There is provided a composition comprising a compound represented by general formula (I), wherein R1 represents a 5-iodothiophen-2-yl group or the like, and R2 represents a 4-dimethylaminophenyl group or the like. This composition is useful for diagnosis of an amyloid-related disease such as Alzheimer's disease because the compound has high binding specificity to amyloid β protein, high permeability through the blood-brain barrier, and a property of being rapidly eliminated from sites other than senile plaques in the brain.
提供了一种化合物组合物,其由一般式(I)表示的化合物组成,其中R1代表5-
碘噻吩-2-基基团或类似物,R2代表4-
二甲氨基苯基团或类似物。该组合物对于诊断与淀粉样蛋白相关的疾病,如阿尔茨海默病,具有高结合特异性,高透过血脑屏障的渗透性,以及在大脑老年斑以外部位迅速被排除的特性。