Using CS(=O)(=O)c1ccc(C(=O)c2cc(CC(=O)O)cc3ccc(F)cc23)c(Cl)c1 to produce CS(=O)(=O)c1ccc(C(O)c2cc(CC(=O)O)cc3ccc(F)cc23)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.