نتایج جستجو برای: Thiazole
تعداد نتایج: 1980 فیلتر نتایج به سال:
The present paper describes the biosynthesis of the thiamin thiazole in Bacillus subtilis and Saccharomyces cerevisiae. The two pathways are quite different: in B. subtilis, the thiazole is formed by an oxidative condensation of glycine, deoxy-D-xylulose 5-phosphate and a protein thiocarboxylate, whereas, in S. cerevisiae, the thiazole is assembled from glycine, NAD and Cys205 of the thiazole s...
Approximately 6% of dog platelets are positive for staining with thiazole orange, a dye frequently used to stain ribonucleic acid. In this report, thiazole-orange positivity is shown to mark platelets that are less than 24 hours old. Dog platelets were derivatized in vivo with N-hydroxysuccinimido biotin such that greater than 95% of all platelets were biotinylated. Newly synthesized, nonbiotin...
introduction: escherichia coli is one of the important pathogens in human with global importance. because of the necessity for identification and the use of novel antibacterial compounds against e. coli , in this present study we focused on the antibacterial effects of synthesized thiazole, imidazole and tetrahydropyridine derivatives on e. coli . methods : for evaluation of antibacterial eff...
purpose: in this study, we have focused on antibacterial effect of newly synthesized thiazole, imidazole and tetrahydropyrimidine derivatives in iran on listeria monocytogenes. materials and methods: for evaluation of antibacterial effect, the disk diffusion method was applied to measure the growth inhibition zone diameter and broth micro dilution was performed to determine the minimum inhibito...
Purpose: In this study, we have focused on antibacterial effect of newly synthesized thiazole, imidazole and tetrahydropyrimidine derivatives in Iran on listeria monocytogenes. Materials and Methods: For evaluation of antibacterial effect, the disk diffusion method was applied to measure the growth inhibition zone diameter and broth micro dilution was performed to determine the minimum inhib...
starting from readily available 2-substituted-4-methylthiazole-5-carboxylic acid hydrazide (1), the title compounds were prepared. the reaction of compound 1 (r=ch3) with formic acid yielded 1-(formyl)-2-(2,4-dimethylthiazole-5-carboxyl) hydrazine (2). refluxing the latter with phosphorous pentasulfide in xylene afforded compound 3, the reaction of compound 2 with phosphorous pentoxide afforded...
In this study, we report a novel hydrate former that acts as structure II (sII) and thermodynamic inhibitor. Thiazole is an aromatic five-ringed molecule with two heteroatoms. forms sII crystal small CH4 CO2 molecules. The Rietveld refinement result of (CH4 + thiazole) positions the thiazole off center 51264 cages, S N atoms face O at apex pentagonal faces one hexagonal cage, respectively. Cons...
A series of multidentate N-donor ligands have been synthesised all containing pyridyl and pyridyl/thiazole units and their coordination behaviour is described. The ligands are classified into four types; i) terpyridine containing pyridyl/thiazole ligands (L); ii) pyridyl/thiazole ligands containing a 3,3′-disubstituted bipyridine core. (L); iii) 2,2′-bipyridine containing a crown ether moiety (...
> introduction: escherichia coli is one of the important pathogens in human with global importance. because of the necessity for identification and the use of novel antibacterial compounds against e. coli , in this present study we focused on the antibacterial effects of synthesized thiazole, imidazole and tetrahydropyridine derivatives on e. coli . methods : for evaluation of antibacterial eff...
Xanthones and benzothiazoles are important classes of heterocyclic compounds with versatile biological activities. Herein, we describe a straightforward scalable synthesis 5-chloro-6-oxo-6H-xantheno[4,3-d]thiazole-2-carbonitrile, thiazole-fused xanthone, via six-step approach, using Appel’s salt for the thiazole ring. The xanthone was fully characterized employing 1H 13C NMR spectra, direct lon...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید