Using O=[O+][O-], C=CC(C)C1(NC(=O)OCc2ccccc2)CCCN(C(=O)OC(C)(C)C)C1 to produce CC(CO)C1(NC(=O)OCc2ccccc2)CCCN(C(=O)OC(C)(C)C)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.