Total Synthesis of the Lipid Mediator PD1<sub>n-3 DPA</sub>: Configurational Assignments and Anti-inflammatory and Pro-resolving Actions
作者:Marius Aursnes、Jørn E. Tungen、Anders Vik、Romain Colas、Chien-Yee C. Cheng、Jesmond Dalli、Charles N. Serhan、Trond V. Hansen
DOI:10.1021/np4009865
日期:2014.4.25
The polyunsaturated lipid mediator PD1n-3 DPA (5) was recently isolated from self-resolving inflammatory exudates of 5 and human macrophages. Herein, the first total synthesis of PD1n-3 DPA (5) is reported in 10 steps and 9% overall yield. These efforts, together with NMR data of its methyl ester 6, confirmed the structure of 5 to be (7Z,10R,11E,13E,15Z,17S,19Z)-10,17-dihydroxydocosa-7,11,13,15,19-pentaenoic
多不饱和脂质介质 PD1 n-3 DPA ( 5 ) 最近从5和人类巨噬细胞的自消炎性渗出液中分离出来。在此,第一次全合成 PD1 n-3 DPA ( 5 ) 报告了 10 个步骤和 9% 的总产率。这些努力,连同其甲酯6 的核磁共振数据,证实了5的结构为(7 Z ,10 R ,11 E ,13 E ,15 Z ,17 S ,19 Z)-10,17-dihydroxydocosa-7,11,13,15,19-pentaenoic acid。所提出的生物合成途径,涉及环氧化物中间体,得到了捕获实验结果的支持。此外,从合成甲酯6 的水解中获得的游离酸5 的LC-MS/MS 数据与内源性产生的生物材料的数据相匹配。天然产物 PD1 n-3 DPA ( 5 ) 显示出有效的抗炎特性以及刺激人类巨噬细胞吞噬作用和胞吞作用的促分解作用。这些结果为越来越多的专门的促分解脂质介质和途径的 n-3 DPA 结构