Fast indirect fluorine-18 labeling of protein/peptide using the useful 6-fluoronicotinic acid-2,3,5,6-tetrafluorophenyl prosthetic group: A method comparable to direct fluorination
作者:Falguni Basuli、Xiang Zhang、Carolyn C. Woodroofe、Elaine M. Jagoda、Peter L. Choyke、Rolf E. Swenson
DOI:10.1002/jlcr.3487
日期:2017.3
conjugation efficiency of the labeled ester prepared by this method, we have performed conjugation reactions with a peptide, a protein, and a small molecule. Prostate-specific membrane antigen targeting small molecule [18 F]DCFPyL, αvβ3 integrin receptors targeting peptide [18 F]c(RGDfK) and [18 F]albumin were prepared in good radiochemical yields. The conjugation reactions were completed at 40°C to 50°C
生物分子的氟 18 标记主要是通过使用假体组的间接标记方法进行的。Fluorine-18 标记的 6-fluoronicotinic acid-2,3,5,6-四氟苯基酯是一种有用的辅基,可用于放射性标记蛋白质。最近,我们报道了该假肢组的改进制备。为了测试用这种方法制备的标记酯的结合效率,我们用肽、蛋白质和小分子进行了结合反应。前列腺特异性膜抗原靶向小分子 [18 F]DCFPyL、αvβ3 整联蛋白受体靶向肽 [18 F]c(RGDfK) 和 [18 F] 白蛋白以良好的放射化学产率制备。偶联反应在 40°C 至 50°C 下在 10 分钟内完成。在 30 到 45 分钟内,总的放射化学产率为 25% 到 43%。