An object of the present invention is to provide a halogenated biotin-modified dimer, which is capable of imaging diagnosis or treatment by labeling with a halogen, a biotin-modified dimer having a high affinity for a mutant streptavidin with a low affinity for natural biotin. The present invention provides a compound represented by the following formula (1) or a salt thereof:
wherein the meaning of each symbol is the same as that described in the specification.
本发明的目的是提供一种卤代
生物素修饰二聚体,该二聚体能够通过标记卤素进行成像诊断或治疗,并具有高亲和力的突变
链霉亲和素和低亲和力的天然
生物素。本发明提供了以下式(1)所表示的化合物或其盐:其中每个符号的含义与说明书中描述的相同。