Bifunctional Chelate for Radiolabeling of Biotin With99Tcm(CO)3(H2O)3+
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Graphical Abstract
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Abstract
A novel tridentate ligand for Re /99Tcm(CO)3(H2O)3+ core, coupled with biotin, is designed and synthesized. Radiolabeling of PLB ligand (PLB =N-α-(2-picolyl)-N-ε-biotinyl-L-lysine methyl ester) with 99Tcm(CO)3(H2O)3+ precursor is carefully investigated, and more than 95% of yield is achieved under optimized condition.
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