Using CN1C2CCC1CC(N1c3ccccc3Sc3cc(Br)ccc31)C2 to produce Brc1ccc2c(c1)Sc1ccccc1N2C1CC2CCC(C1)N2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.