Using COc1ccc(S(=O)(=O)N2c3ccc(Br)cc3-c3ccccc3C2c2ccccc2)cc1 to produce O=S(=O)(c1ccc(O)cc1)N1c2ccc(Br)cc2-c2ccccc2C1c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.