Rapid and efficient synthesis of [18F]fluoronicotinamides, [18F]fluoroisonicotinamides and [18F]fluorobenzamides as potential pet radiopharmaceuticals for melanoma imaging
作者:I. Al Jammaz、B. Al-Otaibi、S. Okarvi、J. Amartey
DOI:10.1002/jlcr.1869
日期:2011.5.30
In an attempt to simplify nucleophilic radiofluorination reactions to be amenable for automation, a series of [18F]fluoronicotinamides, [18F]fluoroisonicotinamides and [18F]fluorobenzamides were synthesized using one-step synthetic approach involving displacement reactions on trimethylammonium-nicotinamide, trimethylammonium-isonicotinamide and trimethylammonium-benzamide precursors. Based on starting [18F]-fluoride, radiochemical yields and purities were found to be greater than 90 and 97%, respectively, within 20 min synthesis time and, without high-performance liquid chromatography purification. This synthetic approach holds great promise as a rapid and simple method for the automated radiofluorination of [18F]fluoronicotinamides, [18F]fluoroisonicotinamides and [18F]fluorobenzamides with high radiochemical yield and very short preparation time. Copyright © 2011 John Wiley & Sons, Ltd.
为了简化亲核性放射氟化反应以适应自动化需求,使用一步合成法,通过在三甲基铵基烟酰胺、三甲基铵基异烟酰胺和三甲基铵基苯甲酰胺前体上的取代反应,合成了一系列的[18F]氟烟酰胺、[18F]氟异烟酰胺和[18F]氟苯甲酰胺。基于起始的[18F]氟化物,发现在20分钟的合成时间内,放射化学产率和纯度分别大于90%和97%,并且无需高效液相色谱纯化。这种合成方法非常有前景,作为一种快速且简单的方法,用于[18F]氟烟酰胺、[18F]氟异烟酰胺和[18F]氟苯甲酰胺的自动化放射氟化,具有高放射化学产率和非常短的制备时间。版权所有 © 2011 John Wiley & Sons, Ltd.