Using CO[C@H](c1ccccc1)[C@H](CC(C)C)N1C(=O)c2ccccc2C1=O to produce CO[C@H](c1ccccc1)[C@@H](N)CC(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.