Using CCOC(C)=O, N#Cc1cc(-c2ccc(Cl)cc2)c(-c2ccc(Cl)cc2Cl)[nH]c1=O to produce O=Cc1cc(-c2ccc(Cl)cc2)c(-c2ccccc2Cl)[nH]c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.