Using <sup>2</sup>
H labelling to improve the NMR detectability of pyridine and its derivatives by SABRE
作者:Philip Norcott、Michael J. Burns、Peter J. Rayner、Ryan E. Mewis、Simon B. Duckett
DOI:10.1002/mrc.4703
日期:2018.7
By introducing a range of 2 H labels into pyridine and the para-substituted agents, methyl isonicotinate and isonicotinamide, we significantly improve their NMR detectability in conjunction with the signal amplification by reversible exchange process. We describe how the rates of T1 relaxation for the remaining 1 H nuclei are increased and show how this leads to a concomitant increase in the level
通过将一系列2 H标记引入吡啶和对位取代剂异烟酸甲酯和异烟酰胺,我们可以通过可逆交换过程放大信号,从而显着提高其NMR检测能力。我们描述了如何增加剩余1 H核的T1弛豫率,并显示这如何导致1 H和13 C超极化水平的同时增加,最终可以检测到。