| Sumario: | We report the synthesis, spectroscopic properties, and anti-proliferative efficacy of the adamantane-linked 1,2,4-triazole derivative 5-(adamantan-1-yl)-4-(3-chlorophenyl)-2,4-dihydro-3H-1,2,4-triazole-3-thione. Crystal packing and intermolecular interactions have been quantified using Hirshfeld surfaces and two-dimensional fingerprint plots. ADMET characteristics, bioavailability, and drug-likeness define the compound’s bioactivity. The gastrointestinal absorption is anticipated to be high, and the projected bioavailability score is 0.55. The topological polar surface area and iLOGP, XLOGP, WLOGP, and MLOGP lipophilicity parameters have been calculated to be 65.70 Å2, 3.24, 4.74, 5.05, and 4.07, respectively. To investigate 5A4ClT's EGFR inhibition and its use in the treatment of non-small cell lung cancer, Autodock Vina was used to dock it with the crystal structure of the EGFR kinase domain protein. The title chemical hydrophobically interacts with the receptor residues LEU718, VAL726, ALA743, GLU762, THR790, LEU792, MET793, GLY796, ARG841, ASN842, and LEU844 and forms hydrogen bonds with ASP855 and THR854 with an affinity of −8.3 kcal/mol. Toxicity end points and comparison with NSCLC drugs yielded promising findings. 120 ns molecular dynamics simulations confirmed the ligand’s dynamic stability in the target protein’s binding pocket. This research lays the groundwork for future in vivo investigations of 5A4ClT as a non-small cell lung cancer therapy.
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