Using CCOC(=O)Cn1ncc2c1CCC[C@H]2NS(=O)(=O)c1cc(Br)cc(C(F)(F)F)c1 to produce O=C(O)Cn1ncc2c1CCC[C@H]2NS(=O)(=O)c1cc(Br)cc(C(F)(F)F)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.