(2R,6S)-2-(tert-butyldimethylsilanyloxymethyl)-6-((4RS)-2,2-dimethyl-[1,3]dioxolan-4-ylmethyl)dihydropyran-3-one

[(2R,3R,6S)-6-((2RS)-2,3-dihydroxypropyl)-3-methyltetrahydropyran-2-yl]acetyl methyl ester

[(2R,3R,6S)-6-((4RS)-2,2-dimethyl-[1,3]dioxolan-4-ylmethyl)-3-methyltetrahydropyran-2-yl]acetyl methyl ester

{(2R,3R,6S)-6-[(2RS)-(3E)-2-(tert-butyldimethylsilanyloxy)-pent-3-enyl]-3-methyltetrahydropyran-2-yl}acetic acid

[(2R,3R,6S)-3-methyl-6-(2-oxoethyl)tetrahydropyran-2-yl]acetyl methyl ester