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Design, synthesis and biological evaluation of 2-substituted-6-[(4-substituted-1-piperidyl)methyl]-1H-benzimidazoles as inhibitors of ebola virus infection

Abstract : Novel 2-substituted-6-[(4-substituted-1-piperidyl)methyl]-1H-benzimidazoles were designed and synthesized as Ebola virus inhibitors. The proposed structures of the new prepared benzimidazole-piperidine hybrids were confirmed based on their spectral data and CHN analyses. The target compounds were screened in vitro for their anti-Ebola activity. Among tested molecules, compounds 26a (EC50=0.93 μM, SI = 10) and 25a (EC50=0.64 μM, SI = 20) were as potent as and more selective than Toremifene reference drug (EC50 = 0.38 μM, SI = 7) against cell line. Data suggests that the mechanism by which 25a and 26a block EBOV infection is through the inhibition of viral entry at the level of NPC1. Furthermore, a docking study revealed that several of the NPC1 amino acids that participate in binding to GP are involved in the binding of the most active compounds 25a and 26a. Finally, in silico ADME prediction indicates that 26a is an idealy drug-like candidate. Our results could enable the development of small molecule drug capable of inhibiting Ebola virus, especially at the viral entry step.
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Submitted on : Friday, July 8, 2022 - 10:24:55 AM
Last modification on : Monday, July 11, 2022 - 11:09:48 AM

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Maxime Bessières, Elżbieta Plebanek, Payel Chatterjee, Punya Shrivastava-Ranjan, Mike Flint, et al.. Design, synthesis and biological evaluation of 2-substituted-6-[(4-substituted-1-piperidyl)methyl]-1H-benzimidazoles as inhibitors of ebola virus infection. European Journal of Medicinal Chemistry, Elsevier, 2021, 214, pp.113211. ⟨10.1016/j.ejmech.2021.113211⟩. ⟨hal-03717303⟩

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