Category: thiazole

Kotlyar, V. M.; Kolomoitsev, O. O.; Tarasenko, D. O.; Bondarenko, Y. H.; Butenko, S. V.; Buravov, O. V.; Kotlyar, M. I.; Roshal, A. D. published the artcile< Prospective biologically active compounds based on 5-formylthiazole>, Name: Thiazole-5-carboxyaldehyde, the main research area is thiazole pyrimidine benzimidazole chalcone preparation.

Thiazole cycle is a structural element of many compounds which have potential or already proven fungicidal, bactericidal and antiviral activity. A number of compounds and materials with promising antimicrobial effects can be functionalized by introducing the thiazole component into their composition Among them, there are photoreactive materials, complexing agents, convenient building blocks for the synthesis of biol. active compounds etc. A number of synthetic approaches, as well as optimized conditions for obtaining new thiazole-containing compounds, which have the prospect of practical application based on their physicochem. properties and potential biol. activity has been developed.

Functional Materials published new progress about Amidines Role: RCT (Reactant), RACT (Reactant or Reagent). 1003-32-3 belongs to class thiazole, and the molecular formula is C4H3NOS, Name: Thiazole-5-carboxyaldehyde.

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

Feng, Daijun; Barton, George; Scott, Colleen N. published the artcile< Synthesis of 2,5-Dibutyl-3,6-dimethyl-1H,2H,4H,5H-pyrrolo[3,4-c]pyrrole-1,4-dione: A Diketopyrrolopyrrole Scaffold for the Formation of Alkenyldiketopyrrolopyrrole Compounds>, COA of Formula: C4H3NOS, the main research area is dibutyldimethylpyrrolopyrrole dione preparation diketopyrrolopyrrole scaffold; divinyl substituted diketopyrrolopyrrole carbon hydrogen functionalization.

This manuscript describes an unprecedented and efficient synthesis of a new DPP scaffold, 2,5-dibutyl-3,6-dimethyl-1H,2H,4H,5H-pyrrolo[3,4-c]pyrrole-1,4-dione (DMDPP), containing Me groups at the 3,6-positions as a precursor to preparing 3,6-divinyl-substituted DPP compounds Subsequently, following the synthesis of DMDPP, we performed an efficient and mild C-H functionalization of the Me groups with a variety of aromatic aldehydes to synthesize the first examples of 3,6-divinyl-substituted DPP compounds in moderate to good yields.

Organic Letters published new progress about Aldol condensation. 1003-32-3 belongs to class thiazole, and the molecular formula is C4H3NOS, COA of Formula: C4H3NOS.

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

Watanabe, Hiroaki; Yamaori, Satoshi; Kamijo, Shinobu; Aikawa, Kaori; Ohmori, Shigeru published the artcile< In vitro inhibitory effects of sesamin on CYP4F2 activity>, Formula: C11H8N2O3S2, the main research area is microsome CYP4F2 enzyme inhibition sesamin NADPH; CYP4F2; inactivation; inhibition; sesamin.

Sesamin is a major lignan in sesame seeds, and a recent meta-anal. of controlled trials indicated that sesamin intake decreases blood pressure. The antihypertensive effect of sesamin has been suggested to be due to sesamin-mediated suppression of 20-hydroxyeicosatetraenoic acid production catalyzed by CYP4F2. However, the detailed mechanism underlying inhibition of CYP4F2 function by sesamin remains unclear. In this study, the effects of sesamin on catalytic activity of CYP4F2 were investigated in vitro. Sesamin inhibited luciferin-4F2/3 O-dealkylase activity of recombinant human CYP4F2 with an IC50 value of 0.381μM. When preincubated in the presence of reduced NADP (NADPH) for 20 min, sesamin potentiated the inhibition of CYP4F2 activity. Moreover, kinetic anal. of the inactivation revealed that sesamin showed a preincubation time- and concentration-dependent inhibition of CYP4F2 activity yielding a maximal inactivation rate constant (kinact) value of 0.354 min-1 and half-maximal inhibitory concentration (KI) value of 1.12μM. The inactivation of CYP4F2 by sesamin required NADPH. These results indicated that sesamin is a mechanism-based inactivator of human CYP4F2.

Biological & Pharmaceutical Bulletin published new progress about Enzyme inhibition kinetics. 2591-17-5 belongs to class thiazole, and the molecular formula is C11H8N2O3S2, Formula: C11H8N2O3S2.

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

Flipo, Marion; Desroses, Matthieu; Lecat-Guillet, Nathalie; Villemagne, Baptiste; Blondiaux, Nicolas; Leroux, Florence; Piveteau, Catherine; Mathys, Vanessa; Flament, Marie-Pierre; Siepmann, Juergen; Villeret, Vincent; Wohlkonig, Alexandre; Wintjens, Rene; Soror, Sameh H.; Christophe, Thierry; Jeon, Hee Kyoung; Locht, Camille; Brodin, Priscille; Deprez, Benoit; Baulard, Alain R.; Willand, Nicolas published the artcile< Ethionamide Boosters. 2. Combining Bioisosteric Replacement and Structure-Based Drug Design To Solve Pharmacokinetic Issues in a Series of Potent 1,2,4-Oxadiazole EthR Inhibitors>, Electric Literature of 1003-32-3, the main research area is oxadiazole EthR inhibitor preparation structure tuberculosis pharmacokinetics.

Mycobacterial transcriptional repressor EthR controls the expression of EthA, the bacterial monooxygenase activating ethionamide, and is thus largely responsible for the low sensitivity of the human pathogen Mycobacterium tuberculosis to this antibiotic. We recently reported structure-activity relationships of a series of 1,2,4-oxadiazole EthR inhibitors leading to the discovery of potent ethionamide boosters. Despite high metabolic stability, pharmacokinetic evaluation revealed poor mice exposure; therefore, a second phase of optimization was required. Herein a structure-property relationship study is reported according to the replacement of the two aromatic heterocycles: 2-thienyl and 1,2,4-oxadiazolyl moieties. This work was done using a combination of structure-based drug design and in vitro/ex vivo evaluations of ethionamide boosters on the targeted protein EthR and on the human pathogen Mycobacterium tuberculosis. Thanks to this process, we identified compound 42 (BDM41906), which displays improved efficacy in addition to high exposure to mice after oral administration.

Journal of Medicinal Chemistry published new progress about Homo sapiens. 1003-32-3 belongs to class thiazole, and the molecular formula is C4H3NOS, Electric Literature of 1003-32-3.

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

Surendra Kumar, Radhakrishnan; Moydeen, Meera; Al-Deyab, Salem S.; Manilal, Aseer; Idhayadhulla, Akbar published the artcile< Synthesis of new morpholine-connected pyrazolidine derivatives and their antimicrobial, antioxidant, and cytotoxic activities>, SDS of cas: 1003-32-3, the main research area is morpholine pyrazolidine derivative synthesis antimicrobial antioxidant anticancer; Antimicrobial activity; Antioxidant activity; Cytotoxic activity; Morpholine-connected pyrazolidine; Pyrrolidine metal-free catalysis.

A simple and convenient one-pot four-component synthesis of morpholine-connected pyrazolidine derivatives 2a-f and 4a-f was developed using direct metal-free catalysis, with the identities of the synthesized compounds confirmed by IR, NMR (1H and 13C), mass spectrometry, and elemental anal. The prepared compounds were inspected for antimicrobial, antioxidant, and cytotoxic activities. Antimicrobial and antifungal activities against five bacterial and four fungal pathogens, resp., were investigated using the disk diffusion technique. In antibacterial activity, compounds 2d and 2f (I and II, resp., MIC = 2 μg/mL) exhibited significantly higher activity than the standard ciprofloxacin. The results of antifungal assay showed that the activity of compound 4a (IV, MIC = 0.5 μg/mL) was significantly higher than the standard clotrimazole. Antioxidant activity was screened based on ABTS·+ radical scavenging and linoleic acid peroxidation performance. Compound 4a showed substantial antioxidant (91.3%) activities, as compared with the Trolox standard Cytotoxicity was evaluated using HepG2 (liver), HeLa (cervical), and MCF-7 (breast) cancer cell lines, with high toxicities observed for 2b (III, GI50 = 12.2 μm) and 4a (GI50 = 07.8 μm).

Bioorganic & Medicinal Chemistry Letters published new progress about Antibacterial agents. 1003-32-3 belongs to class thiazole, and the molecular formula is C4H3NOS, SDS of cas: 1003-32-3.

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

Singh, Kamaljit; Singh, Sarbjit; Taylor, John A. published the artcile< Monoazo disperse dyes-part 1: synthesis, spectroscopic studies and technical evaluation of monoazo disperse dyes derived from 2-aminothiazoles>, Application of C9H7N3O2S, the main research area is aminothiazole diazo aminoacetanilide coupling component disperse azo dye; polyester fabric disperse dyeing thiadiazole azo dye preparation.

Novel disperse dyes have been prepared from thiazolyl diazonium salts and coupling components based on m-aminoacetanilide derivatives Depending upon various substituents incorporated into the chromophore, absorption maxima varied from 495 to 591 nm in various organic solvents. These dyes were chromophorically strong as evidenced both by molar extinction coefficient in solvent and by strength and build-up on polyester.

Dyes and Pigments published new progress about Disperse azo dyes. 57493-24-0 belongs to class thiazole, and the molecular formula is C9H7N3O2S, Application of C9H7N3O2S.

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

Wang, Fang I.; Ding, Gucci; Ng, Garmen S.; Dixon, S. Jeffrey; Chidiac, Peter published the artcile< Luciferase-based GloSensor cAMP assay: Temperature optimization and application to cell-based kinetic studies>, Recommanded Product: (S)-2-(6-Hydroxybenzo[d]thiazol-2-yl)-4,5-dihydrothiazole-4-carboxylic acid, the main research area is luciferase glosensor cAMP assay temperature optimization kinetics drug discovery; Drug discovery; GPCRs; GloSensor; High-throughput screening; Optimization.

G protein-coupled receptors (GPCRs) are an important receptor superfamily and common therapeutic targets. The second messenger cyclic adenosine monophosphate (cAMP) is a key mediator in many GPCR signaling pathways. Monitoring intracellular cAMP levels can help identify orthosteric agonists and antagonists, as well as allosteric modulators. In this regard, luminescence-based biosensors have revolutionized our ability to monitor GPCR signaling kinetics. The GloSensor cAMP assay enables real-time monitoring of signaling downstream of many GPCRs. However, it is crucial to optimize assay conditions such as temperature As well, it has not been reported whether the effects of temperature on biosensor activity are reversible. Here, we describe the temperature sensitivity and reversibility of the GloSensor cAMP assay, and which GloSensor version is optimal for measuring cytosolic cAMP. We also present a detailed protocol for monitoring cAMP levels in live cells expressing endogenous or exogenous GPCRs. Temperature optimization studies were carried out using HEK293H cells transiently transfected with the adenosine receptor A2a and the GloSensor plasmid (pGloSensor-20F or -22F). We found that preincubation and luminescence reading at room temperature were optimal as compared to higher temperatures As well, the GloSensor-22F biosensor had a superior signal-to-background ratio and the effect of temperature on biosensor activity was reversible. However, thermal instability of the biosensor may pose a problem for in vivo studies. Nevertheless, the GloSensor cAMP assay can be applied to analyze signaling by a wide range of GPCRs for drug discovery purposes.

Methods (Amsterdam, Netherlands) published new progress about Adenosine A2A receptors Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 2591-17-5 belongs to class thiazole, and the molecular formula is C11H8N2O3S2, Recommanded Product: (S)-2-(6-Hydroxybenzo[d]thiazol-2-yl)-4,5-dihydrothiazole-4-carboxylic acid.

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

Fahmy, H. T. Y.; Bekhit, A. A. published the artcile< Synthesis of some new bis-thiazoles as possible anticancer agents>, Reference of 10574-69-3, the main research area is rhodanine preparation antitumor agent.

Several new 5-(2,3-dihydrothiazol-2-ylidenyl)rhodanines I (R1 = Ph; R2 = Ph, 4-ClC6H4, 4-MeC6H4; R3 = H) and 5-(4-oxothiazolidinon-2-ylidenyl)rhodanine II were synthesized through the reaction of 5-thiocarbamoyl rhodanine III [R1 = Ph; R4 = C(S)NHPh] with phenacyl bromides or chloroacetic acid, resp. The synthesis of arylidenes IV (R5 = H, Cl, MeO) was also described. The 5-(4-amino-5-cyano-2,3-dihydrothiazol-2-ylidenyl)rhodanines I (R1 = Ph, CH2Ph; R2 = NH2; R3 = CN) were obtained through reaction of rhodanines III (R1 = Ph, CH2Ph; R4 = H) with a thiazolium salt. All the prepared compounds were screened for their anticancer activity using the in vitro anticancer screening program of the NCI. Three compounds showed promising anticancer activity against particular human cell lines used in the assay.

Pharmazie published new progress about Antitumor agents. 10574-69-3 belongs to class thiazole, and the molecular formula is C10H9NOS2, Reference of 10574-69-3.

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

Lyashchuk, S. N.; Enya, V. I.; Doroshenko, T. F.; Skrypnik, Yu. G. published the artcile< Study of reaction routes in sulfonation of 2-aminothiazoles with chlorosulfonic acid>, HPLC of Formula: 57493-24-0, the main research area is thiazole amine sulfonation thermal isomerization thiazolesulfonic thiazolesulfamic acid preparation; charge distribution thiazole amine AM1 calculation sulfonation mechanism.

The sulfonation of 4-substituted 2-aminothiazoles with chlorosulfonic acid under mild conditions afforded primarily C-sulfonation product, 2-amino-5-thiazolesulfonic acids, which undergo thermal isomerization by heating in sulfuric acid into the corresponding stable 2-thiazolesulfamic acids. Reaction of 4-R-thiazole-2-amines (9-12) with ClSO3H gave 2-amino-4-R-thiazole-5-sulfonic acids (1-4; R = Me, 4-BrC6H4, 3-O2NC6H4, 4-ClC6H4); heating of 1-4 at 110° in concentrate H2SO4 gave 4-R-thiazole-2-sulfamic acids (5-8). Quantum chem. calculations at AM1 level revealed the presence of considerable neg. charge on the C-5 atom of the thiazole ring of 9-12, which accounts for the opposite sulfonation patterns for the aminothiazoles and aniline.

Russian Journal of Organic Chemistry published new progress about AM1 (molecular orbital method). 57493-24-0 belongs to class thiazole, and the molecular formula is C9H7N3O2S, HPLC of Formula: 57493-24-0.

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

Zhang, Zhi-Hua; Wu, Hong-Mei; Deng, Sai-Nan; Cai, Xiao-Yu; Yao, Yu; Mwenda, Muriira Cyrus; Wang, Jin-Yin; Cai, Dong; Chen, Yu published the artcile< Design, synthesis, and anticancer activities of novel 2-amino-4-phenylthiazole scaffold containing amide moieties>, Quality Control of 57493-24-0, the main research area is morpholinoacetamido thiazolylphenyl benzamide preparation anticancer activity.

Appropriately substituted 2-amino-4-phenylthiazole derivatives I (R = 3-CH3C6H4, 4-BrC6H4, 2-furyl, cyclohexyl, CH3OCH2, ClCH2, etc.) were designed and synthesized according to the structural characteriztics of crizotinib. The target compounds I were evaluated for their in vitro antiproliferative activity against A549, HeLa, HT29, and Karpas299 human cancer cell lines. Based on results of biol. studies, some of these compounds exhibited significant antiproliferative activity. Compound I (R = 3,4-Cl2C6H3) possessed outstanding growth inhibitory effects on the four cell lines, especially for HT29 cell with IC50 value of 2.01 μM. Along with the biol. assay data, a mol. docking study suggests that the target compounds were a potential inhibitor.

Journal of Chemistry published new progress about Acid chlorides Role: RCT (Reactant), RACT (Reactant or Reagent). 57493-24-0 belongs to class thiazole, and the molecular formula is C9H7N3O2S, Quality Control of 57493-24-0.

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