| abstract |
The invention relates to compounds of general formula I. wherein A may optionally contain a functional and / or activated group C for coupling to selectively enriching compounds or a selectively enriching compound coupled via group C. B and B ′ are functional groups for the coordinative bonding of groups bearing metal ions. The new compounds are used to complex radioactive metal ions, especially rhenium and technetium isotopes, and are used in medical diagnostics and therapy. |