((S)-3-benzyloxy-2,2-dimethyl-pent-4-enyloxy)-tert-butyl-dimethyl-silane

(S)-3-benzyloxy-5-(tert-butyl-dimethyl-silanyloxy)-4,4-dimethyl-pentanal

(3S)-3-(benzyloxy)-2,2-dimethyl-4-penten-1-ol

(3S,5R,7S)-7-benzyloxy-9-tert-butyldimethylsilyloxy-1-tert-butyldiphenylsilyloxy-8,8-dimethyl-3,5-O-isopropylidenenonane-3,5-diol

(3S,5R,7S)-7-benzyloxy-9-tert-butyldimethylsilyloxy-1-tert-butyldiphenylsilyloxy-8,8-dimethylnonane-3,5-diol