Using Cc1nc(Cl)c2nc(-c3ccccc3)cc-2[nH]1, CCOCCCN to produce CCOCCCNc1nc(C)[nH]c2cc(-c3ccccc3)nc1-2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.