ethyl N-(2-hydroxy-2-phenylethyl)carbamate

1,3-diphenyl-1,3-diazetidine-2,4-dione

ethyl N-phenyl-N-(phenylcarbamoyl)carbamate

1,3,5-tris(3-chlorophenyl)-1,3,5-triazinane

四丁基乙醇铵