4-hydroxy-2-methyl-6-(2-nitrobenzyloxy)-5-<2-(trimethylsilyl)ethoxymethoxy>tetrahydropyran-3-one

<4-hydroxy-2-methyl-6-(2-nitrobenzyloxy)-5-<2-(trimethylsilyl)ethoxymethoxy>tetrahydropyran-3-ylidene>acetic acid methyl ester

3a-(2-hydroxyethyl)-4-methyl-6-(2-nitrobenzyloxy)-7-<2-(trimethylsilyl)ethoxymethoxy>tetrahydro<1,3>oxathiolo<4,5-c>pyran-2-thione

5-hydroxy-2-methyl-3-(methylthio)-6-((2-nitrobenzyl)oxy)-3-vinyltetrahydro-2H-pyran-4-yl benzoate

2-methyl-6-(2-nitrobenzyloxy)-5-<2-(trimethylsilyl)ethoxymethoxy>tetrahydropyran-3,4-diol