Using CC(=O)c1ccc2c(c1)NC(=O)CO2, CCOC(=O)C(C)Br to produce CCOC(=O)C(C)N1C(=O)COc2ccc(C(C)=O)cc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.