Results 11 to 20 of about 14,808 (226)

Photochemical approach to functionalized benzobicyclo[3.2.1]octene structures via fused oxazoline derivatives from 4- and 5-(o-vinylstyryl)oxazoles [PDF]

Beilstein Journal of Organic Chemistry, 2014
Novel cis/trans-4- and cis/trans-5-(2-vinylstyryl)oxazoles have been synthesized by Wittig reactions from the diphosphonium salt of α,α’-o-xylene dibromide, formaldehyde and 4- and 5-oxazolecarbaldehydes, respectively. In contrast, trans-5-(2-vinylstyryl)
Ivana Šagud, Simona Božić, Željko Marinić, Marija Šindler-Kulyk   +3 more
doaj   +4 more sources

Alkoxyallene‐Based LANCA Three‐Component Synthesis of 1,2‐Diketones, Quinoxalines, and Unique Isoindenone Dimers and a Computational Study of the Isoindenone Dimerization [PDF]

, 2020
A series of β‐alkoxy‐β‐ketoenamides was prepared by the well‐established LANCA three‐component reaction of lithiated 1‐(2‐trimethylsilylethoxy)‐substituted allenes, nitriles, and α,β‐unsaturated carboxylic acids.
Bera M. K., Holland J. M., Lechel T., Lechel T., Zimmer R., Zimmer R., Zimmer R.   +6 more
core   +1 more source

A study of cell membranes in nasal epithelial cells from patients with chronic rhinosinusitis with nasal polyps by means of a fluorescent probe [PDF]

, 2009
Aim. To assess the state of membranes in nasal epithelial cells obtained from the patients with chronic rhinosinusitis with nasal polyps (CRSwNP) with the help of the fluorescent probe 2-(2ʹ-ОН-phenyl)-5-phenyl-1,3-oxazole. Methods. The state of membrane
Onishchenko, A. I., Tkachenko, A. S., Nakonechna, O. A., Korniyenko, Y. M., Ryshchenko, I. M., Tsygankov, A. V., Posokhov, Y. O.   +6 more
core   +2 more sources

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

A comprehensive review on biological activities of oxazole derivatives

BMC Chemistry, 2019
The utility of oxazole as intermediates for the synthesis of new chemical entities in medicinal chemistry have been increased in the past few years. Oxazole is an important heterocyclic nucleus having a wide spectrum of biological activities which drew ...
Saloni Kakkar, Balasubramanian Narasimhan   +1 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

Macrocyclic colibactin induces DNA double-strand breaks via copper-mediated oxidative cleavage. [PDF]

, 2019
Colibactin is an assumed human gut bacterial genotoxin, whose biosynthesis is linked to the clb genomic island that has a widespread distribution in pathogenic and commensal human enterobacteria.
A Collins, A Cougnoux, AO Brachmann, BR Stern, Bradley S. Moore, CA Brotherton, CA Brotherton, CM Woo, D Payros, E Buc, EP Balskus, EP Rogakou, G Cuevas-Ramos, G Sharon, HB Bode, I Cho, J Chen, JA Stubbe, JC Arthur, Jennifer Y. H. Lai, Jie Li, JK Nicholson, JP Nougayrède, KJ Humphreys, KK Khanna, KS Chaturvedi, L Zha, L Zha, LB Schultz, LC Colis, LF Povirk, M Olier, M Pitie, MI Vizcaino, MI Vizcaino, MR Wilson, MS Donia, MS Donia, MS Melvin, N Bossuet-Greif, N Bossuet-Greif, NS Guntaka, P Engel, P Tripathi, Pei-Yuan Qian, RM Bleich, RM Burger, S Borah, S Tomkovich, Shaun M. K. McKinnie, T Faïs, T Pérez-Berezo, T Secher, TC Holmes, V Bondarev, Wei-Peng Zhang, Wenjun Zhang, Wenlong Cai, X Bian, X Bian, Y Pommier, YA Chan, Z-R Li, Z-R Li, Zhong-Rui Li   +64 more
core   +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

Naturally Occurring Oxazole-Containing Peptides [PDF]

Marine Drugs, 2020
Oxazole-containing peptides are mostly of marine origin and they form an intriguing family with a broad range of biological activities. Here we classify these peptides on the basis of their chemical structure and discuss a number of representatives of each class that reflect the extraordinary potential of this family as a source of new drugs.
Jessica T. Mhlongo, Edikarlos Brasil, Beatriz G. de la Torre, Fernando Albericio   +3 more
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