Using CC(C)=CCc1c(O)cc(O)cc1-c1cc2ccc(O)cc2o1 to produce CC(C)=CCc1cc2cc(-c3cc(O)cc(O)c3)oc2cc1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.