A method for preparing a radiotracer precursor SnADAM is revealed. The method overcomes shortcomings of conventional synthesis methods including lower yield rate and time-consuming. Moreover, Pd/C catalyst and hydrogen gas are used to catalyze reduction reaction for avoiding the generation of a large amount of intermediate products with similar structures. Thus there is no need to perform isolation and purification processes. The yield rate of the intermediate products is also increased so that its impact on the low yield rate of the final product SnADAM is minimized. A part of the reaction is significantly accelerated by using tris(dibenzylideneacetone)-dipalladium(0) (Pd2(dba)3) as a catalyst. Thus the production time of SnADAM is shortened.
揭示了一种制备放射示踪剂前体SnA
DAM的方法。该方法克服了传统合成方法的缺点,包括较低的产率和耗时。此外,使用Pd/C催化剂和
氢气来催化还原反应,以避免产生大量具有类似结构的中间产物。因此,无需进行分离和纯化过程。中间产物的产率也提高了,从而最大程度地减少了对最终产品SnA
DAM低产率的影响。部分反应通过使用三(二苯并亚乙酮)-二
钯(0)(Pd2(dba)3)作为催化剂得到显着加速。因此,SnA
DAM的生产时间缩短。