Using C=C(C)COc1ccc(C(=O)c2ccc(OS(=O)(=O)C(F)(F)F)cc2)cc1 to produce CC1(C)Cc2cc(C(=O)c3ccc(OS(=O)(=O)C(F)(F)F)cc3)ccc2O1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.