Using CC(=O)OC(C)=O, CC(C)(CO)c1cc(NC(=O)C(C)(C)S(=O)(=O)C2CCOCC2)on1 to produce CC(=O)OCC(C)(C)c1cc(NC(=O)C(C)(C)S(=O)(=O)C2CCOCC2)on1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.