Ambatwar_2026_Future.Med.Chem__1

AIMS: Developing novel benzothiazole-thiadiazole & oxadiazole hybrids as acetylcholinesterase (AChE) inhibitors. MATERIAL AND METHODS: Benzothiazole-thiadiazole (10a-n) and benzothiazole-oxadiazole (11a-p) hybrids were synthesized and evaluated for AChE inhibition. The drug-likeness, molecular docking, molecular dynamics simulations, and cytotoxicity were also performed. RESULTS: Compounds 10b, 10d and 10j emerged as potent inhibitors, displaying IC(50) 0.05 microM, 0.12 microM and 0.14 microM, respectively. The IC(50) of compounds 11c, 11f and 11n are 0.13 microM, 0.11 microM, and 0.09 microM, respectively, which are comparable to donepezil (IC(50) 0.03 microM). Further enzyme kinetic assays revealed a competitive inhibition mechanism. Drug-likeness, molecular docking and molecular dynamic simulation and cytotoxicity assays confirm the efficacy and safety profile. CONCLUSIONS: Benzothiazole-thiadiazole & oxadiazole scaffolds are promising leads for the developing AChE inhibitors.