3-phenyl-2-[(2-phenylacetyl)amino]propanoic acid

1,4,5-三苯基吡咯烷-2,3-二酮

2-benzyl-2-hydroxy-4-oxopentanedioic acid

2-氧代-3-苯基-丙醛

1,5-diphenylpentane-2,4-dione