5-methoxy-2-(4-nitrophenyl)-1,3-benzothiazole | 162374-46-1

• 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: 5-methoxy-2-(4-nitrophenyl)-1,3-benzothiazole
• CAS: 162374-46-1
• 化学式: C₁₄H₁₀N₂O₃S
• 分子量: 286.311
• InChiKey: ROTPSUZTVZFZBS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.1
• 重原子数：
  20
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.07
• 拓扑面积：
  96.2
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  5-methoxy-2-(4-nitrophenyl)-1,3-benzothiazole 在 一氯化碘 、 溶剂黄146 、 tin(ll) chloride 作用下， 以 乙醇 为溶剂， 反应 6.0h， 生成 2-(4-amino-3-iodophenyl)-5-methoxybenzothiazole
  参考文献：
  名称：

  Antitumor Benzothiazoles. 8. Synthesis, Metabolic Formation, and Biological Properties of the C- and N-Oxidation Products of Antitumor 2-(4-Aminophenyl)benzothiazoles

  摘要：

  2-(4-Aminophenyl)benzothiazoles 1 and their N-acetylated forms have been converted to C- and N-hydroxylated derivatives to investigate the role of metabolic oxidation in the mode of action of this series of compounds. 2-(4-Amino-3-methylphenyl)benzothiazole (1a, DF 203, NSC 674495) is a novel and potent antitumor agent with selective growth inhibitory properties against human cancer cell lines. Very low IC50 values (<0.1 mu M) were encountered in the most sensitive breast cancer cell lines, MCF-7 and T-47D, whereas renal cell line TK-10 was weakly inhibited by la. Cell lines from the same tissue origin, MDA-MB-435 (breast), CAKI-1 (renal), and A498 (renal), were insensitive to 1a. Accumulation and metabolism of la were observed in sensitive cell lines only, with the highest rate of metabolism occurring in the most sensitive MCF-7 and T-47D cells. Thus, differential uptake and metabolism of 1a by cancer cell lines may underlie its selective profile of anticancer activity. A major metabolite in these sensitive cell lines has been identified as 2-(4-amino-3-methylphenyl)-6-hydroxybenzothiazole (6c). Hydroxylation of 1a was not detected in the homogenate of previously untreated MCF-7, T-47D, and TK-10 cells but was readily observed in homogenates of sensitive cells that were pretreated with 1a. Accumulation and covalent binding of [C-14]1a derived radioactivity was observed in the sensitive MCF-7 cell line but not in the insensitive MDA-MB-435 cell line. The mechanism of growth inhibition by 1a, which is unknown, may be dependent on the differential metabolism of the drug to an activated form by sensitive cell Lines only and its covalent binding to an intracellular protein. However, the 6-hydroxy derivative 6c is not the 'active' metabolite since, like all other C- and N-hydroxylated benzothiazoles examined in this study, it is devoid of antitumor properties in vitro.

  DOI：

  10.1021/jm990104o
• 作为产物：
  描述：

  N-(3-methoxyphenyl)-4-nitrobenzamide 在 劳森试剂 、 sodium hydroxide 、 potassium hexacyanoferrate(III) 作用下， 以 六甲基磷酰三胺 为溶剂， 生成 5-methoxy-2-(4-nitrophenyl)-1,3-benzothiazole
  参考文献：
  名称：

  Metabolically Stabilized Benzothiazoles for Imaging of Amyloid Plaques

  摘要：

  Six new N-C-11-labeled aminophenylbenzothiazoles substituted with fluorine in different positions have been synthesized and evaluated as amyloid-beta binding ligands. Our structure-property relationship studies show that the substitution pattern of the phenyl ring and the benzothiazole moiety has an influence on the metabolic stability, which in turn has an effect on the brain uptake kinetics. Two lead compounds have been identified with improved physicochemical characteristics for A beta-plaque imaging in vivo.

  DOI：

  10.1021/jm061466g

文献信息

• LIGANDS FOR AGGREGATED TAU MOLECULES
  申请人：Kemp Steven John

  公开号：US20110171739A1

  公开（公告）日：2011-07-14

  Provided are certain benzothiazole, imidazothiazole, imidazopyrimidine and imidazopyridine compounds, including, for example: formula (I) and pharmaceutically and physiologically acceptable salts, hydrates, and solvates thereof. Such compounds can be used as diagnostic ligands or labels of tau protein and PHF.

  提供了某些苯并噻唑、咪唑噻唑、咪唑嘧啶和咪唑吡啶化合物，包括例如：式（I）和其药学和生理学上可接受的盐、水合物和溶剂化物。这些化合物可用作tau蛋白和PHF的诊断配体或标记。
• 11C-labelled PIB analogues as potential tracer agents for in vivo imaging of amyloid β in Alzheimer's disease
  作者：K. Serdons、T. Verduyckt、D. Vanderghinste、P. Borghgraef、J. Cleynhens、F. Van Leuven、H. Kung、G. Bormans、A. Verbruggen

  DOI：10.1016/j.ejmech.2008.09.038

  日期：2009.4

  Pittsburgh Compound-B (PIB) is currently being evaluated clinically for in vivo visualization of amyloid plaques in patients with Alzheimer's disease (AD). We have synthesized three structural isomers of 6-hydroxy-2-(4'-aminophenyl)-1,3-benzothiazole, performed radiolabelling with carbon-11 and investigated their in vivo and in vitro properties. Specific binding to amyloid plaques was demonstrated in vitro using post-mortem brain homogenates of AD patients, transgenic AD mice brain sections and postmortem human AD brain sections. In normal mice, initial brain uptake (at 2 min p.i.) was high and was followed by a fast wash-out. The three structural analogues have a high potential as tracer agents for in vivo visualization of amyloid plaques in AD patients. (C) 2008 Elsevier Masson SAS. All rights reserved.
• Ligands for aggregated tau molecules
  申请人：WisTa Laboratories Ltd.

  公开号：EP2338059B1

  公开（公告）日：2015-04-08
• US8895313B2
  申请人：——

  公开号：US8895313B2

  公开（公告）日：2014-11-25
• [EN] LIGANDS FOR AGGREGATED TAU MOLECULES<br/>[FR] LIGANDS POUR MOLÉCULES DE LA PROTÉINE TAU AGGLOMÉRÉES
  申请人：WISTA LAB LTD

  公开号：WO2010034982A1

  公开（公告）日：2010-04-01

  Provided are certain benzothiazole, imidazothiazole, imidazopyrimidine and imidazopyridine compounds, including, for example:formula (I) and pharmaceutically and physiologically acceptable salts, hydrates, and solvates thereof. Such compounds can be used as diagnostic ligands or labels of tau protein and PHF.