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Synthesis and Antimalarial Activities of a Diverse Set of Ariazole-Containing Furamidine Analogues.

Berger, Olivier, Kaniti, Archana, Ba, Christophe Tran van, Vial, Henri, Ward, Stephen ORCID:, Biagini, Giancarlo ORCID:, Bray, Patrick and O'Neill, Paul M (2011) 'Synthesis and Antimalarial Activities of a Diverse Set of Ariazole-Containing Furamidine Analogues.'. ChemMedChem, Vol 6, Issue 11, pp. 2094-2108.

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Four different series of triazole diamidines have been prepared by the Pinner method from the corresponding triazole dinitriles. Copper-catalyzed "click chemistry" was used for the synthesis of 1,4- and 4,5-substituted triazoles, aryl magnesium acetylide reagents for the 1,5-substituted triazoles, with a thermal dipolar addition reaction employed for the 2,4-substituted triazoles. In vitro antimalarial activity against two different PfCRT-modified parasite lines (Science 2002, 298, 210-213) of Plasmodium falciparum and inhibition of hemozoin formation were determined for each compound. Several diamidines with potent nanomolar antimalarial activities were identified, and selected molecules were resynthesized as their diamidoxime triazole prodrugs. One of these prodrugs, OB216, proved to be highly potent in vivo with an ED(50) value of 5 mg kg(-1) (po) and an observed 100 % cure rate (CD(100) ) of just 10 mg kg(-1) by oral (po) administration in mice infected with P. vinckei.

Item Type: Article
Uncontrolled Keywords: antiparasitic agents;chemotherapy;malaria;Plasmodium falciparum;triazoles
Subjects: QV Pharmacology > Anti-Inflammatory Agents. Anti-Infective Agents. Antineoplastic Agents > QV 256 Antimalarials
WC Communicable Diseases > Tropical and Parasitic Diseases > WC 770 Therapy
Faculty: Department: Groups (2002 - 2012) > Molecular & Biochemical Parasitology Group
Digital Object Identifer (DOI):
Depositing User: Mary Creegan
Date Deposited: 24 Oct 2011 12:58
Last Modified: 17 Jul 2020 10:58


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