Using Oc1cccc(O)c1, C=C(C)c1ccc(C(=C)C)cc1 to produce CC(C)(c1ccc(C(C)(C)c2ccc(O)cc2O)cc1)c1ccc(O)cc1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.