Using CC(C)(C)c1cc2c(C(C)(C)C)c(O)c(C(C)(C)C)cc2o1 to produce CC(C)(C)c1cc2c(c(C(C)(C)C)c1O)CC(C(C)(C)C)O2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.