Using O=[Mn](=O)(=O)[O-], Cc1c2c(c(C=O)n1-c1ccccc1)C(C)(C#N)CC2(C)C to produce Cc1c2c(c(C(=O)O)n1-c1ccccc1)C(C)(C#N)CC2(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.