Using O=C(O)Cc1nn(-c2ccccc2)cc1-c1ccc([N+](=O)[O-])cc1 to produce Nc1ccc(-c2cn(-c3ccccc3)nc2CC(=O)O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.