[(4S,6R)-6-(Bis-ethylsulfanyl-methyl)-2,2-dimethyl-[1,3]dioxan-4-yl]-acetic acid methyl ester

methyl (3S,5R)-3,5-isopropylidenedioxy-6-oxohexanoate

(R)-6-Oxo-3,6-dihydro-2H-pyran-2-carbaldehyde

(4S,6R)-4-Hydroxy-6-((Z)-styryl)-tetrahydro-pyran-2-one