Results 21 to 30 of about 32,424 (300)

Cu(OH)x: Clay Catalyst Promoted Synthesis of 4,5-dihydro-1,2,4-oxadiazole at Room Temperature

Orbital: The Electronic Journal of Chemistry, 2017
An easy and efficient scheme is described designed for the preparation of 4,5-dihydro-1,2,4-oxadiazole using recyclable Cu(OH)x-Clay heterogeneous catalyst at room temperature.
Bashir Ahmad Dar, Zahed Zaheer, Samreen Fatema, Mazahar Farooqui   +3 more
doaj   +3 more sources

New Deoxycholic Acid Derived Tyrosyl-DNA Phosphodiesterase 1 Inhibitors Also Inhibit Tyrosyl-DNA Phosphodiesterase 2

Molecules, 2021
A series of deoxycholic acid (DCA) amides containing benzyl ether groups on the steroid core were tested against the tyrosyl-DNA phosphodiesterase 1 (TDP1) and 2 (TDP2) enzymes.
Oksana V. Salomatina, Nadezhda S. Dyrkheeva, Irina I. Popadyuk, Alexandra L. Zakharenko, Ekaterina S. Ilina, Nina I. Komarova, Jóhannes Reynisson, Nariman F. Salakhutdinov, Olga I. Lavrik, Konstantin P. Volcho   +9 more
doaj   +1 more source

The oxadiazole antibacterials [PDF]

Current Opinion in Microbiology, 2016
The oxadiazoles are a class of antibacterials discovered by in silico docking and scoring of compounds against the X-ray structure of a penicillin-binding protein. These antibacterials exhibit activity against Gram-positive bacteria, including against methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococcus (VRE).
Jeshina, Janardhanan, Mayland, Chang, Shahriar, Mobashery   +2 more
openaire   +2 more sources

SET activation of nitroarenes by 2-azaallyl anions as a straightforward access to 2,5-dihydro-1,2,4-oxadiazoles

Nature Communications, 2021
Oxadiazoles are five-membered ring heterocycles comprising an oxygen and two nitrogens, and those with the 1,2,4-oxadiazole skeleton are of interest due to their prevalence in biologically active compounds.
Dong Zou, Lishe Gan, Fan Yang, Huan Wang, Youge Pu, Jie Li, Patrick J. Walsh   +6 more
doaj   +1 more source

Investigation on Quantitative Structure-Activity Relationships of 1,3,4 Oxadiazole Derivatives as Potential Telomerase Inhibitors [PDF]

, 2018
The published manuscript is available at EurekaSelect via http://www.eurekaselect.com/164022/article, DOI : 10.2174/1570163815666180724113208. © 2018 Bentham ScienceA series of 1,3,4-oxadiazole derivatives with significant broad-spectrum anticancer ...
Almerico, Anna Maria, Pecoraro, Beatrice, Tutone, Marco   +2 more
core   +2 more sources

Photoredox Catalysis Enables Decarboxylative Cyclization with Hypervalent Iodine(III) Reagents: Access to 2,5-Disubstituted 1,3,4-Oxadiazoles.

Organic Letters, 2020
A novel approach to 2,5-disubstituted 1,3,4-oxadiazoles derivatives via a decarboxylative cyclization reaction by photoredox catalysis between commercially available α-oxocarboxylic acids and hypervalent iodine(III) reagent is described.
Jian Li, Xuechen Lu, Yue Xu, Jin-Xia Wen, Guoyu Hou, Li Liu   +5 more
semanticscholar   +1 more source

Bioactive Oxadiazoles 2.0

International Journal of Molecular Sciences, 2022
Oxadiazoles are electron-poor, five-membered aromatic heterocycles that contain one oxygen and two nitrogen atoms [...]
openaire   +2 more sources

Metal-free hydroarylation of the side chain carbon–carbon double bond of 5-(2-arylethenyl)-3-aryl-1,2,4-oxadiazoles in triflic acid

Beilstein Journal of Organic Chemistry, 2017
The metal-free reaction of 5-(2-arylethenyl)-3-aryl-1,2,4-oxadiazoles with arenes in neat triflic acid (TfOH, CF3SO3H), both under thermal and microwave conditions, leads to 5-(2,2-diarylethyl)-3-aryl-1,2,4-oxadiazoles.
Anna S. Zalivatskaya, Dmitry S. Ryabukhin, Marina V. Tarasenko, Alexander Yu. Ivanov, Irina A. Boyarskaya, Elena V. Grinenko, Ludmila V. Osetrova, Eugeniy R. Kofanov, Aleksander V. Vasilyev   +8 more
doaj   +1 more source

Microwave-Assisted Synthesis of Unsymmetrical 5-Phenyl-1,3,4-oxadiazoles Containing Bis(carboxymethyl)amino Group

Applied Sciences, 2023
New derivatives of 5-phenyl-1,3,4-oxadiazole substituted at position 2 with (bromomethyl)phenyl or bromoalkyl groups were obtained via microwave-assisted cyclodehydration of unsymmetrical N,N′-diacylhydrazines.
Marcin Łuczyński, Agnieszka Kudelko
doaj   +1 more source

Synthesis and reactions of 1-amino-1,5,6,10b-tetrahydroimidazo[2,1-a]isoquinolin-2(3H)-ones [PDF]

, 2008
1-Amino-1,5,6,10b-tetrahydroimidazo[2,1-a]isoquinolin-2(3H)-ones, as previously unknown ring-annelated isoquinolines with a 3-aminoimidazolidin-4-one scaffold, were selectively prepared upon reacting 2-carbamoylmethyl- or 2-ethoxycarbonylmethyl-3,4 ...
De Kimpe, Norbert, Holzer, Wolfgang, Mangelinckx, Sven, Martynaitis, Vytas, Solovjova, Joana, Šačkus, Algirdas   +5 more
core   +2 more sources