ArticleACS medicinal chemistry letters2015
SAR Studies of Diphenyl Cationic Trypanocides: Superior Activity of Phosphonium over Ammonium Salts.
Article in ACS medicinal chemistry letters, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 12 citations in OpenAlex.
- Kinetoplast-Directed Therapies: A Selective Mitochondrial Approach to Combat Leishmaniasis.Pharmaceuticals (Basel, Switzerland) · 2026Review
- Sustainable Antiparasitic Agents from an Agro-Industrial Waste: Mitochondria-Targeting Cashew Nutshell Liquid-Derived Phosphonium and Ammonium Salts.Journal of medicinal chemistry · 2025Article
- Uncovering the Unusual Inhibition Mechanism of a Trypanosome Alternative Oxidase Inhibitor Displaying Broad-Spectrum Activity against African Animal Trypanosomes.Journal of medicinal chemistry · 2025Article
- Review
- Potent Antitrypanosomal Activities of 3-Aminosteroids against African Trypanosomes: Investigation of Cellular Effects and of Cross-Resistance with Existing Drugs.Molecules (Basel, Switzerland) · 2019Article
- Trypanocidal action of bisphosphonium salts through a mitochondrial target in bloodstream form Trypanosoma brucei.International journal for parasitology. Drugs and drug resistance · 2016Article
Corrections and comments
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Authors and funding
3 authors at 3 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In previous studies, we have shown that phosphonium salt diphenyl derivatives are attractive antitrypanosomal hit compounds with EC50 values against Trypanosoma brucei in the nanomolar range. To evaluate the role of the cationic center on the trypanocidal activity and extend the structure-activity relationship (SAR) of this series, trialkylammonium, pyridinium, and quinolinium salt analogues were synthesized and evaluated in vitro against T. b. brucei. Similar SARs were observed with ammonium and phosphonium salts showing that charge dispersion and lipophilic groups around the cationic center are crucial to obtain submicromolar activities. The new compounds were equally effective against wild type (T. b. brucei s427) and resistant strains (TbAT1-KO and TbB48) of trypanosomes indicating that the P2 and high affinity pentamidine transporters (HAPT) are not essential to their trypanocidal action. Similarly to phosphonium salt derivatives, diffusion seems to be the main route of entry into trypanosomes.
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