| abstract |
The present invention provides a composition comprising a compound represented by the following formula (I). Since the compound combines high binding specificity to amyloid β protein, high blood brain permeability, and rapid disappearance from areas other than senile plaques in the brain, the composition is useful for diagnosing amyloid-related diseases such as Alzheimer's disease.n n n <Formula I>n n n n n n n n [Wherein, R 1 represents a 5-iodothiophen-2-yl group and the like, and R 2 represents a 4-dimethylaminophenyl group or the like]n n n n Amyloid β protein, Alzheimer's disease, Calgon derivatives |