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3-phenacylideneoxindoles as a new class of antifungal compounds against Paracoccidioides spp. Supplementary material

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posted on 2023-01-20, 16:41 authored by Lıvia C Silva, Raimundo F dos Santos Filho, Amanda A de Oliveira, Felipe T. Martins, Silvio Cunha, Célia Maria de Almeida Soares, Maristela Pereira

Aims: Considering the need to identify new compounds with antifungal action, the activity of five

3-phenacylideneoxindoles compounds was evaluated. Materials & methods: The compounds were

synthesized, and their antifungal activity was elucidated through minimum inhibitory concentration

tests and interaction assay with other antifungals. Potential targets of compounds were predicted in

silico. Results: 3-phenacylideneoxindoles compounds inhibited fungal growth with minimum inhibitory

concentration and minimum fungicidal concentration ranging from 3.05 to 12.26 μM. The compounds

demonstrated high selectivity index and presented a synergistic effect with itraconazole. In silico

prediction revealed the pentafunctional AROM polypeptide, enolase, superoxide dismutase, catalase

and kinases as proteins targets of the compound 4a. Conclusion: The results demonstrate that 3-

phenacylideneoxindoles is a potential new class of antifungal compounds for paracoccidioidomycosis



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