Using O=C([O-])Cc1cc(OC(=O)c2ccccc2)no1, O=C(Cl)C(=O)Cl to produce O=C(Cl)Cc1cc(OC(=O)c2ccccc2)no1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.