Using CC(C)(C)OC(=O)N[C@@H](C(=O)N1CCC[C@H]1C(=O)O)c1ccccc1, Nc1cn2cc(Br)sc2n1 to produce CC(C)(C)OC(=O)N[C@H](C(=O)N1CCC[C@@H]1C(=O)Nc1cn2cc(Br)sc2n1)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.