(R,R)-(-)-2,3-丁二醇

DL-扁桃酸甲酯

meso-dimethyl 2,3-dihydroxy-2,3-diphenylsuccinate

α,β-dimethyl-β,γ-dihydroxy-γ-phenylbutyrolactone

2,3-二甲基-6-硝基喹喔啉