Artemisinin–(Iso)quinoline Hybrids by C−H Activation and Click Chemistry: Combating Multidrug-Resistant Malaria

Çapcı A, Lorion MM, Wang H, Simon N, Leidenberger M, Borges Silva MC, Moreira DR, Zhu Y, Meng Y, Chen JY, Lee YM, Friedrich O, Kappes B, Wang J, Ackermann L, Tsogoeva S (2019)

Publication Type: Journal article

Publication year: 2019

Journal

DOI: 10.1002/anie.201907224

Abstract

A substantial challenge worldwide is emergent drug resistance in malaria parasites against approved drugs, such as chloroquine (CQ). To address these unsolved CQ resistance issues, only rare examples of artemisinin (ART)-based hybrids have been reported. Moreover, protein targets of such hybrids have not been identified yet, and the reason for the superior efficacy of these hybrids is still not known. Herein, we report the synthesis of novel ART–isoquinoline and ART–quinoline hybrids showing highly improved potencies against CQ-resistant and multidrug-resistant P. falciparum strains (EC50 (Dd2) down to 1.0 nm; EC50 (K1) down to 0.78 nm) compared to CQ (EC50 (Dd2)=165.3 nm; EC50 (K1)=302.8 nm) and strongly suppressing parasitemia in experimental malaria. These new compounds are easily accessible by step-economic C−H activation and copper(I)-catalyzed azide–alkyne cycloaddition (CuAAC) click reactions. Through chemical proteomics, putatively hybrid-binding protein targets of the ART-quinolines were successfully identified in addition to known targets of quinoline and artemisinin alone, suggesting that the hybrids act through multiple modes of action to overcome resistance.

Authors with CRIS profile

Involved external institutions

Chinese Academy of Medical Sciences (CAMS) China (CN) Georg-August-Universität Göttingen Germany (DE) National University of Singapore (NUS) Singapore (SG) Oswaldo Cruz Foundation / Fundação Oswaldo Cruz (FIOCRUZ) Brazil (BR)

How to cite

APA:

Çapcı, A., Lorion, M.M., Wang, H., Simon, N., Leidenberger, M., Borges Silva, M.C.,... Tsogoeva, S. (2019). Artemisinin–(Iso)quinoline Hybrids by C−H Activation and Click Chemistry: Combating Multidrug-Resistant Malaria. Angewandte Chemie International Edition. https://dx.doi.org/10.1002/anie.201907224

MLA:

Çapcı, Aysun, et al. "Artemisinin–(Iso)quinoline Hybrids by C−H Activation and Click Chemistry: Combating Multidrug-Resistant Malaria." Angewandte Chemie International Edition (2019).

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