2-(3,4-dimethoxybenzyl)-benzo[d]-thiazole

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2-(3,4-dimethoxybenzyl)-benzo[d]-thiazole
• 英文别名: 2-(3,4-Dimethoxybenzyl)-1,3-benzothiazole；2-[(3,4-dimethoxyphenyl)methyl]-1,3-benzothiazole
• 化学式: C₁₆H₁₅NO₂S
• 分子量: 285.367
• InChiKey: LZFWKZBQKFRXPM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.3
• 重原子数：
  20
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.19
• 拓扑面积：
  59.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2-(3,4-dimethoxybenzyl)-benzo[d]-thiazole 在 caesium carbonate 作用下， 以 N,N-二甲基甲酰胺-d7 为溶剂， 反应 20.0h， 以88%的产率得到benzo[d]thiazol-2-yl(3,4-dimethoxyphenyl)methanone
  参考文献：
  名称：

  苯并唑衍生物的无金属需氧氧化†

  摘要：

  2-苄基苯并噻唑和苯并咪唑在空气和碱性条件下容易氧化，以高收率得到相应的酮。指某东西的用途醋酸钯 作为催化剂，收效甚微，甚至在某些情况下收率低得多。

  DOI：

  10.1039/c3ob27404g
• 作为产物：
  描述：

  3,4-二甲氧基苯乙酸 、 2-氨基苯硫醇 在 劳森试剂 作用下， 反应 0.01h， 以85%的产率得到2-(3,4-dimethoxybenzyl)-benzo[d]-thiazole
  参考文献：
  名称：

  Lawesson 试剂和微波：一种在无溶剂条件下从羧酸中高效获取苯并恶唑和苯并噻唑的新途径

  摘要：

  Lawesson 试剂在无溶剂微波辅助下由羧酸和 2-氨基苯酚合成 2-取代苯并恶唑的过程中充当有效促进剂，因此构成了这些化合物的通用合成方法。Lawesson 试剂的这种新应用也适用于具有非常高效率水平的苯并噻唑。各种芳香族、杂芳香族和脂肪族羧酸在所开发的条件下反应，在所有情况下都具有良好的产率。硫代苯甲酸是在没有溶剂的情况下微波辅助合成 2-苯基苯并恶唑和 2-苯基苯并噻唑的良好替代品。

  DOI：

  10.1055/s-2007-967994

文献信息

• Lawesson’s Reagent and Microwaves: A New Efficient Access to Benzoxazoles and Benzothiazoles from Carboxylic Acids under Solvent-Free Conditions
  作者：Julio Seijas、M. Vázquez-Tato、M. Carballido-Reboredo、José Crecente-Campo、Lucía Romar-López

  DOI：10.1055/s-2007-967994

  日期：2007.2

  Lawesson's reagent acts as an efficient promoter in the solvent-free microwave-assisted synthesis of 2-substituted benzoxazoles from carboxylic acids and 2-aminophenol, and thus, constitutes a general synthetic method for these compounds. This new application of Lawesson's reagent is valid also for benzothiazoles with very high efficiency level. A variety of aromatic, heteroaromatic and aliphatic carboxylic

  Lawesson 试剂在无溶剂微波辅助下由羧酸和 2-氨基苯酚合成 2-取代苯并恶唑的过程中充当有效促进剂，因此构成了这些化合物的通用合成方法。Lawesson 试剂的这种新应用也适用于具有非常高效率水平的苯并噻唑。各种芳香族、杂芳香族和脂肪族羧酸在所开发的条件下反应，在所有情况下都具有良好的产率。硫代苯甲酸是在没有溶剂的情况下微波辅助合成 2-苯基苯并恶唑和 2-苯基苯并噻唑的良好替代品。
• Metal-free aerobic oxidation of benzazole derivatives
  作者：Aurélie Dos Santos、Laurent El Kaïm、Laurence Grimaud

  DOI：10.1039/c3ob27404g

  日期：——

  2-Benzyl benzothiazoles and benzimidazoles are easily oxidized under air and basic conditions to give the corresponding ketones in good yields. The use of palladium acetate as a catalyst has little effect and even gives, in some cases, much lower yields.

  2-苄基苯并噻唑和苯并咪唑在空气和碱性条件下容易氧化，以高收率得到相应的酮。指某东西的用途醋酸钯 作为催化剂，收效甚微，甚至在某些情况下收率低得多。
• Identification and validation of a novel dual small-molecule TLR2/8 antagonist
  作者：Maria Grabowski、Marcel Bermudez、Thomas Rudolf、Dora Šribar、Péter Varga、Manuela S. Murgueitio、Gerhard Wolber、Jörg Rademann、Günther Weindl

  DOI：10.1016/j.bcp.2020.113957

  日期：2020.7

  Toll-like receptor 2 (TLR2) and TLR8 are involved in the recognition of bacterial and viral components and are linked not only to protective antimicrobial immunity but also to inflammatory diseases. Recently, increasing attention has been paid to the receptor crosstalk between TLR2 and TLR8 to fine-tune innate immune responses. In this study, we report a novel dual TLR2/TLR8 antagonist, compound 24 that was developed by a modeling-guided synthesis approach. The modulator was optimized from the previously reported 1,3-benzothiazole derivative, compound 8. Compound 24 was pharmacologically characterized for the ability to inhibit TLR2- and TLR8-mediated responses in TLR-overexpressing reporter cells and THP-1 macrophages. The modulator showed high efficacy with IC50, values in the low micromolar range for both TLR5, selectivity towards other TLR5 and low cytotoxicity. At TLR2, a slight predominance for the TLR2/1 heterodimer was found in reporter cells selectively expressing TLR2/1 or TLR2/6 heterodimers. Concentration ratio analysis in the presence of Pam(3)CSK(4) or Pam(2)CSK(4) indicated non-competitive antagonist behavior at hTLR2. In computational docking studies, a plausible alternative binding mode of compound 24 was predicted for both TLR2 and TLR8. Our results provide evidence that it is feasible to simultaneously and selectively target endosomal- and surface-located TLR5. We identified a small-molecule dual TLR2/8 antagonist that may serve as a valuable pharmacological tool to decipher the role of TLR2/8 co-signaling in inflammation.