Design, synthesis and activity evaluation of usnic acid monoesterification derivatives.
Nat Prod Res
; : 1-9, 2024 Jul 17.
Article
em En
| MEDLINE
| ID: mdl-39021087
ABSTRACT
A new series of usnic acid (UA) monoesterified derivatives 2-15 were designed and synthesised using UA (1) as starting material. The structural characterisation of all compounds was elucidated using 1H-NMR and 13C-NMR spectral data. In vitro studies demonstrated thatmost UA derivatives exhibited higher inhibitory activity against Candida albicans and Staphylococcus aureus. Among them, compound 7 displayed the highest inhibitory activity against C. albicans with a minimum inhibitory concentration (MIC) of 32 µg/mL. Compounds 5, 8, 9, 11and 13 demonstrated superior inhibition of S. aureus (MIC, 16 µg/mL) and biofilm formation in a concentration-dependent manner. With the exception of 11, compounds 5, 8, 9 and 13 were all more effective than UA in inhibiting S. aureus biofilms. This research highlights the potential of UA monoesterified derivatives for the development of dual antimicrobial and antibiofilm agents.
Texto completo:
1
Bases de dados:
MEDLINE
Idioma:
En
Revista:
Nat Prod Res
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
China