Method for the reduction of oxygenated compounds of rhenium or technetium

摘要

PCT No. PCT/EP97/05448 Sec. 371 Date Jun. 4, 1999 Sec. 102(e) Date Jun. 4, 1999 PCT Filed Oct. 3, 1997 PCT Pub. No. WO98/14219 PCT Pub. Date Apr. 9, 1998The present invention relates in general to a method for the reduction of oxygenated compounds of rhenium and technetium and in particular to the reduction of perrhenate or pertechnetate ions. More particularly, the invention relates to reactions for the reduction of the said oxygenated compounds which are carried out in the course of the preparation of complexes of the radionuclides 186Re, 188Re and 99mTc; in these reactions, the radionuclide perrhenate or pertechnetate ion is reduced in the presence of a reducing agent and a ligand which can form a complex with the radionuclide in its reduced oxidation state.