Using ClCc1ccc(NCc2ccc(Cl)c(Cl)c2)nc1, O=c1ccc2cc(O)ccc2[nH]1 to produce O=c1ccc2cc(OCc3ccc(NCc4ccc(Cl)c(Cl)c4)nc3)ccc2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.