Using CC(C)(C)OC(=O)CC(=O)OC(C)(C)C, COCc1ccc(OS(=O)(=O)C(F)(F)F)c([N+](=O)[O-])c1 to produce COCc1ccc(C(C(=O)OC(C)(C)C)C(=O)OC(C)(C)C)c([N+](=O)[O-])c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.