2,2-dimethyl-5-[(pyridazin-3-ylamino)methylidene]-1,3-dioxane-4,6-dione

3-(3-甲氧基-3-氧代丙酰基)哌啶-1-羧酸叔丁酯

2,2-dimethyl-5-octyl-1,3-dioxane-4,6-dione

2,2-dimethyl-5-undec-10-enyl-1,3-dioxane-4,6-dione

5-cyclopentyl-2,2-dimethyl-1,3-dioxane-4,6-dione