digitoxigen O-[2'',6''-dideoxy-β-D-ribo-hexopyranosyl]-(1->4)-O-[3'-O-acetyl-2',6'-dideoxy-β-D-ribo-hexopyranosyl]-(1->4)-(3-O-acetyl-2,6-dideoxy-β-D-ribo-hexopyranoside

3,4-bis-(tert-butyldimethylsilyl)-1,5-anhydro-2,6-dideoxy-D-ribo-hex-1-enitol

(2R,3R,4S)-4-(tert-butyldimethylsiloxy)-hex-5-yne-2,3-diol 2-benzoate ester

4-O-[3,4-bis-(tert-butyldimethylsilyl)-2,6-dideoxy-β-D-allopyranosyl]-3-(tert-butyldimethylsilyl)-1,5-anhydro-2,6-dideoxy-D-ribo-hex-1-entol

(2R,3R,4S)-3-(((2S,4S,5R,6R)-4,5-bis((tert-butyldimethylsilyl)oxy)-6-methyltetrahydro-2H-pyran-2-yl)oxy)-4-((tert-butyldimethylsilyl)oxy)hex-5-yn-2-ol