Using O=C(c1ccc([N+](=O)[O-])cc1)N1CCC(F)(F)C(=O)c2ccccc21 to produce Nc1ccc(C(=O)N2CCC(F)(F)C(=O)c3ccccc32)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.