Indole-3-carbaldehyde Semicarbazone Derivatives: Synthesis, Characterization, and Antibacterial Activities
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The two-dimensional NMR (in acetone-d6) spectral data revealed that the molecules 1 and 2 in solution are in the cisE isomeric form. This evidence is supported by DFT calculations at the B3LYP/6-311++G(d,p) level of theory where it was shown that the corresponding most stable conformers of the synthesized compounds have a cisE geometrical configuration, in both the gas and liquid (acetone and DMSO) phases. The in vitro antibacterial activity of compounds 1-4 was determined against Gram-positive (Staphylococcus aureus and Bacillus subtilis) and Gram-negative (Pseudomonas aeruginosa and Escherichia coli) bacteria. Among all the tested semicarbazones, 1 and 2 exhibited similar inhibitory activities against Staphylococcus aureus (MIC = 100 and 150 µg/mL, respectively) and Bacillus subtilis (MIC = 100 and 150 µg/mL, respectively). On the other hand, 3 and 4 were relatively less active against the tested bacterial strains compared with 1, 2, and tetracycline. © 2020 Fernando Carrasco et al.
How to citeCarrasco Solís, F., Hernández Gorritti, W., Chupayo, O., Celedonio M., A., Oramas Royo, S., Spodine, E.,Tamariz Angeles, C., Olivera Gonzale, P. & Dávalos, J. (2020). Indole-3-carbaldehyde Semicarbazone Derivatives: Synthesis, Characterization, and Antibacterial Activities. Journal of Chemistry. 2020, 1-9. https://doi.org/10.1155/2020/7157281
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