Using ClCCCCCBr, COc1ccc(C(C#N)Sc2ccc(C)cc2)cc1OC to produce COc1ccc(C(C#N)(CCCCCCl)Sc2ccc(C)cc2)cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.