Abstract
Tyrosyl-tRNA synthetase (TyrRS) is an aminoacyl-tRNA synthetase family protein that possesses an essential role in bacterial protein synthesis. The synthesis, structure-activity relationship, and evolution of a novel series of adenosine-containing 3-arylfuran-2(5H)-ones as TyrRS inhibitors are described. Advanced compound d3 from this series exhibited excellent affinity for TyrRS with IC50 of 0.61 ± 0.04 μM. Bacterial growth inhibition assays demonstrated that d3 showed submicromolar antibacterial potency against Escherichia coli and Pseudomonas aeruginosa, and compared to the marketed antibiotics ciprofloxacin.
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