Novel substituted DTPA derivatives, their metal complexes, pharmaceutical agents containing these complexes, their use in diagnostics, as well as methods for the preparation of the complexes and means

The invention pertains to diethylenetriaminepentaacetic acid derivatives, their complexes and complex salts, containing an element of atomic number 20-32, 39-51 or 57-83, pharmaceuticals containing these compounds, their use as contrast medium and antidote, and methods for preparing them.