(2S,3S,4S)-1,3-isopropylidenedioxy-2,4-dimethyl-5-trityloxypentane

(2R,3R,4S)-3,5-Isopropylidenedioxy-2,4-dimethylpentanal

(2S,3S,4S)-(1-tert-butyldimethylsilanyloxy)-2,4-dimethylhex-5-en-3-ol

(2S,3S,4S)-2,4-Dimethylhex-5-ene-1,3-diol