Using CC(=O)N[C@@H](CNC(=O)OC(C)(C)C)C(=O)OCc1ccccc1 to produce CC(=O)N[C@@H](CN)C(=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.