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In Vitro Drug Screening Against All Life Cycle Stages of Trypanosoma cruzi Using Parasites Expressing β-galactosidase
Published on: November 5, 2021
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Trypanocidal Activity of Flavanone Derivatives.
Gabriela Maciel Diogo1, Josimara Souza Andrade1, Policarpo Ademar Sales Junior2
1Chemistry Department, ICEB, Federal University of Ouro Preto, Campus Universitário Morro do Cruzeiro, Ouro Preto 35400-000, MG, Brazil.
Molecules (Basel, Switzerland)
|January 23, 2020
Summary
New 3-benzoyl-flavanone derivatives show potent activity against Chagas disease parasites. One compound, a nitrofuran derivative, outperformed the current drug Benznidazole in treating American trypanosomiasis.
Area of Science:
- Medicinal Chemistry
- Parasitology
- Drug Discovery
Background:
- Chagas disease (American trypanosomiasis) is a WHO-neglected tropical disease.
- Current treatments (Benznidazole, Nifurtimox) have limited efficacy in the chronic phase and significant side effects.
- There is a critical need for novel, effective therapeutics for Chagas disease.
Purpose of the Study:
- To synthesize novel 3-benzoyl-flavanone derivatives.
- To evaluate the in vitro trypanocidal activity of these compounds against *Trypanosoma cruzi*.
- To identify potential new drug candidates for Chagas disease treatment.
Main Methods:
- A 3-step synthetic procedure was employed to prepare novel 3-benzoyl-flavanone derivatives.
- Whole cell-based screening methodology was used for anti-*Trypanosoma cruzi* activity assessment.
- Simultaneous testing against both parasite forms responsible for human infection was performed.
Main Results:
- Several synthesized 3-benzoyl-flavanone derivatives exhibited promising anti-*Trypanosoma cruzi* activity.
- The most potent compound, a flavanone derivative with a nitrofuran moiety, demonstrated superior efficacy compared to Benznidazole.
- Satisfactory yields were achieved for the novel synthesized compounds.
Conclusions:
- 3-benzoyl-flavanones represent a promising class of compounds for Chagas disease treatment.
- The identified nitrofuran-bearing flavanone derivative warrants further investigation as a potential therapeutic agent.
- This study contributes to the development of new strategies against neglected tropical diseases like American trypanosomiasis.

