Using COCn1c2ccc(F)cc2c2c(CBr)nn(-c3ccccc3)c(=O)c21, [C-]#N to produce COCn1c2ccc(F)cc2c2c(CC#N)nn(-c3ccccc3)c(=O)c21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.