(2R,3R,3aR,4R,5R,6aS)-2-Ethyl-5-hydroxymethyl-3,3a-dimethyl-hexahydro-furo[2,3-b]furan-3,4-diol

(2R,3R,3aR,4S,5S,6aS)-5-Benzyloxymethyl-2-ethyl-3,3a-dimethyl-hexahydro-furo[2,3-b]furan-3,4-diol

(2R,3R,3aR,4R,5R,6aS)-5-Benzyloxymethyl-2-ethyl-3,3a-dimethyl-hexahydro-furo[2,3-b]furan-3,4-diol

(2R,3R,4R)-2-Ethyl-4-((E)-3-hydroxy-propenyl)-5-methoxy-3,4-dimethyl-tetrahydro-furan-3-ol