ethyl 1,4-dihydro-7-methoxy-6-nitro-4-oxo-1-(2-thiazolyl)-1,8-naphthyridine-3-carboxylate | 685879-41-8

• 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: ethyl 1,4-dihydro-7-methoxy-6-nitro-4-oxo-1-(2-thiazolyl)-1,8-naphthyridine-3-carboxylate
• 英文别名: Ethyl 7-methoxy-6-nitro-4-oxo-1-(1,3-thiazol-2-yl)-1,8-naphthyridine-3-carboxylate
• CAS: 685879-41-8
• 化学式: C₁₅H₁₂N₄O₆S
• 分子量: 376.349
• InChiKey: AFSXSZULFXQVCU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  26
• 可旋转键数：
  5
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  156
• 氢给体数：
  0
• 氢受体数：
  10

反应信息

• 作为反应物：
  描述：

  ethyl 1,4-dihydro-7-methoxy-6-nitro-4-oxo-1-(2-thiazolyl)-1,8-naphthyridine-3-carboxylate 在 镍 氢气 作用下， 以 1,4-二氧六环 、 乙醇 为溶剂， 反应 2.5h， 以61%的产率得到ethyl 6-amino-1,4-dihydro-7-methoxy-4-oxo-1-(2-thiazolyl)-1,8-naphthyridine-3-carboxylate
  参考文献：
  名称：

  Synthesis and Structure−Activity Relationships of Novel 7-Substituted 1,4-Dihydro-4-oxo-1-(2-thiazolyl)-1,8-naphthyridine-3-carboxylic Acids as Antitumor Agents. Part 2

  摘要：

  We have previously reported that a series of 7-substituted 6-fluoro-1,4-dihydro-4-oxo-1-(2-thiazolyl)-1,8-naphthyridine-3-carboxylic acids possess moderate cytotoxic activity. In a further attempt to find clinically useful antitumor agents, we investigated the structure-activity relationships (SARs) of a new series of compounds obtained by changing the C-6 position of the fluorine atom in addition to the C-5 and C-7 positions and evaluating their cytotoxic activity against several murine and human tumor cell lines. Our results showed that the 6-unsubstituted 1,8-naphthyridine structure had the most potent cytotoxic activity against murine P388 leukemia twice that of the 6-fluoro analogue. In addition, introduction of an amino group at the C-5 position did not have any substantial effect on the cytotoxic activity, while both the 5-chloro and 5-trifluoromethyl groups decreased the cytotoxic activity by 5- to 10-fold. Moreover, aminopyrrolidine derivatives at the C-7 position showed more potent cytotoxic activity than other amines or carbon derivatives. Among the 7-(3-aminopyrrolidinyl) derivatives, the trans-3-methoxy-4-methylaminopyrrolidinyI derivative (271) was determined to have potent cytotoxic activity in both in vitro and in vivo assays and high water solubility. Finally, the (SS)-isomer (AG-7352, 3) of 271, with a cytotoxic activity against human tumor cell lines more potent than that of etoposide, was selected for further development.

  DOI：

  10.1021/jm0304966
• 作为产物：
  描述：

  ethyl 2-(2,6-dimethoxy-5-nitro-3-nicotinoyl)-3-(2-thiazolylamino)acrylate 在 potassium carbonate 作用下， 以 1,4-二氧六环 为溶剂， 反应 3.0h， 以90%的产率得到ethyl 1,4-dihydro-7-methoxy-6-nitro-4-oxo-1-(2-thiazolyl)-1,8-naphthyridine-3-carboxylate
  参考文献：
  名称：

  Synthesis and Structure−Activity Relationships of Novel 7-Substituted 1,4-Dihydro-4-oxo-1-(2-thiazolyl)-1,8-naphthyridine-3-carboxylic Acids as Antitumor Agents. Part 2

  摘要：

  We have previously reported that a series of 7-substituted 6-fluoro-1,4-dihydro-4-oxo-1-(2-thiazolyl)-1,8-naphthyridine-3-carboxylic acids possess moderate cytotoxic activity. In a further attempt to find clinically useful antitumor agents, we investigated the structure-activity relationships (SARs) of a new series of compounds obtained by changing the C-6 position of the fluorine atom in addition to the C-5 and C-7 positions and evaluating their cytotoxic activity against several murine and human tumor cell lines. Our results showed that the 6-unsubstituted 1,8-naphthyridine structure had the most potent cytotoxic activity against murine P388 leukemia twice that of the 6-fluoro analogue. In addition, introduction of an amino group at the C-5 position did not have any substantial effect on the cytotoxic activity, while both the 5-chloro and 5-trifluoromethyl groups decreased the cytotoxic activity by 5- to 10-fold. Moreover, aminopyrrolidine derivatives at the C-7 position showed more potent cytotoxic activity than other amines or carbon derivatives. Among the 7-(3-aminopyrrolidinyl) derivatives, the trans-3-methoxy-4-methylaminopyrrolidinyI derivative (271) was determined to have potent cytotoxic activity in both in vitro and in vivo assays and high water solubility. Finally, the (SS)-isomer (AG-7352, 3) of 271, with a cytotoxic activity against human tumor cell lines more potent than that of etoposide, was selected for further development.

  DOI：

  10.1021/jm0304966