Using COc1ccc(Nc2nc(Cl)nc(Cl)n2)cc1Cl, NCC1CCCCC1 to produce COc1ccc(Nc2nc(Cl)nc(NCC3CCCCC3)n2)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.