(2S)-2-<(4S,5S)-5-Ethyl-2,2-dimethyl-1,2-dioxan-4-yl>-1-tosyloxypropane

(2S,3R,4R)-2-ethyl-1,3-isopropylidenedioxy-4-methyl-5-phenylthiopentane

(2S,3S,4S)-5-benzyloxymethoxy-2-ethyl-4-methylpentane-1,3-diol

(2S,3S,4S)-1-benzyloxymethoxy-4-ethyl-3,5-isopropylidenedioxy-2-methylpentane