(2S)-pentane-1,2,5-triol

(2S)-5-O-benzylpentane-1,2,5-triol

(4R,6S)-9-(benzyloxy)-1,4,6-nonanetriol

(4R,6S)-1-methylsulfonyloxy-4,6-O-isopropylidene-9-(benzyloxy)-4,6-nonanediol

(6S)-1-triethylsilyloxy-4,4-S-S-propylidene-6-hydroxy-9-benzyloxy-nonane