Using [O-][I+3]([O-])([O-])[O-], CCCCCC(O)CCN1C(=O)CSC1CCCCCCC(=O)O to produce CCCCCC(O)CCN1C(=O)CS(=O)C1CCCCCCC(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.