申请人:NIHON MEDI-PHYSICS CO., LTD.
公开号:EP2098523A1
公开(公告)日:2009-09-09
It is intended to provide a compound effective as an image diagnosis probe targeting amyloid and a diagnostic agent for Alzheimer's disease comprising the compound. Provided is a compound represented by the following formula or a salt thereof:
wherein A1, A2, A3 and A4 independently represents a carbon or nitrogen,
R1 is a group selected from the group consisting of hydrogen, hydroxyl group, carboxyl group, sulfuric acid group, amino group, nitro group, cyano group, non-radioactive halogen substituents, alkyl substituents with 1-4 carbon atoms and alkoxy substituents with 1-4 carbon atoms, and
R3 is a radioactive halogen substituent,
provided that at least one of A1 A2, A3 and A4 represents a carbon, and R1 binds to a carbon represented by A1, A2, A3 or A4, as well as a diagnostic agent for Alzheimer's disease comprising the compound represented by the above formula or a salt thereof.
本发明旨在提供一种作为针对淀粉样蛋白的图像诊断探针有效的化合物,以及一种包含该化合物的阿尔茨海默病诊断剂。本发明提供了由下式代表的化合物或其盐:
其中 A1、A2、A3 和 A4 独立地代表碳或氮、
R1 是选自由氢、羟基、羧基、硫酸基、氨基、硝基、氰基、非放射性卤素取代基、1-4 个碳原子的烷基取代基和 1-4 个碳原子的烷氧基取代基组成的基团,以及
R3 是放射性卤素取代基、
条件是 A1 A2、A3 和 A4 中至少有一个代表碳,且 R1 与 A1、A2、A3 或 A4 所代表的碳结合,以及由上式所代表的化合物或其盐组成的阿尔茨海默病诊断剂。