Using CC(C)(C)OC(=O)N1[C@@H]2CC[C@@H](C2)[C@H]1c1nc2c([nH]1)-c1ccc(Br)cc1CC2 to produce CC(C)(C)OC(=O)N1[C@@H]2CC[C@@H](C2)[C@H]1c1nc2ccc3cc(Br)ccc3c2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.