Synthesis and biological evaluation of some 5-arylidene-2-(1,3-thiazol-2-ylimino)-1,3-thiazolidin-4-ones as dual anti-inflammatory/antimicrobial agents.

As a part of our ongoing studies in developing new derivatives as dual antimicrobial/anti-inflammatory agents we describe the synthesis of novel 5-arylidene-2-(1,3-thiazol-2-ylimino)-1,3-thiazolidin-4-ones. All newly synthesized compounds were tested for their anti-inflammatory activity using carrageenan mouse paw edema bioassay. Their COX-1/LOX inhibitory activities were also determined. Moreover, all compounds were evaluated for their antimicrobial and antifungal activities against a panel of Gram positive, Gram negative bacteria and moulds. All tested compounds exhibited better antimicrobial activity than commercial drugs, bifonazole, ketoconazole, ampicillin and streptomycin.