Using CC(C)(C)OC(=O)N1CCC2(CC1)Oc1ccccc1-n1cccc12, O=C1CCC(=O)N1Br to produce CC(C)(C)OC(=O)N1CCC2(CC1)Oc1ccccc1-n1c(Br)ccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.