Using CC(=O)CN1CCc2c(c(=O)oc3cc(C)c([N+](=O)[O-])cc23)C1 to produce CC(=O)CN1CCc2c(c(=O)oc3cc(C)c(N)cc23)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.