A series of novel salicylic acid derivatives containing metronidazole as Staphylococcus aureus Tyrosyl-tRNA synthetase (TyrRS) inhibitors have been synthesized and evaluated their biology activities as potential antibacterial agents. Among these compounds, compound 5r exhibited the most potent antibacterial activity against Gram-positive (S. aureus ATCC 6538 and Bacillus subtilis ATCC 6633) and Gram-negative (Escherichia coli ATCC 35218 and Pseudomonas aeruginosa ATCC 13525) with MICs of 0.39-1.57 mu g/mL and showed the most potent S. aureus Tyrosyl-tRNA synthetase inhibitory with 2.3 mu M. Docking simulation was performed to insert compound 5r into the crystal structure of S. aureus Tyrosyl-tRNA synthetase active site to determine the probable binding model. These results suggested that compound 5r may be a promising antibacterial agent. (c) 2015 Elsevier Ltd. All rights reserved.
DE2252818
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FR2204351
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427. The halogenation of phenolic ethers and anilides. Part VI. Benzyl and substituted-benzyl ethers