Design, synthesis, and antibacterial activity of quinazolinone derivatives containing amides
作者:Wenjuan Zhang、Yunying Zhu、Miaohe Zhang、Honglan Mou、Rong Wu、Shouying Tang、Han Zhou、Jianlin Luo、Xian Wei、Shuang Feng、Song Bai
DOI:10.1016/j.phytol.2023.07.003
日期:2023.8
In this study, a series of new quinazolinone derivatives containing amides was designed and synthesized using the principle of active splicing. These compounds were tested for their biological activity and found to possess some antibacterial activity. Among these, compound 18 showed good activity against Pseudomonas syringae pv. actinidiae (Psa) in vitro with an EC50 value of 39.2 mg/L, which was superior
本研究利用主动剪接原理设计合成了一系列新型含酰胺喹唑啉酮衍生物。对这些化合物的生物活性进行了测试,发现它们具有一定的抗菌活性。其中,化合物18对丁香假单胞菌表现出良好的活性。猕猴桃( Psa )体外EC 50值为 39.2 mg/L,优于噻二唑铜 (73.9 mg/L) 和噻唑锌 (45.1 mg/L)。化合物18还对米黄单胞菌表现出良好的抗菌活性。米霉( Xoo)在100 mg/L的体外,抑制率为70.9%,优于噻二唑铜(68.5%)和噻唑锌(70.2%)。根据构效关系分析,不同的R 1位点或电子给体取代基的引入极大地影响了化合物的抗菌活性。经过扫描电子显微镜实验,发现化合物18会导致细菌破碎和表面起皱,从而产生抗菌作用。因此,化合物18可以进一步优化,为潜在的抗菌剂奠定基础。