methyl 2-(dimethylcarbamoylamino)-2-hydroxyacetate

1,3-二甲基-5-环己基巴比妥酸

3-carbamoyl-1,1-dimethylurea

4,5-dihydroxy-1,3-dimethyl-4,5-diphenylimidazolidin-2-one

1,3-dimethyl-1-(methylcarbamoyl)urea