Using [O-][I+3]([O-])([O-])[O-], CNC(=NCCSCc1[nH]cnc1C)NC#N to produce CNC(=NCCS(=O)Cc1[nH]cnc1C)NC#N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.