2,3-dioxo-N-phenyl-1-indolinecarboxamide

1,3,3,4-tetraphenylazetidin-2-one

2-methylpropyl N-phenylcarbamate

5-benzyl-6-hydroxy-1,2,3-triphenylpyrimidin-1-ium-4-one

(4-methoxyphenyl) cyanate