The invention relates to compounds having the general formula I ##STR1## where A if required can contain a functional and/or activated group C for coupling to selectively concentrating compounds or can contain a selectively concentrating compound coupled via the group C. B and B' are functional groups for coordinate bonding of groups carrying metal ions. The novel compounds are for forming complexes with radioactive metal ions, more particularly rhenium and technetium isotopes, and are used in medical diagnosis and therapy.
                            该发明涉及具有一般式I的化合物 ##STR1## 其中如有需要,A可以包含一个功能性和/或活化的基团C,用于与选择性浓集化合物偶联,或者可以包含通过基团C偶联的选择性浓集化合物。B和B'是用于与携带
金属离子的基团进行配位键合的功能基团。这些新型化合物用于与放射性
金属离子形成络合物,尤其是
铼和
锝同位素,并用于医学诊断和治疗。