Abstract
Two new sets of Schiff bases 2-chloroquinolin-3-yl-methylene-pyridin-2-amine (CMPA) and 2-chloroquinolin-3-yl-methylene-pyrazole-5-amine-3-thole (CMPT) and their respective palladium (II) complexes have been synthesised and characterized with the aid of elemental analysis, IR, 1H &13C NMR, UV–Vis., and electrochemical studies. The surface morphology of palladium complexes were examined by Scanning Electron Microscopic image. The binding affinities of complexes with CT-DNA were carried out by absorption spectra and cyclic voltammetric studies. The observed hypochromic (~20%) and bathochromic (~30%) shifts indicates that the complexes bind with Guanine base pair of CT-DNA via intercalation. The increasing cathodic peak potential from +0.968 eV to +1.104 eV in complexes confirm the presence of intercalation. Anti-inflammatory activities of both ligands and complexes have been studied using carrageenan induced hind paw edema in Wistar rats. The change in paw volume revealed that the maximum percentage of inhibition was observed in metal complex at 5th hour with a dose of 200 mg/kg. In order to evaluate the binding affinity of ligand and metal complex, molecular interaction analysis were performed by maestro implemented in Schrodinger.
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