Using C#Cc1ccccc1, CCN1C(=O)N(c2ncc(Br)cn2)C2CCCC21 to produce CCN1C(=O)N(c2ncc(C#Cc3ccccc3)cn2)C2CCCC21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.