Using Clc1cc2c(Cl)ncnc2cn1, Nc1ccc(Oc2ccccc2)cc1 to produce Clc1cc2c(Nc3ccc(Oc4ccccc4)cc3)ncnc2cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.