6533b7d5fe1ef96bd1263ce7

RESEARCH PRODUCT

Antifungal activity and tautomeric cyclization equilibria of formylphenylboronic acids

Jacek LipokKamila PecuraDorota WieczorekKrzysztof M. BorysAgnieszka Adamczyk-woźniak

subject

Antifungal Agentsfood.ingredientSerial dilutionStereochemistryAntifungal drugSubstituentMicrobial Sensitivity TestsFormylphenylboronic acid01 natural sciencesBiochemistryStructure-Activity Relationshipchemistry.chemical_compoundfoodFusariumDrug DiscoveryAgarAntifungal activityTautomerizationMolecular BiologyCandidaAspergillusTavaboroleDose-Response Relationship DrugMolecular Structurebiology010405 organic chemistryChemistryOrganic ChemistryPenicilliumCyclization equilibriaOrganoboron compoundsbiology.organism_classificationBoronic AcidsTautomer0104 chemical sciences010404 medicinal & biomolecular chemistryAspergillusCyclizationPenicillium

description

2-Formylphenylboronic acid and four isomeric fluoro-2-formylphenylboronic acids have been found active against a series of fungal strains: Aspergillus, Fusarium, Penicillium and Candida. The level of antifungal activity was evaluated by agar diffusion tests as well as the determination of minimum inhibitory concentrations (MICs) by serial dilution method. Among the tested compounds, 4-fluoro-2-formylphenylboronic acid - an analogue of the known antifungal drug Tavaborole (AN2690) - proved to be the most potent antifungal agent. The tautomeric equilibrium leading to the formation of 3-hydroxybenzoxaboroles as well as the position of the fluorine substituent were revealed to play a crucial role in the observed activity.

yearjournalcountryeditionlanguage
2019-10-01Bioorganic Chemistry
https://doi.org/10.1016/j.bioorg.2019.103081