Using CCOC(=O)c1cc(-c2ccc(-c3cccc(S(C)(=O)=O)c3)s2)n(-c2ccccc2C(F)(F)F)n1 to produce CS(=O)(=O)c1cccc(-c2ccc(-c3cc(C(=O)O)nn3-c3ccccc3C(F)(F)F)s2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.