Using COc1ccccc1N1CCN(CCCCN)CC1, Clc1cc(Cl)c(Cl)nn1 to produce COc1ccccc1N1CCN(CCCCNc2cc(Cl)nnc2Cl)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.