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Discovery of novel acylhydrazone neuraminidase inhibitors. | LitMetric
Neuraminidase (NA) plays a crucial role in the replication and transmission of influenza virus. NA inhibitors have been developed as effective treatments for influenza A and B infections. In this paper, a new lead neuraminidase inhibitor 6a (IC = 7.10 ± 0.2 μM) was discovered by ligand-based virtual screening, receptor-based virtual screening, molecular dynamics simulation (MD), and bioassay validation. MD simulation indicates that the morpholinyl group of 6a could be embedded in 430-loop of NA. To exploit the 430-loop in the active site, a series of novel acylhydrazone NA inhibitors 6b-6g were designed and synthesized based on the lead compound 6a. Compound 6e exerts the most potency, with IC value of 2.37 ± 0.5 μM against NA, which is lower than that of oseltamivir carboxylate (OC) (IC = 3.84 μM). Overall, this work provided unique insights in the discovery of potent inhibitors against NA.
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