Using C1OCOCO1, NS(=O)(=O)Cc1ccc([N+](=O)[O-])cc1 to produce O=[N+]([O-])c1ccc2c(c1)CNS(=O)(=O)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.