Using O=CO, N#Cc1ccc(CCC(=O)Nc2ccc(-c3ccc(Cl)cc3)cc2)cc1 to produce O=Cc1ccc(CCC(=O)Nc2ccc(-c3ccc(Cl)cc3)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.