Using CC(C)(C)OC(=O)C1(S(=O)(=O)N2CCC(=O)CC2)CCOCC1 to produce CC(C)(C)OC(=O)C1(S(=O)(=O)N2CCC(O)CC2)CCOCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.