Using CC(Br)c1ccc(CC2CCCCC23OCCO3)c(Cl)c1, [C-]#N to produce CC(C#N)c1ccc(CC2CCCCC23OCCO3)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.