Using CI, O=C(N[C@@H]1CCCN(c2c([N+](=O)[O-])cnn2CC(F)F)CC1)C(F)(F)F to produce CN(C(=O)C(F)(F)F)[C@@H]1CCCN(c2c([N+](=O)[O-])cnn2CC(F)F)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.