Using COc1cc(N)c(Cl)cc1C(=O)NCC1CCN(CCCN2C(=O)c3ccccc3C2=O)CC1 to produce COc1cc(N)c(Cl)cc1C(=O)NCC1CCN(CCCN)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.