Using COC(=O)[C@@]1(C)CC[C@@H](Nc2c(C(N)=O)cnn3cc(Br)cc23)C1(C)C to produce CC1(C)[C@H](Nc2c(C(N)=O)cnn3cc(Br)cc23)CC[C@]1(C)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.