(2R,3S,4aR,5aS,8R,9S,10aR,11aS)-2-allyl-3-((tert-butyldimethylsilyl)oxy)-9-(2-hydroxyethyl)-3,4a-dimethyldodecahydropyrano[2',3':5,6]pyrano[3,2-b]oxepin-8-ol

[(2R,3S)-3-(tert-Butyl-dimethyl-silanyloxy)-6-methoxy-tetrahydro-pyran-2-yl]-methanol

(2R,3S,4aR,8aS)-6-methoxy-2-methyl-2-vinyloctahydropyrano[3,2-b]pyran-3-ol

(2R,3S,4aR,6S,7R,8aS)-6-(2-(1,3-dithian-2-yl)ethyl)-2-allyl-3,4a-dimethyloctahydropyrano[3,2-b]pyran-3,7-diol

ethyl (E)-3-(((2S,3R,4aS,6R,7S,8aR)-2-(2-(1,3-dithian-2-yl)ethyl)-6-allyl-7-((tert-butyldimethylsilyl)oxy)-7,8a-dimethyloctahydropyrano[3,2-b]pyran-3-yl)oxy)acrylate

ethyl 2-((2R,3S,4aR,5aS,9aR,10aS)-8-methoxy-3,4a-dimethyl-3-((trimethylsilyl)oxy)decahydro-2H-dipyrano[3,2-b:2',3'-e]pyran-2-yl)acetate

(2R,3S)-6-methoxy-2-(((2S,3S)-3-methyl-3-vinyloxiran-2-yl)methyl)tetrahydro-2H-pyran-3-ol