Synthesis of selectively 13C-labelled benzoic acid for nuclear magnetic resonance spectroscopic measurement of glycine conjugation activity
作者:Kazuki Akira、Hiroshi Hasegawa、Shigeo Baba
DOI:10.1002/jlcr.2580360905
日期:1995.9
The synthesis of [4-13C]benzoic acid (BA) labelled in a single protonated carbon, for use as a probe to measure glycine conjugation activity by nuclear magnetic resonance (NMR) spectroscopy, has been reported. The labelled compound was prepared by a seven-step synthetic scheme on a relatively small scale using [2-13C]acetone as the source of label in overall yield of 16 %. The usefulness of [4-13C]BA was demonstrated by the NMR spectroscopic monitoring of urinary excretion of [4-13C]hippuric acid in the rat administered with the labelled BA.
据报道,合成了在单个质子化碳上标记的[4-13C]苯甲酸(BA),用作通过核磁共振(NMR)光谱测量甘氨酸缀合活性的探针。使用[2-13C]丙酮作为标记源,通过相对小规模的七步合成方案制备了标记化合物,总产率为16%。 [4-13C]BA 的有用性通过 NMR 光谱监测给予标记 BA 的大鼠中 [4-13C]马尿酸的尿液排泄来证明。