Using CC(c1ccc(Cl)cc1Cl)C(O)c1ccc2c(cnn2-c2ccccc2)c1 to produce CC(C(=O)c1ccc2c(cnn2-c2ccccc2)c1)c1ccc(Cl)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.