6-甲氧基-2-(甲硫基)-1,3-苯并噻唑 | 2182-74-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并噻唑类
• 中文名称: 6-甲氧基-2-(甲硫基)-1,3-苯并噻唑
• 英文名称: 6-methoxy-2-(methylthio)benzo[d]thiazole
• 英文别名: 6-methoxy-2-methylsulfanyl-1,3-benzothiazole
• CAS: 2182-74-3
• 化学式: C₉H₉NOS₂
• 分子量: 211.309
• InChiKey: BAVPPRHBRBTVAS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  13
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.22
• 拓扑面积：
  75.7
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  6-甲氧基-2-(甲硫基)-1,3-苯并噻唑 在 碘 作用下， 生成 6-methoxy-3-methylbenzo[d]thiazole-2(3H)-thione
  参考文献：
  名称：

  Reed et al., Journal of the Chemical Society, 1939, p. 473,475

  摘要：

  DOI：
• 作为产物：
  描述：

  2-氯-4-甲氧基苯胺 在 三乙胺 作用下， 以 乙醇 、 N,N-二甲基甲酰胺 为溶剂， 反应 5.0h， 生成 6-甲氧基-2-(甲硫基)-1,3-苯并噻唑
  参考文献：
  名称：

  Analogues of the Allosteric Heat Shock Protein 70 (Hsp70) Inhibitor, MKT-077, As Anti-Cancer Agents

  摘要：

  The rhodacyanine, MKT-077, has antiproliferative activity against cancer cell lines through its ability to inhibit members of the heat shock protein 70 (Hsp70) family of molecular chaperones. However, MKT-077 is rapidly metabolized, which limits its use as either a chemical probe or potential therapeutic. We report the synthesis and characterization of MKT-077 analogues designed for greater stability. The most potent molecules, such as 30 (JG-98), were at least 3-fold more active than MKT-077 against the breast cancer cell lines MDA-MB-231 and MCF-7 (EC50 values of 0.4 +/- 0.03 and 0.7 +/- 0.2 mu M, respectively). The analogues modestly destabilized the chaperone clients, Aka and Raf1, and induced apoptosis in these cells. Further, the microsomal half-life of JG-98 was improved at least 7-fold (t(1/2) = 37 min) compared to MKT-077 (t(1/2) < 5 min). Finally, NMR titration experiments suggested that these analogues bind an allosteric site that is known to accommodate MKT-077. These studies advance MKT-077 analogues as chemical probes for studying Hsp70s roles in cancer.

  DOI：

  10.1021/ml400204n

文献信息

• Exploration of Benzothiazole Rhodacyanines as Allosteric Inhibitors of Protein–Protein Interactions with Heat Shock Protein 70 (Hsp70)
  作者：Hao Shao、Xiaokai Li、Michael A. Moses、Luke A. Gilbert、Chakrapani Kalyanaraman、Zapporah T. Young、Margarita Chernova、Sara N. Journey、Jonathan S. Weissman、Byron Hann、Matthew P. Jacobson、Len Neckers、Jason E. Gestwicki

  DOI：10.1021/acs.jmedchem.8b00583

  日期：2018.7.26

  Cancer cells rely on the chaperone heat shock protein 70 (Hsp70) for survival and proliferation. Recently, benzothiazole rhodacyanines have been shown to bind an allosteric site on Hsp70, interrupting its binding to nucleotide-exchange factors (NEFs) and promoting cell death in breast cancer cell lines. However, proof-of-concept molecules, such as JG-98, have relatively modest potency (EC50 ≈ 0.7–0

  癌细胞依靠伴侣热休克蛋白 70 (Hsp70) 来生存和增殖。最近，苯并噻唑罗丹青素已被证明与 Hsp70 上的变构位点结合，中断其与核苷酸交换因子 (NEF) 的结合并促进乳腺癌细胞系中的细胞死亡。然而，概念验证分子，如 JG-98，具有相对适中的效力（EC 50 ≈ 0.7–0.4 μM），并且在动物中迅速代谢。在这里，我们通过~300 种类似物的基于结构和特性的设计探索了这个化学系列，表明最有效的 EC 50提高了 10 倍以上值（~0.05 至 0.03 μM）对抗两种乳腺癌细胞。生物标志物和全基因组 CRISPRi 筛选证实 Hsp70 家族的成员是细胞靶点。基于这些结果，发现 JG-231 可减少 MDA-MB-231 异种移植模型（4 mg/kg，腹腔注射）中的肿瘤负荷。总之，这些研究支持 Hsp70 可能是抗癌治疗的有希望的靶点的假设。
• Tunable Heteroaromatic Sulfones Enhance in-Cell Cysteine Profiling
  作者：Hashim F. Motiwala、Yu-Hsuan Kuo、Brittany L. Stinger、Bruce A. Palfey、Brent R. Martin

  DOI：10.1021/jacs.9b08831

  日期：2020.1.29

  offer advantages over existing cysteine alkylation reagents, including accelerated reaction rates, improved stability, and robust ionization for mass spectrometry applications. Overall, heteroaromatic sulfones provide modular tunability, shifted chromatographic elution times, and superior in-cell cysteine profiling for in-depth proteome-wide analysis and covalent ligand discovery.

  杂芳族砜通过亲核芳香取代与半胱氨酸反应，为半胱氨酸缀合提供机械选择性和不可逆支架。在这里，我们评估了具有不同氧化态、杂原子取代和一系列给电子和吸电子取代基的杂芳族硫化物库。与传统的半胱氨酸偶联试剂相比，选择取代对反应性和稳定性产生了深远的影响，将反应速率提高了 > 3 个数量级。研究结果建立了一系列可合成的可跨多个可调中心可调的亲电支架。新的亲电子试剂及其相应的炔烃偶联物直接在培养的细胞中进行分析，在几分钟内以亚毫摩尔浓度实现硫醇饱和。将脱硫生物素功能化探针直接添加到培养细胞中简化了富集和洗脱，从而能够在标准分析时间的一小部分内通过质谱发现在其天然细胞环境中标记的 >3000 个反应性和/或可接近的硫醇。令人惊讶的是，在重复实验中，只有 1/2 的注释半胱氨酸被碘乙酰胺-脱硫生物素和甲基磺酰基苯并噻唑-脱硫生物素鉴定，证明了质谱分析的互补检测。与现有的半胱氨酸烷基化试剂相比，这些探针具有优
• Easy S-Alkylation of Arylthioureas and 2-Mercaptobenzothiazoles Using Tetraalkylammonium Salts under Transition-Metal-Free Conditions
  作者：Xiao-Hu Xu、Er-Jun Hao、Zhen Shi、Zhi-Bing Dong

  DOI：10.1021/acs.joc.2c00728

  日期：2022.8.5

  A highly-efficient and practical method for S-alkylation of arylthioureas was reported. Using tetraalkylammonium salts as alkylation reagents, a series of 68 S-substituted aryl-isothioureas were obtained in good to excellent yields under transition-metal-free conditions. The protocol features simple performance, broad functional group tolerance, good to excellent yields, and easily available starting

  报道了一种高效实用的芳基硫脲S-烷基化方法。使用四烷基铵盐作为烷基化试剂，在无过渡金属条件下以良好至优异的收率获得了一系列 68 S-取代的芳基异硫脲。该协议具有简单的性能、广泛的官能团耐受性、良好的产量以及易于获得的起始材料，显示出制备多种生物或药物活性化合物的潜在合成价值。
• Photocatalyzed hydroxyalkylation of <i>N</i>-heteroaromatics with aldehydes in the aqueous phase
  作者：Jun Xu、Li Liu、Zhao-Cheng Yan、Yang Liu、Long Qin、Ning Deng、Hua-Jian Xu

  DOI：10.1039/d3gc00162h

  日期：——

  Hydroxyalkylated N-heteroaromatics are interesting scaffolds in a wide range of biologically active natural molecules. Herein, a photoredox-catalyzed hydroxyalkylation method for azole derivatives with aldehydes in the aqueous phase under an air atmosphere has been established. Furthermore, our catalytic system is also suitable for the alkylation of azole derivatives with alkanes. This methodology

  羟烷基化N -杂芳烃是广泛的生物活性天然分子中有趣的支架。在此，建立了一种光氧化还原催化的唑衍生物在空气气氛下在水相中与醛的羟烷基化方法。此外，我们的催化体系也适用于唑类衍生物与烷烃的烷基化反应。该方法具有生态友好、无需外加、官能团相容性好等特点。
• Ambient Temperature Metal‐Free Thiomethylation of Chloroheteroarenes and Chloropurines
  作者：Manisha Patel、Ra K Vora、Yogesh S Sanghvi、anant kapdi

  DOI：10.1002/asia.202400114

  日期：——

  Herein, we report an in-situ mild and metal-free protocol for thiomethylation of heteroarenes in high yields. The thiomethylation of various chloropurines, nucleosides, and chloroheteroarenes has been accomplished offering easy access to agrochemicals and synthetic molecules useful for drug discovery.

  在此，我们报告了一种原位温和且无金属的杂芳烃硫代甲基化方案，收率高。各种氯嘌呤、核苷和氯杂芳烃的硫甲基化已经完成，可以轻松获得可用于药物发现的农用化学品和合成分子。