Using CC(C)(C)c1ccc(O)cc1, C=C(C)c1ccc(OC)cc1 to produce COc1ccc(C(C)(C)c2cc(C(C)(C)C)ccc2O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.