Using O=C(O)CS(=O)(=O)Nc1ccc(F)cc1C(F)(F)F, Nc1ccc(S(=O)(=O)O)cc1 to produce O=C(CS(=O)(=O)Nc1ccc(F)cc1C(F)(F)F)Nc1ccc(S(=O)(=O)O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.