(R)-6-((S)-2,2-Dimethyl-[1,3]dioxolan-4-yl)-6-triisopropylsilanyloxymethyl-tetrahydro-pyran-2-one

2,2-Dimethyl-propionic acid (2R,3S)-4-[(R)-6-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-2-hydroxy-6-triisopropylsilanyloxymethyl-5,6-dihydro-4H-pyran-3-yl]-2,3-dimethyl-butyl ester

2,2-Dimethyl-propionic acid (2R,3S)-4-{(S)-6-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-6-formyl-2-[3-(4-methoxy-benzyloxy)-propyl]-5,6-dihydro-4H-pyran-3-yl}-2,3-dimethyl-butyl ester

2,2-Dimethyl-propionic acid (2R,3S)-4-{(R)-6-((S)-2,2-dimethyl-[1,3]dioxolan-4-yl)-2-[3-(4-methoxy-benzyloxy)-propyl]-6-triisopropylsilanyloxymethyl-5,6-dihydro-4H-pyran-3-yl}-2,3-dimethyl-butyl ester