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    Synthesis and antimicrobial activity of molecular hybrids based on eugenol and chloramphenicol pharmacophores.
    (2023) Oliveira, Lucas Martins; Siqueira, Fallon dos Santos; Silva, Michelle T.; Machado, José Vaz Cardoso; Cordeiro, Cleydson Finotti; Diniz, Lívia de Figueiredo; Campos, Marli Matiko Anraku de; Franco, Lucas Lopardi; Souza, Thiago Belarmino de; Hawkes, Jamie Anthony; Carvalho, Diogo Teixeira
    In the constant search for new pharmacological compounds, molecular hybridisation is a well-known technique whereby two or more known pharmacophoric subunits are combined to create a new “hybrid” compound. This hybrid is expected to maintain the characteristics of the original compounds whilst demonstrating improvements to their pharmacological action. Accordingly, we report here a series of molecular hybrid compounds based upon eugenol and chloramphenicol pharmacophores. The hybrid compounds were screened for their in vitro antimicrobial potential against Gram-negative and Gram-positive bacteria and also rapidly growing mycobacteria (RGM). The results highlight that the antimicrobial profiles of the hybrid compounds improve in a very clear fashion when moving through the series. The most prominent results were found when comparing the activity of the hybrid compounds against some of the multidrug-resistant clinical isolates of Pseudomonas aeruginosa, methicillin-resistant clinical isolates of Staphylococcus aureus (MRSA) and clinical isolates of rapidly growing mycobacteria.