Using c1ccc2c(c1)[nH]c1ccccc12, CC(C)(C)CC(C)(C)Br to produce CC(C)CC(C)(C)Cc1ccc2[nH]c3ccc(CC(C)(C)CC(C)C)cc3c2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.