3-fluoro-8,9-dihydroxy-6H-benzo[c]chromen-6-one | 1493784-06-7

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 香豆素及其衍生物
• 英文名称: 3-fluoro-8,9-dihydroxy-6H-benzo[c]chromen-6-one
• CAS: 1493784-06-7
• 化学式: C₁₃H₇FO₄
• 分子量: 246.195
• InChiKey: KUEPPNJCTPMRAF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  18.0
• 可旋转键数：
  0.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  70.67
• 氢给体数：
  2.0
• 氢受体数：
  4.0

反应信息

• 作为产物：
  描述：

  5-氟-2-甲氧基苯硼酸 在 potassium permanganate 、 sodium dihydrogenphosphate 、 四(三苯基膦)钯 、 三溴化硼 、 potassium carbonate 、 叔丁醇 作用下， 以 二氯甲烷 、 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 50.0h， 生成 3-fluoro-8,9-dihydroxy-6H-benzo[c]chromen-6-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

文献信息

• Exploration of Novel Urolithin C Derivatives as Non-Competitive Inhibitors of Liver Pyruvate Kinase
  作者：Umberto Maria Battisti、Leticia Monjas、Fady Akladios、Josipa Matic、Eric Andresen、Carolin H. Nagel、Malin Hagkvist、Liliana Håversen、Woonghee Kim、Mathias Uhlen、Jan Borén、Adil Mardinoğlu、Morten Grøtli

  DOI：10.3390/ph16050668

  日期：——

  The inhibition of liver pyruvate kinase could be beneficial to halt or reverse non-alcoholic fatty liver disease (NAFLD), a progressive accumulation of fat in the liver that can lead eventually to cirrhosis. Recently, urolithin C has been reported as a new scaffold for the development of allosteric inhibitors of liver pyruvate kinase (PKL). In this work, a comprehensive structure–activity analysis of urolithin C was carried out. More than 50 analogues were synthesized and tested regarding the chemical features responsible for the desired activity. These data could pave the way to the development of more potent and selective PKL allosteric inhibitors.

  肝脏丙酮酸激酶是一种脂肪在肝脏中逐渐积累并最终导致肝硬化的疾病，抑制肝脏丙酮酸激酶有助于阻止或逆转非酒精性脂肪肝。最近，有报道称尿石素 C 是开发肝丙酮酸激酶（PKL）异位抑制剂的新支架。本研究对尿石素 C 进行了全面的结构-活性分析。我们合成了 50 多种类似物，并测试了这些类似物所具有的化学特征。这些数据可为开发更强效、更具选择性的 PKL 异位抑制剂铺平道路。
• 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.