Using CCOC(=O)CN1CCNCC1, BrCc1ccc(C2(c3ccccc3)OCCO2)cc1 to produce CCOC(=O)CN1CCN(Cc2ccc(C3(c4ccccc4)OCCO3)cc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.