2-(4'-nitrophenyl)-6-methoxymethoxybenzothiazole | 566170-02-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并噻唑类
• 英文名称: 2-(4'-nitrophenyl)-6-methoxymethoxybenzothiazole
• 英文别名: 6-methoxymethoxy-2-(4'-nitrophenyl)-1,3-benzothiazole；6-(Methoxymethoxy)-2-(4-nitrophenyl)-1,3-benzothiazole
• CAS: 566170-02-3
• 化学式: C₁₅H₁₂N₂O₄S
• 分子量: 316.337
• InChiKey: GTQKCVCAVKEWGL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4
• 重原子数：
  22
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.13
• 拓扑面积：
  105
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  2-(4'-nitrophenyl)-6-methoxymethoxybenzothiazole 在 sodium tetrahydroborate 、 copper diacetate 作用下， 以 乙醇 为溶剂， 反应 1.0h， 以93%的产率得到2-(4′-aminophenyl)-6-methoxymethoxybenzothiazole
  参考文献：
  名称：

  Synthesis and Evaluation of ¹¹C-Labeled 6-Substituted 2-Arylbenzothiazoles as Amyloid Imaging Agents

  摘要：

  The synthesis and evaluation of a series of neutral analogues of thioflavin-T (termed BTA's) with high affinities for aggregated amyloid and a wide range of lipophilicities are reported. Radiolabeling with high specific activity [C-11]methyl iodide provided derivatives for in vivo evaluation. Brain entry in control mice and baboons was high for nearly all of the analogues at early times after injection, but the clearance rate of radioactivity from brain tissue varied by more than 1 order of magnitude. Upon the basis of its rapid clearance from normal mouse and baboon brain tissues, [N-methyl-C-11]2-(4'-methylaminophenyl)-6-hydroxybenzothiazole (or [C-11]6-OH-BTA-1) was selected as the lead compound for further evaluation. The radiolabeled metabolites of [C-11]6-OH-BTA-1 were polar and did not enter brain. The binding affinities of [N-methyl-H-3]6-OH-BTA-1 for homogenates of postmortem AD frontal cortex and synthetic Abeta(1-40) fibrils, were similar (K-d = 1.4 nM and 4.7 nM, respectively), but the ligand-to-Abeta peptide binding stoichiometry was similar to400-fold higher for AD brain than Abeta(1-40) fibrils. Staining of AD frontal cortex tissue sections with 6-OH-BTA-1 indicated the selective binding of the compound to amyloid plaques and cerebrovascular amyloid. The encouraging in vitro and in vivo properties of [C-11]6-OH-BTA-1 support the choice of this derivative for further evaluation in human subject studies of brain Abeta deposition.

  DOI：

  10.1021/jm030026b
• 作为产物：
  描述：

  6-甲氧基-2-(4-硝基苯基)苯并噻唑 在 三溴化硼 、 potassium carbonate 作用下， 以 二氯甲烷 、 丙酮 为溶剂， 反应 24.0h， 生成 2-(4'-nitrophenyl)-6-methoxymethoxybenzothiazole
  参考文献：
  名称：

  Synthesis and Evaluation of ¹¹C-Labeled 6-Substituted 2-Arylbenzothiazoles as Amyloid Imaging Agents

  摘要：

  The synthesis and evaluation of a series of neutral analogues of thioflavin-T (termed BTA's) with high affinities for aggregated amyloid and a wide range of lipophilicities are reported. Radiolabeling with high specific activity [C-11]methyl iodide provided derivatives for in vivo evaluation. Brain entry in control mice and baboons was high for nearly all of the analogues at early times after injection, but the clearance rate of radioactivity from brain tissue varied by more than 1 order of magnitude. Upon the basis of its rapid clearance from normal mouse and baboon brain tissues, [N-methyl-C-11]2-(4'-methylaminophenyl)-6-hydroxybenzothiazole (or [C-11]6-OH-BTA-1) was selected as the lead compound for further evaluation. The radiolabeled metabolites of [C-11]6-OH-BTA-1 were polar and did not enter brain. The binding affinities of [N-methyl-H-3]6-OH-BTA-1 for homogenates of postmortem AD frontal cortex and synthetic Abeta(1-40) fibrils, were similar (K-d = 1.4 nM and 4.7 nM, respectively), but the ligand-to-Abeta peptide binding stoichiometry was similar to400-fold higher for AD brain than Abeta(1-40) fibrils. Staining of AD frontal cortex tissue sections with 6-OH-BTA-1 indicated the selective binding of the compound to amyloid plaques and cerebrovascular amyloid. The encouraging in vitro and in vivo properties of [C-11]6-OH-BTA-1 support the choice of this derivative for further evaluation in human subject studies of brain Abeta deposition.

  DOI：

  10.1021/jm030026b

文献信息

• Synthesis and Evaluation of ¹⁸F-Labeled 2-Phenylbenzothiazoles as Positron Emission Tomography Imaging Agents for Amyloid Plaques in Alzheimer’s Disease
  作者：Kim Serdons、Christelle Terwinghe、Peter Vermaelen、Koen Van Laere、Hank Kung、Luc Mortelmans、Guy Bormans、Alfons Verbruggen

  DOI：10.1021/jm8013376

  日期：2009.3.12

  Imaging agents targeting amyloid beta(A beta) may be useful for early diagnosis and follow-up of treatment of patients with Alzheimer's disease (AD). Three of five tested 2-(4'-fluorophenyl)-1,3-benzothiazoles displayed high binding affinities for A beta plaques in AD human brain homogenates (K-i between 2.2 and 22.5 nM). They all contained the F-18-label directly attached to the aromatic ring and were synthesized starting from the nitro precursor. Determination of the partition coefficient, biodistribution studies in normal mice, and in vivo mu PET studies in normal rats showed that their initial brain uptake was high and brain washout was fast. The most promising compound [F-18]5, or 6- methyl-2-(4'-[F-18]fluorophenyl)-1,3-benzothiazole, seemed to be metabolically stable in the brain, and its plasma radiometabolites, which do not cross the blood-brain barrier, were determined. The preliminary results strongly suggest that this new fluorinated compound is a promising candidate as an A beta plaque imaging agent for the study of patients with AD.
• Synthesis and Evaluation of ¹¹C-Labeled 6-Substituted 2-Arylbenzothiazoles as Amyloid Imaging Agents
  作者：Chester A. Mathis、Yanming Wang、Daniel P. Holt、Guo-Feng Huang、Manik L. Debnath、William E. Klunk

  DOI：10.1021/jm030026b

  日期：2003.6.1

  The synthesis and evaluation of a series of neutral analogues of thioflavin-T (termed BTA's) with high affinities for aggregated amyloid and a wide range of lipophilicities are reported. Radiolabeling with high specific activity [C-11]methyl iodide provided derivatives for in vivo evaluation. Brain entry in control mice and baboons was high for nearly all of the analogues at early times after injection, but the clearance rate of radioactivity from brain tissue varied by more than 1 order of magnitude. Upon the basis of its rapid clearance from normal mouse and baboon brain tissues, [N-methyl-C-11]2-(4'-methylaminophenyl)-6-hydroxybenzothiazole (or [C-11]6-OH-BTA-1) was selected as the lead compound for further evaluation. The radiolabeled metabolites of [C-11]6-OH-BTA-1 were polar and did not enter brain. The binding affinities of [N-methyl-H-3]6-OH-BTA-1 for homogenates of postmortem AD frontal cortex and synthetic Abeta(1-40) fibrils, were similar (K-d = 1.4 nM and 4.7 nM, respectively), but the ligand-to-Abeta peptide binding stoichiometry was similar to400-fold higher for AD brain than Abeta(1-40) fibrils. Staining of AD frontal cortex tissue sections with 6-OH-BTA-1 indicated the selective binding of the compound to amyloid plaques and cerebrovascular amyloid. The encouraging in vitro and in vivo properties of [C-11]6-OH-BTA-1 support the choice of this derivative for further evaluation in human subject studies of brain Abeta deposition.