Using C[C@]1(C(=O)O)CCCN1C(=O)c1c(N)cccc1[N+](=O)[O-] to produce C[C@]1(C(=O)O)CCCN1C(=O)c1c(N)cccc1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.