Using CC(C)C[C@H](N)C(=O)OCc1ccccc1, CC(C)C[C@H](NC(=O)OCC1c2ccccc2-c2ccccc21)C(=O)O to produce CC(C)C[C@H](NC(=O)OCC1c2ccccc2-c2ccccc21)C(=O)N[C@@H](CC(C)C)C(=O)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.