Bromo(tricarbonyl) (15-{[2-(methylthio-S)ethylthio-S} pentadecanoic acid)rhenium(l)

The title compound, C₂₁H₃₆BrO₅ReS₂, was synthesized and characterized as non-radioactive surrogate of a novel Tc-containing fatty acid derivative prepared according to the tricarbonyl/dithioether design with the objective to develop new Tc-based radio-pharmaceuticals für the non-invasive diagnosis of myocardial metabolism. The Re chelate contains the metal core in the oxidation state +1 and is attached to the terminal position of a fatty acid. The complex formation was accomplished by ligand exchange reaction using [NBu₄]₂[Re(CO)₃Br₃] as starting material