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Herein, eight new NHC-based selenourea derivatives were synthesized and characterized by using spectroscopic method ( 1 H,  19 F, and  13 C NMR, FT-IR), and elemental analysis techniques. These compounds were synthesized by mixing benzimidazolium salts, potassium carbonate, and selenium powder in ethyl alcohol. Additionally, the molecular and crystal structures of the three compounds ( 1c ,  2b , and  2c ) were determined using the single-crystal x-ray diffraction (XRD) method. Diffraction analysis demonstrated the partial carbon-selenium double-bond character of these compounds. All compounds were determined to be highly potent inhibitors for AChE and XO enzymes. The IC 50  values for the compounds were found in the range of 0.361–0.754 μM for XO and from 0.995 to 1.746 μM for AChE. The DNA binding properties of the compounds were investigated. These compounds did not have a remarkable DNA binding property. Also, DPPH radical scavenging activities of the compounds were also investigated. Compounds ( 1c ), ( 2a ), ( 3a ), and ( 3b ) exhibited more pronounced DPPH radical scavenging activity when compared to other compounds. Docking studies were applied by using AutoDock 4 to determine interaction mechanism of the selected compounds ( 1a ), ( 1b ), and ( 3b ). The compound ( 1b ) has good binding affinity (−9.78 kcal/mol) against AChE, and (−6.86 kcal/mol) for XO target. Drug similarity properties of these compounds compared to positive controls were estimated and evaluated by ADMET analysis. Furthermore, molecular dynamics simulations have been applied to understand the accuracy of docking studies. These findings and the defined compounds could be potential candidates for the discovery and progress of effective medicine(s) for AChE and XO in the future. Communicated by Ramaswamy H. Sarma

journal of biomolecular structure and dynamics

Design, synthesis, spectroscopic characterizations, single crystal X-ray analysis,  in vitro  xanthine oxidase and acetylcholinesterase inhibitory evaluation as well as  in silico  evaluation of selenium-based  N -heterocyclic carbene compounds