Radiopharmaceutical complexes of N-(tri-substituted alkyl)-iminodiacetic acids
AssigneeG. D. Searle & Co.
InventorsPatricia Frank, Stephen Kraychy, Ernest F. Le Von
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Abstract
Complexes of radiolabelled metals with N-(tri-substituted alkyl)-iminodiacetic acids or salts thereof having utility as radiopharmaceutical agents for monitoring the activity of an organ, their preparation and a method employing such complexes for externally monitoring the activity of an organ are disclosed.
Claims9
A chelate of technetium-99 m, cobalt-57, gallium-67, gallium-68, indium-111 or indium-113 m and a compound having the formula ##STR4## wherein X and Y can be the same or different and each represents hydrogen or halogen, Z is carbamoyl or cyano, and n is 2, 3 or 4, or a pharmaceutically acceptable metal salt thereof.
Dependencies are inferred from the claim text.