Using CB1OBOBO1, COc1cccc(C)c1-n1nc(C(C)(C)C)c(Br)c1N to produce COc1cccc(C)c1-n1nc(C(C)(C)C)c(C)c1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.