benzyl 2-((2R,6S)-6-((2S,4R,5S)-2-(benzyloxy)-4-((tert-butyldimethylsilyl)oxy)-7-((2S,6S)-6-(3-(2,2-dimethyl-4-oxo-4H-benzo[d][1,3]dioxin-5-yl)propyl)tetrahydro-2H-pyran-2-yl)-5-methylheptyl)tetrahydro-2H-pyran-2-yl)-2-methylpropanoate

2-((2R,6S)-6-(((mesitylsulfonyl)oxy)methyl)tetrahydro-2H-pyran-2-yl)-2-methylpropanoic acid

benzyl 2-((2R,6S)-6-(((mesitylsulfonyl)oxy)methyl)tetrahydro-2H-pyran-2-yl)-2-methylpropanoate

benzyl 2-((2R,6S)-6-((2S,4R,5S)-2-(benzyloxy)-4-((tert-butyldimethylsilyl)oxy)-5-methylhept-6-en-1-yl)tetrahydro-2H-pyran-2-yl)-2-methylpropanoate