Using CNC(=O)CC[C@@H]1C[C@@H](O)CN1C(=O)OCc1ccc([N+](=O)[O-])cc1 to produce CNC(=O)CC[C@@H]1C[C@@H](O)CN1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.