2-[(2R,6S)-6-((R)-2-Benzyloxy-pent-4-enyl)-tetrahydro-pyran-2-yl]-2-methyl-propionic acid methyl ester

2-Hydroxy-6-[3-((2S,6S)-6-vinyl-tetrahydro-pyran-2-yl)-propyl]-benzoic acid (1R,2S)-1-((S)-2-benzyloxy-3-{(2S,6R)-6-[1-methyl-1-(2-trimethylsilanyl-ethoxycarbonyl)-ethyl]-tetrahydro-pyran-2-yl}-propyl)-2-methyl-but-3-enyl ester