10.1016/j.bmc.2007.09.025
The study focuses on the synthesis and evaluation of a series of benzaldehyde 4-phenyl-3-thiosemicarbazones (1a–p) and 2-[(phenylmethylene)hydrazono]-4-oxo-3-phenyl-5-thiazolidineacetic acids (2a–p) for their anti-Toxoplasma gondii and antimicrobial activities. These compounds were synthesized and characterized using techniques such as IR, 1H, and 13C NMR. The purpose of these chemicals was to assess their potential as treatments against the intracellular parasite Toxoplasma gondii, which causes toxoplasmosis, and to evaluate their antimicrobial properties against various bacteria and fungal species. The study aimed to discover new, less-toxic, and more effective drugs for the treatment of toxoplasmosis and to combat microbial infections, given the increasing resistance of pathogens to existing treatments. The compounds were tested for their ability to reduce the percentage of infected cells and the mean number of parasites per cell, as well as their toxicity against intracellular parasites. The results showed that most of the 4-thiazolidinones demonstrated effective toxicity against intracellular parasites with IC50 values ranging from 0.05 to 1 mM and also exhibited promising antimicrobial activity, with some compounds showing better activity than standard drugs against certain microbial strains.