ethyl 3-((2S,3S,5S,6R)-6-(acetamidomethyl)-5-((tert-butyldimethylsilyl)oxy)-3-methyltetrahydro-2H-pyran-2-yl)propanoate

(3S,4R)-3-O-benzyl-4,5-O-isopropylidene-3,4,5-trihydroxypentanal