Synthesis of
<sup>13</sup>
C and
<sup>2</sup>
H Labeled Vinyl Pyruvate and Hyperpolarization of Pyruvate
作者:Arne Brahms、Andrey N. Pravdivtsev、Tim Stamp、Frowin Ellermann、Frank D. Sönnichsen、Jan‐Bernd Hövener、Rainer Herges
DOI:10.1002/chem.202201210
日期:2022.10.4
pyruvate is a highly promising tracer for in vivo metabolic MRI. A new synthetic approach provides access to the key precursor of 13Clabeled vinyl pyruvate with up to 67 % yield (8 times higher than previous methods). After spin order transfer with parahydrogen, 12 % 13C polarization was obtained, which corresponds to a signal gain in NMR and MRI of 16 500 (9.4 T).
超极化丙酮酸是一种非常有前途的体内代谢 MRI 示踪剂。一种新的合成方法可以获取13 C 标记的丙酮酸乙烯酯的关键前体,产率高达 67%(比以前的方法高 8 倍)。用仲氢进行自旋顺序转移后,获得了 12% 13 C 极化,这对应于 NMR 和 MRI 中的信号增益 16 500 (9.4 T)。