Abstract
Chalcone, flavone, and flavanone had been synthesized as candidate of the antimalarial compounds. The chalcone 1was synthesised from 2,4-dihydroxyacetophenone and 4-metoxybenzaldehyde as starting materials using base catalyst KOH via Claisen-Schmidt Condensation. The synthesis flavone 2was carried out by cyclization of chalcone 1using I2 in DMSO, while the flavanone 3was produced by cyclization of chalcone 1using NaOAc as a base catalyst. An in vitro antimalarial activity of the compound 1, 2and 3have been evaluated with the chloroquine diphosphate as a positive control in various concentration, and this assay was carried out according to the Basilico method. The IC50value of compound 1, 2, 3and a positive control were 0.25; 0.62; 1.33 and 0.35 mM, respectively. The result showed that chalcone1with the lowestIC50value is a potential candidate as an antimalarial agent.
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