Characterization of 2,4-Diamino-6-oxo-1,6-dihydropyrimidin-5-yl Ureido Based Inhibitors of <i>Trypanosoma brucei</i> FolD and Testing for Antiparasitic Activity
作者:Thomas C. Eadsforth、Andrea Pinto、Rosaria Luciani、Lucia Tamborini、Gregorio Cullia、Carlo De Micheli、Luciana Marinelli、Sandro Cosconati、Ettore Novellino、Leonardo Lo Presti、Anabela Cordeiro da Silva、Paola Conti、William N. Hunter、Maria P. Costi
DOI:10.1021/acs.jmedchem.5b00687
日期:2015.10.22
The bifunctional enzyme N-5,N-10-methylenetetrahydrofolate dehydrogenase/cyclo hydrolase (Poll)) is essential for growth in Trypanosomatidae. We sought to develop inhibitors of Trypanosoma brucei FolD (TbFolD) as potential antiparasitic agents. Compound 2 was synthesized, and the molecular structure was unequivocally assigned through X-ray crystallography of the intermediate compound 3. Compound 2 showed an IC50 of 2.2 mu M, against TbFolD and displayed antiparasitic activity against T. brucei (IC50 49 mu M). Using compound 2, we were able to obtain the first X-ray structure of TbFolD in the presence of NADP(+). and the inhibitor, which then guided the rational design of a new series of potent TbFolD inhibitors.