2,3-二甲基苯并噻唑鎓对甲苯磺酸盐 | 2654-52-6

• 物质功能分类: 化学试剂 - 有机试剂
• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 2,3-二甲基苯并噻唑鎓对甲苯磺酸盐
• 中文别名: 2,3-二甲基苯并噻唑对甲苯磺酸盐
• 英文名称: 2,3-dimethylbenzothiazolium toluene-4-sulfonate
• 英文别名: 2,3-dimethylbenzo[d]thiazol-3-ium 4-methylbenzenesulfonate；2,3-Dimethyl-benzothiazolium-p-tosylat；2,3-dimethylbenzothiazolium p-toluenesulfonate；2,3-dimethylbenzothiazolium tosylate；2,3-Dimethylbenzothiazolium p-toluenesulphonate；2,3-dimethyl-1,3-benzothiazol-3-ium;4-methylbenzenesulfonate
• CAS: 2654-52-6
• 化学式: C₇H₇O₃S*C₉H₁₀NS
• 分子量: 335.448
• InChiKey: GYHJFWZSCIYJKD-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  2.93
• 重原子数：
  22
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.19
• 拓扑面积：
  97.7
• 氢给体数：
  0
• 氢受体数：
  4

安全信息

• 海关编码：
  2934999090

反应信息

• 作为反应物：
  描述：

  2,3-二甲基苯并噻唑鎓对甲苯磺酸盐 在 1,1,2,3-四甲基胍 、 sodium hydride 作用下， 以 Petroleum ether 为溶剂， 生成 2,3-二氢-3-甲基-2-亚甲基苯并噻唑
  参考文献：
  名称：

  分离自苯并噻唑鎓季盐的单体亚甲基碱

  摘要：

  DOI：

  10.1016/s0040-4039(01)88249-6
• 作为产物：
  描述：

  2-氨基苯硫醇 在 硫酸 作用下， 以 乙腈 为溶剂， 反应 3.0h， 生成 2,3-二甲基苯并噻唑鎓对甲苯磺酸盐
  参考文献：
  名称：

  氟化若丹菁类似物的合成和抗衰老活性：“氟步移”分析。

  摘要：

  为了寻找有效的抗衰老药物候选物，合成了十八个在不同位置带有氟或全氟烷基取代基的若丹菁类似物。测试了这些化合物对利什曼原虫马提尼丘菌和东方乳杆菌的抑制活性。该“氟游走”分析表明，在苯并噻唑单元的C-5、6、5'或6'处引入氟原子可显着增强活性，这与氟化类似物的负还原电位较小有关经电化学研究证实。另一方面，发现CF 3和OCF 3基团具有有害作用，这与通过计算机模拟ADMET分析预测的较差的水溶性相吻合。此外，

  DOI：

  10.1016/j.bmc.2019.115187

文献信息

• Controlling parameters for radical cation fragmentation reactions: Origin of the intrinsic barrier
  作者：Deepak Shukla、Guanghua Liu、Joseph P Dinnocenzo、Samir Farid

  DOI：10.1139/v03-078

  日期：2003.6.1

  C—C bond cleavages of radical cations of 2-substituted benzothiazoline derivatives were investigated to determine the parameters controlling the fragmentation rate constants. In spite of the low oxidation potentials of the compounds, fragmentation rate constants greater than 1 × 10⁶ s^–1 could be achieved through weakening of the fragmenting bond by substituents that stabilize the radical fragment and exert steric crowding. A quantitative assessment of the relative roles of radical stabilization vs. steric effects to weaken the fragmenting C—C bond was achieved through DFT calculations. The calculated activation enthalpies matched reasonably well with the experimentally determined values. A thermokinetic analysis revealed that the fragmentations of benzothiazoline radical cations have relatively large intrinsic kinetic barriers, ascribed to the delocalized nature of the product radical and cation fragments. Interestingly, the same factors that lead to the large intrinsic barriers led, simultaneously, to large thermodynamic driving forces for the fragmentations, which should lead to lower activation barriers. These effects oppose each other kinetically and provide important insight into the design of fast radical ion fragmentation reactions.Key words: benzothiazoline, radical cation, fragmentation, steric effects, DFT.

  2-取代苯并噻唑啉衍生物的自由基阳离子的C-C键裂解进行了研究，以确定控制裂解速率常数的参数。尽管化合物的氧化电位较低，但通过通过取代基使裂解键变弱，从而稳定自由基片段并施加立体阻碍，可以实现大于1×10^6 s^-1的裂解速率常数。通过密度泛函理论（DFT）计算，对自由基稳定与立体效应相对作用于使裂解的C-C键变弱的定量评估取得了成功。计算得到的活化焓与实验测定值相当吻合。热动力学分析显示，苯并噻唑啉自由基阳离子的裂解具有相对较大的固有动力学壁垒，归因于产物自由基和阳离子片段的离域性质。有趣的是，导致大固有壁垒的因素同时导致了裂解的大热力学驱动力，这应该导致较低的活化壁垒。这些效应在动力学上相互对立，并为设计快速自由基离子裂解反应提供了重要见解。关键词：苯并噻唑啉，自由基阳离子，裂解，立体效应，DFT。
• Synthesis of three classes of rhodacyanine dyes and evaluation of their in vitro and in vivo antimalarial activity
  作者：Khanitha Pudhom、Kazuki Kasai、Hiroki Terauchi、Hiroshi Inoue、Marcel Kaiser、Reto Brun、Masataka Ihara、Kiyosei Takasu

  DOI：10.1016/j.bmc.2006.08.035

  日期：2006.12

  0]-rhodacyanines, were synthesized and their in vitro antimalarial activities against Plasmodium falciparum K1 (chloroquine-resistant strain) as well as their in vivo activities against P. berghei in mice were determined. The novel [0,0,0]-rhodacynines, 3e and 3h, possessing a benzothiazole moiety, were shown to have highly promising antimalarial activities in vivo. Moreover, the [0,0,0]-rhodacyanines were found

  合成了三类罗丹菁染料[0,0]-，[1,0]-和[0,0,0]-罗丹菁的选定成员，它们对恶性疟原虫K1具有体外抗疟活性（对氯喹有抗性）确定了它们在小鼠中的抗性以及它们对伯氏疟原虫的体内活性。具有苯并噻唑部分的新型[0,0,0]-罗丹嘧啶3e和3h已显示出在体内具有非常有前途的抗疟活性。此外，发现[0,0,0]-罗丹菁是口服生物利用度的。
• A light controlled, reversible, sensitive and highly selective colorimetric sensor for mercuric ions in water
  作者：Arvind Kumar、Ajeet Kumar、Priya Ranjan Sahoo、Satish Kumar

  DOI：10.1016/j.molstruc.2020.127702

  日期：2020.4

  addition of mercuric ions led to the disruption of the molecular chains through complex formation between mercuric ions and the merocyanine form, which produced a change in color visible to the naked eye. The molecule displayed no change in color upon addition of other metal ions. The change in color was used for the detection of mercuric ions. The interaction between the dye molecule and the mercuric ion

  摘要 合成了一种对甲苯磺酸盐的部花青染料，并使用光谱技术对其进行了表征。通过单晶 X 射线晶体学建立的结构显示存在通过水分子和对甲苯磺酸基团连接的染料分子的广泛 H 键网络。晶体浏览器程序用于估计分子链网络中不同分子间相互作用的贡献。汞离子的添加​​通过汞离子和部花青形式之间的复合物形成导致分子链的破坏，从而产生肉眼可见的颜色变化。添加其他金属离子后，该分子没有显示颜色变化。颜色的变化用于检测汞离子。使用紫外-可见光、DLS 和 1H NMR 光谱进一步研究了染料分子和汞离子之间的相互作用。部花青染料和汞离子之间的相互作用可以被紫外线 (365 nm) 可逆地破坏。使用密度泛函理论进一步研究了汞离子和部花青染料之间的相互作用，以证实实验数据。TD-DFT 研究表明添加汞离子后 HOMO-LUMO 间隙增加。
• Luminous Compound Containing Lanthanide Ion
  申请人：Nakamura Koki

  公开号：US20090247736A1

  公开（公告）日：2009-10-01

  A luminous compound represented by the following formula (I): Met-COG-ChHet  Formula (I) wherein Met represents a group containing a lanthanide ion, COG represents a heterocyclic group bonded directly to the lanthanide ion contained in the group represented by Met, and ChHet represents a group having a heterocycle, where ChHet is preferably a group that conjugates with COG.

  一种由以下化学式（I）表示的发光化合物：Met-COG-ChHet  化学式（I）其中，Met代表含有镧系离子的基团，COG代表直接连接到Met所代表的基团中含有的镧系离子的杂环基团，ChHet代表具有杂环的基团，其中ChHet最好是与COG共轭的基团。
• Development of Novel Rhodacyanine-Based Heat Shock Protein 70 Inhibitors
  作者：Chih-Shiang Chang、Vathan Kumar、Der-Yen Lee、Yeh Chen、Yu-Chieh Wu、Jing-Yan Gao、Po-Chen Chu

  DOI：10.2174/0929867328666210203204254

  日期：2021.9.8

  A growing body of evidence suggests that Hsp70, which is overexpressed in human breast tumors, plays a role in tumorigenesis and tumor progression in breast cancer as well as in its aggressive phenotypes. Hsp70 constitutes a potential therapeutic target in the treatment of this disease.

  We developed a new series of rhodacyanine-based Hsp70 inhibitors, represented by compounds 1 and 6, in which the cationic pyridin-1-ium or thiazol-3-ium ring of existing Hsp70 inhibitors (e.g., JG-40 and JG-98) was replaced by a corresponding benzo- fused N-heterocycle.

  Several lines of evidence suggest that these benzo-fused derivatives may exert their antitumor activities, in part, by targeting Hsp70. These putative inhibitors displayed differential antiproliferative efficacy against breast cancer cells (IC₅₀ as low as 0.25 μM) versus nontumorigenic MCF-10A breast epithelial cells (IC₅₀ ≥ 5 μM). This was correlated with the corresponding Hsp70 expression levels. Using a protein refolding assay, we confirmed that these agents effectively inhibited the chaperone activity of Hsp70. Moreover, these inhibitors effectively suppressed the expression of well-known oncogenic client proteins of Hsp70’s, including FoxM1, HuR, and Akt, which paralleled their antiproliferative efficacy. Supporting the established role of Hsp70 in regulating protein refolding, these derivatives induced autophagy, as manifested by the conversion of LC3B-I to LC3B-II. Notably, these putative Hsp70 inhibitors did not cause a compensatory elevation in Hsp90 expression, contrasting with the previously reported effects of Hsp90 inhibitors on Hsp70 upregulation.

  Together with the finding that compounds 1 and 6 showed improved microsomal stability, these results suggest the translational potential of these putative Hsp70 inhibitors to foster new strategies for cancer therapy. However, whether these benzo-fused rhodacyanines act on kinases or other targets remains unclear. It is currently under investigation.

  背景：越来越多的证据表明，在人类乳腺肿瘤中过度表达的Hsp70在乳腺癌的肿瘤发生和进展以及其侵袭性表型中发挥作用。Hsp70构成了治疗该疾病的潜在治疗靶点。 方法：我们开发了一系列基于罗达氰基的Hsp70抑制剂，代表物为化合物1和6，其中现有Hsp70抑制剂（例如JG-40和JG-98）的阳离子吡啶-1-ium或噻唑-3-ium环被相应的苯并N-杂环取代。 结果：多条证据表明，这些苯并融合衍生物可能部分通过靶向Hsp70发挥其抗肿瘤活性。这些假定的抑制剂对乳腺癌细胞显示出不同的抗增殖效力（IC50低至0.25μM），而对非肿瘤性MCF-10A乳腺上皮细胞的IC50≥5μM。这与相应的Hsp70表达水平相关。通过蛋白质重折叠实验，我们确认这些药物有效地抑制了Hsp70的分子伴侣活性。此外，这些抑制剂有效地抑制了Hsp70的已知致癌客体蛋白，包括FoxM1、HuR和Akt的表达，这与它们的抗增殖效力相一致。支持Hsp70在调节蛋白质重折叠中的已知作用，这些衍生物诱导了自噬，表现为LC3B-I向LC3B-II的转化。值得注意的是，这些假定的Hsp70抑制剂不会引起Hsp90表达的补偿性升高，与先前报道的Hsp90抑制剂对Hsp70上调的效应形成对比。 结论：与化合物1和6显示出改善的微粒体稳定性的发现一起，这些结果表明这些假定的Hsp70抑制剂在促进癌症治疗新策略方面具有转化潜力。然而，这些苯并融合罗达氰是否作用于激酶或其他靶点仍不清楚，目前正在进行研究。