DFT Analyses of Arsylsemicarbazone Group as Functional compound for application as excellent fluorescent probes and medicament: Study on virtual Screening through Molecular Docking

Abstract

Abstract The present invention reports two novel functional compounds, 2-hydroxy-3-naphthaldehyde thiosemicarbazone (2H3NTS) and 2-hydroxy-3-naphthaldehyde semi carbazone (2H3NS) as an excellent fluorescent probe which possess anticancer features and are not yet synthesized by any research group. The DFT study reveals significantly higher stokes shift (315 nm) for 2H3NS indicating swift relaxation from initial to the emissive state and reduces self-quenching from self-molecular absorption which favours its practical application. Consequently, successive in-vitro activity of 2H3NTS and /2H3NS is studied using molecular docking towards the inhibition capacity of target kinase protein like CDK, primarily responsible for cell growth. As expected, 2H3NS is capable of binding both competitive ATP binding SITE I and non-competitive SITE II which lies below the T-loop, thereby inhibiting the cell growth and differentiation. However, 2H3NTS with polarizable sulphur is incapable of binding at SITE I with selective inhibition posing the ATP site to be well conserved.