ethyl 9-fluoro-2-methyl-10-(1-piperazinyl)-7-oxo-2,3-dihydro-7H-pyrido<1,2,3-de><1,4>benzothiazine-6-carboxylate | 116176-58-0

• 分子结构分类: 有机化合物 - 有机杂环化合物
• 英文名称: ethyl 9-fluoro-2-methyl-10-(1-piperazinyl)-7-oxo-2,3-dihydro-7H-pyrido<1,2,3-de><1,4>benzothiazine-6-carboxylate
• CAS: 116176-58-0
• 化学式: C₁₉H₂₂FN₃O₃S
• 分子量: 391.466
• InChiKey: AJFFMUZEXPZWIH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.22
• 重原子数：
  27.0
• 可旋转键数：
  3.0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.47
• 拓扑面积：
  63.57
• 氢给体数：
  1.0
• 氢受体数：
  7.0

反应信息

• 作为反应物：
  描述：

  ethyl 9-fluoro-2-methyl-10-(1-piperazinyl)-7-oxo-2,3-dihydro-7H-pyrido<1,2,3-de><1,4>benzothiazine-6-carboxylate 在 sodium hydroxide 、 三乙胺 作用下， 以 乙醇 、 N,N-二甲基甲酰胺 为溶剂， 反应 1.67h， 生成 9-fluoro-2-methyl-10-<4-(2,4-difluorobenzyl)-1-piperazinyl>-7-oxo-2,3-dihydro-7H-pyrido<1,2,3-d,e><1,4>benzothiazine-6-carboxylic acid
  参考文献：
  名称：

  Quinolinecarboxylic acids. 3. Synthesis and antibacterial evaluation of 2-substituted 7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de][1,4]benzothiazine-6-carboxylic acids related to rufloxacin

  摘要：

  A series of 2-substituted-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de][1,4]benzothiazine-6-carboxylic acids has been prepared and evaluated for in vitro antibacterial activity. These derivatives were less active than corresponding desmethylated analogues. Among these derivatives, the most active compound 22a was selected for preliminary pharmacokinetics in rats. The pharmacokinetic data indicated that 22a was rapidly absorbed and induced lasting plasma and urinary levels. In comparison with rufloxacin, it was excreted in low quantity in urine; a significant amount of desmethylated piperazinyl urinary metabolite was observed.

  DOI：

  10.1021/jm00074a028
• 作为产物：
  描述：

  ethyl 9-fluoro-2-methyl-10-(1-piperazinyl)-7-oxo-2,3-dihydro-7H-pyrido<1,2,3-de><1,4>benzothiazine-6-carboxylate 1-oxide 在 三溴化磷 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 3.0h， 以76%的产率得到ethyl 9-fluoro-2-methyl-10-(1-piperazinyl)-7-oxo-2,3-dihydro-7H-pyrido<1,2,3-de><1,4>benzothiazine-6-carboxylate
  参考文献：
  名称：

  Quinolinecarboxylic acids. 3. Synthesis and antibacterial evaluation of 2-substituted 7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de][1,4]benzothiazine-6-carboxylic acids related to rufloxacin

  摘要：

  A series of 2-substituted-7-oxo-2,3-dihydro-7H-pyrido[1,2,3-de][1,4]benzothiazine-6-carboxylic acids has been prepared and evaluated for in vitro antibacterial activity. These derivatives were less active than corresponding desmethylated analogues. Among these derivatives, the most active compound 22a was selected for preliminary pharmacokinetics in rats. The pharmacokinetic data indicated that 22a was rapidly absorbed and induced lasting plasma and urinary levels. In comparison with rufloxacin, it was excreted in low quantity in urine; a significant amount of desmethylated piperazinyl urinary metabolite was observed.

  DOI：

  10.1021/jm00074a028