Using O=C(O)Cc1ccccc1, Nc1cc(-c2ccc(Cl)cc2)[nH]n1 to produce O=C(Cc1ccccc1)Nc1cc(-c2ccc(Cl)cc2)[nH]n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.