Molecular Docking Study, Synthesis and Anti Inflammatory Activity of 7-Substituted Coumarin Schiff Base Derivatives

Abstract

Coumarins are an entity which is being synthesized in many of its derivative form from past few years. This entity is major source of interest for many of medicinal chemist to explore its various pharmacological potentials especially as anti oxidant, anti inflammatory, anti microbial , anti hepatitis, hepatoprotective, anti cancer, anti pyretic and analgesic activity. In present work, synthesized coumarin schiff base derivatives were screened for antiinflammatory activity. Literature study of various research papers and other publications which provide detailed work and recent study on coumarin schiff base derivatives was taken into consideration. In the present study we have designed novel series of coumarin schiff base derivatives, docked in to active site of COX-2 with PDB ID [3NT1]. Based on the hydrogen bond interaction and docking score, MIP4 and MIP7 which shown good interaction. The target molecules were synthesized by coupling reaction of 7-(3-chloropropoxy)-4-methyl- 2H-chromen-2-one with different substituted N-benzylpyridine-2-amine.They were further characterized by IR and 1H NMR, MASS spectra. These newly formed Coumarin schiff base derivatives were screened for anti-inflammatory activity by carrageen induced rat paw edema model. Most of the compounds showed significant In-vivo anti-inflammatory activity. Comparing pharmacological activity and docking results, we conclude that heterocyclic derivatives linked with halogen at 7-position of coumarin schiff base seem to be potentially active drug.