artemisinin   Click here for help

GtoPdb Ligand ID: 9954

Synonyms: qinghaosu
Antimalarial Ligand
Comment: Artemisinin is a sesquiterpene lactone with an unusual endoperoxide bridge, believed to be responsible for the antimalarial activity of the compound. It is a natural product, isolated from the qinghao or sweet wormwood plant (Artemisia annua) and used in Chinese traditional medicine to treat fever.
Artemisinin is a prodrug that is converted to the active metabolite artenimol (dihydroartemisinin).
We show one representation of artemisinin here. As with other natural products, there are alternative chemical structures due to the complex stereochemistry.

The Malaria tab on this ligand page provides additional curator comments of relevance to the Guide to MALARIA PHARMACOLOGY.
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2D Structure
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Physico-chemical Properties
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Hydrogen bond acceptors 5
Hydrogen bond donors 0
Rotatable bonds 0
Topological polar surface area 53.99
Molecular weight 282.15
XLogP 3.04
No. Lipinski's rules broken 0
SMILES / InChI / InChIKey
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Canonical SMILES O=C1OC2OC3(C)CCC4C2(C(C1C)CCC4C)OO3
Isomeric SMILES O=C1O[C@@H]2O[C@@]3(C)CC[C@@H]4[C@]2([C@H]([C@H]1C)CC[C@H]4C)OO3
InChI InChI=1S/C15H22O5/c1-8-4-5-11-9(2)12(16)17-13-15(11)10(8)6-7-14(3,18-13)19-20-15/h8-11,13H,4-7H2,1-3H3/t8-,9-,10+,11+,13-,14-,15-/m1/s1
InChI Key BLUAFEHZUWYNDE-NNWCWBAJSA-N
Bioactivity Comments
The interaction table below provides data from an evaluation of the antimalarial (asexual blood stage) activity of artemisinin, using a panel of P. falciparum strains.
Whole organism assay data
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MOA/likely target Sp. Assay description Type Action Value Parameter Concentration range (M) Reference
Unknown MOA PfV1/S Parasite growth inhibition assay - - 9.2 pIC50 - 1
pIC50 9.2 (IC50 6x10-10 M) [3H]-hypoxanthine incorporation [1]
Lifecycle stages: Plasmodium asexual blood stage (erythrocytic merozoite, trophozoite, erythrocytic schizont)
Unknown MOA PfD6 Parasite growth inhibition assay - - 9.1 pIC50 - 1
pIC50 9.1 (IC50 8x10-10 M) [3H]-hypoxanthine incorporation [1]
Lifecycle stages: Plasmodium asexual blood stage (erythrocytic merozoite, trophozoite, erythrocytic schizont)
Unknown MOA Pf7G8 Parasite growth inhibition assay - - 8.5 pIC50 - 1
pIC50 8.5 (IC50 3x10-9 M) [3H]-hypoxanthine incorporation [1]
Lifecycle stages: Plasmodium asexual blood stage (erythrocytic merozoite, trophozoite, erythrocytic schizont)
Unknown MOA PfK1 Parasite growth inhibition assay - - 8.3 pIC50 - 1
pIC50 8.3 (IC50 5.4x10-9 M) [3H]-hypoxanthine incorporation [1]
Lifecycle stages: Plasmodium asexual blood stage (erythrocytic merozoite, trophozoite, erythrocytic schizont)
Unknown MOA PfNF54 Parasite growth inhibition assay - - 8.2 pIC50 - 1
pIC50 8.2 (IC50 5.8x10-9 M) [3H]-hypoxanthine incorporation [1]
Lifecycle stages: Plasmodium asexual blood stage (erythrocytic merozoite, trophozoite, erythrocytic schizont)
Unknown MOA PfW2 Parasite growth inhibition assay - - 8.1 pIC50 - 1
pIC50 8.1 (IC50 7.1x10-9 M) [3H]-hypoxanthine incorporation [1]
Lifecycle stages: Plasmodium asexual blood stage (erythrocytic merozoite, trophozoite, erythrocytic schizont)
Unknown MOA PfTM90C2A Parasite growth inhibition assay - - 7.8 pIC50 - 1
pIC50 7.8 (IC50 1.51x10-8 M) [3H]-hypoxanthine incorporation [1]
Lifecycle stages: Plasmodium asexual blood stage (erythrocytic merozoite, trophozoite, erythrocytic schizont)