Using C=CCBr, N#Cc1nn(-c2c(Cl)cc(C(F)(F)F)cc2Cl)c(N)c1C(=O)C(F)(F)F to produce C=CCNc1c(C(=O)C(F)(F)F)c(C#N)nn1-c1c(Cl)cc(C(F)(F)F)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.