Abstract
A series of novel 4-alkoxy-3-arylfuran-2(5 H)-ones as tyrosyl-tRNA synthetase inhibitors were synthesized. Of these compounds, 3-(4-hydroxyphenyl)-4-(2-morpholinoethoxy)furan-2(5 H)-one ( 27) was the most potent. The binding model and structure–activity relationship indicate that replacement of morpholine-ring in the side chain of 27 with a substituent containing more hydrophilic groups would be more suitable for further modification. Antibacterial assay revealed that the synthetic compounds are effective against growth of Gram-positive organisms, and 27 is the most potent agent against Staphylococcus aureus ATCC 25923 with MIC 50 value of 0.23 μg/mL.
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