4-Hydroxy-6,8-dimethoxyquinoline-3-carboxylic acid | 111185-88-7

• 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: 4-Hydroxy-6,8-dimethoxyquinoline-3-carboxylic acid
• 英文别名: 6,8-dimethoxy-4-oxo-1H-quinoline-3-carboxylic acid
• CAS: 111185-88-7
• 化学式: C₁₂H₁₁NO₅
• mdl: MFCD05228452
• 分子量: 249.223
• InChiKey: UAUGYIAYNNSEBS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.166
• 拓扑面积：
  84.9
• 氢给体数：
  2
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  4-Hydroxy-6,8-dimethoxyquinoline-3-carboxylic acid 在 二苯甲酮 、 三氯氧磷 作用下， 生成 4-chloro-6,8-dimethoxyquinoline
  参考文献：
  名称：

  Hypoxia-Selective Antitumor Agents. 15. Modification of Rate of Nitroreduction and Extent of Lysosomal Uptake by Polysubstitution of 4-(Alkylamino)-5-nitroquinoline Bioreductive Drugs

  摘要：

  Studies have shown that 4-(alkylamino)-5-nitroquinolines possess high selectivity (20-60-fold) for hypoxic tumor cells in vitro, but are not active as hypoxia-selective cytotoxins (HSCs) in vivo. The compounds show inadequate rates of extravascular diffusion, likely due both to sequestration of the bisbasic compounds into lysosomes and rapid nitroreduction. A further series of analogues, designed to counteract these limitations, has been synthesized and evaluated. Analogues bearing one to three electron-donating substituents on the quinoline have one-electron reduction potentials up to 100 mV lower than that of the unsubstituted compound (5), but do not have improved biological activity. The relationship between hypoxic selectivity and rates of metabolic reduction suggests at least two mechanisms of cytotoxicity for this series of 5-nitroquinolines. Compounds with high rates of reduction are toxic via oxygen-sensitive net bioreduction, while compounds which are poor substrates for nitroreduction are toxic through an oxygen-insensitive non-bioreductive mechanism. As rates of metabolic reduction are lowered, the non-bioreductive mechanism of toxicity becomes dominant and hypoxic selectivity is lost. A small series of analogues bearing hydrophilic but neutral side chains were also prepared. Compounds with a dihydroxypropyl side chain retained cytotoxic potency and hypoxic cell selectivity in cell culture assays, and had lowered uptake into lysosomes, but none of three analogues evaluated against KHT tumors in mice showed activity as an HSC in vivo.

  DOI：

  10.1021/jm9607865
• 作为产物：
  描述：

  2,4-二甲氧基苯胺 在 sodium hydroxide 作用下， 以 various solvent(s) 为溶剂， 反应 3.0h， 生成 4-Hydroxy-6,8-dimethoxyquinoline-3-carboxylic acid
  参考文献：
  名称：

  Evaluation of 3-Carboxy-4(1H)-quinolones as Inhibitors of Human Protein Kinase CK2

  摘要：

  Due to the emerging role of protein kinase CK2 as a molecule that participates not only in the development of some cancers but also in viral infections and inflammatory failures, small organic inhibitors of CK2, besides application in scientific research, may have therapeutic significance. In this paper, we present a new class of CK2 inhibitorss3-carboxy-4(1H)-quinolones. This class of inhibitors has been selected via receptor-based virtual screening of the Otava compound library. It was revealed that the most active compounds, 5,6,8-trichloro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (7) (IC50 = 0.3 mu M) and 4-oxo-1,4-dihydrobenzo[h] quinoline-3-carboxylic acid (9) (IC50 = 1 AM), are ATP competitive (K-i values are 0.06 and 0.28 mu M, respectively). Evaluation of the inhibitors on seven protein kinases shows considerable selectivity toward CK2. According to theoretical calculations and experimental data, a structural model describing the key features of 3-carboxy-4(1H)-quinolones responsible for tight binding to CK2 active site has been developed.

  DOI：

  10.1021/jm050048t

文献信息

• OZEKI KOHJI; ISHIZUKA YASUHIRO; SAWADA MASAHIRO; ICHIKAWA TERU; SATO MAKO+, J. PHARM. SOC. JAP., 107,(1987) N 2, 123-134
  作者：OZEKI KOHJI、 ISHIZUKA YASUHIRO、 SAWADA MASAHIRO、 ICHIKAWA TERU、 SATO MAKO+

  DOI：——

  日期：——
• Evaluation of 3-Carboxy-4(1<i>H</i>)-quinolones as Inhibitors of Human Protein Kinase CK2
  作者：Andriy G. Golub、Olexander Ya. Yakovenko、Volodymyr G. Bdzhola、Vladislav M. Sapelkin、Piotr Zien、Sergiy M. Yarmoluk

  DOI：10.1021/jm050048t

  日期：2006.11.1

  Due to the emerging role of protein kinase CK2 as a molecule that participates not only in the development of some cancers but also in viral infections and inflammatory failures, small organic inhibitors of CK2, besides application in scientific research, may have therapeutic significance. In this paper, we present a new class of CK2 inhibitorss3-carboxy-4(1H)-quinolones. This class of inhibitors has been selected via receptor-based virtual screening of the Otava compound library. It was revealed that the most active compounds, 5,6,8-trichloro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (7) (IC50 = 0.3 mu M) and 4-oxo-1,4-dihydrobenzo[h] quinoline-3-carboxylic acid (9) (IC50 = 1 AM), are ATP competitive (K-i values are 0.06 and 0.28 mu M, respectively). Evaluation of the inhibitors on seven protein kinases shows considerable selectivity toward CK2. According to theoretical calculations and experimental data, a structural model describing the key features of 3-carboxy-4(1H)-quinolones responsible for tight binding to CK2 active site has been developed.
• Hypoxia-Selective Antitumor Agents. 15. Modification of Rate of Nitroreduction and Extent of Lysosomal Uptake by Polysubstitution of 4-(Alkylamino)-5-nitroquinoline Bioreductive Drugs
  作者：Bronwyn G. Siim、Graham J. Atwell、Robert F. Anderson、Peter Wardman、Susan M. Pullen、William R. Wilson、William A. Denny

  DOI：10.1021/jm9607865

  日期：1997.4.1

  Studies have shown that 4-(alkylamino)-5-nitroquinolines possess high selectivity (20-60-fold) for hypoxic tumor cells in vitro, but are not active as hypoxia-selective cytotoxins (HSCs) in vivo. The compounds show inadequate rates of extravascular diffusion, likely due both to sequestration of the bisbasic compounds into lysosomes and rapid nitroreduction. A further series of analogues, designed to counteract these limitations, has been synthesized and evaluated. Analogues bearing one to three electron-donating substituents on the quinoline have one-electron reduction potentials up to 100 mV lower than that of the unsubstituted compound (5), but do not have improved biological activity. The relationship between hypoxic selectivity and rates of metabolic reduction suggests at least two mechanisms of cytotoxicity for this series of 5-nitroquinolines. Compounds with high rates of reduction are toxic via oxygen-sensitive net bioreduction, while compounds which are poor substrates for nitroreduction are toxic through an oxygen-insensitive non-bioreductive mechanism. As rates of metabolic reduction are lowered, the non-bioreductive mechanism of toxicity becomes dominant and hypoxic selectivity is lost. A small series of analogues bearing hydrophilic but neutral side chains were also prepared. Compounds with a dihydroxypropyl side chain retained cytotoxic potency and hypoxic cell selectivity in cell culture assays, and had lowered uptake into lysosomes, but none of three analogues evaluated against KHT tumors in mice showed activity as an HSC in vivo.