3-Benzofurancarboxylic acid, 6-hydroxy-5-methoxy-2-methyl-, ethyl ester | 1186532-65-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并呋喃
• 英文名称: 3-Benzofurancarboxylic acid, 6-hydroxy-5-methoxy-2-methyl-, ethyl ester
• 英文别名: ethyl 6-hydroxy-5-methoxy-2-methyl-1-benzofuran-3-carboxylate
• CAS: 1186532-65-9
• 化学式: C₁₃H₁₄O₅
• 分子量: 250.251
• InChiKey: FNZSSJGLRAXCEV-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：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.31
• 拓扑面积：
  68.9
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  3-Benzofurancarboxylic acid, 6-hydroxy-5-methoxy-2-methyl-, ethyl ester 在 咪唑 、 N-溴代丁二酰亚胺(NBS) 、 caesium carbonate 、 N,N-二甲基甲酰胺 作用下， 以 乙酸乙酯 、 N,N-二甲基甲酰胺 为溶剂， 反应 32.0h， 生成 ethyl 6-((tert-butyldimethylsilyl)oxy)-2-(((3-(ethoxycarbonyl)-2-(((3-(ethoxycarbonyl)-6-methoxy-2-methylbenzofuran-5-yl)oxy)methyl)-6-methoxybenzofuran-5-yl)oxy)methyl)-5-methoxybenzofuran-3-carboxylate
  参考文献：
  名称：

  Designing Allosteric Regulators of Thrombin. Exosite 2 Features Multiple Subsites That Can Be Targeted by Sulfated Small Molecules for Inducing Inhibition

  摘要：

  We recently designed a group of novel exosite-2-directed sulfated, small, allosteric inhibitors of thrombin. To develop more potent inhibitors, monosulfated benzofuran tri- and tetrameric homologues of the parent designed dimers were synthesized in seven to eight steps and found to exhibit a wide range of potencies. Among these, trimer 9a was found to be nearly 10-fold more potent than the first generation molecules. Michaelis-Menten studies indicated an allosteric mechanism of inhibition. Competitive studies using a hirudin peptide (exosite 1 ligand) and unfractionated heparin, heparin octasaccharide, and gamma'-fibrinogen peptide (exosite 2 ligands) demonstrated exosite 2 recognition in a manner different from that of the parent dimers. Alanine scanning mutagenesis of 12 Arg/Lys residues of exosite 2 revealed a defect in 9a potency for Arg233Ala thrombin only confirming the major difference in site of recognition between the two structurally related sulfated benzofurans. The results suggest that multiple avenues are available within exosite 2 for inducing thrombin inhibition.

  DOI：

  10.1021/jm400369q
• 作为产物：
  描述：

  邻苯二酚 在 caesium carbonate 、 N,N-二异丙基乙胺 作用下， 以 乙醇 、 N,N-二甲基甲酰胺 为溶剂， 反应 25.16h， 生成 3-Benzofurancarboxylic acid, 6-hydroxy-5-methoxy-2-methyl-, ethyl ester
  参考文献：
  名称：

  Rational Design of Potent, Small, Synthetic Allosteric Inhibitors of Thrombin

  摘要：

  Thrombin is a key enzyme targeted by the majority of current anticoagulants that are direct inhibitors. Allosteric inhibition of thrombin may. offer a major advantage of finely tuned regulation. We present here sulfated benzofurans as the first examples of potent, small allosteric inhibitors of thrombin. A sulfated benzofuran library of 15 sulfated monomers and 13 sulfated dimers with different charged, polar, and hydrophobic substituents was studied in this work. Synthesis of the sulfated benzofurans was achieved through a multiple step, highly branched strategy, which culminated with microwave-assisted chemical sulfation. Of the 28 potential inhibitors, 11 exhibited reasonable inhibition of human a.-thrombin at pH 7.4. Structure-activity relationship analysis indicated that sulfation at the 5-position of the benzofuran scaffold was essential for targeting thrombin. A tert-butyl 5-sulfated benzofuran derivative was found to be the most potent thrombin inhibitor with an IC50 of 7.3 mu M under physiologically relevant conditions. Michaelis-Menten studies showed an allosteric inhibition phenomenon. Plasma clotting assays indicate that the sulfated benzofurans prolong both the activated partial thromboplastin time and prothrombin time. Overall, this work puts forward sulfated benzofurans as the first small, synthetic molecules as powerful lead compounds for the design of a new class of allosteric inhibitors of thrombin.

  DOI：

  10.1021/jm2005767

文献信息

• First steps in the direction of synthetic, allosteric, direct inhibitors of thrombin and factor Xa
  作者：Jenson Verghese、Aiye Liang、Preet Pal Singh Sidhu、Michael Hindle、Qibing Zhou、Umesh R. Desai

  DOI：10.1016/j.bmcl.2009.06.013

  日期：2009.8

  Designing non-saccharide functional mimics of heparin is a major challenge. In this work, a library of small, aromatic molecules based on the sulfated DHP scaffold was synthesized and screened against thrombin and factor Xa. The results reveal that (i) selected monomeric benzofuran derivatives inhibit the two enzymes, albeit weakly; (ii) the two enzymes recognize different structural features in the

  设计肝素的非糖类功能模拟物是一项重大挑战。在这项工作中，合成了一个基于硫酸化 DHP 支架的芳香小分子库，并针对凝血酶和 Xa 因子进行了筛选。结果表明：（ⅰ）选择的单体苯并呋喃衍生物抑制这两种酶，尽管弱; (ii) 这两种酶识别所研究的苯并呋喃中的不同结构特征，表明识别具有显着的选择性；(iii) 抑制机制是变构的。这些分子代表了两种酶的第一个变构小分子抑制剂。
• [EN] FGFR4 INHIBITORS<br/>[FR] INHIBITEURS DE FGFR4
  申请人：EISAI R&D MAN CO LTD

  公开号：WO2015057963A1

  公开（公告）日：2015-04-23

  Provided herein are compounds of Formula I and Formula II useful as FGFR4 inhibitors, as well as methods of use of the same.

  本文提供的I和II式化合物可用作FGFR4抑制剂，并提供了使用它们的方法。
• Rational Design of Potent, Small, Synthetic Allosteric Inhibitors of Thrombin
  作者：Preetpal Singh Sidhu、Aiye Liang、Akul Y. Mehta、May H. Abdel Aziz、Qibing Zhou、Umesh R. Desai

  DOI：10.1021/jm2005767

  日期：2011.8.11

  Thrombin is a key enzyme targeted by the majority of current anticoagulants that are direct inhibitors. Allosteric inhibition of thrombin may. offer a major advantage of finely tuned regulation. We present here sulfated benzofurans as the first examples of potent, small allosteric inhibitors of thrombin. A sulfated benzofuran library of 15 sulfated monomers and 13 sulfated dimers with different charged, polar, and hydrophobic substituents was studied in this work. Synthesis of the sulfated benzofurans was achieved through a multiple step, highly branched strategy, which culminated with microwave-assisted chemical sulfation. Of the 28 potential inhibitors, 11 exhibited reasonable inhibition of human a.-thrombin at pH 7.4. Structure-activity relationship analysis indicated that sulfation at the 5-position of the benzofuran scaffold was essential for targeting thrombin. A tert-butyl 5-sulfated benzofuran derivative was found to be the most potent thrombin inhibitor with an IC50 of 7.3 mu M under physiologically relevant conditions. Michaelis-Menten studies showed an allosteric inhibition phenomenon. Plasma clotting assays indicate that the sulfated benzofurans prolong both the activated partial thromboplastin time and prothrombin time. Overall, this work puts forward sulfated benzofurans as the first small, synthetic molecules as powerful lead compounds for the design of a new class of allosteric inhibitors of thrombin.
• Designing Allosteric Regulators of Thrombin. Exosite 2 Features Multiple Subsites That Can Be Targeted by Sulfated Small Molecules for Inducing Inhibition
  作者：Preetpal Singh Sidhu、May H. Abdel Aziz、Aurijit Sarkar、Akul Y. Mehta、Qibing Zhou、Umesh R. Desai

  DOI：10.1021/jm400369q

  日期：2013.6.27

  We recently designed a group of novel exosite-2-directed sulfated, small, allosteric inhibitors of thrombin. To develop more potent inhibitors, monosulfated benzofuran tri- and tetrameric homologues of the parent designed dimers were synthesized in seven to eight steps and found to exhibit a wide range of potencies. Among these, trimer 9a was found to be nearly 10-fold more potent than the first generation molecules. Michaelis-Menten studies indicated an allosteric mechanism of inhibition. Competitive studies using a hirudin peptide (exosite 1 ligand) and unfractionated heparin, heparin octasaccharide, and gamma'-fibrinogen peptide (exosite 2 ligands) demonstrated exosite 2 recognition in a manner different from that of the parent dimers. Alanine scanning mutagenesis of 12 Arg/Lys residues of exosite 2 revealed a defect in 9a potency for Arg233Ala thrombin only confirming the major difference in site of recognition between the two structurally related sulfated benzofurans. The results suggest that multiple avenues are available within exosite 2 for inducing thrombin inhibition.