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Updated: Jul 10, 2026

An Efficient Method for the Synthesis of Peptoids with Mixed Lysine-type/Arginine-type Monomers and Evaluation of Their Anti-leishmanial Activity
Published on: November 2, 2016
Azaterphenyl diamidines as antileishmanial agents
Laixing Hu1, Reem K Arafa, Mohamed A Ismail
1Department of Chemistry and Center for Biotechnology and Drug Design, Georgia State University, Atlanta, GA 30303, USA.
Abstract:
Eighteen diamidino azaterphenyls and analogues were evaluated as anti-leishmanials; nine of the compounds gave IC50 values less than 1 microM, five exhibited values less than 0.40 microM, and two gave values less than 0.10 microM in a Leishmania donovani axenic amastigote assay. The activity of the diamidines strongly depends on the ring N-atom location relative to the amidine groups and correlates with DNA affinity. Transmission electron microscopy studies showed a dramatic dilation of the mitochondrion and evidence of disintegration of the kinetoplast of the amastigotes.
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