Using CC(C)c1c(C=C(Br)Br)c(-c2ccc(F)cc2)nc2ccccc12 to produce C#Cc1c(-c2ccc(F)cc2)nc2ccccc2c1C(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.