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SYNTHESIS OF SPECIFICALLY IODINE-131-AND CARBON-14-LABELED THYROXINE

Journal Article · · Journal of Organic Chemistry (U.S.)
OSTI ID:4771638

A simple synthesis of various forms of radioactive L-thyroxine, carrying the label (I/sup 131/ or C/sup 14/) either in the phenolic ring or in the nonphenolic ring and in the side chain, is described, It is based on the coupling of 4hydroxy-3,5-diiodophenylpyruvic acid and 3,5-diiodotyrosine. Labeled 4- hydroxy-3,5-diiodophenylpyruvic acid was prepared by iodination of p- hydroxybenzaidehyde foilowed by condensation with acetylglycine and hydrolysis of the azlactone formed, or by enzymic oxidative deamination of diiodotyrosine. (auth)

Research Organization:
National Inst. of Arthritis and Metabolic Diseases, Bethsda, Md.
NSA Number:
NSA-17-001540
OSTI ID:
4771638
Journal Information:
Journal of Organic Chemistry (U.S.), Journal Name: Journal of Organic Chemistry (U.S.) Vol. Vol: 27; ISSN JOCEA
Country of Publication:
Country unknown/Code not available
Language:
English

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