Using COc1ccc2cc3c(Cl)c(C#N)cnc3cc2c1, Nc1ccc(Cl)cc1Cl to produce COc1ccc2cc3c(Nc4ccc(Cl)cc4Cl)c(C#N)cnc3cc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.