Category: 92-36-4

On June 6, 2013, Ali-Torres, Jorge; Rimola, Albert; Rodriguez-Rodriguez, Cristina; Rodriguez-Santiago, Luis; Sodupe, Mariona published an article.Name: 2-(4-Aminophenyl)-6-methylbenzothiazole The title of the article was Insights on the Binding of Thioflavin Derivative Markers to Amyloid-Like Fibril Models from Quantum Chemical Calculations. And the article contained the following:

Thioflavin-T (ThT) is one of the most widely used dyes for staining and identifying amyloid fibrils, which share a common parallel in register β-sheet structure. Unfortunately, ThT is a charged mol., which limits its ability to cross the blood brain barrier and its use as an efficient dye for in vivo detection of amyloid fibrils. For this reason, several uncharged ThT derivatives have been designed and their binding properties to Aβ fibrils studied by fluorescence assays. However, there are still many unknowns on the binding mechanism and the role of noncovalent interactions on the affinity of these ligands toward β-sheet structures. The present contribution analyzes the binding of ThT (1) and neutral ThT derivatives (2-7) to a β-sheet model by means of quantum chem. B3LYP-D calculations and including solvent effects with the continuum CPCM method. Results show that, in all cases, ligand binding is mainly driven by dispersion interactions. In addition, ligands with -NH groups display hydrogen bond interactions with CO groups of the peptide strand, increasing the intrinsic affinity toward the β-sheet surface. Solvent effects notably reduce the affinity of charged ThT, as compared to neutral systems, due to its larger solvation energy. As a result, neutral derivatives display significantly higher affinities than ThT in solution, in agreement with exptl. observations. Anal. of the hydrogen bonding network of the β-sheet structure indicates that stacking interactions upon ligand binding induce a shortening of interstrand hydrogen bonding, suggesting a strengthening of the β-sheet. The experimental process involved the reaction of 2-(4-Aminophenyl)-6-methylbenzothiazole(cas: 92-36-4).Name: 2-(4-Aminophenyl)-6-methylbenzothiazole

The Article related to thioflavin derivative amyloid fibril model quantum chem, General Biochemistry: Proteins and Their Constituents and other aspects.Name: 2-(4-Aminophenyl)-6-methylbenzothiazole

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

On July 31, 2006, Wu, Chunying; Cai, Lisheng; Wei, Jingjun; Pike, Victor W.; Wang, Yanming published an article.Quality Control of 2-(4-Aminophenyl)-6-methylbenzothiazole The title of the article was Lipophilic analogs of thioflavin S as novel amyloid-imaging agents. And the article contained the following:

Lipophilic analogs of thioflavin S were synthesized and radiolabeled with positron or single photon emitting radionuclides. The binding affinity for Aβ was evaluated using isolated amyloid fibrils from human brain tissue. Binding specificity was assessed using fluorescent tissue staining. In vivo brain uptake was evaluated in mice. Following synthesis, neutral analogs of thioflavin S capable of radiolabeling with 11C or 125I, were found to bind isolated human Aβ with affinities in the nanomolar range. Fluorescent tissue staining showed selective binding to Aβ deposits in vitro. Biodistribution of selected compounds displayed high brain permeability at early time points. At later points, the compounds were cleared from the normal brain, indicating low non-specific binding in vivo. These studies indicated that novel amyloid imaging probes can be developed based on thioflavin S that readily entered the brain and selectively bound to Aβ deposits and neurofibrilary tangles. Potential applications of these amyloid binding agents include facilitating drug screening in animal models and use as in vivo markers of early and definitive diagnosis of AD. The experimental process involved the reaction of 2-(4-Aminophenyl)-6-methylbenzothiazole(cas: 92-36-4).Quality Control of 2-(4-Aminophenyl)-6-methylbenzothiazole

The Article related to thioflavin s lipophilic analog amyloid imaging agent, Radiation Biochemistry: Disease Diagnosis and Therapy and other aspects.Quality Control of 2-(4-Aminophenyl)-6-methylbenzothiazole

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

On February 1, 2010, Law, K. P. published an article.Synthetic Route of 92-36-4 The title of the article was Surface-assisted laser desorption/ionization mass spectrometry on nanostructured silicon substrates prepared by iodine-assisted etching. And the article contained the following:

Surface-assisted laser desorption/ionization (SALDI) is a matrix-free mass spectrometry (MS) approach that utilizes the unique properties of a nanostructured surface to promote desorption and ionization. However, there are still questions on what constitutes a suitable SALDI substrate for mass spectrometric application. A range of SALDI substrates prepared by anodization with an oxidizing electrolyte was investigated. The laser desorption/ionization (LDI) performance was examined on a reflectron time-of-flight (ToF) mass spectrometer. The physicochem. properties of the substrates were characterized by a number of surface anal. techniques including SEM, at. force microscopy (AFM), secondary ion mass spectrometry (SIMS), XPS and water contact angle measurement. Examination of surface cleaning technologies and methods for surface chem. modification were carried out. Correlation between the substrate physicochem. properties and the LDI performance was determined It was found that only the substrate, which had a thick nanostructured layer, was effective for LDI-MS. SALDI substrate was found to have a high surface potential. However, this unique property offered no advantage for the application of LDI-MS. Surface chem. is also an important factor in affecting the LDI performance. Plasma etching can effectively remove the surface contamination but it also increases the thickness of the oxide layer. Fluorine and hydroxyl termination is advantageous. Fluorine passivation increases the surface hydrophobicity, which confines the analyte solution droplet to a smaller area and also withdraws the electronic d. from the surface, and acidifies the surface Si-OH moieties, which is believed a major proton source. The effect of laser etching was investigated by SIMS and XPS imaging and provided new insight of the SALDI ionization mechanism. The experimental process involved the reaction of 2-(4-Aminophenyl)-6-methylbenzothiazole(cas: 92-36-4).Synthetic Route of 92-36-4

The Article related to iodine assisted etching nanostructure silicon saldi mass spectrum, Surface Chemistry and Colloids: Solid-Liquid Systems and other aspects.Synthetic Route of 92-36-4

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

On August 1, 2020, Goya-Jorge, Elizabeth; Abdmouleh, Fatma; Carpio, Laureano E.; Giner, Rosa M.; Sylla-Iyarreta Veitia, Maite published an article.Computed Properties of 92-36-4 The title of the article was Discovery of 2-aryl and 2-pyridinylbenzothiazoles endowed with antimicrobial and aryl hydrocarbon receptor agonistic activities. And the article contained the following:

Benzothiazole is a privileged scaffold in medicinal chem. present in diverse bioactive compounds with multiple pharmacol. applications such as analgesic, anticonvulsant, antidiabetic, anti-inflammatory, anticancer and radioactive amyloidal imagining agents. We reported in this work the study of sixteen functionalized 2-aryl and 2-pyridinylbenzothiazoles as antimicrobial agents and as aryl hydrocarbon receptor (AhR) modulators. The antimicrobial activity against Gram-pos. (S. aureus and M. luteus) and Gram-neg. (P. aeruginosa, S. enterica and E. coli) pathogens yielded MIC ranging from 3.13 to 50μg/mL and against the yeast C. albicans, the benzothiazoles displayed MIC from 12.5 to 100μg/mL. All compounds showed promising antibiofilm activity against S. aureus and P. aeruginosa. The arylbenzothiazole 12 displayed the greatest biofilm eradication in S. aureus (74%) subsequently verified by fluorescence microscopy. The ability of benzothiazoles to modulate AhR expression was evaluated in a cell-based reporter gene assay. Six benzothiazoles (7, 8-10, 12, 13) induced a significant AhR-mediated transcription and interestingly compound 12 was also the strongest AhR-agonist identified. Structure-activity relationships are suggested herein for the AhR-agonism and antibiofilm activities. Furthermore, in silico predictions revealed a good ADMET profile and druglikeness for the arylbenzothiazole 12 as well as binding similarities to AhR compared with the endogenous agonist FICZ. The experimental process involved the reaction of 2-(4-Aminophenyl)-6-methylbenzothiazole(cas: 92-36-4).Computed Properties of 92-36-4

The Article related to aryl pyridinylbenzothiazole hydrocarbon receptor antimicrobial agonistic activity, agonism, ah receptor, antibacterial, antibiofilm, antifungal, benzothiazole, Pharmacology: Effects Of Antimicrobials and Parasiticides and other aspects.Computed Properties of 92-36-4

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

On February 24, 2015, Sheik, Daniel A.; Brooks, Lauren; Frantzen, Kristen; Dewhurst, Stephen; Yang, Jerry published an article.Quality Control of 2-(4-Aminophenyl)-6-methylbenzothiazole The title of the article was Inhibition of the Enhancement of Infection of Human Immunodeficiency Virus by Semen-Derived Enhancer of Virus Infection Using Amyloid-Targeting Polymeric Nanoparticles. And the article contained the following:

The semen-derived enhancer of virus infection (SEVI) is a natural amyloid material that has been shown to substantially increase viral attachment and infectivity of HIV in cells. The authors previously reported that synthetic monomeric and oligomeric amyloid-targeting mols. could form protein-resistive coatings on SEVI and inhibit SEVI- and semen-mediated enhancement of HIV infectivity. While oligomeric amyloid-binding compounds showed substantial improvement in apparent binding to SEVI compared to monomeric compounds, the authors observed only a modest correlation between apparent binding to SEVI and activity for reducing SEVI-mediated HIV infection. Here, the authors synthesized amyloid-binding polyacrylate-based polymers and polymeric nanoparticles of comparable size to HIV virus particles (∼150 nm) to assess the effect of sterics on the inhibition of SEVI-mediated enhancement of HIV infectivity. The authors show that these polymeric materials exhibit excellent capability to reduce SEVI-mediated enhancement of HIV infection, with the nanoparticles exhibiting the greatest activity (IC50 value of ∼4 μg/mL, or 59 nM based on polymer) of any SEVI-neutralizing agent reported to date. The results support that the improved activity of these nanomaterials is likely due to their increased size (diameters = 80-200 nm) compared to amyloid-targeting small mols. and that steric interactions may play as important a role as binding affinity in inhibiting viral infection mediated by SEVI amyloids. In contrast to the previously reported SEVI-neutralizing, amyloid-targeting mols. (which required concentrations at least 100-fold above the Kd to observe activity), the approx. 1:1 ratio of apparent Kd to IC50 for activity of these polymeric materials suggests the majority of polymer mols. that are bound to SEVI contribute to the inhibition of HIV infectivity enhanced by SEVI. Such size-related effects on phys. inhibition of protein-protein interactions may open further opportunities for the use of targeted nanomaterials in disease intervention. The experimental process involved the reaction of 2-(4-Aminophenyl)-6-methylbenzothiazole(cas: 92-36-4).Quality Control of 2-(4-Aminophenyl)-6-methylbenzothiazole

The Article related to hiv infection sevi amyloid targeting polyacrylate nanoparticle preparation antiaids, hiv, sevi, acrylate, nanoparticles, polymer, steric inhibition, Pharmacology: Effects Of Antimicrobials and Parasiticides and other aspects.Quality Control of 2-(4-Aminophenyl)-6-methylbenzothiazole

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Ukrainets, I. V.; Bereznyakova, N. L.; Kolesnik, O. V.; Turov, O. V. published an article in 2007, the title of the article was Synthesis, spectral characteristics and biological properties of 1-furfuryl-4-hydroxy-2-oxo-1,2,5,6,7,8-hexahydroquinoline-3-carboxylic acid anilides and heterylamides.Name: 2-(4-Aminophenyl)-6-methylbenzothiazole And the article contains the following content:

With the purpose of determination of regularities of their structure-antituberculosis activity relationship, the synthesis of 1-furfuryl-4-hydroxy-2-oxo-1,2,5,6,7,8-hexahydroquinoline-3-carboxylic acids N-R-amides has been carried out. The peculiarities of the NMR spectra of the compounds synthesized and the results of studying of their antimycobacterial activity are discussed. The experimental process involved the reaction of 2-(4-Aminophenyl)-6-methylbenzothiazole(cas: 92-36-4).Name: 2-(4-Aminophenyl)-6-methylbenzothiazole

The Article related to structure tuberculostatic furfuryl hexahydroquinoline carboxylate preparation, Pharmacology: Effects Of Antimicrobials and Parasiticides and other aspects.Name: 2-(4-Aminophenyl)-6-methylbenzothiazole

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Yang, S.; Liu, Q.-X.; Zeng, W.-J.; Zou, Y.; Wang, Z.-G.; Zhu, H.-L. published an article in 2004, the title of the article was Crystal structure of bis[N-(2-(2-hydroxyethylamino)ethyl)salicylideneimine]cadmium(II) dihydrate, Cd(C11H17N2O2)2·2H2O.Recommanded Product: 92-36-4 And the article contains the following content:

The title compound is monoclinic, space group P21/n, a 9.236(4), b 21.102(9), c 12.987(6) Å, β 97.638(6)°, Z = 4, Rgt(F) = 0.039, wRref(F2) = 0.117, T = 298 K. At. coordinates are given. The title compound is an electronically neutral cadmium(II) complex with two lattice water mols. The central cadmium atom is six-coordinated by four nitrogen atoms and two oxygen atoms from two Schiff base ligands. The three diagonal angles of the cadmium octahedron are 167.O(1)°, 152.4(1)°, and 154.5(1)°, resp., indicating a strongly distorted octahedral coordination of the cadmium atom. The two aromatic rings in each complex are nearly perpendicular to each other with a dihedral angle of 98.2(2)°. N(4), O(2), O(4) and O(5) atoms contribute to the formation of hydrogen bonds. The experimental process involved the reaction of 2-(4-Aminophenyl)-6-methylbenzothiazole(cas: 92-36-4).Recommanded Product: 92-36-4

The Article related to crystal structure cadmium hydroxyethylaminoethylsalicylideneimine hydrate, mol structure cadmium hydroxyethylaminoethylsalicylideneimine hydrate, Crystallography and Liquid Crystals: Crystal Structure and other aspects.Recommanded Product: 92-36-4

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

On June 30, 2003, Mosier, Philip D.; Jurs, Peter C.; Custer, Laura L.; Durham, Stephen K.; Pearl, Greg M. published an article.SDS of cas: 92-36-4 The title of the article was Predicting the Genotoxicity of Thiophene Derivatives from Molecular Structure. And the article contained the following:

We report several binary classification models that directly link the genetic toxicity of a series of 140 thiophene derivatives with information derived from the compounds’ mol. structure. Genetic toxicity was measured using an SOS Chromotest. IMAX (maximal SOS induction factor) values were recorded for each of the 140 compounds both in the presence and in the absence of S9 rat liver homogenate. Compounds were classified as genotoxic if IMAX ≥ 1.5 in either test or nongenotoxic if IMAX < 1.5 for both tests. The mol. structures were represented by numerical descriptors that encoded the topol., geometric, electronic, and polar surface area properties of the thiophene derivatives The classification models used were linear discriminant anal. (LDA), k-nearest neighbor classification (k-NN), and the probabilistic neural network (PNN). These were used in conjunction with either a genetic algorithm or a generalized simulated annealing to find optimal subsets of descriptors for each classifier. The quality of the resulting models was determined by the number of misclassified compounds, with preference given to models that produced fewer false neg. classifications. Model sizes ranged from seven descriptors for LDA to three descriptors for k-NN and PNN. Very good classification results were obtained with all three classifiers. Classification rates for the LDA, k-NN, and PNN models were 80, 85, and 85%, resp., for the prediction set compounds Addnl., a consensus model was generated that incorporated all three of the basic model types. This consensus model correctly predicted the genotoxicity of 95% of the prediction set compounds The experimental process involved the reaction of 2-(4-Aminophenyl)-6-methylbenzothiazole(cas: 92-36-4).SDS of cas: 92-36-4

The Article related to genotoxicity thiophene derivative structure activity relationship, Toxicology: Chemicals (Household, Industrial, General) and other aspects.SDS of cas: 92-36-4

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

Li, Yang; Du, Zhi; Liu, Xinping; Ma, Mengmeng; Yu, Dongqin; Lu, Yao; Ren, Jinsong; Qu, Xiaogang published an article in 2019, the title of the article was Near-Infrared Activated Black Phosphorus as a Nontoxic Photo-Oxidant for Alzheimer’s Amyloid-β Peptide.Name: 2-(4-Aminophenyl)-6-methylbenzothiazole And the article contains the following content:

The inhibition of amyloid-β (Aβ) aggregation by photo-oxygenation has become an effective way of treating Alzheimer’s disease (AD). New near-IR (NIR) activated treatment agents, which not only possess high photo-oxygenation efficiency, but also show low biotoxicity, are urgently needed. Herein, for the first time, it is demonstrated that NIR activated black phosphorus (BP) could serve as an effective nontoxic photo-oxidant for amyloid-β peptide in vitro and in vivo. The nanoplatform BP@BTA (BTA: one of thioflavin-T derivatives) possesses high affinity to the Aβ peptide due to specific amyloid selectivity of BTA. Importantly, under NIR light, BP@BTA can significantly generate a high quantum yield of singlet oxygen (1O2) to oxygenate Aβ, thereby resulting in inhibiting the aggregation and attenuating Aβ-induced cytotoxicity. In addition, BP could finally degrade into nontoxic phosphate, which guarantees the biosafety. Using transgenic Caenorhabditis elegans CL2006 as AD model, the results demonstrate that the 1O2-generation system could dramatically promote life-span extension of CL2006 strain by decreasing the neurotoxicity of Aβ. The experimental process involved the reaction of 2-(4-Aminophenyl)-6-methylbenzothiazole(cas: 92-36-4).Name: 2-(4-Aminophenyl)-6-methylbenzothiazole

The Article related to nearir black phosphorus photooxidant alzheimer’s amyloid, alzheimer’s disease, amyloid-β, black phosphorus, nontoxic photo-oxidants, photo-oxygenation, singlet oxygen, Radiation Biochemistry: Disease Diagnosis and Therapy and other aspects.Name: 2-(4-Aminophenyl)-6-methylbenzothiazole

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica

On July 20, 2007, Kim, Mi Kyoung; Choo, Il Han; Lee, Hyo Sun; Woo, Jong Inn; Chong, Youhoon published an article.Safety of 2-(4-Aminophenyl)-6-methylbenzothiazole The title of the article was 3D-QSAR of PET agents for imaging β-amyloid in Alzheimer’s disease. And the article contained the following:

The accumulation of excess senile plaques (β-amyloid, Aβ-plaques) in the brain is strongly associated with the pathogenesis of Alzheimer’s disease (AD). While there are no definitive treatments available to affect a cure of AD, much recent interest has been given to the development of antiamyloid therapies aimed at halting and reversing Aβ-deposition and, thus, monitoring of the therapeutic efficacy would greatly benefit from methods for the in vivo detection and quantification of Aβ-deposits in the brain. A 3D-QSAR model was constructed with several PET ligands such as Thioflavin-T analogs and stilbene derivatives using CoMFA (Comparative Mol. Field Anal.) and CoMSIA (Comparative Mol. Similarity Indexes Anal.). The 3D-QSAR model could be applied to predict binding affinity of the structurally related compounds against Aβ-plaques. The experimental process involved the reaction of 2-(4-Aminophenyl)-6-methylbenzothiazole(cas: 92-36-4).Safety of 2-(4-Aminophenyl)-6-methylbenzothiazole

The Article related to beta amyloid pet imaging agent qsar model, thioflavin stilbene derivative amyloid plaque imaging qsar, Radiation Biochemistry: Disease Diagnosis and Therapy and other aspects.Safety of 2-(4-Aminophenyl)-6-methylbenzothiazole

Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica