Using COC(=O)[C@H](Cc1ccc(O)cc1)NC(=O)OC(C)(C)C, O=S(=O)(OS(=O)(=O)C(F)(F)F)C(F)(F)F to produce COC(=O)[C@H](Cc1ccc(OS(=O)(=O)C(F)(F)F)cc1)NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.