Synthesis, Molecular Docking, Characterization, and Biological Screening of Schiff Bases

Abstract

Twenty-two Schiff-bases were synthesized by a condensation reaction in 1:1 M ratios of thiophene-2-carboxaldehyde with eight different amines and 2-amino thiophenol with eight different aldehydes in ethanol / methanol solvent. Elemental analysis was used to first identify the structural determinations of the Schiff-bases, and then UV-Vis, FT-IR, and 1H NMR were used to confirm them. Good yields of the compounds have been received. The in-vitro anticancer activity of each synthetic substance was assessed using a human colorectal cancer cell line (SW480). When compared to Doxorubicin, a reference medicine with an IC50 value of 32.02 mM, compounds ABSH 11 and ABSH 15 with IC50 values of 0.0826 mM and 8.77 mM demonstrated higher activity, while compound ABSH 07 is almost as active as Doxorubicin. Different other biological activities such as Antibacterial, Antifungal, Anti-glycemic, and Anticholinesterase activities of these compounds were also studied. The compound ABSH 17 is the most potent against Anti-bacterial while ABSH 27 is the most potent against Antifungal activity. ABSH 2 has shown α-amylase inhibition (56%) as well as anticholinesterase activity (78%) which is in good agreement with Molecular docking analysis. All other compounds have shown moderate activities.