Using Cc1cc([N+](=O)[O-])cc(Br)c1C(COC(=O)C(C)(C)C)OC(C)(C)C to produce Cc1cc(N)cc(Br)c1[C@@H](COC(=O)C(C)(C)C)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.