(3R,4R)-1-苄基-3,4-二羟基吡咯烷-2,5-二酮

6-benzyl-2,3-dimethoxy-2,3-dimethylhexahydro-[1,4]dioxino[2,3-c]pyrrole

左旋酒石酸

苄胺

(-)-1 4-二-o-甲苯磺酰-l-异赤醇