“…New drug candidates with potential application in the treatment of various inflammatory disorders can be received either through the structural alteration of already known NSAIDs, such as Diclofenac [ 18 ], Naproxen [ 19 ], Celecoxib [ 20 ], Ibuprofen [ 21 ], or by developing fully novel classes of cyclooxygenase inhibitors. When considering the design of new anti-inflammatory agents, one of the most popular and effective synthetic approaches in contemporary medicinal chemistry relies on replacing the free carboxylic group with different bioisosteric five-membered heterocyclic rings, such as 1,3,4-oxadiazole [ 18 , 19 , 20 , 21 , 22 ], 1,3-thiazole [ 23 , 24 , 25 ], pyrazole [ 26 , 27 ] or 1,2,4-triazole [ 28 , 29 , 30 , 31 , 32 , 33 ]. According to the leading investigations, such a strategy can be successfully applied to modify widespread used NSAIDs and other promising compounds not introduced in the market yet.…”