Abstract
In this study, we describe the synthesis, docking study and biological evaluation of 1,2-benzothiazines 1,1-dioxide derivatives. Taking the well-known drug, Piroxicam as a lead compound, we designed and synthesized two series of 1,2-benzothiazines 1,1-dioxide derivatives to assay their ability in inhibition of HIV-1 replication in cell culture. Most of the new compounds were active in the cell-based anti-HIV-1 assay with EC50 < 50 μM. Among them, compound 7g was found to be the most active molecule.Docking study using 3OYA pdb code on the most active molecule 7g with EC50 values of 10 μM showed a similar binding mode to the HIV integrase inhibitors. Since all the compounds showed no remarkable cytotoxicity (CC50> 500 μM), the designed scaffold is promising structure for the development of new anti-HIV-1 agents.
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