Using CCOC(=O)CN=C=O, N=C(NCCC[C@H](N)C(=O)O)N[N+](=O)[O-] to produce N=C(NCCC[C@@H]1NC(=O)N(CC(=O)O)C1=O)N[N+](=O)[O-], please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.