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