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

(3aS,4R,6R,7R,7aR)-7-Hydroxy-4-methyl-6-(2-nitro-benzyloxy)-tetrahydro-[1,3]dioxolo[4,5-c]pyran-2-one

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