N-benzyl-2-hydroxy-2-phenylacetamide

2,2-dimethyl-5-phenyl-3-propan-2-yl-1,3-oxazolidin-4-one

3-hydroxy-1-isopropyl-4,4-dimethyl-3-phenyl-azetidin-2-one

D-(-)-扁桃酸

cis-3,4-diphenyl-1-benzyl-3-hydroxyazetidin-2-one