3-(2-methyl-1,3-dioxolan-2-yl)-1-(2-methyl-2-oxiranyl)-1-propanone

2-methyl-2-(4-formyl-4-methyl-3-pentenyl)-1,3-dioxolane

1-(2-methyl-2-oxiranyl)-1,4-pentanedione

(+/-)-2-hydroxy-1,5-dimethyl-6,8-dioxabicyclo<3.2.1>octane

2-methyl-5-(2-methyl-1,3-dioxolan-2-yl)-1-penten-3-one