نتایج جستجو برای: 134 thiadiazole

تعداد نتایج: 14006  

2013
Sylvie M. Mimche Beatrice A. Nyagode Matthew D. Merrell Choon-Myung Lee Nina S. Prasanphanich Richard D. Cummings Edward T. Morgan

Inflammation and infection downregulate the activity and expression of cytochrome P450s (P450s) and other drug metabolizing enzymes (DMEs) involved in hepatic drug clearance. Schistosoma mansoni infection was reported to cause a downregulation of hepatic P450-dependent activities in mouse liver, but little is known about the specific enzymes affected or whether phase II DMEs are also affected. ...

Journal: :Organic letters 2011
Yen-Ju Cheng Chiu-Hsiang Chen Yu-Ju Ho Shu-Wei Chang Henryk A Witek Chain-Shu Hsu

Nitrogen-bridged donor-acceptor multifused dithienopyrrolobenzothiadiazole (DTPBT) and dibenzothiadiazolopyrrolothiophene (DBTPT) were successfully synthesized by intramolecular Cadogan annulation. The electron-deficient benzothiadiazole unit in DTPBT can be converted to benzoselenadiazole and quinoxaline moieties through reduction/cyclization to generate dithienopyrrolobenzoselenadiazole (DTPB...

2010
Mehmet Gumus Serdar Ugras Oktay Algin Haldun Gundogdu

Acinar cell tumors of the pancreas are uncommon and they include acinar cell carcinomas, acinar cell cystadenocarcinomas and acinar cell cystadenomas (ACCs) (1-5). These tumors are composed of typical round or cylindrical cells with eosinophilic periodic acid stain (PAS)positive cytoplasmic granules. On immunohistochemical analysis, they express pancreatic enzymes, and electron microscopy demon...

Journal: :journal of pharmaceutical and health sciences 0

hie-124 is a new member of ultra-short acting hypnotics’ drug family. in this research, the synthesis ofanalogues of hie-124 drug in the heterocyclic thiazole ring replaced to thiadiazole, will be presented.thiadiazolodiazepines during a two-step reaction starting from the amino thiadiazole resultedfrom-various derivatives of benzoic acid and thiosemicarbazide were synthesized. in the first ste...

2000
Adriana D. Kugler Gilles Saint-Paul

Hiring and Firing Costs, Adverse Selection and Long-Term Unemployment * In this paper, we present a matching model with adverse selection that explains why flows into and out of unemployment are much lower in Europe compared to North America, while employment-to-employment flows are similar in the two continents. In the model, firms use discretion in terms of whom to fire and, thus, low quality...

Journal: :Chemical communications 2014
Yongfa Xie Yoshiaki Shuku Michio M Matsushita Kunio Awaga

Picene, which is an organic p-channel semiconductor and a component of superconductors, was derivatized with a thiadiazole-dioxide moiety to afford a novel acceptor molecule (PTDAO₂). PTDAO₂ can form stable anion radical species in solution and as a crystal, and its neutral crystalline thin film exhibits n-type transistor characteristics.

Journal: :The Canadian Field-Naturalist 2021

Journal: :Folia histochemica et cytobiologica 2011
Małgorzata Juszczak Joanna Matysiak Andrzej Niewiadomy Wojciech Rzeski

The 2-amino-5-(2,4-dihydroxyphenyl)-1,3,4-thiadiazole set are well known compounds with interesting in vitro and in vivo anti-cancer profiles. The aim of this study was an in vitro evaluation of the anti-cancer activity of a new synthesized aminothiadiazole derivative 2-(3-chlorophenyloamino)-5-(2,4-dihydroxyphenyl)- -1,3,4-thiadiazole 4ClABT. The effect on tumor cell proliferation, motility an...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2010
Wael A El-Sayed Omar M Ali Marwa M Hathoot Adel A-H Abdel-Rahman

A number of new substituted 1,2,4-triazole, 1,2,4-triazolo[3,4-b]1,3,4-thiadiazole and 1,2,4-triazolo[3,4-b]1,3,4-thiadiazine derivatives were synthesized and tested for their antimicrobial activity against Bacillus subtilis (Gram-positive), Pseudomonas aeruginosa (Gram-negative), and Streptomyces species (Actinomycetes). The synthesized compounds displayed different degrees of antimicrobial ac...

Journal: :Chemical communications 2008
Alexander V Zakharov Sergey A Shlykov Natalia V Bumbina Elena A Danilova Alexander V Krasnov Mikhail K Islyaikin Georgy V Girichev

The molecular structure of a macrocycle with a 24-membered ring, a thiadiazole-containing expanded heteroazaporphyrinoid, has been, for the first time, directly characterised by a synchronous gas electron diffraction and mass spectrometric experiment and DFT calculations; the molecule has the equilibrium structure of C(3h) symmetry with a planar macrocycle.

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