Identification of substituted 2-thio-6-oxo-1,6-dihydropyrimidines as inhibitors of human lactate dehydrogenase
作者:Peter S. Dragovich、Benjamin P. Fauber、Laura B. Corson、Charles Z. Ding、Charles Eigenbrot、HongXiu Ge、Anthony M. Giannetti、Thomas Hunsaker、Sharada Labadie、Yichin Liu、Shiva Malek、Borlan Pan、David Peterson、Keith Pitts、Hans E. Purkey、Steve Sideris、Mark Ultsch、Erica VanderPorten、BinQing Wei、Qing Xu、Ivana Yen、Qin Yue、Huihui Zhang、Xuying Zhang
DOI:10.1016/j.bmcl.2013.04.001
日期:2013.6
A novel 2-thio-6-oxo-1,6-dihydropyrimidine-containing inhibitor of human lactate dehydrogenase (LDH) was identified by high-throughput screening (IC50 = 8.1 mu M). Biochemical, surface plasmon resonance, and saturation transfer difference NMR experiments indicated that the compound specifically associated with human LDHA in a manner that required simultaneous binding of the NADH co-factor. Structural variation of the screening hit resulted in significant improvements in LDHA biochemical inhibition activity (best IC50 = 0.48 mu M). A crystal structure of an optimized compound bound to human LDHA was obtained and explained many of the observed structure-activity relationships. (C) 2013 Elsevier Ltd. All rights reserved.