Using CN(C)C(=O)[C@@H]1CC[C@H](NC(=O)OCc2ccccc2)[C@@H](NC(=O)OC(C)(C)C)C1 to produce CN(C)C(=O)[C@H]1CC[C@H](N)[C@H](NC(=O)OC(C)(C)C)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.