Perfluorinated markers for hypoxia detection: synthesis of sulfur-containing precursors and [18F]-labelling
作者:Arnaud Cheguillaume、Jacques Gillart、Daniel Labar、Vincent Grégoire、Jacqueline Marchand-Brynaert
DOI:10.1016/j.bmc.2004.11.010
日期:2005.2
sequence starting from N-phthalimido-beta-alanine allows the preparation of a new trithioorthoester as valuable precursor of the synthesis of [18F]-3,3,3-trifluoropropylamine, a convenient radiolabelled intermediate for [18F]-EF3. A five-step sequence for the preparation of methyl 4-phthalimido-2,2-difluoropropanedithioate from ethyl 2,2-difluoropropanoate, via the key conversion step of alpha,alpha'-difluorothioamidate
描述了用于氧化氟脱硫反应的[18F]标记的两种新型硫化前体的合成途径。从N-邻苯二甲酰亚胺基-β-丙氨酸开始的三步序列允许制备新的三硫原酸酯,作为[18F] -3,3,3-三氟丙胺合成的有价值的前体,[18F] -3,3,3-三氟丙胺是方便的放射性标记的[18F] -EF3中间体。通过2,2-二氟丙酸乙酯通过关键的将α,α'-二氟硫代酰胺酸酯转化为相应的α,α'-二氟二硫代酸酯和还介绍了其在[18F]放射化学中用作氧化氟代脱硫前体的最初结果。