Using CS(=O)(=O)c1ccc(-c2cnn(-c3cccc(Br)c3)c(=O)c2-c2ccc(F)cc2)cc1 to produce CS(=O)(=O)c1ccc(-c2cnn(-c3cccc(-c4ccc(F)cc4)c3)c(=O)c2-c2ccc(F)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.