Abstract The present work describes the in vitro antibacterial evaluation of some new pyrimidine derivatives. Twenty-two target compounds were designed, synthesized and preliminarily explored for their antimicrobial activities. The antimicrobial assay revealed that some target compounds exhibited significantly inhibitory efficiencies toward bacteria and fungal including drug-resistant pathogens. Compound
摘要 本工作描述了一些新型
嘧啶衍
生物的体外抗菌评价。设计,合成并初步探索了22种目标化合物的抗菌活性。抗菌测定表明,某些目标化合物对细菌和真菌(包括耐药病原体)表现出明显的抑制作用。化合物7c对革兰氏阳性细菌(例如
金黄色葡萄球菌4220),革兰氏阴性细菌(例如大肠杆菌1924)和真菌白色念珠菌7535表现出最强的抑制活性,MIC为2.4μmol/ L。化合物7c也是最有效的,对四种具有多重耐药性的革兰氏阳性细菌菌株的MIC为2.4或4.8μmol/ L。在人正常肝细胞(L02细胞)中评估了化合物7c,10a,19d和26b的毒性评估。分子对接模拟和分析表明,化合物7c与二氢叶酸还原酶(DHFR)的活性腔具有良好的相互作用。体外酶研究暗示化合物7c也显示出DHFR抑制作用。 图形摘要