Day: March 28, 2022

Hanke, Thomas; Dehm, Friederike; Liening, Stefanie; Popella, Sven-Desiderius; Maczewsky, Jonas; Pillong, Max; Kunze, Jens; Weinigel, Christina; Barz, Dagmar; Kaiser, Astrid; Wurglics, Mario; Laemmerhofer, Michael; Schneider, Gisbert; Sautebin, Lidia; Schubert-Zsilavecz, Manfred; Werz, Oliver published an article about the compound: 4-(4-Bromophenyl)-5-methylthiazol-2-amine( cas:65705-44-4,SMILESS:NC1=NC(C2=CC=C(Br)C=C2)=C(C)S1 ).SDS of cas: 65705-44-4. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:65705-44-4) through the article.

Dual inhibition of microsomal prostaglandin E2 synthase-1 (mPGES-1) and 5-lipoxygenase (5-LO) is currently pursued as potential pharmacol. strategy for treatment of inflammation and cancer. Here we present a series of 26 novel 2-aminothiazole-featured pirinixic acid derivatives as dual 5-LO/mPGES-1 inhibitors with improved potency (exemplified by compound 2-[(4-chloro-6-{[4-(naphthalen-2-yl)-1,3-thiazol-2-yl]-amino}-pyrimidin-2-yl)-sulfanyl]-octanoic acid (I) with IC50 = 0.3 and 0.4 μM, resp.) and bioactivity in vivo. Computational anal. presumes binding sites of I at the tip of the 5-LO catalytic domain and within a subpocket of the mPGES-1 active site. Compound I (10 μM) hardly suppressed cyclooxygenase (COX)-1/2 activities, failed to inhibit 12/15-LOs, and is devoid of radical scavenger properties. Finally, compound I reduced vascular permeability and inflammatory cell infiltration in a zymosan-induced mouse peritonitis model accompanied by impaired levels of cysteinyl-leukotrienes and prostaglandin E2. Together, 2-aminothiazole-featured pirinixic acids represent potent dual 5-LO/mPGES-1 inhibitors with an attractive pharmacol. profile as anti-inflammatory drugs.

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Reference:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Quality Control of 1-(2,4-Difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanone. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 1-(2,4-Difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanone, is researched, Molecular C10H7F2N3O, CAS is 86404-63-9, about 1-(2,4-Difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanol. Author is Kesternich, Victor; Nelson-Gonzalez, Ronald; Perez-Fehrmann, Marcia; Cardenas, Alejandro; Brito, Ivan.

In the title compound, C10H9F2N3O, the dihedral angle between the mean planes of the triazole and benzene rings is 20.6 (2)°. In the crystal, mols. are linked by strong O-H··· N hydrogen bonds into chains with graph-set notation C(9) along [100]. Weak C-H···N and C-H···F interactions are also observed Crystallog. data are given.

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Reference:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 6-Methylnicotinic acid, is researched, Molecular C7H7NO2, CAS is 3222-47-7, about Solvent-Dependent Chemoselective and Stereoselective Approach to Synthesis of Spiro-γ-Lactams with Potent Anticancer Activity, the main research direction is spiro dihydropyrrole chromenopyrrole dione preparation antitumor.Reference of 6-Methylnicotinic acid.

Chemoselective approaches were developed for derivatizing diastereoselective chromanone spiro-γ-lactams through the Michael-type addition by using amide as a weak nucleophile to construct the spiro-carbon center under basic conditions. To expand the scope of this post-Ugi cascade reaction, a new series of oxidized chromone derivatives Iand II [R1 = H, Me, Cl, etc.; R2 = Ph, 2-thienyl, 1,3-benzodioxol-5-yl, etc.; R3 = 2,6-dimethylphenyl, 4-methoxyphenyl, 1-naphthyl, etc.] was synthesized by altering solvent from EtOH to DMF. Compounds II [R1 = H; R2 = 1,3-benzodioxol-5-yl, 4-nitrophenyl; R3 = 2,6-dimethylphenyl] which could be synthesized in one day, demonstrated comparable anticancer activities with legendary anticancer drug paclitaxel in the PANC and U87 cell lines. This methodol. offers a new approach to construct spiro-carbon centers with functionalized chromanones or chromones under mild reaction conditions.

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Reference:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

Recommanded Product: 1-(2,4-Difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanone. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 1-(2,4-Difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanone, is researched, Molecular C10H7F2N3O, CAS is 86404-63-9, about Design, synthesis, and biological evaluation of novel triazole derivatives as inhibitors of cytochrome P450 14α-demethylase. Author is Chai, Xiaoyun; Zhang, Jun; Hu, Honggang; Yu, Shichong; Sun, Qingyan; Dan, Zhigang; Jiang, Yuanying; Wu, Qiuye.

Based on the results of computational docking to the active site of the cytochrome P 450 14α-demethylase (CYP51), a series of 1-(1H-1,2,4-triazole-1-yl)-2-(2,4-difluorophenyl)-3-substituted-2-propanols I (R = H, 2-F, 2,4-Cl2, 4-MeO2C, PhO2C, etc.) as analogs of fluconazole were designed, synthesized, and evaluated as antifungal agents. The MIC80 values indicate that compounds I (R = H, 2-F, 4-Me, etc.) exhibited higher activity against nearly all fungi tested except Aspergillus fumigatus than fluconazole, while I (R = COOR1, R1 = Me, Et, iso-Pr, COOAr, etc.; Ar = Ph, 3-O2NC6H4, 4-ClC6H4, 2-MeO2CC6H4, etc.) showed no activity or only moderate activity against all fungi tested. Noticeably, the MIC value of I (R = H, 2-F, 4-Cl) is 64 times lower than that of fluconazole against Microsporum gypseum in vitro. And I (R = H, 2-F, CO2Et) showed 128 times higher activity (with the MIC80 value of 0.0039 μg/mL) than that of fluconazole against Candida albicans and also showed higher activity than that of the other pos. controls. Computational docking experiments indicated that the inhibition of CYP51 involves a coordination bond with iron of the heme group, the hydrophilic H-bonding region, the hydrophobic region, and the narrow hydrophobic cleft. In addition, the activity of the compounds would be enhanced when the side chains were shorter.

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Reference:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Discovery of quinolone derivatives as antimycobacterial agents, published in 2021, which mentions a compound: 3222-47-7, Name is 6-Methylnicotinic acid, Molecular C7H7NO2, HPLC of Formula: 3222-47-7.

In this report, a compound library was screened and identified compound I with antituberculosis activity and a minimal inhibitory concentration (MIC) against M. tuberculosis of 20μg mL-1. Structure optimization and the structure-activity relationship of 1 as the lead compound enabled the design and synthesis of a series of quinolone derivatives, e.g, II. These compounds were evaluated in vitro for anti-tubercular activity against the M. tuberculosis H37Rv strain. Among them, compounds III [n = 1; R = 3′,5′-dimethoxy-[1,1′-biphenyl], 4-(trifluoromethyl)phenyl, 6-(trifluoromethyl)pyridin-3-yl (IV)] exhibited MIC values in the range of 1.2-3μg mL-1 and showed excellent activity against the tested MDR-TB strain (MIC: 3, 2.9 and 0.9μg mL-1, resp.). All three compounds III were non-toxic toward A549 and Vero cells (>100 and >50μg mL-1, resp.). In addition, an antibacterial spectrum test carried out using compound (IV) showed that this compound specifically inhibits M. tuberculosis. These can serve as a new starting point for the development of anti-TB agents with therapeutic potential.

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Reference:
1,2,3-Triazole – Wikipedia,
Triazoles – an overview | ScienceDirect Topics