Category: thiazole

In 2022,Organic & Biomolecular Chemistry included an article by Choudhary, Shivani; Gayyur; Ghosh, Nayan. Formula: C7H5ClN2S. The article was titled 《Cu(II)-catalyzed [4 + 1] and [4 + 3] annulation reactions: a modular approach to N-aryl/alkyl substituted 2,5-diamidopyrroles and diazepines》. The information in the text is summarized as follows:

A one-pot copper-catalyzed [4 + 1] annulation reaction of primary amines with ynamide-derived buta-1,3-diynes for the synthesis of 2,5-diamido bearing N-aryl/alkyl pyrroles in up to excellent yields has been showcased. A broad range of primary amines having highly reactive functional groups are well tolerated. Notably, sterically demanding aniline and primary aliphatic amines are excellent amine sources. Furthermore, the current protocol may yield structurally unique diazepine derivatives The scale-up reaction and fruitful chem. elaboration of pyrrole motifs highlight the importance of this reaction. In the experiment, the researchers used many compounds, for example, 6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9Formula: 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.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

《One-step photostructuring of multiple hydrogel arrays for compartmentalized enzyme reactions in microfluidic devices》 was published in Reaction Chemistry & Engineering in 2019. These research results belong to Obst, Franziska; Simon, David; Mehner, Philipp J.; Neubauer, Jens W.; Beck, Anthony; Stroyuk, Oleksandr; Richter, Andreas; Voit, Brigitte; Appelhans, Dietmar. Product Details of 30931-67-0 The article mentions the following:

We present a technique for the simultaneous photostructuring of hydrogels on the μm scale with different compositions on one substrate. The existing methods (e.g. spin-coating of the hydrogel precursor and application of simple molds or spacers) have less potential to integrate spatially separated functional hydrogel dots as needed for the fabrication of complex polydimethylsiloxane (PDMS) on-glass microfluidic chips. Here, we report a method for the fast production of precisely placed hydrogel structures with adjustable height (= 80μm) and width (= 500μm) on glass substrates utilizing black polyoxymethylene molds. The integration of several chambers for different hydrogel precursor solutions in one mold allows the simultaneous photopolymerization of hydrogels with different compositions To visualize the difference in composition of the hydrogel dots and to demonstrate the precision in structuring, various quantum dots were added to the hydrogel precursor solutions and phys. entrapped during the photopolymerization To show the high potential of our photostructuring method, a microfluidic double-chamber reactor was designed and the variability in the performance of tri-enzymic cascade reactions with optionally spatially separated or non-separated enzymes β-galactosidase, glucose oxidase, and horseradish peroxidase was visualized.ABTS Diammonium(cas: 30931-67-0Product Details of 30931-67-0) was used in this study.

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Hydrogen peroxide (H2O2) and peroxy acids generally add an oxygen atom to the nitrogen of amines. With primary amines, this step is normally followed by further oxidation, leading to nitroso compounds, RNO, or nitro compounds, RNO2. Secondary amines are converted to hydroxylamines, R2NOH, and tertiary amines to amine oxides, R3NO.Product Details of 30931-67-0

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

《Identification of 1,3-thiazole-5-carboxylic Acid Derivatives as Inhibitors of Protein Kinase CK2》 was written by Protopopov, Mykola V.; Volynets, Galyna P.; Starosyla, Sergiy A.; Vdovin, Vasyl S.; Lukashov, Sergiy S.; Bilokin, Yaroslav V.; Bdzhola, Volodymyr G.; Yarmoluk, Sergiy M.. Application In Synthesis of 4-Methyl-2-(pyridin-4-yl)thiazole-5-carboxylic acid And the article was included in Current Enzyme Inhibition on August 31 ,2018. The article conveys some information:

Serine/threonine protein kinase CK2 is involved in the regulation of a number of cellular functions such as cell growth, proliferation, differentiation and apoptosis. Increased activity of CK2 is associated with the development of different types of cancer, inflammatory response, pain and virus infections. Therefore, protein kinase CK2 is an attractive mol. target for the development of small-mol. inhibitors which can be important compounds for pharmaceutical application. The main aim of this research is to identify novel chem. class of CK2 inhibitors with good lead-like properties. In order to find novel CK2 inhibitors, virtual screening experiments were performed using Autodock software. Best-scored compounds were tested in vitro using P32 radioactive kinase assay. Small-mol. inhibitors of protein kinase CK2 were identified among the derivatives of 1,3-thiazole-5-carboxylic acid. The most active compound inhibited CK2 with IC50 value of 0.4 μM. Ligand efficiency for studied derivatives of 1,3-thiazole-5-carboxylic acid was in the range from 0.45 to 0.56 kcal/mol/non-hydrogen atom. Considering the fact that the lower limit for ligand efficiency parameter is 0.3, the identified CK2 inhibitors among the derivatives of 1,3-thiazole-5-carboxylic acid are excellent candidates for further lead optimization. The results came from multiple reactions, including the reaction of 4-Methyl-2-(pyridin-4-yl)thiazole-5-carboxylic acid(cas: 144060-98-0Application In Synthesis of 4-Methyl-2-(pyridin-4-yl)thiazole-5-carboxylic acid)

4-Methyl-2-(pyridin-4-yl)thiazole-5-carboxylic acid(cas: 144060-98-0) belongs to pyridine. Pyridine-based materials are valued for their optical and physical properties as well as their medical potential. Additionally, pyridine-based natural products continue to be discovered and studied for their properties and to understand their biosynthesis.Application In Synthesis of 4-Methyl-2-(pyridin-4-yl)thiazole-5-carboxylic acid

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

Setoguchi, Masaki; Iimura, Shin; Sugimoto, Yuuichi; Yoneda, Yoshiyuki; Chiba, Jun; Watanabe, Toshiyuki; Muro, Fumihito; Iigo, Yutaka; Takayama, Gensuke; Yokoyama, Mika; Taira, Tomoe; Aonuma, Misato; Takashi, Tohru; Nakayama, Atsushi; Machinaga, Nobuo published an article on February 1 ,2012. The article was titled 《Identification of trans-4-[1-[[7-fluoro-2-(1-methyl-3-indolyl)-6-benzoxazolyl]acetyl]-(4S)-fluoro-(2S)-pyrrolidinylmethoxy]cyclohexanecarboxylic acid as a potent, orally active VLA-4 antagonist》, and you may find the article in Bioorganic & Medicinal Chemistry.Computed Properties of C7H3BrFNS The information in the text is summarized as follows:

For the purpose of obtaining orally potent VLA-4 inhibitors, we have carried out structural modification of the (N’-phenylureido)phenyl group in compound 1, where the group was found to be attributed to poor pharmacokinetic profile in our previous research. Through modification, we have identified several compounds with both potent in vitro activity and improved oral exposure. In particular, compound 7e with 7-fluoro-2-(1-methyl-1H-indol-3-yl)-1,3-benzoxazolyl group as a novel replacement of the (N’-phenylureido)phenyl group significantly inhibited eosinophil infiltration into bronchoalveolar lavage fluid at 15 mg/kg in an Ascaris-antigen-induced murine bronchial inflammatory model, and its efficacy was comparable to that of the anti-mouse α4 antibody (R1-2). In addition to this study using 2-Bromo-6-fluorobenzothiazole, there are many other studies that have used 2-Bromo-6-fluorobenzothiazole(cas: 152937-04-7Computed Properties of C7H3BrFNS) was used in this study.

2-Bromo-6-fluorobenzothiazole(cas: 152937-04-7) belongs to thiazoles. Thiazoles are a class of five-membered rings containing nitrogen and sulfur with excellent antitumor, antiviral and antibiotic activities.Computed Properties of C7H3BrFNSTheir 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

Application of 95-24-9On March 25, 2021, Mishra, Chandra Bhushan; Kumari, Shikha; Angeli, Andrea; Bua, Silvia; Mongre, Raj Kumar; Tiwari, Manisha; Supuran, Claudiu T. published an article in Journal of Medicinal Chemistry. The article was 《Discovery of Potent Carbonic Anhydrase Inhibitors as Effective Anticonvulsant Agents: Drug Design, Synthesis, and In Vitro and In Vivo Investigations》. The article mentions the following:

Two sets of benzenesulfonamide-based effective human carbonic anhydrase (hCA) inhibitors have been developed using the tail approach. The inhibitory action of these novel mols. was examined against four isoforms: hCA I, hCA II, hCA VII, and hCA XII. Most of the mols. disclosed low to medium nanomolar range inhibition against all tested isoforms. Some of the synthesized derivatives selectively inhibited the epilepsy-involved isoforms hCA II and hCA VII, showing low nanomolar affinity. The anticonvulsant activity of selected sulfonamides was assessed using the maximal electroshock seizure (MES) and s.c. pentylenetetrazole (s.c.-PTZ) in vivo models of epilepsy. These potent CA inhibitors effectively inhibited seizures in both epilepsy models. The most effective compounds17(I) and 22(II) showed long duration of action and abolished MES-induced seizures up to 6 h after drug administration. These sulfonamides were found to be orally active anticonvulsants, being nontoxic in neuronal cell lines and in animal models. The experimental process involved the reaction of 6-Chlorobenzothiazol-2-ylamine(cas: 95-24-9Application of 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.Application of 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

Recommanded Product: 30931-67-0On November 30, 2020 ,《Eosin Y as a high-efficient photooxidase mimic for colorimetric detection of sodium azide》 appeared in Analytical and Bioanalytical Chemistry. The author of the article were Wang, Junren; Yu, Haili; He, Yi. The article conveys some information:

Abstract: The reported fluorescent dye-based artificial light-responsive oxidase mimics are suffering from their low catalytic efficiency. To overcome the limitation, we report the photooxidase-mimicking activity of Eosin Y which can catalyze the oxidation of various chromogenic substrates such as 3,3′,5,5′-tetramethylbenzydine (TMB), 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS), 3,3′-diaminobenzidine (DAB), and o-phenylenediamine (OPD) by dissolved oxygen. The photooxidase-like activity of Eosin Y is highly efficient for TMB substrate, and its catalytic efficiency is higher than that of the reported fluorescein (130 fold) and 9-mesityl-10-methylacridinium ion (7.7-fold) mimetic photooxidase. Moreover, the photosensitized Eosin Y-TMB chromogenic system is utilized for colorimetric detection of highly toxic and explosive sodium azide (NaN3) in a linear range from 5 to 500 μM with a limit of detection of 3.5 μM. The resulting colorimetric assay is selective and applied to determine NaN3 in real lake water samples. The experimental part of the paper was very detailed, including the reaction process of ABTS Diammonium(cas: 30931-67-0Recommanded Product: 30931-67-0)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Amine, any member of a family of nitrogen-containing organic compounds that is derived, either in principle or in practice, from ammonia (NH3). Naturally occurring amines include the alkaloids, which are present in certain plants; the catecholamine neurotransmitters (i.e., dopamine, epinephrine, and norepinephrine); and a local chemical mediator, histamine, that occurs in most animal tissues.Recommanded Product: 30931-67-0

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

《Programmable and Reversible Regulation of Catalytic Hemin@MOFs Activities with DNA Structures》 was written by Liu, Shuo; Yang, Mingjie; Guo, Weiwei. Electric Literature of C18H24N6O6S4 And the article was included in Chemical Research in Chinese Universities on April 30 ,2020. The article conveys some information:

Abstract: Metal-organic frameworks(MOFs)-based nanozyme plays an important role in biosensing, therapy and catalysis. In this study, the effects of single-stranded DNA(ssDNA) with programmable sequences and its complementary DNA(TDNA) on the intrinsic peroxidase-like activity of hemin loaded MOFs(UiO-66-2), denoted as hemin@UiO-66-NH2, were investigated. The hemin@UiO-66-2 exhibited improved catalytic activity compared with free hemin. However, the catalytic activity is inhibited in the presence of ssDNA, as ssDNA can be adsorbed by MOFs and therefore protected the active sites from contact with substrates. Upon the addition of the TDNA, double-stranded DNA(dsDNA) was formed and detached from the MOFs, resulting in the recovery of catalytic activity. Sequentially adding ssDNA or its complementary DNA strands can achieve the reversible regulation of the catalytic activity of MOFs nanozymes. Moreover, the DNA hybridization-based regulation was further applied to a cascaded catalytic system composed of the nanozyme, hemin@UiO-66-NH2, and glucose oxidase. These nanozyme based programmable and reversibly regulated catalytic systems may have potential applications in future smart biosensing and catalysis systems. In addition to this study using ABTS Diammonium, there are many other studies that have used ABTS Diammonium(cas: 30931-67-0Electric Literature of C18H24N6O6S4) was used in this study.

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Amines characteristically form salts with acids; a hydrogen ion, H+, adds to the nitrogen. With the strong mineral acids (e.g., H2SO4, HNO3, and HCl), the reaction is vigorous. Salt formation is instantly reversed by strong bases such as NaOH. Neutral electrophiles (compounds attracted to regions of negative charge) also react with amines; alkyl halides (R′X) and analogous alkylating agents are important examples of electrophilic reagents.Electric Literature of C18H24N6O6S4

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

《Methionine augments antioxidant activity of rice protein during gastrointestinal digestion》 was published in International Journal of Molecular Sciences in 2019. These research results belong to Li, Hui; Wang, Zhengxuan; Liang, Mingcai; Cai, Liang; Yang, Lin. Computed Properties of C18H24N6O6S4 The article mentions the following:

To elucidate the influence of methionine, which is an essential sulfur-containing amino acid, on the antioxidant activity of rice protein (RP), methionine was added to RP (RM). The addition of methionine to RM0.5, RM1.0, RM1.5, RM2.0, and RM2.5 was 0.5-, 1.0-, 1.5-, 2.0-, and 2.5-fold of methionine of RP, resp. Using the in vitro digestive system, the antioxidant capacities of scavenging free radicals (superoxide; nitric oxide; 2,2′-azinobis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt, ABTS), chelating metal (iron), and reducing power were investigated in the hydrolyzates of RP and RMs. Upon pepsin-pancreatin digestion, the weakest antioxidant capacity was produced by RP. With the addition of methionine, RMs exhibited more excellent responses to free radical scavenging activities and reducing power than RP, whereas RMs did not produce the marked enhancements in iron chelating activity as compared to RP. The present study demonstrated that RMs differently exerted the free radical scavenging activities that emerged in the protein hydrolyzates, in which the strongest scavenging capacities for ABTS, superoxide, and nitric oxide were RM1.5, RM2.0, and RM2.5, resp. Results suggested that the availability of methionine is a critical factor to augment antioxidant ability of RP in the in vitro gastrointestinal tract. In the part of experimental materials, we found many familiar compounds, such as ABTS Diammonium(cas: 30931-67-0Computed Properties of C18H24N6O6S4)

ABTS Diammonium(cas: 30931-67-0) belongs to anime. Reduction of nitro compounds, RNO2, by hydrogen or other reducing agents produces primary amines cleanly (i.e., without a mixture of products), but the method is mostly used for aromatic amines because of the limited availability of aliphatic nitro compounds. Reduction of nitriles and oximes (R2C=NOH) also yields primary amines.Computed Properties of C18H24N6O6S4

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

Recommanded Product: 3034-22-8In 2011 ,《Thiazolides as Novel Antiviral Agents. 1. Inhibition of Hepatitis B Virus Replication》 was published in Journal of Medicinal Chemistry. The article was written by Stachulski, Andrew V.; Pidathala, Chandrakala; Row, Eleanor C.; Sharma, Raman; Berry, Neil G.; Iqbal, Mazhar; Bentley, Joanne; Allman, Sarah A.; Edwards, Geoffrey; Helm, Alison; Hellier, Jennifer; Korba, Brent E.; Semple, J. Edward; Rossignol, Jean-Francois. The article contains the following contents:

The syntheses and activities of a wide range of thiazolides [viz., 2-hydroxyaroyl-N-(thiazol-2-yl)amides] against hepatitis B virus replication, with results of QSAR anal. are reported. The prototypical thiazolide, nitazoxanide [2-hydroxybenzoyl-N-(5-nitrothiazol-2-yl)amide, NTZ] I, is a broad spectrum antiinfective agent effective against anaerobic bacteria, viruses, and parasites. By contrast, 2-hydroxybenzoyl-N-(5-chlorothiazol-2-yl)amide II is a novel, potent, and selective inhibitor of hepatitis B replication (EC50 = 0.33 μm) but is inactive against anaerobes. Several 4′- and 5′-substituted thiazolides show good activity against HBV; by contrast, some related salicyloylanilides show a narrower spectrum of activity. The ADME properties of II are similar to I, viz., the O-acetate is an effective prodrug, and the O-aryl glucuronide is a major metabolite. The QSAR study shows a good correlation of observed EC90 for intracellular virions with thiazolide structural parameters. Finally the mechanism of action of thiazolides in relation to the present results is discussed. The results came from multiple reactions, including 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. Acylation is one of the most important reactions of primary and secondary amines; a hydrogen atom is replaced by an acyl group (a group derived from an acid, such as RCOOH or RSO3H, by removal of ―OH, such as RC(=O)―, RS(O)2―, and so on). Reagents may be acid chlorides (RCOC1, RSO2C1), anhydrides ((RCO)2O), or even esters (RCOOR′); the products are amides of the corresponding acids.Recommanded Product: 3034-22-8

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

Quality Control of 5-Bromothiazol-2-amineIn 2013 ,《Design, synthesis and biological evaluation of novel aminothiazoles as antiviral compounds acting against human rhinovirus》 was published in Bioorganic & Medicinal Chemistry Letters. The article was written by Decor, Anne; Grand-Maitre, Chantal; Hucke, Oliver; O’Meara, Jeff; Kuhn, Cyrille; -Forget, Lea Constantineau; Brochu, Christian; Malenfant, Eric; Bertrand-Laperle, Megan; Bordeleau, Josee; Ghiro, Elise; Pesant, Marc; Fazal, Gulrez; Gorys, Vida; Little, Michael; Boucher, Colette; Bordeleau, Sylvain; Turcotte, Pascal; Guo, Tim; Garneau, Michel; Spickler, Catherine; Gauthier, Annick. The article contains the following contents:

Herein the design, synthesis and biol. evaluation of antiviral compounds acting against human rhinovirus (HRV) are described. A series of aminothiazoles I [X = CH, N; R1 = H, Me; R2 = F3CCH2CHMe, cis-4-methoxycyclohexyl, benzyl(4-pyridylcarbonyl)aminomethyl, etc.] demonstrated pan-activity against the HRV genotypes screened and productive structure-activity relationships. A comprehensive investigational library was designed and performed allowing the identification of potent compounds with lower mol. weight and improved ADME profile. The compounds I [X = N; R1 = Me; R2 = F3CCH2CHMe (both enantiomers), F3CCH2CMe2] showed good exposures in CD-1 mice. The mechanism of action was discovered to be a host target: the lipid kinase phosphatidylinositol 4-kinase III beta (PI4KIIIss). The identification of the pan-HRV active compound I (X = N; R1 = Me; R2 = F3CCH2CMe2) combined with a structurally distinct literature compound T-00127-HEV1 allowed the assessment of target related tolerability of inhibiting this kinase for a short period of time in order to prevent HRV replication. In the experiment, the researchers used 5-Bromothiazol-2-amine(cas: 3034-22-8Quality Control of 5-Bromothiazol-2-amine)

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.Quality Control of 5-Bromothiazol-2-amine

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