Thiazolidione derivatives as novel antibiofilm agents: design, synthesis, biological evaluation, and structure-activity relationships.

Rational designed novel thiazolidiones were synthesized and evaluated for antibiofilm activity. The active derivatives were not only potent inhibitors of Staphylococcus epidermidis biofilm growth but also efficient antibacterial agents. 3f showed 4-fold higher activity (6.25 μM) in the biofilms dispersal assay and significantly higher antibacterial activity (MIC 3.125 μM) in comparison to the 3-(5-((6- (ethoxycarbonyl)-5-(benzo[1,3]dioxol-5-yl)-3-oxo-7-phenyl- thiazolo[3,2-a]pyrimidin-2(5H)-ylidene)methyl)furan-2-yl)benzoic acid (1).