Using COC(=O)C(Cc1ccc(OC)c(C(=O)NCc2ccc(C(F)(F)F)cc2)c1)S(C)(=O)=O to produce COc1ccc(CC(C(=O)O)S(C)(=O)=O)cc1C(=O)NCc1ccc(C(F)(F)F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.