MACROCYCLIC CHELANTS, THEIR CHELATES AND USES THEREOF IN THE DIAGNOSTIC FIELD.

摘要

Compounds able to chelate paramagnetic bi- or trivalent metal ions, their chelates with said metal ions and their use as contrast agents in magnetic resonance imaging (MRI), of general formula (I) wherein A is a group of formula (a), wherein X is a -O-R group or is a -NR2R3 group, B1, B2, B3 can be same or different and have the same meaning as A, or are a -CHYCOX group, wherein Y is a -CH2OR1 group.