Can Antimalarial Phytochemicals be a Possible Cure for COVID-19? Molecular Docking Studies of Some Phytochemicals to SARS-CoV-2 3C-like Protease

(E-pub Ahead of Print)

Author(s): Anamul Hasan, Khoshnur Jannat, Tohmina Afroze Bondhon, Rownak Jahan, Md Shahadat Hossan, Maria de Lourdes Pereira, Veeranoot Nissapatorn*, Christophe Wiart, Mohammed Rahmatullah*

Journal Name: Infectious Disorders - Drug Targets
Formerly Current Drug Targets - Infectious Disorders

Article ID: e290721195143
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Objective: To evaluate the efficacy of reported anti-malarial phytochemicals as lead compounds for possible drug development against COVID-19.

Methods: An in silico approach was used in this study to determine through molecular docking the binding affinities and site of binding of these phytochemicals to the 3C-like protease of COVID-19 which is considered as the main protease of the virus.

Results: A number of anti-malarial phytochemicals like apigenin-7-O-glucoside, decurvisine, luteolin- 7-O-glucoside, sargabolide J, and shizukaols A, B, F, and G showed predicted high binding energies with ΔG values of -8.0 kcal/mol or higher. Shizukaols F and B demonstrated the best binding energies of -9.5 and -9.8, respectively. The acridone alkaloid 5-hydroxynoracronycine also gave a predicted high binding energy of -7.9 kcal/mol.

Conclusion: This is for the first time that decursivine and several shizukaols were reported as potential anti-viral agents. These compounds merit further studies to determine whether they can be effective drug candidates against COVID-19.

Keywords: COVID-19, anti-malaria, phytochemicals, drug development, shizukaols.

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Article Details

Article ID: e290721195143
(E-pub Ahead of Print)
DOI: 10.2174/1871526521666210729164054

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