Results 61 to 70 of about 113,455 (289)

Sulfonamides: Synthesis and the recent applications in Medicinal Chemistry

open access: yesEgyptian Journal of Chemistry, 2020
This review spotlights sulfonamides from different sides, including history, structure-activity relationship, chemistry, methods of classification and up to date ways for their synthesis.
M. El-Qaliei   +5 more
semanticscholar   +1 more source

Day-to-day dynamics of commensal Escherichia coli in Zimbabwean cows evidence temporal fluctuations within a host-specific population structure [PDF]

open access: yes, 2017
To get insights into the temporal pattern of commensal Escherichia coli populations, we sampled the feces of four healthy cows from the same herd in the Hwange District of Zimbabwe daily over 25 days. The cows had not received antibiotic treatment during
Andremont, Antoine   +9 more
core   +1 more source

Crystal structure and Hirshfeld surface analysis of N-[2-(5-methylfuran-2-yl)phenyl]-3-nitro-N-[(3-nitrophenyl)sulfonyl]benzenesulfonamide

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2023
In the title compound, C23H17N3O9S2, C—H...O hydrogen bonds link adjacent molecules in a three-dimensional network, while π–π stacking interactions, with centroid–centroid distances of 3.8745 (9) Å, between the furan and an arene ring of one of the two ...
Gunay Z. Mammadova   +6 more
doaj   +1 more source

Dual-Wavelength Fluorescence Polarization Immunoassay for Simultaneous Detection of Sulfonamides and Antibacterial Synergists in Milk

open access: yesBiosensors, 2022
Combinations of sulfonamides (SAs) and antibacterial synergists (ASGs) are frequently used for treating infectious diseases and promoting growth for animals, which cause potential hazards to food safety and human health.
Changfei Duan   +9 more
doaj   +1 more source

Positive allosteric modulators of the a-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptor [PDF]

open access: yes, 2010
L-glutamate is the major excitatory neurotransmitter in the mammalian central nervous system (CNS) and plays a fundamental role in the control of motor function, cognition and mood.
Grove, Simon J .A.   +4 more
core   +1 more source

Drugs That Changed Society: History and Current Status of the Early Antibiotics: Salvarsan, Sulfonamides, and β-Lactams

open access: yesMolecules, 2021
The appearance of antibiotic drugs revolutionized the possibilities for treatment of diseases with high mortality such as pneumonia, sepsis, plaque, diphtheria, tetanus, typhoid fever, and tuberculosis.
Søren Brøgger Christensen
doaj   +1 more source

Silyl Radical-Mediated Activation of Sulfamoyl Chlorides Enables Direct Access to Aliphatic Sulfonamides from Alkenes.

open access: yesJournal of the American Chemical Society, 2019
Single electron reduction is more challenging for sulfamoyl chlorides than sulfonyl chlorides. However, sulfamoyl and sulfonyl chlorides can be easily activated by Cl-atom abstrac-tion by a silyl radical with similar rates. This later mode of acti-vation
Sandrine M. Hell   +7 more
semanticscholar   +1 more source

Sorption of sulfamethoxazole, sulfachloropyridazine and sulfamethazine onto six New Zealand dairy farm soils [PDF]

open access: yes, 2010
We have investigated the sorption potential of three sulfonamides (SAs) in six New Zealand dairy farming soils using a modified batch equilibrium method employing 0.005 M CaCl₂ as background solution.
Manley-Harris, Merilyn   +3 more
core  

Nickel-Catalyzed Kumada Cross-Coupling Reactions of Benzylic Sulfonamides

open access: yesMolecules, 2021
Herein, we report a Kumada cross-coupling reaction of benzylic sulfonamides. The scope of the transformation includes acyclic and cyclic sulfonamide precursors that cleanly produce highly substituted acyclic fragments.
Kirsten A. Hewitt   +3 more
doaj   +1 more source

Intermolecular Anti-Markovnikov Hydroamination of Unactivated Alkenes with Sulfonamides Enabled by Proton-Coupled Electron Transfer.

open access: yesJournal of the American Chemical Society, 2018
Here we report a catalytic method for the intermolecular anti-Markovnikov hydroamination of unactivated alkenes using primary and secondary sulfonamides.
Qilei Zhu, David E. Graff, R. Knowles
semanticscholar   +1 more source

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