Using Brc1ccc(C2CN(Cc3ccccc3)CCO2)cc1, O=C=Nc1c(Cl)cccc1Cl to produce O=C(Nc1c(Cl)cccc1Cl)c1ccc(C2CN(Cc3ccccc3)CCO2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.