Using COC(=O)CN1C(=O)c2cc([O-])c([N+](=O)[O-])cc2C1=O, COS(=O)(=O)OC to produce COC(=O)CN1C(=O)c2cc(OC)c([N+](=O)[O-])cc2C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.