A compound effective as a probe targeting amyloid for image diagnosis and a reagent comprising the compound for detecting amyloid deposited on a biological tissue are provided. Provided are a compound represented by the following formula (1):
wherein R
1
is a group selected from the group consisting of a halogen substituent, alkyl substituent with 1 to 4 carbon atoms, alkoxy substituent having alkyl chain with 1 to 4 carbon atoms and hydroxyl group, R
2
is a group selected from the group consisting of a cyano substituent, alkyl substituent with 1 to 4 carbon atoms and halogen substituent, R
3
is a group selected from the group consisting of a hydroxyl group, halogen substituent and substituent represented by the following formula:
(wherein R
4
is a hydrogen, halogen substituent or hydroxyl group, and m is an integer of 1 to 4), provided that at least one of R
1
, R
2
, R
3
and R
4
represents a radioactive halogen, and a reagent comprising the same.
提供了一种作为靶向淀粉样蛋白的探针的复合物,用于图像诊断,以及包含该复合物的试剂,用于检测沉积在
生物组织上的淀粉样蛋白。提供了一种由以下公式(1)表示的复合物:其中,R1是从卤素取代基,具有1到4个碳原子的烷基取代基,具有1到4个碳原子的烷基链的烷氧基取代基和羟基的群组中选择的群组,R2是从
氰基取代基,具有1到4个碳原子的烷基取代基和卤素取代基的群组中选择的群组,R3是从羟基,卤素取代基和由以下公式表示的取代基中选择的取代基:(其中,R4是氢,卤素取代基或羟基,m为1到4的整数),前提是R1、R2、R3和R4中至少有一个代表放射性卤素,并且包含相同的试剂。