Using COc1cc(-c2ccccc2Cl)c2c(c1)N(c1ccccc1Cl)C(=O)CC2 to produce COc1cc(-c2ccccc2Cl)c2ccc(=O)n(-c3ccccc3Cl)c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.