Using O=C(Cl)C(=O)Cl, COc1cc2c(O)c(C#N)cnc2cc1OCc1ccccc1 to produce COc1cc2c(Cl)c(C#N)cnc2cc1OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.