Using O=C(Nc1ccc(CCBr)cc1)C(F)(F)C(F)(F)C(F)(F)F, [C-]#N to produce N#CCCc1ccc(NC(=O)C(F)(F)C(F)(F)C(F)(F)F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.