Using NNC(=O)C[n+]1ccccc1, O=C(CCn1cnc2c(=O)[nH]cnc21)Oc1ccc([N+](=O)[O-])cc1 to produce O=C(CCn1cnc2c(=O)[nH]cnc21)NNC(=O)C[n+]1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.