1: [131I]-Uracil With ammonium sulfate; 1,1,1,3,3,3-hexamethyl-disilazane 16 h; Heating; 2: 1-bromomethyl-4-nitro-benzene in acetonitrile 24 h; Heating;

tin(ll) chloride in ethanol T=70°C; 2 h;