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Synthesis, Molecular Modelling and Biological Studies of 3-Hydroxy-Pyrane-4-One and 3-Hydroxy-Pyridine-4-One Derivatives As Hiv-1 Integrase Inhibitors Publisher Pubmed



Sirous H1, 2 ; Fassihi A1 ; Brogi S3, 4, 5 ; Campiani G3, 4 ; Christ F6 ; Debyser Z6 ; Gemma S3, 4 ; Butini S3, 4 ; Chemi G3, 4 ; Grillo A3, 4 ; Zabihollahi R7 ; Aghasadeghi MR7 ; Saghaie L1 ; Memarian HR8
Authors

Source: Medicinal Chemistry Published:2019


Abstract

Background: Despite the progress in the discovery of antiretroviral compounds for treating HIV-1 infection by targeting HIV integrase (IN), a promising and well-known drug target against HIV-1, there is a growing need to increase the armamentarium against HIV, for avoiding the drug resistance issue. Objective: To develop novel HIV-1 IN inhibitors, a series of 3-hydroxy-pyrane-4-one (HP) and 3-hydroxy-pyridine-4-one (HPO) derivatives have been rationally designed and synthesized. Methods: To provide a significant characterization of the novel compounds, in-depth computational analysis was performed using a novel HIV-1 IN/DNA binary 3D-model for investigating the binding mode of the newly conceived molecules in complex with IN. The 3D-model was generated using the proto-type foamy virus (PFV) DNA as a structural template, positioning the viral polydesoxyribonucleic chain into the HIV-1 IN homology model. Moreover, a series of in vitro tests were performed including HIV-1 activity inhibition, HIV-1 IN activity inhibition, HIV-1 IN strand transfer activity inhibition and cellular toxicity. Results: Bioassay results indicated that most of HP analogues including HPa, HPb, HPc, HPd, HPe and HPg, showed favorable inhibitory activities against HIV-1-IN in the low micromolar range. Particularly halogenated derivatives (HPb and HPd) offered the best biological activities in terms of reduced toxicity and optimum inhibitory activities against HIV-1 IN and HIV-1 in cell culture. Conclusion: Halogenated derivatives, HPb and HPd, displayed the most promising anti-HIV profile, paving the way to the optimization of the presented scaffolds for developing new effective antiviral agents. © 2019 Bentham Science Publishers.
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