Using CCOC(=O)c1cccc(N2CCNCC2)c1, BrCCC(c1ccccc1)c1ccccc1 to produce CCOC(=O)c1cccc(N2CCN(CCC(c3ccccc3)c3ccccc3)CC2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.