Using CCc1cc(Oc2ccc([N+](=O)[O-])cc2C(F)(F)F)n[nH]1, CN=C=O to produce CCc1cc(Oc2ccc([N+](=O)[O-])cc2C(F)(F)F)nn1C(=O)NC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.