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Updated: Dec 18, 2025

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Published on: February 9, 2021
Amalgamating Isatin/Indole/Nitroimidazole with 7-chloroquinolines via azide-alkyne cycloaddition: Synthesis,
Sumit Kumar1, Anu Saini2, Jenny Legac3
1Department of Chemistry, Guru Nanak Dev University, Amritsar, India.
Abstract:
The present paper describes the synthesis, anti-plasmodial, and cytotoxic evaluation of 7-chloroquinoline-based conjugates with isatins/indoles/ nitroimidazoles, obtained via Cu-promoted 1,3-dipolar cycloadditions. On contemplating SAR of the synthesized series, the inclusion of indole and nitroimidazole-core improved the anti-plasmodial activities while the isatin seemed to have a lesser effect. The conjugate with a nitroimidazole-core and hexyl chain length as a spacer between the two pharmacophores was found to be most potent among the synthesized series and displayed an IC50 of 0.12 µM and a selectivity index of 1748.
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