A glucosamine–dipicolylamine conjugate of 99m Tc( i ) and 186 Re( i ) for use in imaging and therapy

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The synthesis and metal complexation of a glucosamine-appended 2,2'-dipicolylamine ligand to the tricarbonyls of 99mTc and 186Re is described; the ligand was found to bind in a tridentate fashion with the glucosamine function remaining pendant, and the 99mTc complex was found to exhibit exceptional stability towards in vitro ligand exchange experiments.