Using O=[Mn](=O)(=O)[O-], COc1ccc(C(=O)C(C)(C)C)cc1CO to produce COc1ccc(C(=O)C(C)(C)C)cc1C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.