(3aS,6S,7S,7aS)-6-benzyloxy-2,2-dimethyl-7-(tert-butyldimethylsilyl)oxy-tetrahydro-1,3-dioxolo[4,5-c]pyran

2-O-(t-butyldimethylsilyl)-3,4-O-isopropylidene-L-ribopyranose

4-{2-[(3S,4R,7S)-9-benzyloxy-4-(tert-butyldimethylsilyl)oxy-3-(4-methoxybenzyl)oxy-4-methyl-7-(triethylsilyl)oxynonyl]-1,3-dithian-2-yl}butyraldehyde

ethyl (2E,4R,5S,6S)-4-(tert-butyldimethylsilyl)oxy-5,6-(dimethylmethylenedioxy)-7-hydroxy-2-heptenoate

ethyl (3R,4R,5S,6S)-4-(tert-butyldimethylsilyl)oxy-7-(tert-butyldiphenylsilyl)oxy-5,6-(dimethylmethylenedioxy)-3-methylheptanoate