Using CCOC(=O)C(F)C(O)c1cc2cc(S(C)(=O)=O)cnc2n1Cc1ccc(F)cc1 to produce CCOC(=O)C(F)C(=O)c1cc2cc(S(C)(=O)=O)cnc2n1Cc1ccc(F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.