Glycerin-monoacetat

(2-oxo-5-phenyl-1,3-dioxolan-4-yl)methyl acetate

[7-(acetyloxymethyl)-3-oxo-2,4,6-trioxabicyclo[3.2.0]heptan-7-yl]methyl acetate

[3-acetyloxy-2-(5-oxo-2-phenyl-1,3-oxazol-4-ylidene)propyl] acetate

methyl 4-acetyloxy-3-(acetyloxymethyl)-2-benzamidobut-2-enoate