Using COc1ccc(CN2CCc3cc(C(C)(C)C=O)ccc3C2=O)cc1 to produce COc1ccc(CN2CCc3cc(C(C)(C)CO)ccc3C2=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.