Using BrCc1ccc2ccc3cccc4ccc1c2c34, CCOC(=O)C(NC(C)=O)C(=O)OCC to produce CCOC(=O)C(Cc1ccc2ccc3cccc4ccc1c2c34)(NC(C)=O)C(=O)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.