Using O=C([O-])C(=O)Cc1ccccc1, NNc1ccc(Cl)c(Cl)c1 to produce O=C(O)C(Cc1ccccc1)=NNc1ccc(Cl)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.