1-(3,5-diamino-1,2,4-triazol-1-yl)ethanone

2-amino-4,5,6,7-tetrahydro-1,2,4-triazolo[1,5-a]pyrimidin-7-one-5-spirocyclohexane

2,2-dimethyl-5-(3-methylbutanoyl)-1,3-dioxane-4,6-dione

3-(2,2-二甲基-4,6-二氧代-1,3-二噁烷-5-基)-3-氧代丙基氨基甲酸叔丁酯

2,2-dimethyl-5-(naphthalen-2-ylmethylidene)-1,3-dioxane-4,6-dione