Drug – bio-affecting and body treating compositions – In vivo diagnosis or in vivo testing – Magnetic imaging agent
Patent
1995-06-06
1999-06-22
Hollinden, PH.D., Gary E.
Drug, bio-affecting and body treating compositions
In vivo diagnosis or in vivo testing
Magnetic imaging agent
514492, 514502, 514836, 534 16, 556 50, 556 63, 556107, 556117, 556134, 556148, A61B 5055, C07F 500
Patent
active
059140976
ABSTRACT:
The present invention relates to the preparation of amino-acyl-type and catecholamine-type compounds having multiple carboxylic acid functional groups. Paramagnetic metal (II) or (III) ion chelate complexes are formed using these compounds for use as intravenous contrast agents to produce enhanced contrast magnetic resonance images of the heart, liver, biliary tree or upper small intestine. The mono- and di-amino acids, their esters and amides, and catecholamine-like derivatives, of EDTA, DTPA, and the like are prepared. The paramagnetic metal (II) or (III) ion complexes are formed and produce T1-related contrast effects in MR images. The compounds and complexes also appear to have low toxicities and to be relatively rapidly and completely cleared from the tissue of a living mammal, e.g. a human being.
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Hartley Michael G.
Hollinden, PH.D. Gary E.
Regents of the University of California
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