Using CC(C)(C#N)c1cc(F)c2c(=O)[nH]ccc2c1, O=Cc1c(Br)cccc1Br to produce CC(C)(C#N)c1cc(F)c2c(=O)n(-c3cccc(Br)c3C=O)ccc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.