Using CC1(c2cccc(I)c2)C2CN(CCCc3ccccc3)CC21, [C-]#N to produce CC1(c2cccc(C#N)c2)C2CN(CCCc3ccccc3)CC21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.