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

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

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

环对甲基亚苄基丙二酸-2,2-丙二醇

2,2-dimethyl-5-(((phenylmethoxy)carbonyl)oxy)-1,3-dioxane-4,6-dione