Category: thiazole

Sagnou, Marina; Tzanopoulou, Stamatia; Raptopoulou, Catherine P.; Psycharis, Vassilis; Braband, Henrik; Alberto, Roger; Pirmettis, Ioannis C.; Papadopoulos, Minas; Pelecanou, Maria published an article in 2012, the title of the article was A Phenylbenzothiazole Conjugate with the Tricarbonyl fac-[M(I)(CO)3]+ (M = Re, 99Tc, 99mTc) Core for Imaging of β-Amyloid Plaques.Safety of 2-(4-Aminophenyl)-6-methylbenzothiazole And the article contains the following content:

The 2-(4′-aminophenyl)-6-methylbenzothiazole that is known to display affinity and specificity toward the amyloid plaques of Alzheimer’s disease (AD) has been joined to the tricarbonyl [M(CO)3NNO] chelate (M = Re, 99Tc, and 99mTc) through a five-carbon linker chain to generate the neutral complex (1) (namely, Re-1 for M = Re; 99Tc-1 for M = 99Tc; and 99mTc-1 for M = 99mTc) with the aim of developing a single-photon emission computed tomog. (SPECT) radiodiagnostic agent for AD. Re-1 was characterized by spectroscopic methods and x-ray crystallog., whereas the detailed NMR spectroscopic anal. of 99Tc-1 demonstrated its structural similarity to Re-1. Complexes Re-1 and 99Tc-1 display selective binding affinity for amyloid plaques as evidenced by fluorescence spectroscopy, whereas the biodistribution data of 99mTc-1 characterized by relatively low brain uptake, fast clearance from brain and blood, and in vivo stability are considered encouraging for further elaboration on the structural features of 1 in the direction of increased brain uptake. 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 radiolabeled benzothiazole chelate conjugate spect imaging amyloid alzheimers, crystal structure rhenium benzothiazolyl phenylaminocarbonylbutyl pyridinylmethyl aminoacetate tricarbonyl complex, mol structure rhenium benzothiazolyl phenylaminocarbonylbutyl pyridinylmethyl aminoacetate tricarbonyl complex and other aspects.Safety of 2-(4-Aminophenyl)-6-methylbenzothiazole

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

On August 30, 2022, Krause, Svenja; Asamoah, Eugenia Ayebea; Huc-Mathis, Delphine; Moulin, Gabrielle; Jakobi, Ralf; Rega, Barbara; Bonazzi, Catherine published an article.Quality Control of 2-Acetylthiazole The title of the article was Applicability of pea ingredients in baked products: Links between formulation, reactivity potential and physicochemical properties. And the article contained the following:

This study aimed to evaluate the applicability of purified pea ingredients (starch and protein isolate) by assessing their potential to form volatile compounds during the different steps of sponge cake development compared to pea flour and wheat flour. While pea flour was highly susceptible to lipid oxidation during batter beating, the combination of purified pea starch and pea protein yielded significantly fewer oxidation markers with known green-beany off-odors. This was due more to the inactivation of lipoxygenase during flour fractionation than to differences in batter structure. However, fractionated ingredients were highly prone to participating in the Maillard reaction and caramelization during baking, leading to a more complex mixture of pyrazines, Strecker aldehydes and furanic compounds with potential malty and roasted notes compared to cakes based on pea flour or wheat flour. These findings confirm that using purified pea fractions can create high-quality products with an attractive composition The experimental process involved the reaction of 2-Acetylthiazole(cas: 24295-03-2).Quality Control of 2-Acetylthiazole

The Article related to pea starch flour cake aldehydes lipoxygenase lipid physicochem property, 1-hexanol, 1-octen-3-ol, 2,4-decadienal, 2,5-dimethylpyrazine, 2-ethyl-3,5-dimethylpyrazine, 2-methylpropanal, 3-methylbutanal, furan, furfural, hexanal, lipid oxidation, maillard reaction, pea protein, pea starch, structure and other aspects.Quality Control of 2-Acetylthiazole

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

Choroba, Katarzyna; Maron, Anna; Switlicka, Anna; Szlapa-Kula, Agata; Siwy, Mariola; Grzelak, Justyna; Mackowski, Sebastian; Pedzinski, Tomasz; Schab-Balcerzak, Ewa; Machura, Barbara published an article in 2021, the title of the article was Carbazole effect on ground- and excited-state properties of rhenium(I) carbonyl complexes with extended terpy-like ligands.Application In Synthesis of 2-Acetylthiazole And the article contains the following content:

The ground- and excited-state properties of three [ReCl(CO)3(Ln-κ2N)] bearing 2,2′:6′,2”-terpyridine, 2,6-di(thiazol-2-yl)pyridine and 2,6-di(pyrazin-2-yl)pyridine functionalized with 9-carbazole attached to the central pyridine ring of the triimine core via phenylene linkage were investigated by spectroscopic and electrochem. methods and were simulated using d. functional theory (DFT) and time-dependent DFT. To get a deeper and broader understanding of structure-property relations, the designed Re(I) carbonyl complexes were compared with previously reported analogous systems – without any groups attached to the Ph ring and bearing pyrrolidine instead of 9-carbazole. Attachment of the N-carbazolyl substituent to the triimine core has less influence on the nature of the triplet excited state of [ReCl(CO)3(Ln-κ2N)] than the pyrrolidine group. Addnl., the impact of the ligand structural modifications on the light emission of the Re(I) complexes under external voltage was preliminarily examined with electroluminescence spectra of diodes containing the synthesized new mols. in an active layer. The experimental process involved the reaction of 2-Acetylthiazole(cas: 24295-03-2).Application In Synthesis of 2-Acetylthiazole

The Article related to rhenium carbonyl carbazolylterpyridine carbazolylpyridinediylbisthiazol carbazolylpyridinediylbispyrazine complex preparation crystal structure, electrochem dft calculation rhenium carbonyl carbazolylterpyridine carbazolylpyridinediylbisthiazol carbazolylpyridinediylbispyrazine complex and other aspects.Application In Synthesis of 2-Acetylthiazole

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

《The Reaction of N -Trimethylsilyl-Substituted Heteroarylamines with Esters and Thioesters: An Efficient Protocol To Access Diheteroarylamides》 was written by Koperniku, Ana; Zamiri, Maryam; Grierson, David S.. Quality Control of 6-Chlorobenzothiazol-2-ylamine And the article was included in Synthesis on April 30 ,2019. The article conveys some information:

The S-benzyl thioester and Me ester derivatives of a representative 4-pyridinone-based carboxylic acid were sufficiently activated to react efficiently in amide coupling reactions with the amide anion generated in situfrom the N-trimethylsilyl derivative of different weakly nucleophilic heteroarylamines. In acetonitrile as solvent, the precipitated diheteroarylamide products were isolated in pure form by vacuum filtration. This simple amide bond forming protocol can be readily adapted to the parallel synthesis of compound libraries. In addition to this study using 6-Chlorobenzothiazol-2-ylamine, there are many other studies that have used 6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9Quality Control of 6-Chlorobenzothiazol-2-ylamine) 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.Quality Control 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.

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

《Convenient and efficient synthesis of novel 11H-benzo[5,6][1,4]thiazino[3,4-a]isoindol-11-ones derived from 2-bromo-(2/3-substituted phenyl)-1H-indene-1,3(2H)-diones》 was published in RSC Advances in 2019. These research results belong to Mor, Satbir; Sindhu, Suchita. COA of Formula: C7H5ClN2S The article mentions the following:

An unprecedented formation of 11H-benzo[5,6][1,4]thiazino[3,4-a]isoindol-11-ones I (R1 = 2-Me, 2-MeO, 2-F, 3-F; R2 = H, Me, OMe, Cl, Br) through a one-step reaction of differently substituted 2-aminobenzenethiols 2-H2N-5-R2C6H4SH and 2-bromo-(2/3-substituted phenyl)-1H-indene-1,3(2H)-diones II in freshly dried ethanol under reflux conditions has been investigated. This unique transformation probably occurs through an initial nucleophilic substitution followed by ring opening and subsequent intramol. cyclization. The structures of all the synthesized benzo[1,4]thiazino isoindolinones I were established by FTIR, 1H NMR, 13C NMR, HRMS, and X-ray crystallog. anal. This approach was found to be simple and convenient and provides several advantages such as substantial atom economy, short reaction time and operational simplicity. The experimental process involved the reaction of 6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9COA of Formula: C7H5ClN2S)

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: C7H5ClN2SThiazoles can also be used as protected formyl groups, which can be released in later stages of complex natural product synthesis.

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

The author of 《In vitro and in silico evaluation of anticancer activity of new indole-based 1,3,4-oxadiazoles as EGFR and COX-2 inhibitors》 were Sever, Belgin; Altintop, Mehlika Dilek; Ozdemir, Ahmet; Ciftci, Gulsen Akalin; Ellakwa, Doha E.; Tateishi, Hiroshi; Radwan, Mohamed O.; Ibrahim, Mahmoud A. A.; Otsuka, Masami; Fujita, Mikako; Ciftci, Halil I.; Ali, Taha F. S.. And the article was published in Molecules in 2020. Reference of 6-Chlorobenzothiazol-2-ylamine The author mentioned the following in the article:

Epidermal growth factor receptor (EGFR) and cyclooxygenase-2 (COX-2) are crucial targetable enzymes in cancer management. Therefore, herein, new 2-[(5-((1H-indol-3-yl)methyl)-1,3,4-oxadiazol-2-yl)thio]-N-(thiazol/benzothiazol-2-yl)acetamides (2a-i) were designed and synthesized as EGFR and COX-2 inhibitors. The cytotoxic effects of compounds 2a-i on HCT116 human colorectal carcinoma, A549 human lung adenocarcinoma, and A375 human melanoma cell lines were determined using MTT assay. 2-[(5-((1H-Indol-3-yl)methyl)-1,3,4-oxadiazol-2-yl)thio]-N-(6-ethoxybenzothiazol-2-yl)acetamide (2e) exhibited the most significant anticancer activity against HCT116, A549, and A375 cell lines with IC50 values of 6.43 ± 0.72μM, 9.62 ± 1.14μM, and 8.07 ± 1.36μM, resp., when compared with erlotinib (IC50 = 17.86 ± 3.22μM, 19.41 ± 2.38μM, and 23.81 ± 4.17μM, resp.). Further mechanistic assays demonstrated that compound 2e enhanced apoptosis (28.35%) in HCT116 cells more significantly than erlotinib (7.42%) and caused notable EGFR inhibition with an IC50 value of 2.80 ± 0.52μM when compared with erlotinib (IC50 = 0.04 ± 0.01μM). However, compound 2e did not cause any significant COX-2 inhibition, indicating that this compound showed COX-independent anticancer activity. The mol. docking study of compound 2e emphasized that the benzothiazole ring of this compound occupied the allosteric pocket in the EGFR active site. In conclusion, compound 2e is a promising EGFR inhibitor that warrants further clin. investigations. In the experiment, the researchers used 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-ylamineThe 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

In 2019,Molecules included an article by Petrou, Anthi; Eleftheriou, Phaedra; Geronikaki, Athina; Akrivou, Melpomeni G.; Vizirianakis, Ioannis. SDS of cas: 95-24-9. The article was titled 《Novel thiazolidin-4-ones as potential non-nucleoside inhibitors of HIV-1 reverse transcriptase》. The information in the text is summarized as follows:

Background: HIV is the causative agent of Acquired Immunodeficiency Syndrome (AIDS), an infectious disease with increasing incidence worldwide. Non-nucleoside reverse transcriptase inhibitors (NNRTIs) play an important role in the treatment of AIDS. Although, many compounds are already being used as anti-HIV drugs, research for the development of new inhibitors continues as the virus develops resistant strains. Methods: The best features of available NNRTIs were taken into account for the design of novel inhibitors. PASS (Prediction of activity spectra for substances) prediction program and mol. docking studies for the selection of designed compounds were used for the synthesis. Compounds were synthesized using conventional and microwave irradiation methods and HIV RT inhibitory action was evaluated by colorimetric photometric immunoassay. Results: The evaluation of HIV-1 RT inhibitory activity revealed that seven compounds have significantly lower IC50 values than nevirapine (0.3μM). It was observed that the activity of compounds depends not only on the nature of substituent and it position in benzothiazole ring but also on the nature and position of substituents in benzene ring. Conclusion: Twenty four of the tested compounds exhibited inhibitory action lower than 4μM. Seven of them showed better activity than nevirapine, while three of the compounds exhibited IC50 values lower than 5 nM. Two compounds 9 and 10 exhibited very good inhibitory activity with IC50 1 nM. The experimental part of the paper was very detailed, including the reaction process of 6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9SDS of cas: 95-24-9)

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.SDS of cas: 95-24-9The 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

Chehab, Rana; Coulomb, Bruno; Boudenne, Jean-Luc; Robert-Peillard, Fabien published an article on January 15 ,2020. The article was titled 《Development of an automated system for the analysis of inorganic chloramines in swimming pools via multi-syringe chromatography and photometric detection with ABTS》, and you may find the article in Talanta.Reference of ABTS Diammonium The information in the text is summarized as follows:

Inorganic chloramines are disinfection byproducts resulting from the unwanted reaction between chlorine used as disinfectant in swimming pools and nitrogenous compounds brought by bathers. This parameter (total chloramines or combined chlorine) is currently measured on site by a colorimetric method that does not allow to measure only inorganic chloramines. In this paper, a multi-syringe chromatog. system combined with a post column derivatization is applied for the first time for the specific detection of the three individual inorganic chloramines (monochloramine, dichloramine and trichloramine). These latter ones are separated using a low-pressure monolithic C18 column, and sep. detected after a post-column reaction with the chromogenic reagent ABTS (2,2′-azino-bis-(3-ethyl-benzothiazoline)-6-sulfonic acid-diammonium salt). Development of two ABTS reagents provides discrimination of chlorine and monochloramine that are not separated on the column. Optimization of the exptl. conditions enables determination of inorganic chloramines with very good detection limits (around 10 μg eq.Cl2 L-1) without interferences from other chlorinated compounds such as organic chloramines or free available chlorine. The validation of the whole procedure has been successfully applied to real swimming pools samples. In the experiment, the researchers used ABTS Diammonium(cas: 30931-67-0Reference of ABTS Diammonium)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Large quantities of aliphatic amines are made synthetically. The most widely used industrial method is the reaction of alcohols with ammonia at a high temperature, catalyzed by metals or metal oxide catalysts (e.g., nickel or copper). Mixtures of primary, secondary, and tertiary amines are thereby produced.Reference of ABTS Diammonium

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

《Synergistic effect of copolymeric resin grafted 1,2-benzisothiazol-3(2H)-one and heterocyclic groups as a marine antifouling coating》 was published in RSC Advances in 2021. These research results belong to Dong, Miao; Liu, Zheng; Gao, Yuxing; Wang, Xuemei; Chen, Junhua; Yang, Jianxin. COA of Formula: C7H5ClN2S The article mentions the following:

In order to find a new type of antifouling coating with higher biol. activity and more environmental protection, heterocyclic compounds and benzoisothiazolinone were introduced into acrylic resin to prepare a new type of antifouling resin. In this study, a series of grafted acrylic resins simultaneously containing benzoisothiazolinone and heterocyclic monomers were prepared by the copolymerization of an allyl monomer with Me methacrylate (MMA) and Bu acrylate (BA). Inhibitory activities of the copolymers against marine fouling organisms were also investigated. Results revealed that the copolymers exhibit a clear synergistic inhibitory effect on the growth of three seaweeds: Chlorella, Isochrysis galbana and Chaetoceros curvisetus, resp., and three bacteria, Staphylococcus aureus, Vibrio coralliilyticus and Vibrio parahaemolyticus, resp. In addition, the copolymers exhibited excellent inhibition against barnacle larvae. Marine field tests indicated that the resins exhibit outstanding antifouling potency against marine fouling organisms. Moreover, the introduction of the heterocyclic group led to the significantly enhanced antifouling activities of the resins; the addition of the heterocyclic unit in copolymers led to better inhibition than that observed in the case of the resin copolymerized with only the benzoisothiazolinone active monomer. The results came from multiple reactions, including the reaction of 6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9COA of Formula: C7H5ClN2S)

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: C7H5ClN2SThiazoles can also be used as protected formyl groups, which can be released in later stages of complex natural product synthesis.

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

《Flow hydrodediazoniation of aromatic heterocycles》 was published in Molecules in 2019. These research results belong to Roeder, Liesa; Nicholls, Alexander J.; Baxendale, Ian R.. SDS of cas: 95-24-9 The article mentions the following:

Continuous flow processing was applied for the rapid replacement of an aromatic amino group with a hydride. The approach was applied to a range of aromatic heterocycles RNH2 (R = 1,3-benzoxazol-2-yl, 2-pyridyl, 4-cyano-1-phenyl-1H-1,2,3-triazol-5-yl, etc.) confirming the wide scope and substituent-tolerance of the processes. Flow equipment was utilized and the process optimized to overcome the problematically-unstable intermediates that have restricted yields in previous studies relying on batch procedures. Various common organic solvents were investigated as potential hydride sources. The approach has allowed key structures, such as amino-pyrazoles and aminopyridines to be deaminated in good yield using a purely organic-soluble system.6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9SDS of cas: 95-24-9) 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.SDS of cas: 95-24-9Thiazoles can also be used as protected formyl groups, which can be released in later stages of complex natural product synthesis.

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