This invention relates to novel highly functionalized phosphine ligands as ancillary ligands in radiopharmaceuticals. Also, this invention provides radiopharmaceuticals comprised of highly functionalized phosphine ligated .sup.99m Tc labeled HYNIC-conjugated biomolecules that selectively localize at sites of disease and thus allow an image to be obtained of the loci using gamma scintigraphy. The invention also provides methods of use of the radiopharmaceuticals as imaging agents for the diagnosis of cardiovascular disorders such as thromboembolic disease or atherosclerosis, infectious disease and cancer.

 
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