Synthesis and Bioactivity Evaluation of Novel 2-Salicyloylbenzofurans as Antibacterial Agents.

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2017
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Abstract
In order to discover new antibacterial agents, series of 2-salicyloylbenzofuran derivatives were designed, synthesized and evaluated for their antibacterial activities against three Gram-(+) strains (methicillin-sensitive (MSSA) ATCC 29213, methicillin-resistant (MRSA) ATCC 43300, and () ATCC 29212) and one Gram-(-) strain ( ATCC 25922). The 2-salicyloylbenzofuran heterocycles were generated by Rap-Stoermer condensation of salicylaldehydes with phenacyl bromides and then converted to diverse -ether derivatives by Williamson synthesis. The targeted products were screened for in vitro qualitative (zone of inhibition) and quantitative (MIC) antibacterial activities by agar well diffusion assay and agar dilution method. Amongst the compounds, those bearing carboxylic acid functional group were found to exhibit reasonable activity against Gram-(+) bacterial strains including , MSSA and MRSA with the most potent antibacterial agent (MICs = 0.06-0.12 mM). Besides, the 2-salicyloylbenzofurans partly displayed inhibitory activity against MRSA with the best MICs = 0.14 mM () and 0.12 mM (). Finally, the antibacterial results preliminarily suggested that the substituent bearing carboxylic acid group at salicyloyl-C2 and the bromine atoms on the benzofuran moiety seem to be the functionality necessary for antibacterial activities.
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phan2017synthesismolecules Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Phan, Phuong-Thuy T;Nguyen, Thu-Trang T;Nguyen, Hong-Nhung T;Le, Bao-Khanh N;Vu, Thao T;Tran, Dong C;Pham, Tuan-Anh N;
Journal molecules
Year 2017
DOI
E687
URL
Keywords
mechanical properties porosity pore size camphene-templated porous α-sialon

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