Using C=C1N(CC(=O)O)C(=O)C(=O)N1Cc1cccc([N+](=O)[O-])c1, NC(N)=O to produce O=C(O)CN1C(=O)CN(Cc2ccccc2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.