such as thiophene, pyridine and quinoline tetrazoles were synthesized and characterized for the purpose to develop new lead molecules. Biological evaluations such as in vitro antimicrobial and anti-inflammatory activities were studied. Further, the in silico studies such as Molecular docking (with COX-1, COX-2 and 3TTZ), DFT calculations, the Molecular electrostatic potential (MEP) and ADME were investigated