{(2R,6R)-6-[(R)-2-(tert-Butyl-diphenyl-silanyloxy)-propyl]-2-methoxy-4-oxo-tetrahydro-pyran-2-yl}-acetic acid tert-butyl ester

(S)-6-((R)-2-Methoxymethoxy-propyl)-2-methyl-tetrahydro-pyran-2-ol

(S)-6-((R)-2-Methoxymethoxy-propyl)-tetrahydro-pyran-2-one