Using [O-][I+3]([O-])([O-])[O-], COC(=O)c1c(OCc2ccccc2)c(=O)c(Br)cn1CC(O)CO to produce COC(=O)c1c(OCc2ccccc2)c(=O)c(Br)cn1CC(O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.