Using COc1cc(C(OC)OC)cc([N+](=O)[O-])c1OS(=O)(=O)C(F)(F)F to produce COc1cc(C(OC)OC)cc([N+](=O)[O-])c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.