Using CCOC(=O)C1C(c2cccc([N+](=O)[O-])c2)C2=C(CCCC2=O)NC1(O)C(F)(F)F to produce O=C1CCCC2=C1C(c1cccc([N+](=O)[O-])c1)C(C(=O)O)C(O)(C(F)(F)F)N2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.