Using CC(C)(c1ccccc1)N1CCC(=O)C(c2ccccc2)C1=O to produce CC(C)(c1ccccc1)N1CCC(O)C(c2ccccc2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.