نتایج جستجو برای: imidazoles

تعداد نتایج: 3709  

Journal: :Journal of the Brazilian Chemical Society 2021

Using molecular simplification and hybridization approaches, a series of 2-(benzylthio)-1H-benzo[d]imidazoles was synthesized evaluated as in vitro inhibitors Mycobacterium tuberculosis (M. tuberculosis) growth. Compounds 6p 6z were considered the lead compounds from this molecules, with minimal inhibitory concentration (MIC) values 6.9 3.8 μM against M. H37Rv, respectively. Additionally, leadi...

Journal: :Nucleation and Atmospheric Aerosols 2022

Nitrogen containing heterocyclic compounds have great utility in synthetic, medicinal and material chemistry. Oxazole, isoxazole, thiazole, imidazole their derivatives gained prominence as they constitute the structural features of many bioactive compounds. In fact, amide functionality represents a privileged scaffold biomolecules drugs. The combination two or more heterocycles linked by into o...

Journal: :Organic & biomolecular chemistry 2007
Renata Marcia de Figueiredo Laëtitia Coudray Joëlle Dubois

A novel series of compounds, derived from 2,5-functionalized imidazoles, have been synthesized as potential bisubstrate inhibitors of protein farnesyltransferase (FTase) using structure-based design. These compounds have a 1,4-diacid chain and a tripeptide connected by an imidazole ring. The synthetic strategy relies on the functionalization at the C-2 position of the heterocycle with the diaci...

2012
Peter Decker

Sensitized photooxidation of imidazoles in aqueous solution and in the presence of inorganic phosphate afforded organic phosphates with yields up to 30%. The major phosphorylated product of oxidation of 2-methylimidazole was isolated and identified as the monophosphate of 4,5-dihydroxy-2-methyl-imidazoline with pKa values of 2.0, 5.2, and 9.8. The compound is energy rich in aqueous solution and...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1974
R B Martin

Zinc ion-induced pyrrole hydrogen ionization from a histidyl residue has recently been suggested as the source of the activity-related deprotonation in carbonic anhydrase (EC 4.2.1.1; carbonate hydro-lyase) occurring at pH 7-8. The results offered to support the hypothesis are shown to be deficient. Examination of the literature reveals no precedent for such a pronounced acidification from pK(a...

Journal: :Organic & biomolecular chemistry 2011
Raymond C F Jones Kevin J Howard John S Snaith Alexander J Blake Wang-Shei Li Peter J Steel

N-Alkylation of optically active 1-benzyl-4-phenyl-4,5-dihydroimidazole with active alkyl halides and treatment of the so-formed 4,5-dihydroimidazolium ions with DBU in the presence of a range of electron-deficient alkene dipolarophiles, constitutes a 'one-pot' cascade terminating in a 1,3-dipolar cycloaddition reaction that affords optically active pyrrolo[1,2-a]imidazoles. Three bonds of the ...

2015
Marzieh Amirmostofian Farzad Kobarfard Hamed Reihanfard Vida Mashayekhi Afshin Zarghi

A new series of 1,2-diaryl-4,5,6,7-tetrahydro-1H-benzo[d]imidazoles, possessing trimethoxyphenyl pharmacophore, were synthesized to evaluate their biological activities as tubulin inhibitors. Cytotoxic activity of the synthesized compounds 7a-f was assessed against several human cancer cell lines, including MCF-7 (breast cancer cell), HEPG2 (liver hepatocellular cells), A549 (adenocarcinomic hu...

Journal: :Bioscience, Biotechnology, and Biochemistry 2002

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