(6R)-6-((Z,3R)-3-hydroxy-3-(4R,5S)-5-[(1S)-1-hydroxyethyl]-2,2-dimethyl-1,3-dioxolan-4-yl-1-propenyl)-5,6-dihydro-2H-2-pyranone

acetic acid 1-[5-(1-acetoxy-ethyl)-2,2-dimethyl-[1,3]dioxolan-4-yl]-3-(6-oxo-3,6-dihydro-2H-pyran-2-yl)-allyl ester

(6R)-6-[(Z,3R)-3-[(4-methoxybenzyl)oxy]-3-((4R,5S)-5-[(1S)-1-[(4-methoxybenzyl)oxy]ethyl]-2,2-dimethyl-1,3-dioxolan-4-yl)-1-propenyl]-5,6-dihydro-2H-2-pyranone

(Z,4R)-4-[(4-methoxybenzyl)oxy]-4-((4R,5S)-5-[(1S)-1-[(4-methoxybenzyl)oxy]ethyl]-2,2-dimethyl-1,3-dioxolan-4-yl)-2-buten-1-ol

methyl-(Z,4R)-4-[(4-methoxybenzyl)oxy]-4-((4R,5S)-5-[(1S)-1-[(4-methoxybenzyl)oxy]ethyl]-2,2-dimethyl-1,3-dioxolan-4-yl)-2-butenoate