Using C[C@@H](N[C@@H]1CCN(C(=O)OC(C)(C)C)CC1(C)C)c1ccccc1 to produce CC(C)(C)OC(=O)N1CC[C@@H](N)C(C)(C)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.