Abstract
Aim: This work describes the synthesis and antimicrobial evaluation of 6-aminated 1,4-benzoquinones (6-AQs) against seven resistant pathogens.Materials & methods: The 6-AQs, synthesized via a Michael addition reaction between bromoquinone and p-substituted anilines, were assessed for their antimicrobial activity through both in vitro and in silico analyses.Results: Bromoquinone and 6-AQs with electron-withdrawing groups demonstrated activity against Pseudomonas aeruginosa, with minimum inhibitory concentrations ranging from 16 to 128μg/ml, comparable to standard antimicrobials. Two derivatives exhibited minimum inhibitory concentrations values against methicillin-resistant Staphylococcus aureus ranging from 64 to 128μg/ml. These compounds demonstrated both bacteriostatic and bactericidal effects, and antibiofilm features.Conclusion: The 6-AQs 19g and 19f showed a promising antimicrobial profile, indicating their potential as new therapeutic options.
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