4,6-dihydroxy-2-(2'-hydroxybenzylidene)benzofuran-3(2H)-one

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 橙酮类黄酮
• 英文名称: 4,6-dihydroxy-2-(2'-hydroxybenzylidene)benzofuran-3(2H)-one
• 英文别名: (Z)-2-(2-hydroxybenzylidene)-4,6-dihydroxybenzofuran-3(2H)-one；(2Z)-4,6-dihydroxy-2-[(2-hydroxyphenyl)methylene]benzofuran-3-one；(2Z)-4,6-dihydroxy-2-[(2-hydroxyphenyl)methylidene]-1-benzofuran-3-one
• 化学式: C₁₅H₁₀O₅
• 分子量: 270.241
• InChiKey: ZQCNALNCYJBPCR-ACAGNQJTSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  20
• 可旋转键数：
  1
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  87
• 氢给体数：
  3
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  2-氯-1-(2,4,6-三羟基苯基)乙酮 在 sodium methylate 、 三溴化硼 、 potassium carbonate 、 potassium hydroxide 作用下， 以 甲醇 、 乙二醇二甲醚 、 二氯甲烷 、 水 为溶剂， 反应 4.5h， 生成 4,6-dihydroxy-2-(2'-hydroxybenzylidene)benzofuran-3(2H)-one
  参考文献：
  名称：

  Discovery of Naturally Occurring Aurones That Are Potent Allosteric Inhibitors of Hepatitis C Virus RNA-Dependent RNA Polymerase

  摘要：

  We have identified naturally occurring 2-benzylidenebenzofuran-3-ones (aurones) as new templates for non-nucleoside hepatitis C virus (HCV) RNA-dependent RNA polymerase (RdRp) inhibitors. The aurone target site, identified by site-directed mutagenesis, is located in thumb pocket I of HCV RdRp. The RdRp inhibitory activity of 42 aurones was rationally explored in an enzyme assay. Molecular docking studies were used to determine how aurones bind to HCV RdRp and to predict their range of inhibitory activity. Seven aurone derivatives were found to have potent inhibitory effects on HCV RdRp, with IC(50) below 5 mu M and excellent selectivity index (inhibition activity versus cellular cytotoxicity). The most active aurone analogue was (Z)-2-((1-butyl-1H-indo1-3-yl)methylene)-4,6-dihydroxybenzofuran-3(2H)-one (compound 51), with an IC(50) of 2.2 mu M. Their potent RdRp inhibitory activity and their low toxicity make these molecules attractive candidates as direct-acting anti-HCV agents.

  DOI：

  10.1021/jm200242p

文献信息

• Investigation of Binding-Site Homology between Mushroom and Bacterial Tyrosinases by Using Aurones as Effectors
  作者：Romain Haudecoeur、Aurélie Gouron、Carole Dubois、Hélène Jamet、Mark Lightbody、Renaud Hardré、Anne Milet、Elisabetta Bergantino、Luigi Bubacco、Catherine Belle、Marius Réglier、Ahcène Boumendjel

  DOI：10.1002/cbic.201402003

  日期：2014.6.16

  A lighter future: Aurones have been identified as inhibitors of melanin biosynthesis. In this study, 24 aurones were evaluated on mushroom and bacterial tyrosinases (TyM and TyB). The compounds behaved as inhibitors, substrates, or activators of both enzymes. Our results highlight similarities and differences in behavior between TyM and TyB with the same set of molecules.

  更光明的未来： Aurones已被确定为黑色素生物合成的抑制剂。在这项研究中，对蘑菇和细菌酪氨酸酶（TyM和TyB）上的24种金质进行了评估。该化合物充当两种酶的抑制剂，底物或激活剂。我们的结果强调了在同一分子下TyM和TyB之间行为的异同。
• Discovery of Benzylidenebenzofuran-3(2<i>H</i>)-one (Aurones) as Inhibitors of Tyrosinase Derived from Human Melanocytes
  作者：Sabrina Okombi、Delphine Rival、Sébastien Bonnet、Anne-Marie Mariotte、Eric Perrier、Ahcène Boumendjel

  DOI：10.1021/jm050715i

  日期：2006.1.1

  investigate naturally occurring aurones (Z-benzylidenebenzofuran-3(2H)-one) and analogues as human tyrosinase inhibitors. Several aurones bearing hydroxyl groups on A-ring and different substituents on B-ring were synthesized and evaluated as inhibitors of human melanocyte-tyrosinase by an assay which measures tyrosinase-catalyzed l-Dopa oxidation. We found that unsubstituted aurones were weak inhibitors; however

  酪氨酸酶是铜依赖性酶，其将1-酪氨酸转化为多巴醌，并参与不同的生物学过程，例如黑色素生成和皮肤色素沉着。这项研究的目的是研究天然存在的金黄色素（Z-亚苄基苯并呋喃-3（2H）-one）和类似物作为人类酪氨酸酶抑制剂。合成了几种在A环上带有羟基且在B环上具有不同取代基的金酮，并通过测定酪氨酸酶催化的I-多巴氧化的方法评价了其作为人黑素细胞酪氨酸酶的抑制剂。我们发现未取代的金酮是弱抑制剂。然而，优选在4，6和4′位置具有两个或三个羟基的衍生物能够诱导显着的酪氨酸酶抑制作用。发现最有效的金黄色素是天然存在的4,6,4' -三羟基金酮在0.1 mM的浓度下可诱导75％的抑制作用，并且与曲酸（迄今为止已知的最佳酪氨酸酶抑制剂之一）相比非常有效（后者在该浓度下是完全无活性的）。如体内研究显示的那样，活性金氧烷没有毒性作用。
• Functionalized aurones as inducers of NAD(P)H:quinone oxidoreductase 1 that activate AhR/XRE and Nrf2/ARE signaling pathways: Synthesis, evaluation and SAR
  作者：Chong-Yew Lee、Eng-Hui Chew、Mei-Lin Go

  DOI：10.1016/j.ejmech.2010.03.023

  日期：2010.7

  The chemopreventive potential of functionalized aurones and related compounds as inducers of NAD(P) H:quinone oxidoreductase 1 (NQO1, EC 1.6.99.2) are described. Several 4,6-dimethoxy and 5-hydroxyaurones induced NQO1 activity of Hepa1c1c7 cells by 2-fold at submicromolar concentrations, making these the most potent inducers to be identified from this class. Mechanistically, induction of NQO1 was mediated by the activation of AhR/XRE and Nrf2/ARE pathways, indicating that aurones may be mixed activators of NQO1 induction or agents capable of exploiting the proposed cross-talk between the AhR and Nrf2 gene batteries. QSAR analysis by partial least squares projection to latent structures (PLS) identified size parameters, in particular those associated with non-polar surface areas, as an important determinant of induction activity. These were largely determined by the substitution on rings A and B. A stereoelectronic role for the exocyclic double bond as reflected in the E-LUMO term was also identified. The electrophilicity of the double bond or its effect on the conformation of the target compound are possible key features for induction activity. (c) 2010 Elsevier Masson SAS. All rights reserved.
• Discovery of Naturally Occurring Aurones That Are Potent Allosteric Inhibitors of Hepatitis C Virus RNA-Dependent RNA Polymerase
  作者：Romain Haudecoeur、Abdelhakim Ahmed-Belkacem、Wei Yi、Antoine Fortuné、Rozenn Brillet、Catherine Belle、Edwige Nicolle、Coralie Pallier、Jean-Michel Pawlotsky、Ahcène Boumendjel

  DOI：10.1021/jm200242p

  日期：2011.8.11

  We have identified naturally occurring 2-benzylidenebenzofuran-3-ones (aurones) as new templates for non-nucleoside hepatitis C virus (HCV) RNA-dependent RNA polymerase (RdRp) inhibitors. The aurone target site, identified by site-directed mutagenesis, is located in thumb pocket I of HCV RdRp. The RdRp inhibitory activity of 42 aurones was rationally explored in an enzyme assay. Molecular docking studies were used to determine how aurones bind to HCV RdRp and to predict their range of inhibitory activity. Seven aurone derivatives were found to have potent inhibitory effects on HCV RdRp, with IC(50) below 5 mu M and excellent selectivity index (inhibition activity versus cellular cytotoxicity). The most active aurone analogue was (Z)-2-((1-butyl-1H-indo1-3-yl)methylene)-4,6-dihydroxybenzofuran-3(2H)-one (compound 51), with an IC(50) of 2.2 mu M. Their potent RdRp inhibitory activity and their low toxicity make these molecules attractive candidates as direct-acting anti-HCV agents.