Using ClCc1ccccc1CCl, Oc1ccc2oc(-c3ccc4ccc(Cl)cc4n3)cc2c1 to produce ClCc1ccccc1COc1ccc2oc(-c3ccc4ccc(Cl)cc4n3)cc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.