(2'S,3'S,3R,4R,5S,6S)-1-methoxycarbonyl-3-O-benzyl-4-O,5-O-(2',3'-dimethoxy-butane-2',3'-diyl)-6-fluoro-cyclohex-1-ene-3,4,5-triol

(2'S,3'S,3R,4R,5S)-1-iodo-3-O-benzyl-4-O,5-O-(2',3'-dimethoxybutane-2',3'-diyl)-6,6-difluoro-cyclohex-1-ene-3,4,5-triol

(3aR,4S,5aR,8aR,8bR)-2,2,7,7-Tetramethyl-hexahydro-benzo[1,2-d;3,4-d']bis[1,3]dioxole-4-carboxylic acid methyl ester

(3aR,4S,5R,6S,7R,7aS)-2,2-Dimethyl-6-((3aR,4R,5aR,8aR,8bR)-2,2,7,7-tetramethyl-hexahydro-benzo[1,2-d;3,4-d']bis[1,3]dioxol-4-ylmethoxy)-hexahydro-benzo[1,3]dioxole-4,5,7-triol