氧化苯胂

[(E)-1-nitroethylideneamino] benzoate

2-cyclopent-1-enyl-1-phenyl-ethanone

4-(9H-fluoren-9-yl)-4-phenylbutan-2-one

optically inactive 2-hydroxy-3-nitro-1,4-diphenyl-butane-1,4-dione