4,6-dimethyl-1-phenylpyrimidin-2-one

3-苯基-2-氧代己内酰脲

1-苯基咪唑啉-2,4,5-三酮

N-ethoxycarbonyl-N'-phenylurea

1-methyl-3-phenylimidazolidine-2,4-dione