Using CCOC(=O)C(C(c1ccc2c(c1)OCO2)c1ccc2c(c1)OCO2)[N+](=O)[O-] to produce CCOC(=O)C(N)C(c1ccc2c(c1)OCO2)c1ccc2c(c1)OCO2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.