Abstract
An insilico and density functional theory (DFT) calculations were carried out for (X-methylphenyl)-5-nitro-6-amino-3-pyridinecarboxmide (X-MPNAPC),{X=2,3,4,5,6} to evaluate the potential inhibitors for Alzheimer’s disease. The molecular structure of 2-MPNAPC, 3-MPNAPC, 4-MPNAPC, 5-MPNAPC and 6-MPNAPC molecules was optimized by the DFT/B3LYP method with cc-pVTZ basis set using the Gaussian 09 program. The inhibitory nature of the molecules against enzyme acetylcholinesterase (AChE) catalyzes was evaluated by molecular docking studies. The molecular docking parameters such as binding energy, inhibition constant and intermolecular energy were calculated by the AutoDock 4.0 software. The higher binding energy, intermolecular energy and lower inhibition constant values suggested that the 2-MPNAPC molecule has higher inhibitory nature against the AChE catalyzes, which confirm that the 2-MPNAPC molecule is a potential inhibitor for the Alzheimer’s disease. The molecular reactivity was also studied by the frontier molecular orbitals analysis.
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