Using CCOC(=O)C(=CNc1ncnc2ccc([N+](=O)[O-])cc12)C(=O)OCC to produce CCOC(=O)C(=CNc1ncnc2ccc(N)cc12)C(=O)OCC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.