Using N=C(N)c1ccc([N+](=O)[O-])cc1, CCOC(=O)C(OC)C(=O)OC to produce COc1c(O)nc(-c2ccc([N+](=O)[O-])cc2)[nH]c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.