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Aim: To synthesize novel chloroquine analogues and evaluate them for antimicrobial and cytotoxic potential. Methods: Novel analogues were synthesized from chloroquine by nucleophilic substitution reaction at the 4-amino position. Results: Analogue CS1 showed maximum antimicrobial potential (30.3 ± 0.15 mm zone) against Pseudomonas aeruginosa and produced a 19.2 ± 0.21 mm zone against Candida albicans, while CS0 produced no zone at the same concentration. Analogue CS9 has excellent cytotoxic potential (HeLa cell line), showing 100% inhibition (IC50 = 8.9 ± 1.2 μg/ml), compared with CS0 (61.9% inhibition at 30 μg/ml). Conclusion: These synthesized chloroquine analogues have excellent activity against different microbial strains and cervical cancer cell lines (HeLa) compared with their parent molecule.
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Islam et al. (2024) studied this question.
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