Synthesis and Evaluation of Water-Soluble 1-Sulfonyl-2-Arylpyrrolidine Derivatives as Bacterial Biofilm Formation Inhibitors.

The approach to the novel 1-((2-aminoethyl)sulfonyl)-2-arylpyrrolidines via unique intramolecular cyclisation / aza-Michael reactions of N-(4,4-diethoxybutyl)ethenesulfonamide have been developed, which benefits from high yields of target compounds, mild reaction conditions, usage of inexpensive and low-toxic reagents, and allows for wide variability in both amine and aryl moieties. Biotesting with whole-cell luminescent bacterial biosensors responding to DNA damage showed that all tested compounds are not genotoxic. Tested compounds differently affect the formation of biofilms by Vibrio aquamarinus DSM 26054. Some of the tested compounds were found to suppress the bacterial biofilms growth and thus are promising candidates for further studies.