Using Cc1ccc(S(=O)(=O)Cl)cc1, COC(=O)[C@H]1C[C@@H](O)CN1C(=O)OC(C)(C)C to produce COC(=O)[C@H]1C[C@@H](OS(=O)(=O)c2ccc(C)cc2)CN1C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.