Design, Synthesis and Antibacterial Activities of Novel Amide Derivatives Bearing Dioxygenated Rings as Potential β-Ketoacyl-acyl Carrier Protein Synthase III (FabH) Inhibitors
作者:Yang Zhou、Yin-Qiu Liang、Xin-Yu Wang、Hao-Yun Chang、Su-Pei Hu、Juan Sun
DOI:10.1248/cpb.c22-00090
日期:2022.8.1
targets, β-ketoacyl-acyl carrier protein (ACP) synthase III (FabH) is the most attractive target. FabH would trigger the initiation of fatty acid biosynthesis and it is highly conserved among Gram-positive and -negative bacteria. A series of novel amide derivatives bearing dioxygenated rings were synthesized and developed as potent inhibitors of FabH. These compounds were determined by 1H-NMR, 13C-NMR, MS
脂肪酸的生物合成对细菌的生存至关重要。在这些有希望的靶点中,β-酮酰基-酰基载体蛋白 (ACP) 合酶 III (FabH) 是最有吸引力的靶点。FabH 将触发脂肪酸生物合成的启动,并且在革兰氏阳性和阴性细菌中高度保守。合成并开发了一系列带有双氧合环的新型酰胺衍生物,作为 FabH 的有效抑制剂。这些化合物通过1 H-NMR、13 C-NMR、MS 测定,并通过化合物19的晶体衍射研究进一步证实。此外,这些化合物被评估为强广谱抗菌活性。对一些具有强效抗菌活性的化合物进行了大肠杆菌检测(大肠杆菌) FabH 抑制活性。特别是,化合物19显示出最有效的抗菌活性,对测试菌株的最小抑制浓度 (MIC) 值为 1.56-3.13 mg/mL,并显示出最有效的大肠杆菌FabH 抑制活性,IC 50为 2.4 µM。进行对接模拟以将化合物19定位到大肠杆菌FabH 活性位点以确定可能的结合构象。 全尺寸图像