(3R,5S,6S)-6-[(1S,3S)-3-((R)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-1-iodo-butyl]-3,5-dimethyl-tetrahydro-pyran-2-one

(4S,5S)-5-Iodomethyl-4-methyl-dihydro-furan-2-one

(2R,3S,5R)-5-((2S,3S,5R)-3,5-Dimethyl-6-oxo-tetrahydro-pyran-2-yl)-3-methyl-tetrahydro-furan-2-carbothioic acid S-pyridin-2-yl ester

(4S,5R)-dihydro-5-hydroxymethyl-4-methyl-2(3H)-furanone

(S)-(+)-3-methyl-4-pentenoic acid