Using CC(=O)OCCNc1ccc2c(=O)n(CCOC(C)=O)ccc2c1[N+](=O)[O-] to produce CC(=O)OCCNc1ccc2c(=O)n(CCOC(C)=O)ccc2c1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.