Using NS(=O)(=O)c1cc(C(O)c2ccc(OC(F)(F)F)cc2)ccc1Cl to produce NS(=O)(=O)c1cc(C(=O)c2ccc(OC(F)(F)F)cc2)ccc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.