Using O=C(O)C1=Cc2c(ccc(Cl)c2Oc2ccccc2)OC1C(F)(F)F to produce O=C([O-])C1=Cc2c(ccc(Cl)c2Oc2ccccc2)OC1C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.