Using COc1cc(C=O)c(Br)c(OC)c1OC, COc1ccc(Br)c(C=O)c1OS(C)(=O)=O to produce COc1ccc(-c2c(C=O)cc(OC)c(OC)c2OC)c(C=O)c1OS(C)(=O)=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.