2-(benzyloxy)propane-1,3-diyl bis(4-methylbenzenesulfonate)

(S)-1-{2-[(2S,3R,6S)-2-(tert-Butyl-dimethyl-silanyloxy)-6-(2-hydroxy-ethyl)-3-methyl-tetrahydro-pyran-2-yl]-2-oxo-acetyl}-piperidine-2-carboxylic acid benzyl ester

(S)-1-{2-[(2R,3R,6S)-6-((R)-2-Acetoxy-2-methoxy-ethyl)-2-hydroxy-3-methyl-tetrahydro-pyran-2-yl]-2-oxo-acetyl}-piperidine-2-carboxylic acid benzyl ester