Using C=CCON([C@@H]1C=C(C)[C@@H](C(N)=O)NC1)S(=O)(=O)c1ccccc1[N+](=O)[O-] to produce C=CCON[C@@H]1C=C(C)[C@@H](C(N)=O)NC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.