The enantioselectivity of N-dodecanoyl-L-proline-3,5-dimethyl-anilide is also good, but the basic line fluctuates strongly due to containing benzene ring in its molecular structure.

虽然用N-十二-L-氨酸-3,5-二甲苯胺作添加剂，手选择也较好，但由于含有苯，吸收增强，线波动严重。