(1S,4S,5R,6S)-5-hydroxy-4-methyl-3,7-dioxabicyclo[4.1.0]heptan-2-one

(2S,3S)-5-acetoxy-6-methyl-5,6-dihydropyran-2-one

(2R,3R,4R,6R)-4-Benzyloxy-6-ethoxy-2-methyl-tetrahydro-pyran-3-ol

(2R,3R,4S)-Hept-6-ene-2,3,4-triol