Using CCOC(=O)C[C@H](C[N+](=O)[O-])[C@@H]1CCCN1C(=O)OC(C)(C)C to produce CC(C)(C)OC(=O)N1CCC[C@H]1[C@H](CCO)C[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.