4-(furan-2-yl)butan-1-ol

2-hydroxy-1,6-dioxaspiro[4.5]dec-3-ene

5-[4-(tert-butyldimethylsiloxy)butyl]-5-methoxy-5H-furan-2-one

5-(4-hydroxybutyl)furan-2-carbaldehyde

7-(tert-Butyldimethylsiloxy)-3-methoxy-1,2-heptadiene