The present invention relates to a radiotracer precursor for imaging of hypoxic tissues, a radiotracer and a method for preparing the same. The radiotracer precursor, BANI, includes a nitroimidazole functional group with a feature of retention in hypoxic tissues and a bifunctional ligand able to complex with radioisotopes. Thus BANI can be used to produce radiotracers retained in hypoxic tissues and the radiotracers are applied to medical imaging of malignant tumor with hypoxic layer.
本发明涉及一种用于成像缺氧组织的放射示踪剂前体、一种放射示踪剂以及其制备方法。该放射示踪剂前体BANI包括一种硝基
咪唑功能基团,具有在缺氧组织中保留的特性,以及能够与放射性同位素形成络合物的双功能
配体。因此,BANI可用于制备在缺氧组织中保留的放射示踪剂,这些放射示踪剂可应用于恶性肿瘤具有缺氧层的医学成像。