Using CCOC(=O)C1CCN(C(=O)c2ccccc2)CC1, BrCc1ccccc1 to produce CCOC(=O)C1(Cc2ccccc2)CCN(C(=O)c2ccccc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.