Synthesis, Biological Evaluation and Docking Study of Etodolac-Triazole Conjugate

A new set of 15 compounds containing etodolac moiety and triazole ring were prepared by CuAAC reaction in moderate to high yield. All the synthesized compounds were purified by chromatographic techniques and characterized by spectral data IR, 1H and 13C NMR and mass spectrometry. The newly derived compounds were screened for their anti-bacterial activities against one gram-positive (S. aureus) and two gram-negative (E. coli, K. pneumoniae) bacteria using an agar-well diffusion method. Most of the compounds showed good to moderate antibacterial activities. Especially compound 4e having good activities against all the strains. The compound 4e displayed significant inhibitory potential with MIC 25 µg/mL against all the strains. The potential DNA gyrase inhibitory activity of this compound was investigated by using molecular docking studies carried out using Autodock Vina software. The compound 4e showed the lowest ΔGbind results (-7.7 Kcal/mol, -7.9Kcal/mol). The cytotoxic activity of the obtained compounds was determined using A549 cancer cell line by a MTT assay. They displayed promising activity against the human lung cancer cell line. Especially 4o, 4b, 4d shown lowest IC50 values.