Results 31 to 40 of about 3,124,995 (289)

Antimicrobial activities of pyridinium-tailored pyrazoles bearing 1,3,4-oxadiazole scaffolds

Journal of Saudi Chemical Society, 2017
Herein, a series of pyridinium-tailored 5-trifluoromethylpyrazoles containing 1,3,4-oxadiazole moieties were constructed through coupling key pharmaceutical fragments of pyridinium, pyrazole, and 1,3,4-oxadiazole scaffolds in single molecular ...
Lei Zhou, Pei-Yi Wang, Jian Zhou, Wu-Bin Shao, He-Shu Fang, Zhi-Bing Wu, Song Yang   +6 more
doaj   +1 more source

A Synthesis of Thiopyran Pyridinium Perchlorate Compounds

Journal of Al-Nahrain University Science, 2013
Asynthesis of four pyridinium perchlorate compounds have been prepared from reaction one mole pyrylium salt (product already) with one mole cysteine in room temp. and diagnosed spectrally (FT-IR., 1H-NMR) in addition to the accurate quantitative elemental analysis.Asynthesis of sixteen Thiopyranpyridinium perchlorate compounds from reaction one mole ...
Marwan F. All-Heety, Sameaa J. Al-Bayati, Mohammed A. Kadhim, Rasha A. Jesama   +3 more
openaire   +1 more source

Identification of a 3-Alkylpyridinium Compound from the Red Sea Sponge Amphimedon chloros with In Vitro Inhibitory Activity against the West Nile Virus NS3 Protease. [PDF]

, 2018
Viruses are underrepresented as targets in pharmacological screening efforts, given the difficulties of devising suitable cell-based and biochemical assays.
Duggan, Brendan M, Emwas, Abdul-Hamid, Gerwick, William H, Kharbatia, Najeh, Kremb, Stephan, O'Rourke, Aubrie, Raji, Misjudeen, Sioud, Salim, Voolstra, Christian R   +8 more
core   +3 more sources

Electronic Tuning of Mixed Quinoidal‐Aromatic Conjugated Polyelectrolytes: Direct Ionic Substitution on Polymer Main‐Chains [PDF]

, 2019
The synthesis of conjugated polymers with ionic substituents directly bound to their main chain repeat units is a strategy for generating strongly electron-accepting conjugated polyelectrolytes, as demonstrated through the synthesis of a series of ionic ...
Anderson, Christopher L, Dai, Nan, He, Bo, Liu, Yi, Teat, Simon J, Wang, Shu   +5 more
core   +3 more sources

Designed Azolopyridinium Salts Block Protective Antigen Pores In Vitro and Protect Cells from Anthrax Toxin [PDF]

, 2013
Background:Several intracellular acting bacterial protein toxins of the AB-type, which are known to enter cells by endocytosis, are shown to produce channels.
A Kronhardt, A Messmer, A Ménard, A Ménard, AA Verveen, AF Kintzer, AM Friedlander, Anika Bronnhuber, AW Artenstein, BA Krantz, C Andersen, C Bachmeyer, C Bachmeyer, C Petosa, Christoph Beitzinger, CT Bahner, D Blöcker, D Blöcker, DB Lacy, EM Nestorovich, EM Nestorovich, F Conti, F Orlik, F Orlik, F Tonello, F Tonello, F Wohnsland, G Hajós, G Timári, G Vitale, György Hajós, H Barth, H Barth, Holger Barth, I Zornetta, J Sun, J Wesche, JA Young, JC Milne, JL Elliott, K Cunningham, KA Bradley, Kerstin Duscha, L Abrami, L Abrami, L Abrami, L Abrami, L Song, Ludger Johannes, M Eigen, M Mock, Markus Huber-Lang, MJ Brown, NS Duesbery, PC Hanna, R Benz, R Benz, R Palkó, R Pellizzari, RJ Collier, RO Blaustein, RO Blaustein, Roland Benz, S Nekolla, SH Leppla, SM Bezrukov, SM Bezrukov, T Neumeyer, T Neumeyer, T Neumeyer, TC Dixon, V Escuyer, VA Karginov, VA Karginov, VA Karginov, Y Singh, Zsuzsanna Riedl   +76 more
core   +2 more sources

Antitumour Effects of Selected Pyridinium Salts on Sensitive Leukaemia HL60 Cells and Their Multidrug Resistant Topoisomerase II-Defective HL60/MX2 Counterparts

Molecules, 2022
Multidrug resistance (MDR), having a multifactorial nature, is one of the major clinical problems causing the failure of anticancer therapy. The aim of this study was to examine the antitumour effects of selected pyridinium salts, 1-methyl-3 ...
Jolanta Tarasiuk, Dorota Kostrzewa-Nowak, Wojciech Żwierełło   +2 more
doaj   +1 more source

Photodegradation of nimodipine and felodipine in microheterogeneous systems [PDF]

, 2012
Indexación: Web of Science; ScieloThe photochemical behavior of nimodipine (NIMO) and felodipine (FELO), photolabile drugs widely used as antihypertensive calcium channel blockers, is studied in constrained media.
Brito, Julio, García, Cristóbal, Günther, Germán, Morales, Javier, Núñez-Vergara, Luis J., Pizarro, Nancy, Pozo, Andrés   +6 more
core   +1 more source

Disiloxanes and Functionalized Silica Gels: One Route, Two Complementary Outcomes-Guanidinium and Pyridinium Ion-Exchangers. [PDF]

PLoS ONE, 2015
Five novel disiloxane compounds comprising guanidinium and pyridinium moieties were obtained with high yields and purity. The verified synthetic pathways were then applied for modification of pre-functionalized silica gel, producing materials with the ...
Łukasz Tabisz, Ainur Tukibayeva, Radoslaw Pankiewicz, Marta Dobielska, Boguslawa Leska   +4 more
doaj   +1 more source

An In Vitro and In Silico Study of Antioxidant Properties of Curcuminoid N-alkylpyridinium Salts: Initial Assessment of Their Antitumoral Properties

Antioxidants, 2022
In this work, we report the synthesis of curcuminoids with ionic liquid characteristics, obtained by incorporating alkyl-substituted pyridinium moiety rather than one phenyl group through a two-step process.
Oscar Forero-Doria, Luis Guzmán, Felipe Jiménez-Aspee, Javier Echeverría, Sergio Wehinger, Claudio Valenzuela, Ramiro Araya-Maturana, Maximiliano Martínez-Cifuentes   +7 more
doaj   +1 more source

Direct methane conversion to methanol by ionic liquid-dissolved platinum catalysts [PDF]

, 2006
Ternary systems of inorganic Pt salts and oxides, ionic liquids and concentrated sulfuric acid are effective at catalyzing the direct, selective oxidation of methane to methanol and appear to be more water tolerant than the Catalytica ...
Cheng, Jihong, Haught, Mark, Li, Zaiwei, Tang, Yongchun   +3 more
core   +2 more sources