Antibacterial Activity of Hexadecynoic Acid Isomers toward Clinical Isolates of Multidrug‐Resistant
<scp>
<i>Staphylococcus aureus</i>
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作者:David J. Sanabria‐Ríos、Christian Morales‐Guzmán、Joseph Mooney、Solymar Medina、Tomás Pereles‐De‐León、Ashley Rivera‐Román、Carlimar Ocasio‐Malavé、Damarith Díaz、Nataliya Chorna、Néstor M. Carballeira
DOI:10.1002/lipd.12213
日期:2020.3
In the present study, the structural characteristics that impart antibacterial activity to C16 alkynoic fatty acids (aFA) were further investigated. The syntheses of hexadecynoic acids (HDA) containing triple bonds at C‐3, C‐6, C‐8, C‐9, C‐10, and C‐12 were carried out in four steps and with an overall yield of 34–78%. In addition, HDA analogs containing a sulfur atom at either C‐4 or C‐5 were also
在本研究中,进一步研究了赋予C 16炔属脂肪酸(aFA)抗菌活性的结构特征。四个步骤进行了在C-3,C-6,C-8,C-9,C-10和C-12处含有三键的十六碳烯酸(HDA)的合成,总产率为34- 78%。此外,还分别制备了C-4或C-5含硫原子的HDA类似物,总产率分别为69-77%。这项研究的结果表明,C-2处的三键对于2-HDA所显示的抗菌活性至关重要,而三键距羰基的位置越远,其对革兰氏阳性细菌的杀菌活性就越低,包括耐甲氧西林金黄色葡萄球菌的临床分离株(CIMRSA)菌株。还对五种对环丙沙星(Cipro)耐药的CIMRSA菌株评估了2-HDA作为抗菌剂的潜力,证明与单独使用Cipro或等摩尔组合Cipro相比,2-HDA是抑制其生长的最有效方法。和2‐HDA。此外,已证明金黄色葡萄球菌DNA促旋酶的抑制作用可能与2-HDA表现出的抗菌活性有关。最后,确定了HDA类似物形成胶束的能力可