Using CCOC(=O)c1cnc(-c2ccccc2[N+](=O)[O-])[nH]c1=O to produce CCOC(=O)c1cnc(-c2ccccc2N)[nH]c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.