Using Nc1ccc(N2CCOCC2)nc1, O=c1[nH]cnc2cc(Cl)nc(Cl)c12 to produce O=c1[nH]cnc2cc(Cl)nc(Nc3ccc(N4CCOCC4)nc3)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.