1-ethyl-7-ethylsulfonyl-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylate | 79286-90-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氮杂萘
• 英文名称: 1-ethyl-7-ethylsulfonyl-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylate
• 英文别名: ethyl 1-ethyl-7-ethylsulfonyl-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylate；ethyl 1-ethyl-7-ethylsulfonyl-6-fluoro-4-oxo-1,8-naphthyridine-3-carboxylate
• CAS: 79286-90-1
• 化学式: C₁₅H₁₇FN₂O₅S
• 分子量: 356.375
• InChiKey: NDESOPVYUOKSCO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  24
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  102
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  1-ethyl-7-ethylsulfonyl-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylate 在 盐酸 作用下， 以 乙腈 为溶剂， 反应 2.0h， 生成 enoxacin hydrochloride
  参考文献：
  名称：

  通过balz-schiemann反应合成氟化吡啶。新型抗菌性吡啶酮羧酸依诺沙星的替代途径†

  摘要：

  描述了通过Balz-Schiemann反应对2，6-二取代的3-氨基吡啶5和12的氟化。2,6-二氯-3- pyridinediazonium四氟硼酸盐（6）和2-取代的6-乙酰氨基-3- pyridinediazonium四氟硼酸盐13用或不用溶剂加热，得到相应的氟化吡啶7和14分别，以良好产率。通过已知方法将2-取代的6-乙酰氨基-3-氟吡啶（14）转化为一系列的7-取代的1-乙基-6-氟-1,4-二氢-4-氧代-1,8-萘啶- 3-羧酸21包括新的潜在抗菌剂依诺沙星[1-乙基-6-氟-1,4-二氢-4-氧代-7-（1-哌嗪基）-1,8-萘啶-3-羧酸[（2）] 。

  DOI：

  10.1002/jhet.5570210309
• 作为产物：
  描述：

  ethyl 7-(ethylthio)-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylate 在 potassium carbonate 作用下， 以 氯仿 为溶剂， 反应 5.5h， 生成 1-ethyl-7-ethylsulfonyl-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylate
  参考文献：
  名称：

  通过balz-schiemann反应合成氟化吡啶。新型抗菌性吡啶酮羧酸依诺沙星的替代途径†

  摘要：

  描述了通过Balz-Schiemann反应对2，6-二取代的3-氨基吡啶5和12的氟化。2,6-二氯-3- pyridinediazonium四氟硼酸盐（6）和2-取代的6-乙酰氨基-3- pyridinediazonium四氟硼酸盐13用或不用溶剂加热，得到相应的氟化吡啶7和14分别，以良好产率。通过已知方法将2-取代的6-乙酰氨基-3-氟吡啶（14）转化为一系列的7-取代的1-乙基-6-氟-1,4-二氢-4-氧代-1,8-萘啶- 3-羧酸21包括新的潜在抗菌剂依诺沙星[1-乙基-6-氟-1,4-二氢-4-氧代-7-（1-哌嗪基）-1,8-萘啶-3-羧酸[（2）] 。

  DOI：

  10.1002/jhet.5570210309

文献信息

• An intramolecular cyclization of 7-substituted 6-fluoro- 1,8-naphthyridine and -quinoline derivatives
  作者：Yoshiro Nishimura、Akira Minamida、Jun-Ichi Matsumoto

  DOI：10.1002/jhet.5570250224

  日期：1988.3

  A synthesis of 1,4-oxazine and pyrazine ring systems by an intramolecular cyclization of 7-substituted 1-ethyl-6-fluoro-1,4-dihydro-4-oxo-1,8-naphthyridine and -quinoline derivatives having a nitrogen or oxygen nucleophilic site in the C-7 appendage was studied. The in vitro antibacterial activities of compounds prepared by this method were tested.

  通过分子内环合7-取代的1-乙基-6-氟-1,4-二氢-4-氧代-1,8-萘啶和具有氮原子的喹啉衍生物合成1,4-恶嗪和吡嗪环系统研究了C-7附肢中的氧亲核位点。在体外用该方法制备的化合物的抗菌活性进行了测试。
• Naphthyridine derivatives
  申请人：Dainippon Pharmaceutical Co., Ltd.

  公开号：US04341784A1

  公开（公告）日：1982-07-27

  The present invention provides a 1,8-naphthyridine compound of the formula ##STR1## wherein R is hydrogen, methyl, ethyl or propyl, and a nontoxic pharmaceutically acceptable salt thereof, and a process for preparing a 1,8-naphthyridine compound of the above formula which comprises (A) reacting a compound of the formula ##STR2## wherein Y is halogen, lower alkoxy, lower alkylthio, lower alkylsulfinyl, lower alkylsulfonyl, lower alkylsulfonyloxy or arylsulfonyloxy, and R.sub.1 is hydrogen or lower alkyl, with a compound of the formula ##STR3## wherein R.sub.2 is hydrogen or a protective group for the amino group, and R is as defined above, and when a reaction product in which R.sub.1 is lower alkyl and/or R.sub.2 is the amino protective group is obtained, treating it with an acid or base, and/or reductively cleaving it, (B) decomposing a compound of the formula ##STR4## wherein A .crclbar. is a fluorine-containing anion, and R.sub.1 and R.sub.2 are as defined above, and when a reaction product in which R.sub.1 is lower alkyl and/or R.sub.2 is the amino protective group is obtained, treating it with an acid or base, and/or reductively cleaving it, (C) treating a compound of the formula ##STR5## wherein R'.sub.1 is hydrogen or lower alkyl, R'.sub.2 is hydrogen or a protective group for the amino group, provided that R'.sub.1 and R'.sub.2 are not hydrogen atoms at the same time, and R is as defined above, with an acid or base, and/or reductively cleaving it, and optionally converting the resulting compound to a nontoxic pharmaceutically acceptable salt thereof. The 1,8-naphthyridine compound is useful as an antibacterial agent.

  本发明提供了一种1,8-萘啶化合物，其化学式为##STR1##其中R为氢、甲基、乙基或丙基，以及其非毒性药用可接受的盐，并且提供了一种制备上述化合物的1,8-萘啶化合物的方法，包括(A)将化学式为##STR2##其中Y为卤素、较低烷氧基、较低烷基硫基、较低烷基磺酰基、较低烷基磺酰氧基或芳基磺酰氧基的化合物，R.sub.1为氢或较低烷基，与化学式为##STR3##其中R.sub.2为氢或氨基的保护基，R如上所定义，进行反应，当得到R.sub.1为较低烷基和/或R.sub.2为氨基保护基的反应产物时，用酸或碱处理，和/或还原性裂解它，(B)分解化学式为##STR4##其中A .crclbar.为含氟阴离子，R.sub.1和R.sub.2如上所定义，当得到R.sub.1为较低烷基和/或R.sub.2为氨基保护基的反应产物时，用酸或碱处理，和/或还原性裂解它，(C)用酸或碱处理化学式为##STR5##其中R'.sub.1为氢或较低烷基，R'.sub.2为氢或氨基的保护基，前提是R'.sub.1和R'.sub.2不能同时为氢原子，R如上所定义，并可选择将得到的化合物转化为其非毒性药用可接受的盐。1,8-萘啶化合物可用作抗菌剂。
• Naphthyridine derivatives, processes for their preparation and pharmaceutical compositions containing them
  申请人：Société anonyme dite: LABORATOIRE ROGER BELLON

  公开号：EP0027752A1

  公开（公告）日：1981-04-29

  The present invention provides a 1,8-naphthyridine compound of the formula wherein R is hydrogen, methyl, ethyl or propyl, and a nontoxic pharmaceutically acceptable salt thereof, -an antibacterial agent comprising said 1,8-naphtyridine compound -and a process for prearing a 1,8-naphtyridine compound of the above formula which comprises (A) reacting a compound oftheformula: with a compound of the formula or (B) decomposing a compound of the formula or (C) treating a compound of the formula with an acid or base, and/or reducrively cleaving it.

  本发明提供了一种式中 R 为氢、甲基、乙基或丙基的 1，8-萘啶化合物及其无毒的药学上可接受的盐，一种包含上述 1，8-萘啶化合物的抗菌剂，以及一种预制上述式中 1，8-萘啶化合物的工艺，该工艺包括（A）使式中化合物：与式中化合物反应，或（B）分解式中化合物，或（C）用酸或碱处理式中化合物，和/或还原裂解式中化合物。
• NISHIMURA, YOSHIRO;MINAMIDA, AKIRA;MATSUMOTO, JUN-ICHI, J. HETEROCYCL. CHEM., 25,(1988) N, C. 479-485
  作者：NISHIMURA, YOSHIRO、MINAMIDA, AKIRA、MATSUMOTO, JUN-ICHI

  DOI：——

  日期：——
• MATSUMOTO, JUN-ICHI;MIYAMOTO, TERUYUKI;MINAMIDA, AKIRA;NISHIMURA, YOSHIRO+, J. HETEROCYCL. CHEM., 1984, 21, N 3, 673-679
  作者：MATSUMOTO, JUN-ICHI、MIYAMOTO, TERUYUKI、MINAMIDA, AKIRA、NISHIMURA, YOSHIRO+

  DOI：——

  日期：——