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2-Formylphenylboronic acids display many interesting features, not only from synthetic but also from an application as well as structural points of view. 5-Trifluoromethyl-2-formyl phenylboronic acid has been synthesized and characterized in terms of its structure and properties. The presence of an electron-withdrawing substituent results in a considerable rise in the acidity in comparison with its analogues. In some solutions, the title compound isomerizes with formation of the corresponding 3hydroxybenzoxaborole. Taking into account the probable mechanism of antifungal action of benzoxaboroles, which blocks the cytoplasmic leucyl-tRNA synthetase (LeuRS) of the microorganism, docking studies with the active site of the enzymes have been carried out. It showed possible binding of the cyclic isomer into the binding pocket of LeuRS, similar to that of the recently approved benzoxaborole antifungal drug (, Tavaborole, Kerydin). In case of LeuRS, the opened isomer displays a much higher inhibition constant in comparison with the cyclic one. The antimicrobial activity of the title compound was also investigated , showing moderate action against . The compound reveals higher activity against as well as bacteria such as and . In case of , the determined Minimum Inhibitory Concentration (MIC) value is lower than that of (Tavaborole). The results confirm potential of 2-formylphenylboronic acids as antibacterial agents and give a hint of their possible mechanism of action.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7070739 | PMC |
| http://dx.doi.org/10.3390/molecules25040799 | DOI Listing |
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