Using COc1ccc(NS(=O)(=O)c2c(F)c(F)c(F)c(F)c2Br)cc1O to produce COc1ccc(NS(=O)(=O)c2cc(F)c(F)c(F)c2F)cc1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.