نتایج جستجو برای: arylidene thio barbituric acids

تعداد نتایج: 269441  

Journal: :Molecules 2017
Jianghui Jiang Jiaxi Xu

4-Sulfoalkanoic acids are a class of important dianionic-headed surfactants. Various 4-sulfoalkanoic acids with straight C8, C10, C12, C14, C16, and C18 chains were synthesized expeditiously through the radical addition of methyl 2-((ethoxycarbonothioyl)thio)acetate to linear terminal olefins and subsequent oxidation with peroxyformic acid. This is a useful and convenient strategy for the synth...

Journal: :Organic & biomolecular chemistry 2014
Maryam Nourisefat Farhad Panahi Ali Khalafi-Nezhad

In this study a multicomponent reaction involving carbohydrate derivatives as the main component in order to prepare a new library of polyhydroxy compounds incorporating pyrimidine-fused heterocycles (PFHs) is introduced. A set of polyhydroxy functionalized PFHs were synthesized using multicomponent reactions of sugar (glucose, galactose, arabinose and lactose), barbituric acid and amines. Also...

Journal: :iranian journal of applied animal science 2014
k. rajashree t. muthukumar n. karthikeyan

an experiment was carried out to evaluate and compare the effects of organic and inorganic selenium (se) sources on broiler male birds (ross 308). uniform broiler male chicks divided in to five groups with six replicates were fed with either normal feed (without supplemental se, negative control), 0.25 ppm of inorganic se, 0.5 ppm of inorganic se, 0.25 ppm of inorganic se + 0.25 ppm of organic ...

Journal: :AppliedChem 2023

Novel SF5-bearing maleimide and acrylamide derivatives were synthesised as potential [18F]radio-prosthetic groups for radiolabelling peptides proteins. The efficacy of selected prosthetic was first assessed through bioconjugation with protected model amino acid derivatives. These reactions investigated on an analytical scale via LC-MS across a pH range to quantitatively evaluate this group’s re...

Journal: :Methods in enzymology 1972
A Fontana E Scoffone

The conversion of 2-thio-aryl-tryptophan and related derivatives to the corresponding 2-hydroxycompounds by acidic hydrolysis was investigated. The thioether function is introduced into the tryptophan residue by the selective reaction of sulfenyl halides with the indole nucleus. The sub­ stitution occurs under mild conditions only when the amino group of the tryptophan residue is free. The assi...

Journal: :Journal of environmental biology 2010
Bharat Bhusan Patnaik Atish Roy Soumik Agarwal Shelley Bhattacharya

Sprague Dawley strain of male rats weighing 200 +/- 10.0 g, were exposed intramuscularly to non-lethal dose of mercury for short acute duration of 24 and 48 hr. Mercury treatment increased thio-barbituric acid reactive substance (TBARS) and conjugated diene (CD) content with increase in duration when compared with control. This reflects possible increase in lipid peroxidation, revealing that su...

Meat products, especially fish meat, are very susceptible to lipid oxidation and microbial spoilage. In this study, first, gas chromatography mass spectrometry (GC-MS) analysis of Zataria multiflora essential oil (ZEO) components was done and then two concentrations of ZEO, (1% and 2%) and two concentrations of grape seed extract (GSE), (0.5% and 1%) were used in carboxymethyl cellulos...

Journal: :veterinary research forum 2014
mojtaba raeisi hossein tajik javad aliakbarlu sima valipour

meat products, especially fish meat, are very susceptible to lipid oxidation and microbial spoilage. in this study, first, gas chromatography mass spectrometry (gc-ms) analysis of zataria multiflora essential oil (zeo) components was done and then two concentrations of zeo, (1% and 2%) and two concentrations of grape seed extract (gse), (0.5% and 1%) were used in carboxymethyl cellulose coating...

Journal: :Archives of biochemistry and biophysics 1972
M D Ullman N S Radin

Radioactive 2-hydroxystearic and cerebronic acids were converted to the coensyme A thio esters, then tested for reactivity with n-sphingosine. Microsomes from mouse brain were found to catalyze the formation of ceramides containing both hydroxy acids. Both the Dand L-forms of the hydroxy acids reacted. Comparisons of reactivity were made with stearoyl and lignoceroyl CoA, the analogous nonhydro...

2013
Binhua Zhou Yinglin Zuo Baojian Li Hao Wang Hao Liu Xianfeng Wang Xu Qiu Yun Hu Shijun Wen Jun Du Xianzhang Bu

Proteasome inhibitors have been suggested as potential anticancer agents in many clinical trials. Recent evidence indicates that proteasomal deubiquitinase (DUB) inhibitors, bearing a differentmechanism from that of traditional proteasome inhibitors, would be appropriate candidates for new anticancer drug development. In the present study, we describe the deubiquitinase inhibition of 19S regula...

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