Structure-Activity Relationship Studies Reveal New Astemizole Analogues Active against Plasmodium falciparum in Vitro. Mambwe, D., Kumar, M., Ferger, R., Taylor, D., Njoroge, M., Coertzen, D., Reader, J., Van Der Watt, M., Birkholtz, L., & Chibale, K. ACS Medicinal Chemistry Letters, 12(8):1333–1341, 2021.
doi  abstract   bibtex   
In the context of drug repositioning and expanding the existing structure-activity relationship around astemizole (AST), a new series of analogues were designed, synthesized, and evaluated for their antiplasmodium activity. Among 46 analogues tested, compounds 21, 30, and 33 displayed high activities against asexual blood stage parasites (PfNF54 IC50 = 0.025-0.043 $μ$M), whereas amide compound 46 additionally showed activity against late-stage gametocytes (stage IV/V; PfLG IC50 = 0.6 ± 0.1 $μ$M) and 860-fold higher selectivity over hERG (46, SI = 43) compared to AST. Several analogues displaying high solubility (Sol \textgreater 100 $μ$M) and low cytoxicity in the Chinese hamster ovary (SI \textgreater 148) cell line have also been identified.
@article{Mambwe2021a,
abstract = {In the context of drug repositioning and expanding the existing structure-activity relationship around astemizole (AST), a new series of analogues were designed, synthesized, and evaluated for their antiplasmodium activity. Among 46 analogues tested, compounds 21, 30, and 33 displayed high activities against asexual blood stage parasites (PfNF54 IC50 = 0.025-0.043 $\mu$M), whereas amide compound 46 additionally showed activity against late-stage gametocytes (stage IV/V; PfLG IC50 = 0.6 ± 0.1 $\mu$M) and 860-fold higher selectivity over hERG (46, SI = 43) compared to AST. Several analogues displaying high solubility (Sol {\textgreater} 100 $\mu$M) and low cytoxicity in the Chinese hamster ovary (SI {\textgreater} 148) cell line have also been identified.},
author = {Mambwe, D. and Kumar, M. and Ferger, R. and Taylor, D. and Njoroge, M. and Coertzen, D. and Reader, J. and {Van Der Watt}, M. and Birkholtz, L.-M. and Chibale, K.},
doi = {10.1021/acsmedchemlett.1c00328},
journal = {ACS Medicinal Chemistry Letters},
number = {8},
pages = {1333--1341},
title = {{Structure-Activity Relationship Studies Reveal New Astemizole Analogues Active against Plasmodium falciparum in Vitro}},
volume = {12},
year = {2021}
}

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