Using CCOC(=O)Cn1ncc2c1CCC[C@H]2NS(=O)(=O)c1cnc(Cl)c(Br)c1, O=C([O-])[O-] to produce CCOC(=O)Cn1ncc2c1CCC[C@H]2N(C)S(=O)(=O)c1cnc(Cl)c(Br)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.