Using BrCc1ccccc1, CCN(Cc1cc(C(=O)O)ccc1Br)C(=O)OCc1ccccc1 to produce CCN(Cc1cc(C(=O)OCc2ccccc2)ccc1Br)C(=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.