2-((2S,6R)-6-(2-((tert-butyldimethylsilyl)oxy)ethyl)tetrahydro-2H-pyran-2-yl)acetaldehyde

2-((2R,6S)-6-(((4R,6S)-6-(((2R,3S,6R,8S,9S)-8-formyl-9-methoxy-3-methyl-1,7-dioxaspiro[5.5]undec-4-en-2-yl)methyl)-2,2-dimethyl-1,3-dioxan-4-yl)methyl)tetrahydro-2H-pyran-2-yl)ethyl pivalate

2-((2R,6S)-6-(((4R,6S)-6-(((2R,3S,6R,8R,9S)-8-(hydroxymethyl)-9-methoxy-3-methyl-1,7-dioxaspiro[5.5]undec-4-en-2-yl)methyl)-2,2-dimethyl-1,3-dioxan-4-yl)methyl)tetrahydro-2H-pyran-2-yl)ethyl pivalate

2-((2R,6S)-6-((2S,4S)-5-((2R,3S,6R,8R,9S)-8-(((tert-butyldiphenylsilyl)oxy)methyl)-9-methoxy-3-methyl-1,7-dioxaspiro[5.5]undec-4-en-2-yl)-2,4-dihydroxypentyl)tetrahydro-2H-pyran-2-yl)ethyl pivalate

(2S,4S)-1-((2S,6R)-6-(2-((tert-butyldimethylsilyl)oxy)ethyl)tetrahydro-2H-pyran-2-yl)-5-((2R,3S,6R,8R,9S)-8-(((tert-butyldiphenylsilyl)oxy)methyl)-9-methoxy-3-methyl-1,7-dioxaspiro[5.5]undec-4-en-2-yl)pentane-2,4-diol

2-((2R,6S)-6-(((4R,6S)-6-(((2R,3S,6R,8R,9S)-8-((1S,3S)-1-hydroxy-3-methyl-2-oxopent-4-en-1-yl)-9-methoxy-3-methyl-1,7-dioxaspiro[5.5]undec-4-en-2-yl)methyl)-2,2-dimethyl-1,3-dioxan-4-yl)methyl)tetrahydro-2H-pyran-2-yl)ethyl pivalate

(R)-3-(tert-butyldimethylsilanyloxy)-4-{(2S,6R)-6-[2-(tert-butyldimethylsilanyloxy)ethyl]tetrahydropyran-2-yl}butyraldehyde