Using CN(C)C=O, Clc1cc2nc(-c3ccc(Br)c4ccccc34)[nH]c2cc1Cl to produce O=Cc1ccc(-c2nc3cc(Cl)c(Cl)cc3[nH]2)c2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.