Using CC(C)(C)c1ccc(O)c(C(C)(C)C)c1, COc1ccc(CO)cc1 to produce COc1ccc(Cc2cc(C(C)(C)C)cc(C(C)(C)C)c2O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.