Synthesis, antibacterial, and antibiofilm activities of pulmonarin B analogues

Autor: Liubov Muzychka, Iryna Boiko, Nina Vrynchanu, Oleg Smolii
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Current Chemistry Letters, Vol 13, Iss 2, Pp 335-342 (2024)
Druh dokumentu: article
ISSN: 1927-7296
1927-730X
DOI: 10.5267/j.ccl.2023.11.005
Popis: New analogues of pulmonarin B were synthesized from (3,5-dibromo-4-hydroxyphenyl)acetic acid derivatives, and their antibacterial and antibiofilm activities against E. coli, S. aureus, and P. aeruginosa were evaluated. The antibacterial activity of synthesized ammonium salts against the methicillin-resistant strain of S. aureus 222 depends on the length of the alkyl chain. Bis-quaternary ammonium salt 5 demonstrated better activity against S. aureus 222, E. coli 311, and P. aeruginosa 449 compared to mono-alkylated derivatives. Analogues of pulmonarin B 5 and 4d reduced S. aureus 222 biofilm formation by 74.5% and 89.4%, respectively. In addition, compound 4c turned out to be the most active against the biofilm formation of P. aeruginosa 449 (biomass decreased by 39.8%).
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