Using COc1c(Br)ccc(NS(=O)(=O)c2ccccc2F)c1C(=O)OCc1ccccc1 to produce COc1c(Br)ccc(NS(=O)(=O)c2ccccc2F)c1C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.