示氮原子、--CH＝或--CR7＝（其中R7表示低级烷基、卤素原子或氰基）（条件是X、Y和Z中至少有一个表示氮原子），W表示氮原子或--CR8＝（其中R8表示氢原子、卤素原子或低级烷基）]或其盐，以及含有此类化合物的抗菌剂。
• Pyridonecarboxylic acid derivatives or their salts, and antibacterial
  申请人：Wakunaga Pharmaceutical Co., Ltd.

  公开号：US06133284A1

  公开（公告）日：2000-10-17

  A pyridonecarboxylic acid derivative represented by the following general formula (1): ##STR1## [wherein R.sup.1 represents hydrogen atom or a carboxyl protective group; R.sup.2 represents hydroxyl group, a lower alkoxy group, or a substituted or unsubstituted amino group; R.sup.3 represents hydrogen atom or a halogen atom; R.sup.4 represents hydrogen atom or a halogen atom; R.sup.5 represents a halogen atom or an optionally substituted saturated cyclic amino group; R.sup.6 represents hydrogen atom, a halogen atom, nitro group, or an optionally protected amino group; X, Y and Z may be the same or different and respectively represent nitrogen atom, --CH.dbd. or --CR.sup.7 .dbd. (wherein R.sup.7 represents a lower alkyl group, a halogen atom, or cyano group) (with the proviso that at least one of X, Y and Z represent the nitrogen atom), and W represents nitrogen atom or --CR.sup.8 .dbd. (wherein R.sup.8 represents hydrogen atom, a halogen atom, or a lower alkyl group)] or its salt, as well as an antibacterial agent containing such compound are provided.

  提供一种由以下通式（1）表示的吡啶酮羧酸衍生物：##STR1## [其中，R.sup.1表示氢原子或羧基保护基；R.sup.2表示羟基、低级烷氧基或取代或未取代的氨基；R.sup.3表示氢原子或卤素原子；R.sup.4表示氢原子或卤素原子；R.sup.5表示卤素原子或可选取代的饱和环氨基基团；R.sup.6表示氢原子、卤素原子、硝基基团或可选保护的氨基基团；X、Y和Z可以相同也可以不同，分别表示氮原子、--CH.dbd.或--CR.sup.7.dbd.（其中，R.sup.7表示低级烷基、卤素原子或氰基）（但至少其中一个为氮原子），W表示氮原子或--CR.sup.8.dbd.（其中，R.sup.8表示氢原子、卤素原子或低级烷基）]或其盐，以及含有此类化合物的抗菌剂。
• Intermediates for use in preparing novel pyridonecarboxylic acid derivatives or their salts
  申请人：WAKUNAGA PHARMACEUTICAL CO., LTD.

  公开号：EP0952151A2

  公开（公告）日：1999-10-27

  An intermediate useful for preparing novel pyridonecarboxylic acid derivatives or their salts, the intermediate represented by the following general formula (C) : wherein X represents a nitrogen atom, Y represents -CH= or -CR7= (wherein R7 represents a lower alkyl group or a halogen atom), Z represents -CH=, R2a represents a substituted or unsubstituted amino group substituted with a protect group and R3 represents a hydrogen atom or a halogen atom.

  一种用于制备新型吡啶羧酸衍生物或其盐类的中间体，该中间体由以下通式（C）代表： 其中 X 代表氮原子，Y 代表 -CH= 或 -CR7=（其中 R7 代表低级烷基或卤素原子），Z 代表 -CH=，R2a 代表被保护基团取代或未被取代的氨基，R3 代表氢原子或卤素原子。
• Pyridonecarboxylic acid derivatives as antibacterial agents
  申请人：WAKUNAGA PHARMACEUTICAL CO., LTD.

  公开号：EP0992501A2

  公开（公告）日：2000-04-12

  A pyridonecarboxylic acid compound of the formula or salt thereof is useful as an antibacterial agent.

  式中的吡啶羧酸化合物或其盐可用作抗菌剂。 或其盐可用作抗菌剂。
• NOVEL PYRIDONECARBOXYLIC ACID DERIVATIVES OR THEIR SALTS AND ANTIBACTERIAL AGENT COMPRISING THE SAME AS THE ACTIVE INGREDIENT
  申请人：WAKUNAGA PHARMACEUTICAL CO., LTD.

  公开号：EP0911327B1

  公开（公告）日：2001-12-05