Design, synthesis and antibacterial activity of novel pleuromutilin derivatives with thieno[2,3-d]pyrimidine substitution
作者:Rongcai Ding、Xiaoxia Wang、Jianfang Fu、Yaoyao Chang、Yingxue Li、Yajing Liu、Yue Liu、Jinlong Ma、Jinxing Hu
DOI:10.1016/j.ejmech.2022.114398
日期:2022.7
of the tested compounds exhibited moderate antibacterial activity against Staphylococcus aureus, Streptococcus agalactiae, and Escherichia coli. Compound A11 was the most active and displayed bacteriostatic activities against methicillin-resistant S. aureus, with MIC values as low as 0.00191 μg/mL, which is 162 and 32 times lower than that of the marketed antibiotics tiamulin and retapamulin, respectively
设计、合成了一系列具有取代噻吩并嘧啶的新型截短侧耳素衍生物,并评估了其抗菌活性。在本研究中,通过抑制环测试、最低抑菌浓度(MIC)测试、实时生长曲线、时间杀伤动力学测定、细胞毒性测定和分子对接来研究这些化合物的活性。大多数测试化合物对金黄色葡萄球菌、无乳链球菌和大肠杆菌表现出中等的抗菌活性。化合物A11活性最强,对耐甲氧西林金黄色葡萄球菌具有抑菌活性,MIC值低至0.00191 μg/mL,分别比市售抗生素泰妙菌素和瑞他莫林低162倍和32倍。此外, A11的作用机制通过分子对接研究得到证实。