3-{2-[(2E)-2-(4-bromobenzylidene)hydrazinyl]-1,3-thiazol-4-yl}-2H-chromen-2-one | 1408316-02-8

• 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-{2-[(2E)-2-(4-bromobenzylidene)hydrazinyl]-1,3-thiazol-4-yl}-2H-chromen-2-one
• 英文别名: 3-[2-[(2E)-2-[(4-bromophenyl)methylidene]hydrazinyl]-1,3-thiazol-4-yl]chromen-2-one
• CAS: 1408316-02-8
• 化学式: C₁₉H₁₂BrN₃O₂S
• 分子量: 426.293
• InChiKey: IZLBRKOBYXGVDP-UFFVCSGVSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.3
• 重原子数：
  26
• 可旋转键数：
  4
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  91.8
• 氢给体数：
  1
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  水杨醛 在 哌啶 、 溴 作用下， 以 乙醇 、 氯仿 为溶剂， 生成 3-{2-[(2E)-2-(4-bromobenzylidene)hydrazinyl]-1,3-thiazol-4-yl}-2H-chromen-2-one
  参考文献：
  名称：

  Synthesis and Biological Evaluation of 3-thiazolocoumarinyl Schiff-base Derivatives as Cholinesterase Inhibitors

  摘要：

  On the basis of the observed biological activity of the coumarins, a new set of 3‐thiazolocoumarinyl Schiff‐base derivatives with chlorine, hydroxy and methoxy functional group substitutions were designed and synthesized. These compounds were tested against acetylcholinesterase from Electrophorus electricus and butyrylcholinesterase from horse serum and their structure–activity relationship was established. Studies revealed them as the potential inhibitors of cholinesterase (acetylcholinesterase and butyrylcholinesterase). The 3f was found to be most potent against acetylcholinesterase with Ki value of 1.05 ± 0.3 μm and 3l showed excellent inhibitory action against butyrylcholinesterase with Ki value of 0.041 ± 0.002 μm. The synthesized compounds were also docked into the active sites of the homology models of acetylcholinesterase and butyrylcholinesterase to predict the binding modes of these compounds. It was predicted that most of the compounds have similar binding modes with reasonable binding affinities. Our docking studies have also shown that these synthesized compounds have better interaction patterns with butyrylcholinesterase over acetylcholinesterase. The main objective of the study was to develop new potent and selective compounds, which might be further optimized to prevent the progression of the Alzheimer’s disease and could provide symptomatic treatment.

  DOI：

  10.1111/j.1747-0285.2012.01435.x

文献信息

• Synthesis and Biological Evaluation of 3-thiazolocoumarinyl Schiff-base Derivatives as Cholinesterase Inhibitors
  作者：Rabia Raza、Aamer Saeed、Mubeen Arif、Shamsul Mahmood、Muhammad Muddassar、Ahsan Raza、Jamshed Iqbal

  DOI：10.1111/j.1747-0285.2012.01435.x

  日期：2012.10

  On the basis of the observed biological activity of the coumarins, a new set of 3‐thiazolocoumarinyl Schiff‐base derivatives with chlorine, hydroxy and methoxy functional group substitutions were designed and synthesized. These compounds were tested against acetylcholinesterase from Electrophorus electricus and butyrylcholinesterase from horse serum and their structure–activity relationship was established. Studies revealed them as the potential inhibitors of cholinesterase (acetylcholinesterase and butyrylcholinesterase). The 3f was found to be most potent against acetylcholinesterase with Ki value of 1.05 ± 0.3 μm and 3l showed excellent inhibitory action against butyrylcholinesterase with Ki value of 0.041 ± 0.002 μm. The synthesized compounds were also docked into the active sites of the homology models of acetylcholinesterase and butyrylcholinesterase to predict the binding modes of these compounds. It was predicted that most of the compounds have similar binding modes with reasonable binding affinities. Our docking studies have also shown that these synthesized compounds have better interaction patterns with butyrylcholinesterase over acetylcholinesterase. The main objective of the study was to develop new potent and selective compounds, which might be further optimized to prevent the progression of the Alzheimer’s disease and could provide symptomatic treatment.