Using CC(C)[C@H](NC(=O)OCC1c2ccccc2-c2ccccc21)C(=O)ON1C(=O)CCC1=O, C[C@H](N)C(=O)OC(C)(C)C to produce CC(C)[C@H](N)C(=O)N[C@@H](C)C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.