Using CC(=O)OC(C(=O)c1ccc(Br)cc1)c1ccc(S(C)(=O)=O)c(F)c1, [NH4+] to produce Cc1nc(-c2ccc(Br)cc2)c(-c2ccc(S(C)(=O)=O)c(F)c2)o1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.