Using Brc1ccccc1OCc1ccccc1, COc1c(C)c(C=O)c(OC)c(OC)c1OC to produce COc1c(C)c(C(O)c2ccccc2OCc2ccccc2)c(OC)c(OC)c1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.