Potent antimalarial activity of newly synthesized substituted chalcone analogs in vitro |
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Authors: | Satish K Awasthi Nidhi Mishra Brajesh Kumar Manish Sharma Amit Bhattacharya Lokesh C Mishra Virendra K Bhasin |
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Institution: | (1) Chemical Biology Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India;(2) Department of Zoology, North Campus, University of Delhi, Delhi, 110007, India |
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Abstract: | Abstract Several new chalcone analogues were synthesized and evaluated as inhibitors of malaria parasite. Inhibitory activity was
determined in vitro against a chloroquine-sensitive Plasmodium falciparum strain of parasites. The compound 3-(4-methoxyphenyl)-1-(4-pyrrol-1-yl-phenyl)prop-2-en-1-one was found to be the most active
with 50% inhibition concentration (IC50) of 1.61 μg/ml. This inhibitory concentration is comparable to a prototype phytochemical chalcone, licochalcone A, with an
IC50 of 1.43 μg/ml. The present study suggests that small, lipophilic nitrogen heterocyclic ring A together with small hydrophobic
functionality at ring B can enhance antimalarial activity. These results suggest that chalcones are a class of compounds that
provides an option of developing inexpensive, synthetic therapeutic antimalarial agents in the future.
Graphical Abstract Claisen-Schmidt condensation method was employed to synthesize various substituted chalcones. Among all, 3-(4-Methoxyphenyl)-1-(4-pyrrol-1-yl-phenyl)prop-2-en-1-one
was found to be most effective with IC50 value of 1.6 μg/ml in vitro against chloroquine sensitive strain (3D7) of Plasmodium falciparum.
![MediaObjects/44_2008_9137_Figa_HTML.gif](/content/g087720081357433/MediaObjects/44_2008_9137_Figa_HTML.gif) |
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Keywords: | Chalcones Synthesis In vitro antimalarial activity Plasmodium falciparum |
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