Hydrazide derivatives of polyamides and their medical use as chelating agents

摘要

PCT No. PCT/EP92/01598 Sec. 371 Date Aug. 8, 1994 Sec. 102(e) Date Aug. 8, 1994 PCT Filed Jul. 16, 1992 PCT Pub. No. WO93/08045 PCT Pub. Date Feb. 4, 1993The invention relates to certain substituted derivatives of aminopolycarboxylic acids and metal chelates thereof. The compounds are particularly suitable for use as diagnostic agent. For example, the compounds can be used as radiodiagnostic agents, detoxification agents and contrast agents for diagnostic imaging processes. In particular, the high relaxivity paramagnetic metal chelates of substituted aminopolycarboxylic acids are especially suited for use as magnetic resonance imaging contrast agents.