(S)-5-[3-(tert-Butyl-dimethyl-silanyloxy)-propyl]-4-hydroxy-3,5-dimethyl-5H-furan-2-one

(5S)-5-(3-hydroxyoct-4-yn-1-yl)-4-(methoxymethoxy)-3,5-dimethylfuran-2(5H)-one

(S)-5-(3-((tert-butyldimethylsilyl)oxy)propyl)-4-(methoxymethoxy)-3,5-dimethylfuran-2(5H)-one

(S)-4-(methoxymethoxy)-3,5-dimethyl-5-(3-oxooct-4-yn-1-yl)furan-2(5H)-one

(R)-3-(methoxymethoxy)-2,4-dimethyl-5-oxo-2,5-dihydrofuran-2-carbaldehyde