5,5-bis(phenylmethoxymethyl)imidazolidine-2,4-dione

5-(cyclohex-2-en-1-ylmethyl)imidazolidine-2,4-dione

5-异丙基海因

8-Phenyl-1,3-diazaspiro[4.5]decane-2,4-dione

8-(2-phenylethyl)-1,3,8-triazaspiro[4.5]decane-2,4-dione