Filamenting temperature-sensitive mutant Z (FtsZ) protein plays a crucial role in the bacterial cell division machinery and is a validated drug target for antibacterial agents. The present invention relates to FtsZ-interacting compounds that possess a 2,4,6-trisubstituted pyrimidine scaffold. Some of these compounds possess potent anti-staphylococcal properties and potent antibacterial activities against clinically isolated MRSA strains. Compounds have been identified to exhibit low spontaneous frequency of resistance, low toxicity as well as the ability to rescue
G. mellonella
larvae infected with lethal dose of the MRSA ATCC 43300 strain. Characterization by saturation transfer difference NMR, light scattering assay and GTPase hydrolysis assay with purified
S. aureus
FtsZ protein verified the interaction of 2,4,6-trisubstituted pyrimidine with the FtsZ protein, further confirmed by observations of iconic filamentous cell phenotype and mislocalization of the Z-ring formation. Taken together, these pyrimidine derivatives have the potential as effective treatment of staphylococcal infections.
温度敏感突变体Z(FtsZ)蛋白在细菌细胞分裂机制中起着关键作用,是抗菌药物的验证靶点。本发明涉及具有2,4,6-三取代
嘧啶骨架的与FtsZ相互作用的化合物。这些化合物中的一些具有强效的抗葡萄球菌特性,对临床分离的MRSA菌株具有强效的抗菌活性。已经确定这些化合物具有低抗性自发频率、低毒性以及能够拯救感染了MRSA A
TCC 43300菌株致命剂量的G. mellonella幼虫的能力。通过饱和转移差异NMR、光散射测定和用纯化的S. aureus FtsZ蛋白进行的GTP酶
水解测定的特性验证了2,4,6-三取代
嘧啶与FtsZ蛋白的相互作用,进一步通过对标志性纤维状细胞表型和Z环形成的错位观察予以确认。综合来看,这些
嘧啶衍
生物有潜力作为治疗葡萄球菌感染的有效方法。