Using COc1ccc(COC(=O)[C@H](CC(C)C)Nc2nn(C)cc2Br)cc1 to produce CC(C)C[C@H](Nc1nn(C)cc1Br)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.