Using CC(C)(C)[C@H](N)C(=O)O, O=C(O)CCC1c2ccccc2-c2ccccc21 to produce CC(C)(C)[C@H](NC(=O)CCC1c2ccccc2-c2ccccc21)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.