Abstract: This invention provides novel radiopharmaceuticals that are radiolabeled cyclic compounds containing carbocyclic or heterocyclic ring systems which act as antagonists of the platelet glycoprotein IIb/IIIa complex; to methods of using said radiopharmaceuticals as imaging agents for the diagnosis of arterial and venous thrombi; to novel reagents for the preparation of said radiopharmaceuticals; and to kits comprising said reagents.

Abstract: This invention relates to novel radiopharmaceuticals which are useful as imaging agents for the diagnosis of cardiovascular disorders, infectious disease and cancer, and to kits useful for their preparation. The radiopharmaceuticals of this invention are comprised of a transition metal radionuclide, a transition metal chelator, a biologically active group connected to said chelator, a first ancillary ligand, a second ancillary ligand capable of stabilizing the radiopharmaceutical, optionally having a linking group between said chelator and said biologically active group. Preferred radiopharmaceuticals of this invention have the formula:?(Q).sub.d' L.sub.n --C.sub.h' !.sub.x --M.sub.t (A.sub.L1).sub.y (A.sub.L2).sub.z,wherein the shown variables are as defined herein.

Abstract: This invention provides processes for the synthesis of platelet glycoprotein IIb/IIIa inhibitors and intermediate compounds useful in said processes.