Using CCOC(=O)C(CC)Oc1ccc(Nc2ccc(C(F)(F)F)cc2N)cc1, O=[N+]([O-])[O-] to produce CCOC(=O)C(CC)Oc1ccc(-n2nnc3cc(C(F)(F)F)ccc32)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.