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