1-(2,2-Dimethyl-[1,3]dioxan-5-yl)-2-(5-ethyl-5,6-dihydro-4H-pyran-2-yl)-ethanol

Methyl 4-<(phenylselenyl)methyl>hexanoate

4-hydroxymethyl-hexanal cyclohemiacetal

Methyl 4-ethyl-4-oxiranylpentanoate