Using CC(=O)OC(C)=O, N[C@H](Cc1ccc([N+](=O)[O-])cc1)C(=O)O to produce CC(=O)N[C@H](Cc1ccc([N+](=O)[O-])cc1)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.