Enantiomeric synthesis of natural alkylglycerols and their antibacterial and antibiofilm activities
作者:Deicy J. Fernández Montoya、Luis A. Contreras Jordan、Bárbara Moreno-Murillo、Edelberto Silva-Gómez、Humberto Mayorga-Wandurraga
DOI:10.1080/14786419.2019.1686370
日期:2021.8.3
Alkylglycerols (AKGs) are bioactive natural compounds that vary by alkyl chain length and degree of unsaturation, and their absolute configuration is 2S. Three AKGs (5l–5n) were synthesised in enantiomerically pure form, and were characterised for the first time together with 12 other known and naturally occurring AKGs (5a–5k, 5o). Their structures were established using 1H and 13C APT NMR with 2D-NMR
摘要 烷基甘油(AKGs)是通过烷基链长和不饱和度而变化的生物活性的天然化合物,它们的绝对构型为2小号。三个 AKGs ( 5l – 5n ) 以对映体纯的形式合成,并首次与其他 12 个已知和天然存在的 AKGs ( 5a – 5k , 5o )一起表征。它们的结构是使用1 H 和13 C APT NMR 与 2D-NMR、ESI-MS 或 HRESI-MS 和旋光数据建立的,并测试了它们的抗菌和抗生物膜活性。AKG 5a – 5m和5o对五种临床分离株和铜绿假单胞菌ATCC 15442显示出活性,MIC 值在 15–125 µg/mL 范围内。此外,在 MIC 的一半时,大多数 AKG 减少了 23%–99% 范围内的金黄色葡萄球菌生物膜形成和14%–64% 范围内的铜绿假单胞菌ATCC 15442 生物膜形成。在这项工作中评估的 AKG 的抗生物膜活性以前没有被研究过。