Synthesis of 3-(dichloroacetyl)-5-(2-furanyl)-2,2-dimethyloxazolidine ( common name : furilazole) labeled with carbon-14 and carbon-13 are described. Two routes for the synthesis of labeled trimethylsilyl cyanide, a precursor to furilazole, are described. One method can be canied out on milligram scale and is suitable for a high specific activity preparation while the second method is suitable for