Triazoles have demonstrated significant efficacy in the
treatment
of fungal infections. However, increasing drug resistance is a growing
concern that negatively impacts their effectiveness. By designing
a well-crafted side chain, triazoles can be endowed with advantages,
like higher potency and the ability to overcome drug resistance. This
highlights the diverse interactions between side chains and CYP51.
To explore novel triazole antifungal agents, we synthesized three
series of fluconazole-core compounds and focused on optimizing the
chain based on molecule docking and in vitro results. The most potent
S-F24 exhibited excellent broad-spectrum
antifungal activity that was better or comparable to clinically used
azoles.
S-F24 maintained its potency
even against multi-resistant Candida albicans. Additionally,
S-F24 displayed a good
safety profile with high selectivity, low hemolytic effects, and low
tendency to induce resistance. Our findings collectively demonstrated
that there was still a high potential for side-chain modification
in the development of novel azoles.