(3aS,5S,8R,9aS,10S,12aR,12bS)-10-(but-3-en-1-yl)-5-((tert-butyldimethylsilyl)oxy)-6,9a,13,13-tetramethyl-8-((triethylsilyl)oxy)-4,5,8,9,9a,10,12a,12b-octahydro-12H-3a,7-methanofuro[3',4':3,4]cyclodeca[1,2-d][1,3]dioxole-2,12-dione

3-((3aS,5S,8R,9aS,10S,12aR,12bS)-5-((tert-butyldimethylsilyl)oxy)-6,9a,13,13-tetramethyl-2,12-dioxo-8-((triethylsilyl)oxy)-4,5,8,9,9a,10,12a,12b-octahydro-12H-3a,7-methanofuro[3',4':3,4]cyclodeca[1,2-d][1,3]dioxol-10-yl)propanal

(3aS,5S,8R,9aS,10S,13aR,13bS)-5-((tert-butyldimethylsilyl)oxy)-10-((2-methoxypropan-2-yl)oxy)-6,9a,14,14-tetramethyl-8-((triethylsilyl)oxy)-4,5,8,9,9a,10,11,12,13a,13b-decahydro-13H-3a,7-methanobenzo[3,4]cyclodeca[1,2-d][1,3]dioxole-2,13-dione

methyl (3aS,5S,8R,9aS,10S,13aR,13bS)-5-((tert-butyldimethylsilyl)oxy)-10,13-dihydroxy-6,9a,14,14-tetramethyl-2-oxo-8-((triethylsilyl)oxy)-5,8,9,9a,10,11,13a,13b-octahydro-4H-3a,7-methanobenzo[3,4]cyclodeca[1,2-d][1,3]dioxole-12-carboxylate