Category: thiazole

In 2019,Organic Chemistry Frontiers included an article by Zhou, Zhao-Zhao; Zhao, Jia-Hui; Gou, Xue-Ya; Chen, Xi-Meng; Liang, Yong-Min. Recommanded Product: 3034-22-8. The article was titled 《Visible-light-mediated hydrodehalogenation and Br/D exchange of inactivated aryl and alkyl halides with a palladium complex》. The information in the text is summarized as follows:

Herein, a novel photo-induced amine-free radical reductive dehalogenation of inactivated aryl/alkyl bromides and chlorides with a palladium complex is described,. Which reveals excellent functional group compatibility and broad substrate scope. Extensional transformations for reductive cyclization, dehalogenative deuteration, and intra- and intermol. radical addition can be achieved smoothly. Mechanistic studies indicate a single-electron photoredox catalytic system with inactivated solvent as the hydrogen atom donor. The experimental process involved the reaction of 5-Bromothiazol-2-amine(cas: 3034-22-8Recommanded Product: 3034-22-8)

5-Bromothiazol-2-amine(cas: 3034-22-8) belongs to anime. The methylamines occur in small amounts in some plants. Many polyfunctional amines (i.e., those having other functional groups in the molecule) occur as alkaloids in plants—for example, mescaline, 2-(3,4,5-trimethoxyphenyl)ethylamine; the cyclic amines nicotine, atropine, morphine, and cocaine; and the quaternary salt choline, N-(2-hydroxyethyl)trimethylammonium chloride, which is present in nerve synapses and in plant and animal cells.Recommanded Product: 3034-22-8

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

Li, Peng; Li, Wenqin; Xie, Zhuohao; Zhan, Haonan; Deng, Liehua; Huang, Jiahao published an article on February 28 ,2022. The article was titled 《A label-free and signal-amplifiable assay method for colorimetric detection of carcinoembryonic antigen》, and you may find the article in Biotechnology and Bioengineering.Synthetic Route of C18H24N6O6S4 The information in the text is summarized as follows:

In this work, an innovative colorimetric assay method for the determination of carcinoembryonic antigen is developed with aptamer probes utilized as recognition element. DNA hybridization chain reaction is used as signal amplification technique, and peroxidase-mimicking hemin/G-quadruplex-assisted catalytic oxidation of 2,2′-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS) is deployed as signal reporting mechanism. The detection principle was firstly verified by using gel electrophoresis anal. and absorbance measurements. After condition optimization, a detection limit was theor. determined as 24.8 ng/mL. Furthermore, the method exhibited good selectivity and satisfactory recovery rates (92.2%-108.6%) in serum samples. Moreover, the sensing scheme is easily extended for the detection of other analytes via similar target-aptamer recognition principle. To sum up, this is an enzyme- and label-free, cost-effective yet signal-amplifiable assay scheme for the determination of tumor markers with promising simplicity and selectivity, practical utility, and potential universality. After reading the article, we found that the author used ABTS Diammonium(cas: 30931-67-0Synthetic Route of C18H24N6O6S4)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Examples of direct uses of amines and their salts are as corrosion inhibitors in boilers and in lubricating oils (morpholine), as antioxidants for rubber and roofing asphalt (diarylamines), as stabilizers for cellulose nitrate explosives (diphenylamine), as protectants against damage from gamma radiation (diarylamines), as developers in photography (aromatic diamines), as flotation agents in mining, as anticling and waterproofing agents for textiles, as fabric softeners, in paper coating, and for solubilizing herbicides.Synthetic Route of C18H24N6O6S4

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

B, Manjunatha; Bodke, Yadav D.; O, Nagaraja; N, Lohith T.; G, Nagaraju; Ma, Sridhar published their research in Journal of Molecular Structure on December 15 ,2021. The article was titled 《Coumarin-Benzothiazole Based Azo Dyes: Synthesis, Characterization, Computational, Photophysical and Biological Studies》.COA of Formula: C7H5ClN2S The article contains the following contents:

In this paper, we have reported the synthesis of some coumarin-benzothiazole based azo dyes (C1-C5). The structure of the synthesized dyes was precisely established from their IR, NMR and HRMS spectra. The synthesized dyes were photophys. characterized by UV-Vis and Photoluminescence studies. Through the computational study, the optimized mol. geometry, and reactive parameters were investigated to get a better insight into the mol. properties. Mol. electrostatic potential (MEP) and Reduced d. gradient (RDG) were also studied for all the compounds Diffuse reflectance study was carried out to determine the energy gap (Eg) of the synthesized dyes. Addnl., the synthesized compounds were screened for their pharmacol. property against Mycobacterium tuberculosis (H37 RV strain). The in silico mol. docking study was also performed with enoyl-ACP reductase.6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9COA of Formula: C7H5ClN2S) was used in this study.

6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9) belongs to thiazoles. Thiazoles are a class of five-membered rings containing nitrogen and sulfur with excellent antitumor, antiviral and antibiotic activities.COA of Formula: C7H5ClN2SThe thiazole ring has been identified as a central feature of numerous natural products, perhaps the most famous example of which is epothilone.

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

Reference of 6-Chlorobenzothiazol-2-ylamineOn October 31, 2021 ,《Inhibition of the ubiquitin-proteasome system by an NQO1-activatable compound》 appeared in Cell Death & Disease. The author of the article were Giovannucci, Tatiana A.; Salomons, Florian A.; Haraldsson, Martin; Elfman, Lotta H. M.; Wickstroem, Malin; Young, Patrick; Lundbaeck, Thomas; Eirich, Jurgen; Altun, Mikael; Jafari, Rozbeh; Gustavsson, Anna-Lena; Johnsen, John Inge; Dantuma, Nico P.. The article conveys some information:

Malignant cells display an increased sensitivity towards drugs that reduce the function of the ubiquitin-proteasome system (UPS), which is the primary proteolytic system for destruction of aberrant proteins. Here, we report on the discovery of the bioactivatable compound CBK77, which causes an irreversible collapse of the UPS, accompanied by a general accumulation of ubiquitylated proteins and caspase-dependent cell death. CBK77 caused accumulation of ubiquitin-dependent, but not ubiquitin-independent, reporter substrates of the UPS, suggesting a selective effect on ubiquitin-dependent proteolysis. In a genome-wide CRISPR interference screen, we identified the redox enzyme NAD(P)H:quinone oxidoreductase 1 (NQO1) as a critical mediator of CBK77 activity, and further demonstrated its role as the compound bioactivator. Through affinity-based proteomics, we found that CBK77 covalently interacts with ubiquitin. In vitro experiments showed that CBK77-treated ubiquitin conjugates were less susceptible to disassembly by deubiquitylating enzymes. In vivo efficacy of CBK77 was validated by reduced growth of NQO1-proficient human adenocarcinoma cells in nude mice treated with CBK77. This first-in-class NQO1-activatable UPS inhibitor suggests that it may be possible to exploit the intracellular environment in malignant cells for leveraging the impact of compounds that impair the UPS. In the experiment, the researchers used many compounds, for example, 6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9Reference of 6-Chlorobenzothiazol-2-ylamine)

6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9) belongs to thiazoles. Thiazoles are a class of five-membered rings containing nitrogen and sulfur with excellent antitumor, antiviral and antibiotic activities.Reference of 6-Chlorobenzothiazol-2-ylamineThiazoles can also be used as protected formyl groups, which can be released in later stages of complex natural product synthesis.

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

Reference of ABTS DiammoniumOn November 30, 2020 ,《Ethanol extracts from Cinnamomum camphora seed kernel: Potential bioactivities as affected by alkaline hydrolysis and simulated gastrointestinal digestion》 appeared in Food Research International. The author of the article were Zhang, Guohua; Yan, Xianghui; Wu, Shasha; Ma, Maomao; Yu, Ping; Gong, Deming; Deng, Shuguang; Zeng, Zheling. The article conveys some information:

The aim of the study was to evaluate the changes of potential bioactivities of ethanol extracts (EE) from Cinnamomum camphora seed kernel (CCSK) after alk. hydrolysis and simulated gastrointestinal digestion. The total phenolic and total flavonoid contents in EE decreased by 30.6%, 1%, 33% and 11.8% after hydrolysis and digestion, resp. The total saponins content decreased by 17% after hydrolysis while increased by 48% after digestion. The total condensed tannin contents increased by 70.3% and 17.2% after hydrolysis and digestion, resp. The 1,1-diphenyl-2-picrylhydrazyl (DPPH), 2,2-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid (ABTS), cupric ion reducing activity (CUPRAC), ferric reducing antioxidant power (FRAP) and metal chelating activity (MCA) were used to determine antioxidant activity. Overall, the changes of antioxidant activities by hydrolysis and digestion were consistent with the changes of their total phenolic and flavonoid contents. The α-amylase and α-glucosidase inhibitory activities in EE increased by 817% and 33.3% after digestion while decreased by 12.3% and 19% after hydrolysis, resp. Although the inhibitory activities of cholinesterase, tyrosinase and xanthine oxidase were decreased by hydrolysis and digestion, most of these activities were retained. These results showed that CCSK ethanol extracts had strong bioactivities and were reasonably stable to alkali and digestive enzymes. In addition to this study using ABTS Diammonium, there are many other studies that have used ABTS Diammonium(cas: 30931-67-0Reference of ABTS Diammonium) was used in this study.

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Amines can be classified according to the nature and number of substituents on nitrogen. Aliphatic amines contain only H and alkyl substituents. Aromatic amines have the nitrogen atom connected to an aromatic ring.Important amines include amino acids, biogenic amines, trimethylamine, and aniline. Inorganic derivatives of ammonia are also called amines, such as monochloramine (NClH2).Reference of ABTS Diammonium

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

In 2014,Jashari, Ahmed; Imeri, Faik; Ballazhi, Lulzime; Shabani, Agim; Mikhova, Bozhana; Drager, Gerald; Popovski, Emil; Huwiler, Andrea published 《Synthesis and cellular characterization of novel isoxazolo- and thiazolohydrazinylidene-chroman-2,4-diones on cancer and non-cancer cell growth and death》.Bioorganic & Medicinal Chemistry published the findings.Product Details of 3034-22-8 The information in the text is summarized as follows:

Coumarins are extensively studied anticoagulants that exert addnl. effects such as anticancerogenic and even anti-inflammatory. To find new drugs with anticancer activities, the authors report the synthesis and the structural anal. of new coumarin derivatives which combine the coumarin core and five member heterocycles in hydrazinylidene-chroman-2,4-diones. The derivatives were prepared by derivatization of the appropriate heterocyclic amines which were used as electrophiles to attack the coumarin ring. The structures were characterized by spectroscopic techniques including IR, NMR, 2D-NMR and MS. These derivatives were further characterized especially in terms of a potential cytotoxic and apoptogenic effect in several cancer cell lines including the breast and prostate cancer cell lines MCF-7, MDA-MB-231, PC-3, LNCaP, and the monocytic leukemia cell line U937. Cell viability was determined after 48 h and 72 h of treatment with the novel compounds by MTT assay and the 50% inhibitory concentrations (EC50 values) were determined Out of the 8 novel compounds screened for reduced cell viability, I, II and III were found to be the most promising and effective ones having EC50 values that were several fold reduced when compared to the reference substance 4-hydroxycoumarin. However, the effects were cancer cell line dependent. The breast cancer MDA-MB-231 cells, the prostate cancer LNCaP cells, and U937 cells were most sensitive, MCF-7 cells were less sensitive, and PC-3 cells were more resistant. Reduced cell viability was accompanied by increased apoptosis as shown by PARP-1 cleavage and reduced activity of the survival protein kinase Akt. In summary, this study has identified three novel coumarin derivatives that in comparison to 4-hydroxycoumarin have a higher efficiency to reduce cancer cell viability and trigger apoptosis and therefore may represent interesting novel drug candidates.5-Bromothiazol-2-amine(cas: 3034-22-8Product Details of 3034-22-8) was used in this study.

5-Bromothiazol-2-amine(cas: 3034-22-8) belongs to anime. Amines have a free lone pair with which they can coordinate to metal centers. Amine–metal bonds are weaker because amines are incapable of backbonding, but they are still important for sensing applications.While stronger than hydrogen bonds, amine–metal bonds are still weaker than both covalent and ionic bonds.Product Details of 3034-22-8

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

In 2013,Burli, Roland W.; Luckhurst, Christopher A.; Aziz, Omar; Matthews, Kim L.; Yates, Dawn; Lyons, Kathy. A.; Beconi, Maria; McAllister, George; Breccia, Perla; Stott, Andrew J.; Penrose, Stephen D.; Wall, Michael; Lamers, Marieke; Leonard, Philip; Muller, Ilka; Richardson, Christine M.; Jarvis, Rebecca; Stones, Liz; Hughes, Samantha; Wishart, Grant; Haughan, Alan F.; O’Connell, Catherine; Mead, Tania; McNeil, Hannah; Vann, Julie; Mangette, John; Maillard, Michel; Beaumont, Vahri; Munoz-Sanjuan, Ignacio; Dominguez, Celia published 《Design, Synthesis, and Biological Evaluation of Potent and Selective Class IIa Histone Deacetylase (HDAC) Inhibitors as a Potential Therapy for Huntington’s Disease》.Journal of Medicinal Chemistry published the findings.Recommanded Product: 5-Bromothiazol-2-amine The information in the text is summarized as follows:

Inhibition of class IIa histone deacetylase (HDAC) enzymes have been suggested as a therapeutic strategy for a number of diseases, including Huntington’s disease. Catalytic-site small mol. inhibitors of the class IIa HDAC4, -5, -7, and -9 were developed (e.g., I). These trisubstituted diarylcyclopropanehydroxamic acids were designed to exploit a lower pocket that is characteristic for the class IIa HDACs, not present in other HDAC classes. Selected inhibitors were cocrystd. with the catalytic domain of human HDAC4. We describe the first HDAC4 catalytic domain crystal structure in a “”closed-loop”” form, which in our view represents the biol. relevant conformation. We have demonstrated that these mols. can differentiate class IIa HDACs from class I and class IIb subtypes. They exhibited pharmacokinetic properties that should enable the assessment of their therapeutic benefit in both peripheral and CNS disorders. These selective inhibitors provide a means for evaluating potential efficacy in preclin. models in vivo. The experimental process involved the reaction of 5-Bromothiazol-2-amine(cas: 3034-22-8Recommanded Product: 5-Bromothiazol-2-amine)

5-Bromothiazol-2-amine(cas: 3034-22-8) belongs to anime.Typically the presence of an amine functional group is deduced by a combination of techniques, including mass spectrometry as well as NMR and IR spectroscopies. 1H NMR signals for amines disappear upon treatment of the sample with D2O. In their infrared spectrum primary amines exhibit two N-H bands, whereas secondary amines exhibit only one.Recommanded Product: 5-Bromothiazol-2-amine

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

Tian, Qiaopeng; Dou, Xin; Huang, Lin; Wang, Lei; Meng, Di; Zhai, Lixin; Shen, Yu; You, Cuiping; Guan, Zhengbing; Liao, Xiangru published an article on January 15 ,2020. The article was titled 《Characterization of a robust cold-adapted and thermostable laccase from Pycnoporus sp. SYBC-L10 with a strong ability for the degradation of tetracycline and oxytetracycline by laccase-mediated oxidation》, and you may find the article in Journal of Hazardous Materials.Computed Properties of C18H24N6O6S4 The information in the text is summarized as follows:

A native laccase (Lac-Q) with robust cold-adapted and thermostable characteristics from the white-rot fungus Pycnoporus sp. SYBC-L10 was purified, characterized, and used in antibiotic treatments. Degradation experiments revealed that Lac-Q at 10.0 U mL-1 coupled with 1.0 mmol L-1 ABTS could degrade 100% of the tetracycline or oxytetracycline (50 mg L-1) within 5 min with a static incubation at 0 °C (pH 6.0). The presence of the Mn2+ ion inhibited the removal rate of tetracycline and oxytetracycline by the Lac-Q-ABTS system, and the presence of Al3+, Cu2+, and Fe3+ accelerated the removal rate of tetracycline and oxytetracycline by the Lac-Q-ABTS system. Furthermore, seven transformation products of oxytetracycline (namely TP 445, TP 431, TP 413, TP 399, TP 381, TP 367, and TP 351) were identified during the Lac-Q-mediated oxidation process by using UPLC-MS/MS. A possible degradation pathway including deamination, demethylation, and dehydration was proposed. Furthermore, the growth inhibition of Bacillus altitudinis SYBC hb4 and E. coli by tetracycline antibiotics revealed that the antimicrobial activity was significantly reduced after treatment with the Lac-Q-ABTS system. Finally, seven transformation products of oxytetracycline (namely TP 445, TP 431, TP 413, TP 399, TP 381, TP 367, and TP 351) were identified during the Lac-Q-mediated oxidation process by using UPLC-MS/MS. A possible degradation pathway including deamination, demethylation, and dehydration was proposed. These results suggest that the Lac-Q-ABTS system shows a great potential for the treatment of antibiotic wastewater containing different metal ions at various temperatures The experimental part of the paper was very detailed, including the reaction process of ABTS Diammonium(cas: 30931-67-0Computed Properties of C18H24N6O6S4)

ABTS Diammonium(cas: 30931-67-0) belongs to anime.Typically the presence of an amine functional group is deduced by a combination of techniques, including mass spectrometry as well as NMR and IR spectroscopies. 1H NMR signals for amines disappear upon treatment of the sample with D2O. In their infrared spectrum primary amines exhibit two N-H bands, whereas secondary amines exhibit only one.Computed Properties of C18H24N6O6S4

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

The author of 《Silica-Supported P2O5 as an Efficient Heterogeneous Catalyst for the One Pot Synthesis of 3-Amino-imidazo[2,1-b](1,3)benzothiazole under Green Conditions》 were Khan, Takallum; Yadav, Ritu. And the article was published in Journal of Heterocyclic Chemistry in 2019. Quality Control of 6-Chlorobenzothiazol-2-ylamine The author mentioned the following in the article:

The new approach involving the solid supported catalyst for the formation of C-N bond followed by cyclization has been reported. In this work we have reported a facile, efficient, and environment-friendly protocol for the synthesis of some new 3-amino-imidazo[2,1-b](1,3)benzothiazole derivatives by one-pot condensation of 2-aminobenzothiazole, indole-3-carbaldehyde, and aryl isocyanide in the presence of silica-supported P2O5 as a heterogeneous solid acid catalyst. The reaction was performed using conventional method under green conditions. The present approach offers the advantages of simple methodol., inexpensive acid catalyst, short reaction time, easy work up with excellent yield, simple purification and use of green solvent. All the newly synthesized compounds were characterized in details using phys. and chem. techniques such as m.p., 1H NMR, 13C NMR, and FTIR spectroscopy. The experimental process involved the reaction of 6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9Quality Control of 6-Chlorobenzothiazol-2-ylamine)

6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9) belongs to thiazoles. Thiazoles are a class of five-membered rings containing nitrogen and sulfur with excellent antitumor, antiviral and antibiotic activities.Quality Control of 6-Chlorobenzothiazol-2-ylamineTheir presence in peptides or their ability to bind proteins, DNA and RNA has led to many synthetic studies and new applications.

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

Ning, Qiqi; Wang, Yingying; Wang, Yilu; Tu, Fangming; Chen, Xiaodi; Chen, Qiming; Liu, Zhanmin published their research in Sensors and Actuators, B: Chemical on August 15 ,2022. The article was titled 《Development of an enhanced visual signal amplification assay for GSH detection with DNA-cleaving DNAzyme as a trigger》.Electric Literature of C18H24N6O6S4 The article contains the following contents:

Glutathione (GSH) plays a significant role in human health. Considering that dietary intake of GSH is an important way to keep GSH levels in the body, it is particularly essential to quantitate the supplemental content of GSH. In this study, an enhanced visual signal amplification assay for GSH detection in food with DNA-cleaving DNAzyme as a trigger was developed. The trigger contained a Trigger-enzyme strand (Pb2+ dependent DNAzyme sequence) and a Trigger-substrate strand. In the absence of GSH, DNAzyme was formed with Pb2+ induction and Trigger-substrate strand was cleaved to release the initiator sequence. Initiator sequence could initiate RCA reaction and generate abundant G-quadruplex sequences. After G-quadruplex/hemin DNAzyme was formed in the presence of G-quadruplex sequences, a visual signal could be produced by catalyzing ABTS. In the presence of GSH, Pb2+ would combine with GSH and there would not be following visual signal production Thus, GSH could be detected with a “”turn-off”” strategy and GSH concentration was neg. correlated with color change. Besides, Nb. BbvCI nicking endonuclease was introduced to improve the visual effect. The results could be qual. identified by the naked eye and quant. analyzed by spectrophotometry (Linearity range: 10 nM to 1 μM, LOD: 3.99 nM) with good selectivity and reliability. We also developed a smartphone-based visual anal. method to make the quant. anal. independent on a spectrophotometer (Linearity range: 10 nM to 0.5 μM, LOD: 8.17 nM). We believe that this assay showed a good potential for rapid and sensitive detection of GSH in food. The experimental process involved the reaction of ABTS Diammonium(cas: 30931-67-0Electric Literature of C18H24N6O6S4)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Nitrous acid converts secondary amines (aliphatic or aromatic) to N-nitroso compounds (nitrosamines): R2NH + HNO2 → R2N―NO. Some nitrosamines are potent cancer-inducing substances, and their possible formation is a serious consideration when nitrites, which are salts of nitrous acid, are present in foods or pharmaceutical preparations. Tertiary amines give rise to nitrosamines more slowly; an alkyl group is eliminated as an aldehyde or ketone, along with nitrous oxide, N2O.Electric Literature of C18H24N6O6S4

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