Using CC(C)(C)OC(=O)N[C@H]1CC[C@@H](OS(C)(=O)=O)C1, [I-] to produce CC(C)(C)OC(=O)N[C@H]1CC[C@H](I)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.