Using ClBr, Cc1cc(=O)[nH]c2ccc(C#Cc3ccc(-c4ccc(Cl)cc4)cn3)cc12 to produce Cc1cc(Br)nc2ccc(C#Cc3ccc(-c4ccc(Cl)cc4)cn3)cc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.