Benzoic acid (2S,3R,4S,5R,6R)-6-(tert-butyl-diphenyl-silanyloxymethyl)-4,5-dihydroxy-2-p-tolylsulfanyl-tetrahydro-pyran-3-yl ester

Benzoic acid (3aS,4R,6S,7R,7aS)-4-(tert-butyl-diphenyl-silanyloxymethyl)-2,2-dimethyl-6-p-tolylsulfanyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-7-yl ester