Using Cn1cc(Br)c(-c2ccccc2)n1, CCC(CC)c1cc(C)nn2cc(C)nc12 to produce CCC(CC)c1cc(C)nn2c(-c3cn(C)nc3-c3ccccc3)c(C)nc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.