نتایج جستجو برای: imidazoles

تعداد نتایج: 3709  

Journal: :Antimicrobial agents and chemotherapy 1981
I J Sud D S Feingold

The three imidazole antimycotics clotrimazole, miconazole, and ketoconazole all inhibit the demethylation of lanosterol to ergosterol, resulting in inhibition of growth of Saccharomyces cerevisiae; this is a fungistatic action. At higher concentrations clotrimazole and miconazole are fungicidal, whereas ketoconazole is not. The fungicidal action reflects direct membrane damage by the imidazoles...

Journal: :Organic & biomolecular chemistry 2012
Michael A Schmidt Martin D Eastgate

A short and efficient synthesis of 1,4-disubstituted imidazoles has been developed which provides the desired products with complete regioselectivity. This protocol allows preparation of compounds which are challenging to prepare by current literature methods in a regioselective fashion, a sterically and electronically diverse range of N-substituents being accessible. The sequence involves an u...

Journal: :Journal of Biological Chemistry 1925

Journal: :Chemical communications 2009
Patrick Loos Matthias Riedrich Hans-Dieter Arndt

2-Imidazolines and imidazoles have been accessed by an aza-Wittig sequence featuring novel N-acylation methodology for sulfonamides and optimized conditions for ring closure.

Journal: :Chemical communications 2011
Juventino J García Paulina Zerecero-Silva Grisell Reyes-Rios Marco G Crestani Alma Arévalo Rigoberto Barrios-Francisco

Nickel(0) catalysts were used to produce substituted imidazoles in good to high yields using benzonitrile, p-substituted benzonitriles and 4-cyanopyridine as starting materials.

Journal: :Drug metabolism and disposition: the biological fate of chemicals 2002
Sanna Kaivosaari Jarmo S Salonen Jyrki Taskinen

N-Glucuronidation in vitro of six 4-arylalkyl-1H-imidazoles (both enantiomers of medetomidine, detomidine, atipamezole, and two other closely related compounds) by rat, dog, and human liver microsomes and by four expressed human UDP-glucuronosyltransferase isoenzymes was studied. Human liver microsomes formed N-glucuronides of 4-arylalkyl-1H-imidazoles with high activity, with apparent V(max) v...

2012
Arthur Kammeyer Charlotte P. Peters Sybren L. Meijer Anje A. te Velde

Urocanic acid (UCA) derivatives were tested for their anti-inflammatory activity in inflammatory bowel disease (IBD) in two models: ex vivo and an experimental mouse model. Ex vivo: inflamed colonic tissue was incubated in culture medium with or without the UCA derivatives. Biopsies, incubated with UCA derivatives, produced lower levels of proinflammatory cytokines IL-6 and IL-8 as compared to ...

Journal: :Acta Chemica Scandinavica 1973

2009
James N. Iley Maria Sanchis-Amat Xiaohui Zhang Mark R.J. Elsegood Raymond C. F. Jones Mark R. J. Elsegood

A catalytic method involving carbenoid insertion onto dihydroimidazoles is reported for the generation of dihydroimidazolium ylides, and their subsequent diastereoselective cycloaddition to form pyrrolo[1,2-a]imidazoles © 2009 Elsevier Science. All rights reserved ———

Journal: :Chemical communications 2012
Shaoyu Li Jie Wu

A novel and straightforward synthetic protocol for the efficient construction of 3',5'-dihydro-1H-spiro[benzo[d]oxepine-2,4'-imidazoles] through a copper(I)-catalyzed reaction between 2-(2-ethynylphenyl)oxirane, sulfonyl azide, and 2-isocyanoacetate is described.

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