2-methyl-3-methylsulfanyl-6-(2-nitrobenzyloxy)-5-<2-(trimethylsilyl)ethoxymethoxy>-3-vinyltetrahydropyran-4-ol

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

<4-methyl-6-(2-nitrobenzyloxy)-2-thioxo-7-<2-(trimethylsilyl)ethoxymethoxy>tetrahydro<1,3>oxathiolo<4,5-c>pyran-3a-yl>acetic acid methyl ester

benzoic acid 2-methyl-3-methylsulfanyl-6-(2-nitrobenzyloxy)-5-<2-(trimethylsilyl)ethoxymethoxy>-3-vinyltetrahydropyran-4-yl ester

Benzoic acid (2R,3S,4R,5R,6R)-3-(1,2-dihydroxy-ethyl)-2-methyl-3-methylsulfanyl-6-(2-nitro-benzyloxy)-5-(2-trimethylsilanyl-ethoxymethoxy)-tetrahydro-pyran-4-yl ester