| abstract |
The invention concerns novel pseudopolyrotaxanes which contain metal complexes or iodine-containing benzene derivatives and are valuable compounds for diagnostic purposes. The pseudopolyrotaxane complexes have the general formula (I), in which n designates the numbers 6, 7 or 8, m designates the numbers 2 to 50; X is a direct bond or the group -O-CO-CH(CH3)-; R1 and Y have the meanings given in the description; and R3-Y-R4 are polyalkylene glycols. |