Results 41 to 50 of about 9,790 (260)

Improvement of diaphragm and limb muscle isotonic contractile performance by K+ channel blockade

open access: yesJournal of NeuroEngineering and Rehabilitation, 2010
The K+ channel blocking aminopyridines greatly improve skeletal muscle isometric contractile performance during low to intermediate stimulation frequencies, making them potentially useful as inotropic agents for functional neuromuscular stimulation ...
Pollarine Jennifer, van Lunteren Erik
doaj   +1 more source

A structural systematic study of four isomers of difluoro-N-(3-pyridyl)benzamide [PDF]

open access: yes, 2009
The four isomers 2,4-, (I), 2,5-, (II), 3,4-, (III), and 3,5-difluoro-N-(3-pyridyl)benzamide, (IV), all with formula C12H8F2N2O, display molecular similarity, with interplanar angles between the C6/C5N rings ranging from 2.94 (11)° in (IV) to 4.48 (18 ...
Anderson, Frankie P.   +3 more
core   +1 more source

4-Aminopyridine Improves Lower Urinary Tract Symptoms in a Patient With Benign Prostatic Hyperplasia and Downbeat Nystagmus Syndrome [PDF]

open access: yesInternational Neurourology Journal, 2014
Aminopyridines are potassium channel blockers that increase the excitability of nerve cells and axons; therefore, they are widely used to treat different neurological disorders.
Michael Strupp   +3 more
doaj   +1 more source

An Efficient Synthesis of Novel 3-[(Heteroaryl-2-ylimino)-methyl]-4-hydroxy-chromen-2-ones and Analogue of Tetrazole Derivatives and Their Antibacterial Activity

open access: yesMolbank, 2021
Synthesis of a series of the substituted [(pyridinyl and pyrimidin-2-ylimino)-ethyl]-4-hydroxy-chromen-2-ones and their tetrazole derivates is presented in this study. By catalytic condensation of 4-hydroxy-3-acetylcoumarine 2 and 2-aminopyridines 3(a-d),
Ramiz Hoti   +5 more
doaj   +1 more source

Tackling resistance: Emerging antimalarials and new parasite targets in the era of elimination [version 1; referees: 2 approved] [PDF]

open access: yes, 2018
Malaria remains a significant contributor to global human mortality, and roughly half the world’s population is at risk for infection with Plasmodium spp. parasites.
Matthews, Emily S, Odom John, Audrey R
core   +2 more sources

An Improved Synthesis of 4-Chlorocoumarin-3-sulfonyl Chloride and Its Reactions with Different Bidentate Nucleophiles to Give Pyrido[1',2':2,3]- and Thiazino[3',2':2,3]-1,2,4-Thiadiazino[6,5-c]Benzopyran-6-one 7,7-Dioxides

open access: yesMolecules, 2007
An improved synthetic method affording 4-chlorocoumarin-3-sulfonyl chloride (4) in very good yield (ca. 85 %) is reported. This compound was reacted with various bidentate nucleophiles such as 2-aminopyridines and 2-aminothiazoles in order to obtain ...
Emil Popovski   +4 more
doaj   +1 more source

Efficient Synthesis of 2-Aminopyridine Derivatives: Antibacterial Activity Assessment and Molecular Docking Studies

open access: yesMolecules, 2022
A new and suitable multicomponent one-pot reaction was developed for the synthesis of 2-amino-3-cyanopyridine derivatives. Background: This synthesis was demonstrated by the efficient and easy access to a variety of substituted 2-aminopyridines using ...
Zahira Kibou   +6 more
doaj   +1 more source

Template-directed synthesis of macrocyclic aminopyridines: azacalix[n](2,6)pyridines (n = 3, 4) [PDF]

open access: yes, 2014
Template-induced synthetic routes for azacalix[n](2,6)pyridines (n = 3, 4) have been elaborated. The proton and nickel ion served as the efficient template for the cyclization reactions, and the presence of the templates preferentially afforded the ...
Kuwabara Junpei   +5 more
core   +1 more source

Preparation of imidazo[1,2-a]-N-heterocyclic derivatives with gem-difluorinated side chains

open access: yesBeilstein Journal of Organic Chemistry, 2017
Using an aerobic oxidative coupling, different new imidazo[1,2-a]-N-heterocycles with gem-difluroroalkyl side chains have been prepared in fair yields by the reaction of gem-difluoroenones with aminopyridines, -pyrimidines and -pyridazines.
Layal Hariss   +5 more
doaj   +1 more source

METHODS OF NITROPYRIDINE SYNTHESIS

open access: yesSiberian Journal of Life Sciences and Agriculture, 2021
Background. Pyridine derivatives are widely used in pharmaceuticals, agrochemistry, as well as in the production of new materials. The pyridine and piperidine rings are the main structural fragments of numerous natural alkaloids with a wide spectrum of ...
Evgeniya V. Ivanova   +4 more
doaj   +1 more source

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