Design, synthesis and biological evaluation of 6-aryl-1,6-dihydro-1,3,5-triazine-2,4-diamines as antiplasmodial antifolates?

Organic & Biomolecular Chemistry Pub Date: 2016-07-25 DOI: 10.1039/C6OB01350C

Abstract

The design, synthesis and biological evaluation of a series of 6-aryl-1,6-dihydro-1,3,5-triazine-2,4-diamines is described. These compounds exhibited in vitro antiplasmodial activity in the low nanomolar range against both drug sensitive and drug resistant strains of P. falciparum, with 1-(3-(2,4-dichlorophenoxy)propyl)-6-phenyl-1,6-dihydro-1,3,5-triazine-2,4-diamine hydrochloride identified as the most potent compound from this series against the drug resistant FCR-3 strain (IC50 2.66 nM). The compounds were not toxic to mammalian cells at therapeutic concentrations and were shown to be inhibitors of parasitic DHFR in a biochemical enzyme assay.

Graphical abstract: Design, synthesis and biological evaluation of 6-aryl-1,6-dihydro-1,3,5-triazine-2,4-diamines as antiplasmodial antifolates
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