نتایج جستجو برای: 3 thiazole

تعداد نتایج: 1812778  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1941
W H Greenleaf

There are other factors which might be studied in relation to the beneficial effect of excess thiazole in the presence of limiting amounts of thiamin or molecularly equivalent quantities of its intermediates. However, it appears clear that the thiazole effect exists under many variations of the conditions under which Phycomyces might be grown in laboratory practice. This is important in the use...

S.D. Srivastava

A new 2-[(4-substituted-phenyl-3-chloroazetidin-2-one)-5-(2'-methylamino 4-phenyl-1', 3'-thiazolyl-]-1, 3, 4-thiadiazoles, 5(a-n) were synthesized from 2-substituted-benzylideneamino-5-[2'-methylamino-4'-phenyl-1',3'-thiazolyl]-1,3, 4-thiadiazole, 4(a-n) using 2-amino-4phenyl-1, 3-thiazole as a starting material. The synthesised compounds have been screened in vitro for their antimicrobial acti...

Journal: :medical laboratory journal 0
behzad ghasemi department of pathobiology, faculty of veterinary medicine, university of zabol mohsen najimi department of chemistry, faculty of basic science, university of zabol hamid beyzaei department of chemistry, faculty of basic science, university of zabol abbas jamshidian department of pathobiology, faculty of veterinary medicine, university of zabol

abstract       background and objectives: antibiotic resistance in bacteria has actuated researchers toward evaluating many new antibacterial compounds of which are the thiazoles. in this research the inhibitory effects of novel thiazole derivatives were unraveled on staphylococcus aureus, streptococcus agalactiae, pseudomonas aeruginosa and klebsiella pneumoniae and oxothiazole liver toxicity ...

Journal: :Iranian journal of microbiology 2015
Behzad Ghasemi Ghasem Sanjarani Zahra Sanjarani Hamidreza Majidiani

BACKGROUND AND OBJECTIVES Bacterial resistance to antibiotics has motivated the researchers to evaluate the novel anti-bacterial compounds such as some thiazole and imidazole derivatives. Thereby, in this work, we investigated the anti-bacterial effects of one new thiazole and two new imidazole derivatives on Bacillus cereus, Listeria monocytogenes, Escherichia coli, Salmonella typhimurium, Pro...

Journal: :Chemical communications 2014
Daniel Beatrup Jessica Wade Laure Biniek Hugo Bronstein Michael Hurhangee Ji-Seon Kim Iain McCulloch James R Durrant

We describe a spectroelectrochemical approach to accelerated electrochemical stability studies of conjugated polymers under oxidative stress. The polaron stabilities of alternating copolymers based on (i) thiophene and thiazole, namely PTTz, and (ii) bithiophene and thiazole, namely PTTTz, are compared in neat films with that of P3HT. P3HT is found to be the most stable whilst PTTz is found to ...

A. Samanta S. B. Bari Suman Adhikari

In the present work, a series of new N’-[{5-(4-aryl) 1,3-thiazol-2yl}carbohydrazide-methyl]- 3(4-arylimino) indol-2-one analogs (5a-g) had heen synthesized from 3-(4-arylimino)-2-oxo- 1-indole-acetylthiosemicarbazide (4a-g) in ethanol, in the presence of phenacyl bromide or substituted phenacyl bromides. The compound 5e was characterized by its elemental analysis, IR, 1 HNMR and Mass Spectrosco...

Journal: :Journal of bacteriology 1982
J Ryals R Y Hsu M N Lipsett H Bremer

A method is described to rapidly select and classify many independent near-UV irradiation-resistant Escherichia coli mutants, which include tRNA modification and RNA synthesis control mutants. One class of these mutants was found to be simultaneously deficient in thiamine biosynthesis and in the ability to modify uridine in tRNA to 4-thiouridine, known to be the target for near-UV irradiation. ...

Mahboobeh Kiamarsi Marzieh Jamali Mohammad Mehdi Ghanbari, Nasimeh Zarei, Pegah Mohagheghzadeh,

Imidazo[2,1-b]thiazoles are obtaind in excellent yields from the addition reaction between thiohydantoin and ethylbromopyruvate. These imidazo[2,1-b]thiazoles in the presence of p-TSA in boiling toluene refluxed for 2.5 hours led to imidazo[2,1-b]thiazole-3-carboxylates in elimination reactions

Mahboobeh Kiamarsi Marzieh Jamali Mohammad Mehdi Ghanbari, Nasimeh Zarei, Pegah Mohagheghzadeh,

Imidazo[2,1-b]thiazoles are obtaind in excellent yields from the addition reaction between thiohydantoin and ethylbromopyruvate.  These imidazo[2,1-b]thiazoles in the presence of p-TSA in boiling toluene refluxed for 2.5 hours led to imidazo[2,1-b]thiazole-3-carboxylates in elimination reactions

Journal: :iranian journal of basic medical sciences 0
ahmad mohammadi-farani novel drug delivery research center, faculty of pharmacy, kermanshah university of medical sciences, kermanshah, iran 2 department of pharmacology, toxicology and medical services, faculty of pharmacy, kermanshah university of medical sciences, kermanshah, iran alireza foroumadi department of medicinal chemistry, faculty of pharmacy and pharmaceutical sciences research center, tehran university of medical sciences, tehran, iran monireh rezvani kashani students research committee, kermanshah university of medical sciences, kermanshah, iran 5 department of medicinal chemistry, faculty of pharmacy, kermanshah university of medical sciences, kermanshah, iran alireza aliabadi novel drug delivery research center, faculty of pharmacy, kermanshah university of medical sciences, kermanshah, iran department of medicinal chemistry, faculty of pharmacy, kermanshah university of medical sciences, kermanshah, iran

objective(s):according to the prevalence of neoplastic diseases, there is a deep necessity for discovery of novel anticancer drugs in the field of medicinal chemistry. in the current study, a new series ofphenylthiazole derivatives(compounds 4a-4f) was synthesizedand theiranticancer activity was assessed in vitro. materials and methods:all synthesized derivatives were evaluated towards three hu...

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