5,5-dimethyl-3-(morpholin-4-ylmethyl)imidazolidine-2,4-dione

甲基碘

5,5-二甲基海因

5-ethyl-3,5-dimethyl-imidazolidine-2,4-dione

3,4,4-trimethyl-2,5-dioxoimidazolidine-1-carbonitrile