Using COc1ccc(S(=O)(=O)N[C@@H](C(=O)O)C(C)C)cc1, BrCc1ccccc1 to produce COc1ccc(S(=O)(=O)N[C@@H](C(=O)OCc2ccccc2)C(C)C)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.