A series of 15-membered azalide urea and thiourea derivatives has been synthesized and evaluated for their in vitro antimalarial activity against chloroquine-sensitive (D6), chloroquine/pyremethamine resistant (W2) and multidrug resistant (TM91C235) strains of Plasmodium falciparum. We have developed an effective automated synthetic strategy for the rapid synthesis of urea/thiourea libraries of a macrolide scaffold. Compounds have been synthesized using a solution phase strategy with overall yields of 50-80%. Most of the synthesized compounds had inhibitory effects. The top 10 compounds were 30-65 times more potent than azithromycin, an azalide with antimalarial activity, against all three strains.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/j.bmc.2011.01.030 | DOI Listing |
Molecules
November 2024
School of Material and Chemical Engineering, Zhengzhou University of Light Industry, 136 Kexue Road, Zhengzhou 450002, China.
In response to the challenges of food spoilage and water pollution caused by pathogenic microorganisms, CeO/g-CN nanocomposites were synthesized via one-step calcination using thiourea and urea as precursors. Steady-state photoluminescence (PL) spectroscopy analysis demonstrated that 8 wt% CeO/g-CN exhibited superior electron-hole separation efficiency. Quantitative antimicrobial assays demonstrated that the nanocomposites displayed enhanced bactericidal activity against , , and .
View Article and Find Full Text PDFBiopolymers
January 2025
Department of Chemistry, Faculty of Engineering and Science, Bursa Technical University, Bursa, Turkey.
Cellulose is one of the most abundant biopolymers in nature. Despite being the subject of research in various fields, it is not as famous as chitosan in catalyst design. Herein, a novel thiourea-functionalized cellulose (CTU-6) was synthesized as a robust hydrogen bonding catalyst with the degree of substitution (DS) of 0.
View Article and Find Full Text PDFMicrob Pathog
December 2024
Department Of Chemistry, S.V.Arts College (TTD), Tirupati 517501, Andhra Pradesh, India. Electronic address:
This study delves into the synthesis, in vitro assessment, and molecular docking analysis of bioactive urea and thiourea derivatives, which have gained attention in pharma chemistry due to their versatile chemical reactivity and potential therapeutic applications. One pot synthetic methodology was employed to create a diverse class of compounds. Subsequent in vitro assessments, including antimicrobial assays, unveiled the pharmacological potential of these derivatives, offering insights into their ability to inhibit pathogenic microorganisms.
View Article and Find Full Text PDFHeliyon
October 2024
Department of Chemistry, College of Science, Qassim University, Buraidah, 51452, Saudi Arabia.
Herein, a novel set of imidazo-isoxazole derivatives containing thiourea and urea scaffolds were synthesized, characterized (H NMR, C NMR, and elemental analysis). These compounds were biologically evaluated for their α-amylase and α-glucosidase inhibitory activity, identifying as the most active (IC 26.67 ± 1.
View Article and Find Full Text PDFACS Phys Chem Au
November 2024
Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000 Zagreb, Croatia.
In this work, we developed (thio)ureido-calix[4]arene derivatives and thoroughly explored their anion-binding properties in acetonitrile. A series of anions, including important inorganic ones (Cl, HSO , HPO , and HPO ) and several ever-present carboxylates (acetate, benzoate, and fumarate), were studied. All systems were investigated by several methods (NMR, ITC, and UV) used in a synergistic fashion, providing their comprehensive thermodynamic description.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!