The invention relates to a process for preparation of radiopharmaceutical precursors, and in particular protected amino acid derivatives which are used as precursors for production of radiolabelled amino acids for use in in vivo imaging procedures such as positron emission tomography (PET). Particularly, the invention relates to a process for preparation of a precursor useful in the preparation of the [
18
F]-1-amino-3-fluorocyclobutanecarboxylic acid ([
18
F] FACBC) PET tracer.
本发明涉及一种制备放射性药物前体的方法,特别是保护
氨基酸衍
生物,这些衍
生物用作放射性标记
氨基酸的前体,用于体内成像程序,如正电子发射断层扫描(PET)。特别地,本发明涉及一种制备前体的方法,该前体可用于制备[18F]-1-
氨基-
3-氟环丁烷羧酸([18F]FACBC)PET示踪剂。