Using O=C(Nc1ccc(Sc2ccc(O)cc2)c([N+](=O)[O-])c1)c1ccccc1 to produce Nc1cc(NC(=O)c2ccccc2)ccc1Sc1ccc(O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.