In silico and in vitro antioxidant and anticancer activity profiles of urea and thiourea derivatives of 2,3-dihydro-1H-inden-1-amine

Synthesis of a series of new urea and thiourea compounds have been accomplished by the reaction of 2,3-dihydro-1H-inden-1-amine with various phenyl isocyanates and isothiocyanates. These compounds were evaluated for their antioxidant activity by using 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical and nitric oxide (NO) radical scavenging assay methods including IC₅₀ values. Some of the compounds exhibited potential activity in the two tested methods. Among the series of compounds, urea derivative linked with 4-bromo phenyl ring (4b), and thiourea derivatives bonded with phenyl ring (4e), 4-fluoro phenyl ring (4f) and 4-nitro pheyl ring (4h) were found to exhibit promising anti oxidant activity with low IC₅₀ values. Where four of the title comounds exhibited higher bindig energies than the reference compound (Imatinib) in in silico molecular docking studies with Aromatase. All the synthesized compounds were characterized by IR, ¹H, ¹³C NMR and mass spectral data.