Synthesis and antiplasmodial activity of novel 2,4-diaminopyrimidines.
Basic Information
ID: ALA1153120
Journal: Bioorg Med Chem Lett
Title: Synthesis and antiplasmodial activity of novel 2,4-diaminopyrimidines.
Authors: Martyn DC, Nijjar A, Celatka CA, Mazitschek R, Cortese JF, Tyndall E, Liu H, Fitzgerald MM, O'Shea TJ, Danthi S, Clardy J.
Abstract: Two sets of diaminopyrimidines, totalling 45 compounds, were synthesized and assayed against Plasmodium falciparum. The SAR was relatively shallow, with only the presence of a 2-(pyrrolidin-1-yl)ethyl group at R(2) significantly affecting activity. A subsequent series addressed high LogD values by introducing more polar side groups, with the most active compounds possessing diazepine and N-benzyl-4-aminopiperidyl groups at R(1)/R(2). A final series attempted to address high in vitro microsomal clearance by replacing the C6-Me group with CF(3), however antiplasmodial activity decreased without any improvement in clearance. The C6-CF(3) group decreased hERG inhibition, probably as a result of decreased amine basicity at C2/C4.
CiteXplore: 19914064
DOI: 10.1016/j.bmcl.2009.10.133
Patent ID: ┄