3-amino-4-hydroxy-4,5-diphenyl-1,3-oxazolidin-2-one

2,2-dimethyl-4,5-diphenyl-1,3,2-dioxasilole

(2-acetyloxy-1,2-diphenylethenyl) acetate

2-(2-oxo-4,5-diphenyl-1,3-oxazol-3-yl)acetic acid