Novel mandelate ionic liquids with quartenary ammonium cations were synthesized and characterized. The compounds exhibit antimicrobial activity and the most potent one is of similar efficacy against Gram+ bacteria as its counterpart chloride. On the other hand, the mandelates are much less active against Gram-bacteria and fungi. QSAR models suggest that, with respect to cation, their potency depends on lipophilicity. The synthesized ionic liquids are also quite cytotoxic against mammalian cells.
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