Results 21 to 30 of about 24,369 (280)

A modified approach for the synthesis of biologically relevant 5-substituted-2-N-aryl-1,3-oxazole derivatives in mild conditions

Journal of Taibah University for Science, 2020
We herein report a modified approach for the synthesis of some pharmacologically relevant oxazole derivatives linked with amides under mild conditions.
R. Udhayasurian, K. Sivakumar, Ayyiliath M. Sajith, Muthipeedika Nibin Joy   +3 more
doaj   +1 more source

Microhydration Structures of Protonated Oxazole [PDF]

The Journal of Physical Chemistry A, 2019
The initial microhydration structures of the protonated pharmaceutical building block oxazole (Ox), H+Ox-Wn≤4, are determined by infrared photodissociation (IRPD) spectroscopy combined with quantum chemical dispersion-corrected density functional theory calculations (B3LYP-D3/aug-cc-pVTZ).
Kuntal Chatterjee, Otto Dopfer
openaire   +3 more sources

Design, Synthesis, In Vitro Biological Evaluation and In Silico Molecular Docking Study of Benzimidazole-Based Oxazole Analogues: A Promising Acetylcholinesterase and Butyrylcholinesterase Inhibitors

Molecules, 2023
Alzheimer’s disease (AD) is a degenerative neurological condition that severely affects the elderly and is clinically recognised by a decrease in cognition and memory.
Rafaqat Hussain, Fazal Rahim, Hayat Ullah, Shoaib Khan, Maliha Sarfraz, Rashid Iqbal, Faiza Suleman, Mohammad Khalid Al-Sadoon   +7 more
doaj   +1 more source

2,4,5-Tris(pyridin-4-yl)-4,5-dihydro-1,3-oxazole

Acta Crystallographica Section E, 2012
In the title compound, C18H14N4O, the molecules are disordered about a crystallographic twofold axis, leading to 50:50 disorder of the O- and N-atom sites within the oxazole ring. As a consequence, symmetry-related oxazole C—N and C—O
José J. Campos-Gaxiola, Herbert Höpfl, Gerardo Aguirre, Miguel Parra-Hake   +3 more
doaj   +1 more source

2-(Naphthalen-1-yl)-4-(thiophen-2-ylmethylidene)-1,3-oxazol-5(4H)-one

Acta Crystallographica Section E, 2011
The asymmetric unit of the title compound, C18H11NO2S, contains two crystallographically independent molecules. In one molecule, the oxazole and thiophene rings are oriented at dihedral angles of 17.40 (9) and 18.18 (7)° with
Cevher Gündoğdu, Serap Alp, Yavuz Ergün, Barış Tercan, Tuncer Hökelek   +4 more
doaj   +1 more source

Benzobisoxazole cruciforms: a tunable, cross-conjugated platform for the generation of deep blue OLED materials [PDF]

, 2016
Four new cross-conjugated small molecules based on a central benzo[1,2-d:4,5-d′]bisoxazole moiety possessing semi-independently tunable HOMO and LUMO levels were synthesized and the properties of these materials were evaluated experimentally and ...
Cai, Min, Chavez, Ramiro, Jeffries-EL, Malika, Kaudal, Rajiv, Shinar, Joseph, Shinar, Ruth, Tlach, Brian, Tomlinson, Aimee L., Tsyrenova, Ayuna, Wheeler, David L.   +9 more
core   +1 more source

Crystal structure, Hirshfeld surface analysis and DFT study of (2Z)-2-(2,4-dichlorobenzylidene)-4-[2-(2-oxo-1,3-oxazolidin-3-yl)ethyl]-3,4-dihydro-2H-1,4-benzothiazin-3-one

Acta Crystallographica Section E: Crystallographic Communications, 2019
The title compound, C20H16Cl2N2O3S, is built up from a dihydrobenzothiazine moiety linked by –CH– and –C2H4– units to 2,4-dichlorophenyl and 2-oxo-1,3-oxazolidine substituents, where the oxazole ring and the heterocyclic portion of the ...
Brahim Hni, Nada Kheira Sebbar, Tuncer Hökelek, Lhoussaine El Ghayati, Younes Bouzian, Joel T. Mague, El Mokhtar Essassi   +6 more
doaj   +1 more source

Isomerization of 5-(2H-Azirin-2-yl)oxazoles: An Atom-Economic Approach to 4H-Pyrrolo[2,3-d]oxazoles

Molecules, 2021
An atom economical method for the preparation of variously substituted 4H-pyrrolo[2,3-d]oxazoles was developed on the basis of thermal isomerization of 5-(2H-azirin-2-yl)oxazoles.
Timur O. Zanakhov, Ekaterina E. Galenko, Mariya A. Kryukova, Mikhail S. Novikov, Alexander A. Khlebnikov   +4 more
doaj   +1 more source

Ligand selectivity in stabilising tandem parallel folded G-quadruplex motifs in human telomeric DNA sequences [PDF]

, 2014
Biophysical studies of ligand interactions with three human telomeric repeat sequences (d(AGGG(TTAGGG)n, n = 3, 7 and 11)) show that an oxazole-based ‘click’ ligand, which induces parallel folded quadruplexes, preferentially stabilises longer telomeric ...
Alex R. O. Cousins, Balkwill, Bejugam, Biffi, Brooks, De Armond, De Cian, Dougal Ritson, Feng, Fernando, Fletcher, Garner, Grand, Haider, Huppert, John E. Moses, Kim, Kumari, Lingner, Lipps, Malcolm F. G. Stevens, Mark S. Searle, Mergny, Moorhouse, Moorhouse, Nakamura, Neidle, Pallavi Sharma, Petraccone, Petraccone, Randall, Renciuk, Ritson, Searle, Siddiqui-Jain, Todd, Vorlickova, Wang, Xu   +38 more
core   +1 more source

Synthesis and Antibacterial Evaluation of Novel Heterocyclic Compounds Containing a Sulfonamido Moiety

Molecules, 2013
Aiming for the synthesis of new heterocyclic compounds containing a sulfonamido moiety suitable for use as antibacterial agents, the precursor ethyl {[4-N-(4,6-dimethylpyrimidin-2-yl)sulfamoyl]phenylazo}cyanoacetate was reacted with a variety of active ...
Eman A. El-Bordany, Mohamed M. Youssef, Mohammad Emad Azab   +2 more
doaj   +1 more source