The present technology provides 13C- and 15N-labeled probes for imaging one or more mammalian cells using magnetic resonance. Thus, 13C- and 15N-labeled arginine (compound of formula I), xanthine (compounds of formula II and formula III), urea (compounds of formula IV), and glutamine (compounds of formula V), stereoisomers, tautomers, and pharmaceutically acceptable salts thereof are provided. Further methods of making the labelled probes and methods of using the probes to detect arginase, xanthine oxidase, and glutaminase metabolites and activity are provided.
本技术提供 13C 和 15N 标记探针,用于利用磁共振对一个或多个哺乳动物细胞成像。因此,提供了 13C 和 15N 标记的精
氨酸(式 I 化合物)、
黄嘌呤(式 II 和式 III 化合物)、
脲(式 IV 化合物)和谷
氨酰胺(式 V 化合物)、立体异构体、同系物及其药学上可接受的盐。还提供了制作标记探针的方法和使用探针检测
精氨酸酶、
黄嘌呤氧化酶和谷
氨酰胺酶代谢物和活性的方法。