米氏酸

甲醇

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

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

cis-Methyl 3,4-epoxy-4-phenylbutanoate