Using CCCCCOc1ccc(Cn2c(C)nc(Cl)c2CCl)c(Cl)c1, N to produce CCCCCOc1ccc(Cn2c(C)nc(Cl)c2CN)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.