Using CC(=O)O[C@H]1CCN(C(=O)OCc2ccc([N+](=O)[O-])cc2)C1 to produce O=C(OCc1ccc([N+](=O)[O-])cc1)N1CC[C@H](O)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.