Using CCOC(=O)C(=O)c1ccc(O)cc1, O=C(CBr)N1CCc2ccccc2C1 to produce CCOC(=O)C(=O)c1ccc(OCC(=O)N2CCc3ccccc3C2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.