Using C#C[Si](C)(C)C, Nc1cc(C(F)(F)F)cc(Br)c1I to produce C[Si](C)(C)C#Cc1c(N)cc(C(F)(F)F)cc1Br, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.