Biological Evaluation of 2-aminothiazole Hybrid as Antimalarial and Antitrypanosomal Agents: Design and Synthesis

Abstract

Background: A series of 2-aminothiazole schiff’s bases (1-24) were synthesized and screened against a few neglected tropical disorders (NTDs). Compounds 12 and 14 were found to have antitrypanosidal activity, whereas compound 14 was found to be more effective than standard benznidazole. The antiplasmodial assay provided three specific and effective compounds (9, 12 and 24) than standard chloroquine. Compound (21) inhibited Leishmania infantum, almost similar to Miltefosine. Methods: All the compounds were subjected to cytotoxicity assay and none of the compounds were found to be cytotoxicity. Molecular docking simulations revealed that four compounds (1, 9, 12 and 21) were found to similarly occupy the hydrophobic active site of trans-2-enoyl acyl carrier protein reductase of P. falciparum (PfENR) as triclosan and outcomes were closely related to their anti-malarial potencies. Results and Conclusion: The screening results against T. cruzi, T. brucei, L. donovani, L. infantum, P. falciferum and cytotoxicity assays provided a few significant to most potent compounds; two variant class of NTDs.