3-(5-氯-2-甲氧基苯基)吡啶-4-羧酸 | 1261936-05-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 中文名称: 3-(5-氯-2-甲氧基苯基)吡啶-4-羧酸
• 英文名称: 3-(5-chloro-2-methoxyphenyl)isonicotinic acid
• 英文别名: 3-(5-Chloro-2-methoxyphenyl)pyridine-4-carboxylic acid
• CAS: 1261936-05-3
• 化学式: C₁₃H₁₀ClNO₃
• 分子量: 263.68
• InChiKey: CRZALIFEDWYDAF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.08
• 拓扑面积：
  59.4
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  3-(5-氯-2-甲氧基苯基)吡啶-4-羧酸 在 三溴化硼 作用下， 以 二氯甲烷 为溶剂， 反应 24.0h， 以71.5%的产率得到9-chloro-5H-chromene[4,3-c]pyridin-5-one
  参考文献：
  名称：

  The Fungal Phytotoxin Alternariol 9-Methyl Ether and Some of Its Synthetic Analogues Inhibit the Photosynthetic Electron Transport Chain

  摘要：

  Alternariol and monomethylalternariol are natural phytotoxins produced by some fungal strains, such as Nimbya and Alternaria. These substances confer virulence to phytopathogens, yet no information is available concerning their mode of action. Here we show that in the micromolar range alternariol 9-methyl ether is able to inhibit the electron transport chain (IC50 = 29.1 +/- 6.5 mu M) in isolated spinach chloroplasts. Since its effectiveness is limited by poor solubility in water, several alternariol analogues were synthesized using different aromatic aldehydes. The synthesized 6H-benzo[c]cromen-6-ones, 5H-chromene[4,3-b]pyridin-5-one, and 5H-chromene[4,3-c]pyridin-5-one also showed inhibitory properties, and three 6H-benzo[c]cromen-6-ones were more effective (IC50 =12.8-22.8 mu M) than the lead compound. Their addition to the culture medium of a cyanobacterial model strain was found to inhibit algal growth, with a relative effectiveness that was consistent with their activity in vitro. In contrast, the growth of a nonphotosynthetic plant cell culture was poorly affected. These compounds may represent a novel lead for the development of new active principles targeting photosynthesis.

  DOI：

  10.1021/np4005882
• 作为产物：
  描述：

  5-氯-2-甲氧基苯硼酸 在 potassium permanganate 、 sodium dihydrogenphosphate 、 四(三苯基膦)钯 、 potassium carbonate 、 叔丁醇 作用下， 以 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 26.0h， 生成 3-(5-氯-2-甲氧基苯基)吡啶-4-羧酸
  参考文献：
  名称：

  The Fungal Phytotoxin Alternariol 9-Methyl Ether and Some of Its Synthetic Analogues Inhibit the Photosynthetic Electron Transport Chain

  摘要：

  Alternariol and monomethylalternariol are natural phytotoxins produced by some fungal strains, such as Nimbya and Alternaria. These substances confer virulence to phytopathogens, yet no information is available concerning their mode of action. Here we show that in the micromolar range alternariol 9-methyl ether is able to inhibit the electron transport chain (IC50 = 29.1 +/- 6.5 mu M) in isolated spinach chloroplasts. Since its effectiveness is limited by poor solubility in water, several alternariol analogues were synthesized using different aromatic aldehydes. The synthesized 6H-benzo[c]cromen-6-ones, 5H-chromene[4,3-b]pyridin-5-one, and 5H-chromene[4,3-c]pyridin-5-one also showed inhibitory properties, and three 6H-benzo[c]cromen-6-ones were more effective (IC50 =12.8-22.8 mu M) than the lead compound. Their addition to the culture medium of a cyanobacterial model strain was found to inhibit algal growth, with a relative effectiveness that was consistent with their activity in vitro. In contrast, the growth of a nonphotosynthetic plant cell culture was poorly affected. These compounds may represent a novel lead for the development of new active principles targeting photosynthesis.

  DOI：

  10.1021/np4005882

文献信息

• The Fungal Phytotoxin Alternariol 9-Methyl Ether and Some of Its Synthetic Analogues Inhibit the Photosynthetic Electron Transport Chain
  作者：Antonio Jacinto Demuner、Luiz Cláudio Almeida Barbosa、Ana Cristina Mendes Miranda、Guilherme Carvalho Geraldo、Cleiton Moreira da Silva、Samuele Giberti、Michele Bertazzini、Giuseppe Forlani

  DOI：10.1021/np4005882

  日期：2013.12.27

  Alternariol and monomethylalternariol are natural phytotoxins produced by some fungal strains, such as Nimbya and Alternaria. These substances confer virulence to phytopathogens, yet no information is available concerning their mode of action. Here we show that in the micromolar range alternariol 9-methyl ether is able to inhibit the electron transport chain (IC50 = 29.1 +/- 6.5 mu M) in isolated spinach chloroplasts. Since its effectiveness is limited by poor solubility in water, several alternariol analogues were synthesized using different aromatic aldehydes. The synthesized 6H-benzo[c]cromen-6-ones, 5H-chromene[4,3-b]pyridin-5-one, and 5H-chromene[4,3-c]pyridin-5-one also showed inhibitory properties, and three 6H-benzo[c]cromen-6-ones were more effective (IC50 =12.8-22.8 mu M) than the lead compound. Their addition to the culture medium of a cyanobacterial model strain was found to inhibit algal growth, with a relative effectiveness that was consistent with their activity in vitro. In contrast, the growth of a nonphotosynthetic plant cell culture was poorly affected. These compounds may represent a novel lead for the development of new active principles targeting photosynthesis.