Synthesis of tritium-labelled 5-chloro-2′,3′-dideoxy-3′-fluorouridine (935u83) - a selective anti-HIV agent
作者:John A. Hill、Donald D. Bankston
DOI:10.1002/jlcr.2580360802
日期:1995.8
[5′-3H]-5-Chloro-2′,3′-diodeoxy-3′-fluorouridine (1; R = [3H]) was prepared at a specific activity of 10.2 Ci/mmol suitable for development of a radioimmunoassay procedure. The synthetic sequence employed controlled oxidation of unlabelled 1 to the 5′-aldehyde (2), isolation as the imidazolidine adduct (3), regeneration of the free aldehyde, reduction with [3H]NaBH4, and purification by preparative TLC. The radiochemical purity was 98.0%.
[5′-3H]-5-氯-2′,3′-脱氧-3′-氟尿苷(1;R = [3H])的特定活性为10.2 Ci/mmol,适合用于放射免疫测定程序的开发。合成序列采用了对未标记的1进行控制氧化,生成5′-醛(2),以咪唑并啶 adduct(3)形式分离,再生游离醛,使用[3H]NaBH4还原,并通过制备TLC进行纯化。放射化学纯度为98.0%。