Synthesis of deuterated [D<sub>32</sub>]oleic acid and its phospholipid derivative [D<sub>64</sub>]dioleoyl-<i>sn</i>-glycero-3-phosphocholine
作者:Tamim A. Darwish、Emily Luks、Greta Moraes、Nageshwar R. Yepuri、Peter J. Holden、Michael James
DOI:10.1002/jlcr.3088
日期:2013.7
Oleic acid and its phospholipid derivatives are fundamental to the structure and function of cellular membranes. As a result, there has been increasing interest in the availability of their deuterated forms for many nuclear magnetic resonance, infrared, mass spectroscopy and neutron scattering studies. Here, we present for the first time a straightforward, large-scale (gram quantities) synthesis of highly deuterated [D32]oleic acid by using multiple, yet simple and high yielding reactions. The precursors for the synthesis of [D32]oleic acid are [D14]azelaic acid and [D17]nonanoic acid, which were obtained by complete deuteration (>98% D) of their 1H forms by using metal catalysed hydrothermal H/D exchange reactions. The oleic acid was produced with ca. 94% D isotopic purity and with no contamination by the trans-isomer (elaidic acid). The subsequent synthesis of [D64]dioleoyl-sn-glycero-3-phosphocholine from [D32]oleic acid is also described. Copyright © 2013 John Wiley & Sons, Ltd.
油酸及其磷脂衍生物是细胞膜结构和功能的基础。因此,对于许多核磁共振、红外、质谱和中子散射研究,人们对获得其氘代形式越来越感兴趣。在这里,我们首次提出了一种直接的大规模(克级)合成高度氘代[D32]油酸的方法,该方法使用了多个简单且产率高的反应步骤。合成[D32]油酸的前体是[D14]壬二酸和[D17]壬酸,它们是通过金属催化水热H/D交换反应实现了完全氘化(>98% D)的1H形式得到的。合成的油酸具有约94%的D同位素纯度,并且不含反式异构体(反油酸)污染。此外,还描述了从[D32]油酸合成[D64]二油酰-sn-甘油-3-磷酸胆碱的过程。版权所有©2013 John Wiley & Sons, Ltd.