Using COc1ccc(B(O)O)c(OC)c1, COc1ccc2c(=O)c(Br)coc2c1 to produce COc1ccc(-c2coc3cc(OC)ccc3c2=O)c(OC)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.