Modified tetra-oxygenated xanthones analogues as anti-MRSA and P. aeruginosa agent and their synergism with vancomycin
作者:Nawong Boonnak、Suchada Chantrapromma、Korbtham Sathirakul、Chutima Kaewpiboon
DOI:10.1016/j.bmcl.2020.127494
日期:2020.10
isolated xanthones from the C. cochinchinense and G. mangostana were evaluated and tested for antibacterial activities. Isolated 4 and 5 exhibited potent anti-MRSA and P. aeruginosa activity, but showed poor pharmacokinetic properties via ADMET prediction. It led us to improve pharmacokinetic properties of 4 and 5 by partially modifying them in acidic condition yielding fourteen analogues. It was found
评价了五个从C. cochinchinense和G. mangostana分离出的氧杂蒽酮,并测试了其抗菌活性。分离的4和5显示出有效的抗MRSA和铜绿假单胞菌活性,但是通过ADMET预测显示出不良的药代动力学性质。它导致我们通过在酸性条件下部分修饰4和5以产生14个类似物来改善4和5的药代动力学特性。发现类似物4b,4d和5b具有适当的药代动力学性质,而只有4b显示出最佳的抗MRSA和铜绿假单胞菌。活动。SEM结果表明,4b可能与MRSA和铜绿假单胞菌相互作用或破坏细胞壁。而且,组合图4b和万古霉素表现出对MRSA和协同效应铜绿假单胞菌4.98的MIC值(MIC = 18.75 μ克/毫升为图4b)和9.52 μ克/毫升(MIC = 75 μ克/毫升为图4b), 分别。